Mechanisms of light energy transduction in photosynthetic membranes of higher plants, green algae, cyanobacteria and their mutants;
Role of the structural organization of pigment-protein complexes, lipid composition and physicochemical properties of the thylakoid membranes for the effectiveness of primary photosynthetic processes;
Sustainability of the photosynthetic apparatus to different abiotic stress factors (drought, salinity, extreme temperatures, high-light intensity and UV radiation, heavy metals, );
Mechanisms of adaptation of different plant species to unfavorable environmental conditions;
Role of lipid-protein interactions in responses of photosynthetic organisms to environmental changes;
Involvement of reactive oxygen species in stress-induced inactivation processes and antioxidant protection;
Role of exogenously applied nanoparticles and signaling molecules in improving plant stress tolerance.
Research projects
Current projects
Investigating the role of polyphenols and the effect of nanocomposite-based humic acid on basil photosynthesis under drought conditions”, sponsored by Bulgarian Science Research Fund, КП-06-М 76/3,
Bulgarian National Science Fund, 2023-2025,
Project leader: Assoc. Prof. Martin Stefanov, PhD
Nitric oxide-induced defense mechanisms of the photosynthetic apparatus and the photosynthetic process under salinity, КП-06-Н36/9,
Bulgarian National Science Fund, 2019-2023,
Project leader: Prof. Emilia Apostolova, PhD
Past projects
Functional activity of the photosynthetic apparatus of C3 and C4 type plants under salt stress conditions,
Project for future and science career development, National Research Programme “Young scientists and postdoctoral students” 2022-2024
Young scientist – Sen. Assist. Prof. Martin Stefanov, PhD; Scientific supervisor – Prof. Emilia Apostolova, PhD
National Science Program “Healthy food for strong bioeconomics and quality of life”, Funded by MES, ДСД-3, 2019-2023
Coordinator from IBPhBME-BAS Prof. Antoaneta Popova
Influence of drought on photosynthesis of corn and sorghum, КП-06-ПМ- 46/3,
Bulgarian National Science Fund, 2020-2022,
Project leader: Sen. Assist. Prof. Martin Stefanov, PhD
Structure-functional characterization of cyanobacterial mutants during state transitions.
Bilateral Agreements for Scientific Cooperation between the Bulgarian Academy of Sciences and the Hungarian Academy of Sciences (2019-2021)
Project coordinator from IBPhBME-BAS: Assoc. Prof. Radka Vladkova
Synthesis of metallic nanoparticles and evaluating its uptake and effects on photosynthesis using biophysical techniques
Cooperation between Bulgarian Academy of Sciences and Biophysical Department, Faculty of Sciences, Cairo University, Giza, Egypt, 2019-2021.
Project coordinator from IBPhBME-BAS Prof. E. Apostolova
Role of carotenoids for effectiveness and stability of photosynthetic apparatus of higher plants exposed to changes in environmental conditions, KП-06-Н26/11,
Bulgarian National Science Fund, 2018-2021
Project coordinator: prof. Antoaneta Popova
Protection and adaptation of Paulownia under salt stress, Program for career development of young scientists, BAS 2017-2019
Project leader: PhD student Martin Stefanov
Scientific supervisor: Prof. Dr. Emilia Apostolova
Impact of excessive nitrogen and metal pollutions on plant defence mechanisms,
Bilateral scientific and technical cooperation between the Republic Bulgaria and Slovak Republic, National Science Fund: Project DNTS/Slovakia 01/10, 2016-2019
Project coordinator from IBPhBME-BAS: Prof. Emilia Apostolova
Potential evaluation of different plant species for phytoremediation of heavy metal pollution. Mechanisms of tolerance of the photosynthetic apparatus, Bilateral Agreements for Scientific Cooperation between the Bulgarian Academy of Sciences and The Aristotle University of Thessaloniki, Greece (2018-2020)
Project coordinator from BAS: Assoc. Prof. A.G. Dobrikova
Effect of high light intensity on the photosynthetic apparatus of two hybrid lines Paulownia grown in saline soils
Program for career development of young scientists, BAS, ДФНП-138/12.05.2016, 2016-2017
Young scientist: Martin Stefanov – PhD student
Supervisor: Prof. Emilia Apostolova
Effects of Chlorella vulgaris on the photosynthetic apparatus of the rice plants in terms of cadmium Program for career development of young scientists, BAS, ДФНП-137/12.05.2016, 2016-2017
Young scientist: Ekaterina Yotsova – PhD student
Supervisor: Prof. Emilia Apostolova
Prenylquinones and carotenoids – potential mediators of tolerance of higher plants to combined light and temperature stress Ministry of Education, Yough and Science, Bulgarian-Swiss Investigation Programm, № IZEBZO-143169/1, 2012-2015
Coordinator: Prof. Maya Velitchkova
Effect of reduced carotenoid content for stability of photosynthetic apparatus towards high light intensity of Arabidopsis thaliana. Investigation in vivo,
Project funded by BAS – BAS, 2015-2017
Coordinator: Assoc. Prof. Antoaneta Popova
Characterization of the process of photobleaching of photosynthetic pigments in thylakoid membranes of Arabidopsis thaliana, wt and carotenoid mutant lut2, under high light illumination
Project funded by BAS – BAS, 2015-2017
Coordinator: Assoc. Prof. Antoaneta Popova
Effect of antioxidants and signaling molecules on the photosynthetic apparatus and its resistance to abiotic stress
Project funded by BAS, 2015-2016
Coordinator: Assoc. Prof. Anelia G. Dobrikova
Adaptation mechanisms of photosynthetic apparatus to salinization
Project funded by BAS, 2015-2017
Coordinator: Prof. Dr. Emilia Apostolova
Influence of temperature and light on the kinetics of transitions between state 1 and state 2 and their characteristics in vivo. Role of cytochrome b6f complex in their regulation.
