The photosynthetic apparatus of the moss Hylocomium lucidum is resistant to low extreme temperatures

A. V. Chasov; Часов А. В.; F. V. Minibaeva; Минибаева Ф. В.

doi:10.31857/S0367059723060033

The photosynthetic apparatus of the moss Hylocomium lucidum is resistant to low extreme temperatures

Authors: Chasov A.V.¹, Minibaeva F.V.¹
Affiliations:
1. Kazan Institute of Biochemistry and Biophysics is a separate structural unit of the Federal Research Center “Kazan Scientific Center RAS”
Issue: No 6 (2023)
Pages: 435-445
Section: Articles
URL: https://rjmseer.com/0367-0597/article/view/673033
DOI: https://doi.org/10.31857/S0367059723060033
EDN: https://elibrary.ru/BEOGAR
ID: 673033

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Abstract

The influence of positive and negative temperatures, as well as dehydration/rehydration on the maximum photochemical efficiency, the rate of electron transfer in photosystem II and non-photochemical quenching of the moss Hylocomium splendens, widespread in the boreal forests of the Northern Hemisphere, is shown. It was found that this moss is resistant to low negative (–20 and –80°C) temperatures and significant water losses. On the contrary, in the hydrated state it is unstable to prolonged exposure to positive temperatures (40°C). High resistance to low temperatures and dehydration allowed H. splendens to successfully adapt to growing in northern latitudes and occupy a wide range.

Keywords

Hylocomium splendens, photosynthesis, temperature stress, dehydration, rehydration

About the authors

A. V. Chasov

Kazan Institute of Biochemistry and Biophysics is a separate structural unit of the Federal Research Center “Kazan Scientific Center RAS”

Email: chasov@kibb.knc.ru
Russia, Kazan

F. V. Minibaeva

Kazan Institute of Biochemistry and Biophysics is a separate structural unit of the Federal Research Center “Kazan Scientific Center RAS”

Author for correspondence.
Email: chasov@kibb.knc.ru
Russia, Kazan

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