How can conifers stay green during the winter?

How can conifers keep their needles green over the harsh boreal winter in the Northern hemisphere when most trees shed their leaves? Science has not provided a good answer to this question but now an international team of scientists, including researchers from Umeå University, Umeå (Sweden), Vrije Universiteit Amsterdam, Amsterdam, (The Netherlands) and the Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Sofia (Bulgaria) has deciphered that a short-cut in the photosynthetic machinery allows the needles of pine trees to stay green. This study was published on 15.12.2020 in the journal Nature Communications:

Bag P., V. Chukhutsina, Z. Zhang, S. Paul, A.G. Ivanov, T. Shutova, R. Croce, A.R. Holzwarth, S. Jansson (2020) Direct energy transfer from photosystem II to photosystem I confers winter sustainability in Scots pine. Nature Communications, DOI 10.1038/s41467-020-20137-9.

For more information, please contact:
Professor Alexander G. Ivanov
Institute of Biophysics and Biomedical Engineering
Bulgarian Academy of Sciences
Acad. G Bonchev Str., bl. 21, Sofia 1113 Bulgaria
E-mail: aivanov@bio21.bas.bg
aivanov@uwo.ca

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