Project funded by BAS, 2014-2016
Coordinator: Assoc. Prof. Radka Vladkova
Possibilities for application of green algae for creation of biosensors for registration of herbicides and heavy metals
Project funded by BAS – BAS, 2013-2015
Coordinator: Prof. Emilia Apostolova
Studies on the salinity tolerance of two lines Paulownia
Joint project of Sofia University – Faculty of Biology and IBPhBME – BAS, 2014
Project leader: Prof. Y. Markovska
Investigation of V-B irradiation on the photosynthetic apparatus of different ecotypes of Arabidopsis thaliana
Budgetary subsidy of Bulgarian Academy of Sciences; 2011 – 2013
Project leader: Assoc. Prof. A. Popova
Swelling of spongious lipid phase by insertion of peptides, polymers and amphiphilic substances Bilateral project between BAS and CAS, 2011 Project leader: Dr. R. Mutafchieva
Antarctic algae – model system for oxidative stress (ДО02-317/08) National Science Fund, 2009-2012 Project leader: Assoc. Prof. Dr. I. Puneva
Development of biosensors using photoexitable membranes
National Science Fund, № БИн-01/07,
Indo-Bulgarian inter-governmetal programme of cooperation in science and technology; 2007 – 2012
Design of new ligands of opiodic receptors: Synthesis and analgetic activity of non-narcotic cationic opiodic oligopeptides
National Science Fund, MU-FS-13 (2007-2010). Joint project between IMB, IBPBME anf INB – BAS
Project leader: assoc. Pro. T. Paypanova (IMB)
The lipid component of thylakoid membranes as a factor for photosynthetic activity under environmental stress (K-807/1998) National Science Fund, 1998-2003 Project leader: Prof. Dr. M. Velitchkova
Structural and functional role of light-harvesting complex 2 in mutants of higher plants (К-614/96) National Science Fund, 1996-2000 Project leader: Prof. Dr. E.L. Apostolova
Composition and functions of carotenoids in light harvesting complex of photosystem I of higher plants
Joint project by the program of bilateral cooperation between Bulgarian Academy of Sciences and CSIC, Spain; 2010 – 2011
Coordinator from IBPBME: Prof. Dr. M. Velitchkova
Structural consequences of the modification of lipid, carotenoid and protein composition of photosynthetic membranes
Joint project by the program of bilateral cooperation between Bulgarian Academy of Sciences and Hungarian Academy of Sciences (contract number 33); funded under the Academy’s bilateral agreements; 2010-2012
Coordinator from IBPBME: Assoc. Prof. Dr. E.L. Apostolova
Role of carotenoids for temperature stability of photosynthetic apparatus
Budgetary subsidy of Bulgarian Academy of Sciences; 2011– 2012
Project leader: Assoc. Prof. Dr. E.L. Apostolova
Effect of brassinosteroids on the photosynthetic apparatus of higher plants and its resistance to high-light stress
Budgetary subsidy of Bulgarian Academy of Sciences; 2010 – 2012
Project leader: Assoc. Prof. Dr. A.G. Dobrikova
Interactions and role of chlorophyll a in cytochrome b6f complex
Budgetary subsidy of Bulgarian Academy of Sciences; 2010 – 2013
Coordinator: Dr. R. Vladkova
Structural consequences of the modification of lipid, carotenoid and protein composition of photosynthetic membranes
Joint project by the program of bilateral cooperation between Bulgarian Academy of Sciences and Hungarian Academy of Sciences (contract number 33); funded under the Academy’s bilateral agreements; 2007-2009
Coordinator from IBPBME: Assoc. Prof. Dr. E.L. Apostolova
Spectral properties of the photosystem II reaction centre. Towards the assignment of pigment electronic absorbance bands
Joint project by the program of bilateral cooperation between Bulgarian Academy of Sciences and CSIC- Spain; 2006-2007
Coordinator from IBPBME: Prof. Dr. M. Velitchkova
Dynamic and stability of the photosynthetic apparatus
National Science Fund (Б-1512); 2005-2009
Project Leader: Assoc. Prof. Dr. E.L. Apostolova
Photosynthetic apparatus under abiotic stress. Involvement of reactive oxygen species in inactivation processes
National Science Fund (Б-1504); 2005-2009
Project Leader: Prof. Dr. M. Velitchkova
Structural Consequences of the modification of lipid, carotenoid and protein composition of photosynthetic membranes
Joint project by the program of bilateral cooperation between Bulgarian Academy of Sciences and Hungarian Academy of Sciences (contract number 29); 2004-2006
Coordinator from IBPBME: Assoc. Prof. Dr. E.L. Apostolova
Stability of the pigment-protein complex LHII from photosynthetic bacteria under extreme environmental conditions as probe by spectroscopic techniques
Joint project by the program of bilateral cooperation between Bulgarian Academy of Sciences and CSIC- Spain; 2004-2005
Coordinator from IBFBME: Prof. Dr. M. Velitchkova
Role of chlorophyll-lipid interactions for the assembly and functional stability of photosynthetic light-harvesting complexes
Budget subsidy of Bulgarian Academy of Sciences; 2004 – 2009
Project leader: Dr. R. Vladkova
Functional activity and structural stability of pigment-protein complexes of photosynthetic organisms under biotic and abiotic stress. Role of active oxygen species in inactivation processes
Budget subsidy from Bulgarian Academy of Sciences; 2004 -2005
Project leader: Prof. Dr. M. Velitchkova
Stability of pigment-protein complexes
National Science Fund (МY-К-1003/00); 2000-2004
Project Leader: Assoc. Prof. Dr. A.G. Dobrikova
Energy transfer in biological membranes (K-1301/2003)
National Science Fund; 2003-2007
Project Leader: Prof. DSc. S. Taneva
Lipid-chlorophyll interactions
Bulgarian-German project (BMBF -WTZ BGR 99 / 008), funded by the International Bureau of the Federal Ministry of Education and Research – Germany (BMBF); 2000-2002
Project leader from IBPBMI: Dr. R. Vladkova
International collaboration
Experimental Station “Aula Dei”, CSIC; Saragosa, Spain.
Institute of Plant Biology, BRC, Hungarian Academy of Sciences, Hungary.
Max-Planck-Institute for Molecular Plant Physiology, Potsdam, Germany.
Kyushu University, Fukuoka, Japan
Fakir Mohan University, Department of Biosciences and Biotechnology, Balasor, India.
Aristotle University, Thessaloniki, Greece
University of Ss. Cyrill and Methodius in Trnava, Slovakia
University of Neuchatel, Switzerland
University of Western Ontario, London, Canada
Umea Plant Sci Ctr, Umea, Swеden
Centre of Biotechnology of Borj-Cedria, Hammam-Lif, Tunis
Cairo University, Giza, Egypt
Institute of Plant Physiology, Russian Academy of Sciences, Moscow, Russia
Institute of Basic Biological Problems, Russian Academy of Sciences, Pushchino, Russia
Department of Plant Physiology, Faculty of Biology, M.V. Lomonosov Moscow State University, Moscow, Russia
National collaboration
Institute of Plant Physiology and Genetics – BAS
Sofia University “St. Kliment Ohridski”, Department of Biology and Department of Physics
University of Chemical Technology and Metallurgy
Agricultural Academy
Lecture courses
Photoprocesses in biological membranes – PhD course by Prof. Dr. E. Apostolova
Biophysics of photosynthetic membranes – PhD course by Prof. Dr. M. Velitchkova
Selected publications
2019
М. Stefanov, A.K. Biswal, M. Misra, A.N. Misra, E. L. Apostolova.. Responses of Photosynthetic Apparatus to Salt Stress: Structure, Function and Protection. Handbook of Plant and Crop Stress, 4th Edition, Taylor &francis, 2019, 233-250.
Dobrikova A.G., Apostolova E.L.. Damage and protection of the photosynthetic apparatus under cadmium stress. Chapter 11. Cadmium Toxicity and Tolerance in Plants: From Physiology to Remediation, 1st Edition, Elsevier, 2019, 275-298, ISBN:9780128148648, DOI:doi. 10.1016/B978-0-12-814864-8.00011-5, Без ISI IF и без SJR – индексирано в WoS или Scopus
Gerganova, M., Faik, A., Velitchkova, M. Acquired tolerance of the photosynthetic apparatus to photoinhibition as a result of growing Solanum lycopersicum at moderately higher temperature and light intensity. Functional Plant Biology, 46, 2019, 555-566, DOI:https://doi.org/10.1071/FP18264, IF:2.083, Q2
Popova, A.V., Dobrev, K., Velitchkova, M, Ivanov, A.G.. Differential temperature effects on dissipation of excess light energy and energy partitioning in lut2 mutant of Arabodopsis thaliana under photoinhibitory conditions.. Photosynth. Res., 139, 1-3, 2019, 367-385, ISSN:0166-8595, DOI:https://doi.org/10.1007/s11120-018-0511-2, IF:3.864, Q1
Kovacs T, Szalontai B, Kłodawska K, Vladkova R, Malec P, Gombos Z, Laczko-Dobos H. Photosystem I oligomerization affects lipid composition in Synechocystis sp. PCC 6803, BBA – Molecular and Cell Biology of Lipids, 1864, Elsevier, 2019, 1384-1395, DOI:10.1016/j.bbalip.2019.06.013, IF:5.162, Q1
Maglovski M., Gregorová Z., Rybanský L., Bardáčová M., Moravčíková J., Bujdoš M., Dobrikova A., Apostolova E., Kraic J., Blehová A., Matušíková I.. Effects of nutrition on wheat photosynthetic pigment responses to arsenic stress. Polish J. Environ. Studies, Vol. 28, 3, 2019, 1-9, ISSN:1230-1485, DOI:DOI: https://doi.org/10.15244/pjoes/89584, IF:1.12, Q3
2018
Stefanov, E. Yotsova, E.L. Apostolova. Salt- and light-induced changes in spectral characteristics of Paulownia. Comp. rend. Acad. bulg. Sci., 71, 2018, 1062-1069, ISSN:1310–1331, IF:0.251, Q2
Faik, A, Stanoeva, D., Velitchkova, M. High light enhanced the inhibitory effect of suboptimal temperatures on oxygen evolving reactions in Arabidopsis thaliana. C. R. Bulg Acad. Sci., 71, 2, Marin Drinov, 2018, 211-219, ISSN:1310–1331, DOI. SJR:0.207, IF:0.251, Q2
Picorel, R., Alfonso, M., Velitchkova, M.. Editorial: Molecular Basis of the Response of Photosynthetic Apparatus to Light and Temperature Stress. Front. Plant Sci., 8, 2017, 288, ISSN:ISSN=1664-462X, DOI:DOI 10.3389/fpls.2017.00288, IF:4.495, Q1
Stefanov M., Yotsova E., Ivanova K., Markovska Y., Apostolova E.. Effect of high light intensity on the photosynthetic apparatus of two hybrid lines of Paulownia grown on soil with different salinity. Photosynthetica, 56, 2018, 832-840, ISSN:0300-3604, DOI:doi.org/10.1007/s11099-017-0735-y, IF:1.507, Q2
Yotsova E., Dobrikova A., Stefanov M., Apostolova E.. Impact of salicylic acid on the grown and activity of photosynthetic apparatus in rice under non-stress conditions. Comp. Rend. Acad. Bulg. Sci., 71, 3, 2018, 368-375, ISSN:1310–1331, DOI:10.7546/CRABS.2018.03.09, IF:0.27, Q2
Yotsova E.K., Dobrikova A.G., Stefanov M.A., Kouzmanova M., Apostolova E.L.. Improvement of the rice photosynthetic apparatus defence under cadmium stress modulated by salicylic acid supply to roots. Theor. Exp. Plant Physiology, 30, 1, Springer, 2018, 57-70, ISSN:2197-0025, DOI:10.1007/s40626-018-0102-9,IF:0.885, Q2
Chaudhury, A., Ward, Ch., Talasaz, A., Ivanov, A. G., Brophy, M., Grodzinski, B., Huner, N.P.A., Patel, V.I., Barron, J.L.. Machine Vision System for 3D Plant Phenotyping. IEEE/ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS, VOL. XX,, NO. X, 2018, 1-13, ISSN:1545-5963, DOI:DOI 10.1109/TCBB.2018.2824814, IEEE/ACM,. SJR:0.649, IF:1.609, Q1
Elkhouni A., Rabhi M., Ivanov A.G., Krol M., Zorrig W., Smaoui A., Abdelly C., Huner N.P.A.. Structural and functional integrity of Sulla carnosa photosynthetic apparatus under iron deficiency conditions. Plant Biology, 20, 3, 2018, 415-425, DOI:doi: 10.1111/plb.12684, IF:2.216, Q2
Jusovich, M, Velitchkova, M, Misheva, S, Börner, A, Apostolova, E, Dobrikova, A. Photosynthetic responses of a wheat mutant (Rht-B1c) with altered DELLA proteins to salt stress. Journal of Plant Growth Regulation, 37, 2, Springer, 2018, 645-656, ISSN:0721-7595, DOI:doi.org/10.1007/s00344-017-9764-9, IF:2.04, Q1
Lahmar, I, Radeva, G, Marinkova. D, Velitchkova, M, Belghith,, Ben Abdallah, F, Yotova, L, Belghith, K. Valorization of a plant β-amylase: Immobilization and dataset on the kinetic process. Data in Brief, 16, 2018, 386-391, ISSN:ISSN: 2352-3409, DOI:doi.org/10.1016/j.dib.2017.11.071, SJR:0.216, SJR
Kurepin, L.V., Stangl, Z.R., Ivanov, A.G., Bui, V., Mema, M., Huner, N.P.A., Öquist. G., Way, D., Hurry, V.. Contrasting acclimation abilities of two dominant boreal conifers to elevated CO2 and temperature. Plant Cell Environ, 41, 2018, 1331-1345, ISSN:0140-7791, DOI:DOI: 10.1111/pce.13158, IF:5.415, Q1
Lahmar, I., Radeva, G., Marinkova, D., Velitchkova, M., Belghith, Hafedh, Ben abdallah, Ferjani, Yotova, Lyubov, Belghith, Karima. Immobilization and topochemical mechanism of a new β-amylase extracted from Pergularia tomentosa. Process Biochemistry, 64, Elsevier, 2018, 143-151, ISSN:1359-5113, DOI:doi.org/10.1016/j.procbio.2017.09.007, IF:2.497, Q2
2017
Dobrikova, A.G., Yotsova, E. K., Börner, A., Landjeva, S.P., Apostolova, E.L.. The wheat mutant DELLA-encoding gene (Rht-B1c) affects plant photosynthetic responses to cadmium stress. Plant Physiology and Biochemistry, 114, Elsevier, 2017, 10-18, ISSN:0981-9428, DOI:doi: 10.1016/j.plaphy.2017.02.015, IF:2.718, Q1,
Faik, A., Vasilev, D., Stanoeva, D., Velitchkova, M.. Suboptimal growth temperature and light intensity effects on Photosystem II activity and oxygen evolution of tomato (Solanum lycopersicum). Comptes rendus de l’Académie bulgare des Sciences, 70, 9, “Prof. Marin Drinov” Publishing House of BAS, 2017, 1247-1254, ISSN:ISSN 1310–1331 (Print) ISSN 2367–5535 (Online), IF:0.251, Q2
Ivanov, AG, Velitchkova, M, Allakhverdiev, Suleyman I., Huner, NPA. Heat stress-induced effects of photosystem I: an overview of structural and functional responses. Photosynth. Res., 133, Springer, 2017, 17-30, ISSN:0166-8595, DOI:DOI 10.1007/s11120-017-0383-x, IF:3.864, Q1,
Popova, A.V.. Spectral characteristics and solubility of β-carotene and zeaxanthin in different solvents. Compt. Rend. Bulg. Acad. Sci., 70, 1, Prof. “Marin Drinov”, 2017, 53-60, ISSN:1310–1331, IF:0.251, Q2
Gerganova, M., Stanoeva, D., Popova, A.V., Velitchkova, M. Alterations in pigment content and photosynthetic performance of Arabidopsis thaliana plants under combined action of low temperature and high light. Comptes rendus de l’Académie bulgare des Sciences, 70, 9, 2017, 1255-1261, “Prof. Marin Drinov” Publishing House of BAS, ISSN:2367–5535, IF:0.206, Q2
Yotsova, E.K., Stefanov, M.A., Dobrikova, A.G., Apostolova, E.L.. Different sensitivities of photosystem II in green algae and cyanobacteria to phenylurea and phenol-type herbicides: effect on electron donor side, Zeitschrift für Naturforschung C, 72, 7-8, 2017, 315-324, ISSN:1865-7125, DOI:doi: 10.1515/znc-2016-0089, IF:0.882, Q4
Chaudhury A., Ward C., Talasaz A., Ivanov A.G., Brophy M., Grodzinski B., Patel R.V., Huner N.P.A., Barron J.L.. Machine vision system for 3D plant phenotyping. arXiv, 2017, ISSN:2331-8422, IF:0.698, Q4
Misra, A.N., Singh, R., Misra, M., Vladkova, R., Dobrikova, A.G., Apostolova, E.L.. Nitric Oxide mediated effects on chloroplasts. Photosynthesis: Structures, Mechanisms and Applications. (H.J.M. Hou, M.M. Najafpour, G.F. Moore, S.I. Allakhverdiev, eds.), Chapter 14, Springer, Cham, 2017, 305-320, ISBN:978-3-319-48871-4, https://link.springer.com/chapter/10.1007/978-3-319-48873-8_14, 16, Без ISI IF и без SJR – индексирано в WoS или Scopus
Noridomi, M., Nakamura, S., Tsuyama, M., Futamura, N., Vladkova, R.. Opposite domination of cyclic and pseudocyclic electron flows in short-illuminated dark-adapted leaves of angiosperms and gymnosperms Q1(ISI). Photosynthesis Research, 134, 2, Springer, 2017, 149-164, ISSN:0166-8595, DOI:10.1007/s11120-017-0419-2, IF:3.091, Q1
2016
Faik, A., Popova, A.V., Velitchkova, M.. Effects of long-term action of high temperature and high light on the activity and energy interaction of both photosystems in tomato plants. Photosynthetica, 54, 4, 2016, 611-619, DOI:DOI: 10.1007/s11099-016-0644-5, IF:1.558, Q1
Dobrev, K., Stanoeva, D., Velitchkova, M., Popova, A.V. The lack of lutein accelerates the extent of light-induced bleaching of photosynthetic pigments in thylakoid membranes of Arabidopsis thaliana. Photochemistry and Photobiology, 92, 2016, 436-445, ISSN:ISSN: 1751-1097, DOI:DOI: 10.1111/php.12576, IF:2.266, Q2
Apostolova, E.L., Dobrikova, A.G.. Role of the LHCII organization for the sensitivity of the photosynthetic apparatus to temperature and high light intensity. Handbook of Photosynthesis (ed. M. Pessarakli), Chapter 16, Third edition, Taylor and Francis Group, CRC Press, 2016, 301-314, ISBN:9781482230734, Без ISI IF и без SJR – индексирано в WoS или Scopus
Gerganova, M., Popova, A.V., Stanoeva, D., Velitchkova, M.. Tomato plants acclimate better to elevated temperature and high light than to treatment with each factor separately. Plant Physiology and Biochemistry, 104, 2016, 234-241, ISSN:0981-9428, DOI:doi.org/10.1016/j.plaphy.2016.03.030, IF:2.928, Q1,
Gerganova, M., Stanoeva, D., Popova, A.V., Velitchkova, M.. Pigment content and oxygen evolution of tomato plants as affected by long term treatment at suboptimal temperature. Comptes rendus de l’Académie bulgare des Sciences, 69, 11, 2016, 1429-1436, ISSN:2367–5535, IF:0.204, Q2
M. Stefanov, E. Yotsova, K. Ivanova, Y. Markovska, E. Apostolova. Assesment the impact of salinity on photosynthetic apparatus of Paulownia elongata x kawakami. Comp. rend. Acad. bulg. Sci., 69, 2016, 1325-1332, IF:0.233, Q2
Popova A.V., Hincha D.K.. Effects of flavonol glycosides on liposome stability during freezing and drying. Biochim. Biophys. Acta, Biomembranes, 1858, 12, 2016, 3050-3060, IF:3.687, Q1
Stefanov, M., Yotsova, E., Rashkov, G., Ivanova, K., Markovska, Y., Apostolova, E.L.. Effects of salinity on the photosynthetic apparatus of two Paulownia lines. Plant Physiol. Biochem., 101, 2016, ISSN:ISSN: 0981-9428, IF:2.928, Q1
Vladkova, R. Chlorophyll a is the crucial redox sensor and transmembrane signal transmitter in the cytochrome b6f complex. Components and mechanisms of state transitions from the hydrophobic mismatch viewpoint. Journal of Biomolecular Structure and Dynamics, 34, 4, Taylor & Francis, 2016, 824-854, ISSN:0739-1102, DOI:10.1080/07391102.2015.1056551, IF:3.123, Q1
Bode, R., Ivanov, A.G., Hüner, N.P.A. Global transcriptome analyses provide evidence that chloroplast redox state contributes to intracellular as well as long-distance signalling in response to stress and acclimation in arabidopsis. Photosynthesis Research, 128, 3, 2016, 287-312, ISSN:0166-8595, DOI:10.1007/s11120-016-0245-y, IIF:3.091, Q1,
Flores-Bavestrello, A., Krol, M., Ivanov, A.G., Hüner, N.P.A, García-Plazaola, J. I., Corcuera, L. J., Bravo, L. A. Two hymenophyllaceae species from contrasting natural environments exhibit a homoiochlorophyllous strategy in response to desiccation stress. Journal of Plant Physiology, 191, 2016, 82-94, ISSN:0176-1617, DOI:10.1016/j.jplph.2015.12.003, IF:3.121, Q1
Hüner, N.P.A., Dahal, K., Bode, R., Kurepin, L.V., Ivanov, A.G.. Photosynthetic acclimation, vernalization, crop productivity and ‘the grand design of photosynthesis’. Journal of Plant Physiology, 203, 2016, 29-43, ISSN:0176-1617, DOI:10.1016/j.jplph.2016.04.006, IF:3.121, Q1
McCarthy, A., Chung, M., Ivanov, A.G., Krol, M., Inman, M., Maxwell, D. P., Hüner, N.P.A. An established arabidopsis thaliana var. landsberg erecta cell suspension culture accumulates chlorophyll and exhibits a stay-green phenotype in response to high external sucrose concentrations. J. Plant Physiol, 199, 2016, 40-51, ISSN:0176-1617, DOI:10.1016/j.jplph.2016.05.008, IF:3.121, Q1
2015
Apostolova E.L., Rashkov G., Dankov K., Puneva I., 2015, Influence of the sanosil-induced oxidative stress on the photosynthetic apparatus of different strains of green algae and cyanobacteria, Ind. J. Plant Physiol., 20, 333-338
Dankov K., Rashkov G., Misra A.N., Apostolova E.L., 2015, Temperature sensitivity of photosystem II in isolated thylakoid membranes from fluridone-treated pea leaves, Turk. J. Bot., 39, 420-428.
Dobrikova A.G., Apostolova E.L., 2015, Damage and protection of the photosynthetic apparatus from UV-B radiation. II. Effect of quercetin at different pH. J. Plant Physiol., 184, 98-105
Dobrev K., Stanoeva D., Velitchkova M., Popova A.V., 2015, Alterrations in primary photosynthetic reactions of Arabidopsisthaliana, wt and lut2, under photoinhibition invivo, Compt. Rend. Bulg. Acad. Sci., 68 (5) 601-608.
Popova A.V., Rausch S., Hundertmark M., Gibon Y., Hincha D.K., 2015, The intrinsically disordered protein LEA7 from Arabidopsis thaliana protects the isolated enzyme lactate dehydrogenase and enzymes in a soluble leaf proteome during freezing and drying, Biochim. Biophys. Acta–ProteinsandProteomics, 1854 (10) 1517-1525.
Angelov B., Angelova A., Drechsler M., Garamus V. M., Mutafchieva R., Lesieur S., 2015, Identification of large channels in cationic PEGylated cubosome nanoparticles by synchrotron radiation SAXS and Cryo-TEM imaging, SoftMatter 11, 3686-3692
Angelova A., Angelov B., Mutafchieva R. , Lesieur S. , 2015, Biocompatible Mesoporous and Soft Nanoarchitectures, J. Inorg. Organomet. Polym. Mater, 25 (2), 214-232
Angelova A., Angelov B., Lesieur S., Mutafchieva R., Ollivon M., Bourgaux C., Willumeit R., Couvreur P., 2008, Dynamic control of nanofluidic channels in protein drug delivery vehicles, J. DrugDeliv. Sci. Technol., 18(1), 41-45
Mihailova G., Velitchkova M., Doltchinkova V., Lazarova D., Georgieva K., 2015, Photosynthetic characteristics of the resurrection plant Haberlea Rhodopensis from two habitats, Gen. Plant Physiol. 5 (1) 74–85.
2014
Apostolova E.L., Pouneva I., Rashkov G., Dankov K., Grigorova I., Misra A.N., 2014, Effect of UV-B radiation on Photosystem II functions in Antarctic and mesophilic strains of a green alga Chlorellavulgaris and a cyanobacterium Synechocystissalina, Ind. J. PlantPhysiol., 19, 111-118.
Dang N. X., Popova A.V., Hundertmark M., Hincha D.K., 2014, Functional characterization of selected LEA proteins from Arabidopsis thaliana in yeast and in vitro, Planta, 240 (2) 325-336.
Dobrikova A.G., Vladkova R.S., Rashkov G.D., Todinova S.J., Krumova S.B., Apostolova E.L., 2014, Effects of exogenous 24-epibrassinolide on the photosynthetic membranes under non-stress conditions, PlantPhysiol. Biochem., 80, 75-82.
Lazarova D., Stanoeva D., Popova A., Vasilev D., Velitchkova M., 2014, UV-B – induced alteration of oxygen evolving reactions in pea thylakoid membranes as affected by scavengers of reactive oxygen species. Biol. Plant. 58 (2) 319-327.
Misra A.N., Vladkova R., Singh R., Misra M., Dobrikova A.G., Apostolova E.L., 2014, Action and target sites of nitric oxide in chloroplasts, NitricOxide, 39, 35-45
Sárvári É., G. Mihailova, Á. Solti, Á. Keresztes, M. Velitchkova, K. Georgieva, 2014, Comparison of thylakoid structure and organization in sun and shade Haberlearhodopensis populations under desiccation and rehydration, J. PlantPhysiol. 151, 1591-1600.
Apostolova E. L., Misra A.N., 2014, Alteration in Structural Organization Affect the Functional Ability of Photosynthetic Apparatus, In: Handbook of Plant and Group Physiology, Third Edition (ed. Pessarakli) CRC Press, Taylor & Francis Group, pp.103-120.
Ivanov A., Velitchkova M., 2014, Mechanisms of stimulation of photosystem I activity in chloroplast membranes under heat stress. Correlation between P700 photooxidation and thermostability of thylakoid membrane organization In: Photosynthesis: Open Questions and What We Know Today, (Allakhverdiev S. I., Rubin A. B., Shuvalov V.A. eds.), Moscow–Izhevsk: Izhevsk Institute of Computer Science, Vol. II, pp. 377-396.
2013
Apostolova E.L., 2013, Effect of high-light on photosynthetic apparatus with different content of anionic lipids and organization of light-harvesting complex of photosystem II, Acta Physiol. Plant., 35, 975-978
Dobrikova A.G., Domonkos I., Sözer Ö., Laczkó-Dobos H., Kis M., Párduc Á., Gombos Z.,. Apostolova E.L., 2013, Effect of partial or complete elimination of light-harvesting complexes on the surface electric properties and the functions of cyanobacterial photosynthetic membranes, Physiol. Plantarum., 147, 248-260
Dobrikova A.G., Krasteva V., Apostolova E.L., 2013, Damage and protection of the photosynthetic apparatus from UV-B radiation. I. Effect of ascorbate, J. Plant Physiology, 170, 251-257
Velitchkova M., Lazarova D., Mihailova G., Stanoeva D., Dolchinkova V., Georgieva K., 2013, Characterization of energy transfer processes and flash oxygen yields of thylakoid membranes isolated from resurrection plant Haberlearhodopensis subjected to different extent of desiccation, in: PhotosynthesisResearchforFood, FuelandFuture (Eds. Tingyun Kuang, Congming Lu, Lixin Zhang), pp. 531-534
Velitchkova M., Stanoeva D., Popova A., 2013, Sensitivity of two ecotypes of Arabidopsis thaliana (Cvi and Te) towards UV-B irradiation, Compt. rend. Acad. Bulg. Sci., 66, 839-846
Popova A.V., Andreeva A., 2013, Carotenoid-lipid interactions, Advances in Planar Lipid Bilayers and Liposomes, 17, 215-236
Popova A.V., Hincha D.K., 2013, Interactions of the amphiphiles arbutin and tryptophan with phosphatidylcholine and phosphatidylethanolamine bilayers in the dry state, BMC Biophysics, 6:9
2012
Angelov B., Angelova A., Garamus V.M., Drechsler M., Willumeit R., Mutafchieva R., Stepánek P., Lesieur S., 2012, Earliest stage of the tetrahedral nanochannel formation in cubosome particles from unilamellar nanovesicles, Langmuir, 28, 16647-16655
Hundertmark M., Popova A.V., Rausch S., Seckler R., Hincha D.K., 2012, Influence of drying on the secondary structure of intrinsically disordered and globular proteins, Biochem. Biophys. Res. Comm., 417, 122-128
Rashkov G.R., Dobrikova A.G., Pouneva I.D., Misra A.N., Apostolova E.L., 2012, Sensitivity of Chlorellavulgaris to herbicides. Possibility of using it as a biological receptor in biosensors, Sensors & Actuators: B. Chemical, 161, 151-155
2011
Andreeva A., Apostolova I., Velitchkova M., 2011, Temperature dependence of resonance Raman spectra of carotenoids, Spectrochim. Acta A: Mol. Biomol. Spectroscopy, 78, 1261-1265
Angelova A., Angelov B., Mutafchieva R., Couvreur P., 2011, Self-assembled multicompartment liquid crystalline lipid carriers for protein, peptide and nucleic acid drug delivery, Acc. Chem. Res., 44, 147-156
Angelov B., Angelova A., Mutafchieva R., Lesieur S., Vainio U., Haramus V.M., Jensen G., Pedersen J.S., 2011, SAXS investigation of a cubic to a sponge (L3) phase transition in self-assembly lipid nanocarrier, Phys. Chem. Chem. Phys., 13, 3073-3081
Apostolova E.L., Dobrikova A.G., Rashkov G.D., Dankov K.G., Vladkova R.S., Misra A.N., 2011, Prolonged sensitivity of immobilized thylakoid membranes in cross-linking matrix to atrazin, Sen. ActuatorsB: Chem., 156, 140-146
Dankov K., Dobrikova A.G., Ughy B., Bogos B., Gombos Z., Apostolova E. L., 2011, LHCII organization and thylakoid lipids affect the sensitivity of the photosynthetic apparatus to high-light treatment, Plant Physiol. Biochem. 49, 629-635
Laczkó-Dobos H., Todinova S.J., Sözer Ö., Komenda J., Kis M., Sallai A., Dobrikova A.G., Ughy B., Debreczeny M., Gombos Z., Apostolova E.L., Domonkos I., 2011, Identification of thylakoid membrane thermal transitions in Synechocystis sp. PCC6803 photosynthetic mutants, Photosynth. Research. 107, 237-246
Zlatanov I, Popova A, 2011, Penetration of lysozyme and cytochrom c in lipid bilayers: Fluorescent study, Journal in Membrane Biology, 242 (2) 95-103
Popova A.V., Hundertmark M., Seckler R., Hincha D.K., 2011, Structural transitions in the intrinsically disordered plant dehydration stress protein LEA7 upon drying are modulated by the presence of membranes, Biochim. Biophys. Acta-Biomembranes, 1808, 1879-1887
Popova A.V., Hincha D.K., 2011, Thermotropic phase behaviour of the non-bilayer lipids phosphatydilethanolamine and monogalactosyldiacylglycerol in the dry state, BMCBiophysics, 4:11
Vladkova R., Dobrikova A.G., Singh R., Misra A.N., Apostolova E., 2011, Photoelectron transport ability of chloroplast thylakoid membranes treated with NO donor SNP: Changes in flash oxygen evolution and chlorophyll fluorescence, NitricOxide, 24, 84-90
Popova A., Andreeva A., 2011, β-carotene-lipid interactions in liposomes with different lipid composition, In: Advances in Planar Lipid Bilayers and Liposomes, vol. 14, 293-307.
2010
Krumova S.B., Todinova S.J., Dobrikova A.G., Taneva S.G., 2010, Differential scanning calorimetry of photosynthetic membranes: Resolving contributions of the major photosynthetic complexes to the sequential thermal transitions, Review, Trends in Photochem. Photobiol., 12, 37-51.
Apostolova E.L., Dobrikova A.G. (2010) Effect of high temperature and UV-A radiation on the photosystem II, In: Handbook of Plant and Crop Stress, 3rd edition, ed. M. Pessarakli, Taylor and Francis Group. pp. 577-591
Andreeva A, Popova A, 2010, Integration of β-carotene molecules in small liposomes, Journal of Physics: Conference Series 253, No 012066
Fedina I., Hidema J., Velitchkova M., Georgieva K., Nedeva D., 2010, UV-B induced stress responses in three rice cultivars, Biol. Plant. 54 (3) 571-574
Thalhammer A., Hundertmark M., Popova A.V., Secler R., Hincha D.K., 2010, Interaction of two intrinsically disordered plant stress proteins (COR15A and COR15B) with lipid membranes in the dry state, Biochim. Biophys. Acta–Biomembranes, 1798, 1812-1820
Vladkova R, Koynova R, Teuchner T., Tenchov B., 2010, Bilayer structural destabilization by low amounts of chlorophyll a, Biochim. Biophys. Acta – Biomembranes, 1798, 1586-1592.
2009
Dankov K., Busheva M., Stefanov D., Apostolova E.L., 2009, Relationship between the degree of carotenoid depletion and function of photosynthetic apparatus, J. Photochem. Photobiol. B. Biology, 96, 49-56.
Lazarova D, Popova A., Stanoeva D., Velitchkova M, 2009, Involvement of reactive oxygen radicals in photoinhibition of primary photosynthetic reactions – effect of temperature and oxygen radical scavengers, Biotechnology and Biotechnology Equipment, 23, special Edition/on line, 511-515.
Doncheva Sn., Poschenrieder C., Stoyanova Zl., Georgieva K., Velichkova M., Barceló J., 2009, Silicon amelioration of manganese toxicity in Mn-sensitive and Mn-tolerant maize varieties, Environm. Exp. Botany, 65, 189-197
Fedina I., Nedeva D., Georgieva K., Velitchkova M., 2009, Methyl jasmonate counteract UV-B stress in barley seedlings, J. Agron. Crop Sci., 195, 204-212
Fedina I., Velitchkova M., 2009, Physiological Responses of Higher Plants to UV-B Radiation, In: Climate Changes and Crops, ed. S.N.Singh, Springer, pp. 283-306
Fedina I, Velitchkova M., Georgieva K., Nedeva D., Çakırlar H., 2009, UV-B response of greening barley seedlings, Acta Biol. Hung. 60, 195-210
Velitchkova M., Abarova S., Lazarova D., Stoichkova K., Stanoeva D., Andreeva A., 2009, Protective effect of histidine against pigment photobleaching in photosystem I particles J. Optoelectron. Adv. Mat., 11, 1230-1233
2008
Ivanova P.I., Dobrikova A.G., Taneva S.G, Apostolova E.L., 2008, Sensitivity of the photosynthetic apparatus to UV-A radiation: a role of light-harvesting complex II – photosystem II supercomplex organization, Radiat. Environ. Biophys., 47, 169-177.
Apostolova E.L., Domonkos I., Dobrikova A.G. , Sallai A., Bogos B., Wada H., Gombos Z., Taneva S.G., 2008, Effect of phosphatidylglycerol depletion on the surface electric properties and fluorescence emission of thylakoid membranes, J.Photochem. Photobiol. B: Biology, 91, 51-57.
Çakırlar H., Çiçek N., Fedina I., Georgieva K., Doğru A., Velitchkova M., 2008, NaCl induced cross-acclimation to UV-B radiation in four barley (HordeumvulgareL.) cultivars, ActaPhysiol. Plant. 30, 561-567
2007
Dobrikova A.G., Dimitrov M.I., Taneva S.G., Petkanchin I.B., 2007, Protein-coated b-Ferric Hydrous Oxide Particles. An Electrokinetic and Electrooptic Study”, Colloids and Surfaces B: Biointerface, 56, 114-120.
Andreeva A., Abarova S., Stoichkova K., Picorel R., Velitchkova M. 2007, Selective Photobleaching of chlorophylls and carotenoids in photosystem I particles under high-light treatment, Photochem. Photobiol., 83, 1301-1307
Fedina I., Velitchkova M., Georgieva K., Demirevska K., Simova L., 2007, UV-B response of green and etiolated barley seedlings, Biol. Plant., 51, 699-706
Komayama, K., Khatoon, M., Takenaka, D., Horie, J., Yamashita, A., Yoshioka, M., Nakayama, Y., Yoshida, M., Ohira, S., Morita, N., Velitchkova, M., Enami, I., Yamamoto, Y., 2007, Quality control of photosystem II: cleavage and aggregation of heat-damaged D1 protein in spinach thylakoids, Biochim. Biophys. Acta –Bioenergetics, 1767, 838-846.
Pouchkina-Stantcheva N.N., McGee B.M., Boschetti C., Tolleter D., Chakrabortee S., Popova A.V., Macherel D., Hincha D.K., Tunnacliffe A., 2007, Functional divergence of former alleles encoding LEA proteins in a desiccation-tolerant, ancient asexual invertebrate, Science, 318, 268-271
Popova A.V., Hincha D.K., 2007, Effects of cholesterol on dry bilayers: interactions between phosphatidylcholine unsaturation, and glycolipid or free sugar, Biophys. J., 93, 1204-1214
Popova A.V., Veltchkova M., Zanev Y., 2007, Effect of membrane fluidity on photosynthetic oxygen production reactions, Z. Naturforschung 62c, 253-260.
2006
Apostolova E.L., Dobrikova A.G., Ivanova P.I, Petkanchin I.B., Taneva S.G., 2006, Relationship between the organization of the supercomplex of PSII and the functions of the photosynthetic apparatus, J. Photochem. Photobiol. B: Biology, 83, 114-122
Hincha D.K., Popova A.V., Cacela C., 2006, Effects of sugars on the stability and structure of lipid membranes during drying, In: Advances in Planar Lipid Bilayers and Liposomes, ed. A.L. Leitmanova Liu, vol. 3, Elsevier, pp. 189-217
Fedina I., Georgieva K., Velitchkova M., Grigorova I., 2006, Effect of pretreatment of barley seedlings with different salts on the level of UV-B induced and UV-B absorbing compounds, Environm. Exp. Bot., 56, 225-230.
Stoitchkova K., Busheva M., Apostolova E., Andreeva A., 2006, Changes in the еnergy distribution in mutant thylakoid membranes of pea with modified pigment content II. Changes due to magnesium ions concentration, J. Photochem. Photobiol. B: Biology, 83, 11-20.
Resources
The video has been created in the frames of the project “Prenylquinones and carotenoids – potential mediators of tolerance of plants to combined light and temperature stress” funded under the BSRP-Bulgarian-Swiss Research Programme, with project leader Prof. Maya Velichkova, DSc.
For download (in Bulgarian, with English subtitles):
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