Long-term acclimation of barley photosynthetic apparatus to narrow-band red and blue lightстатья

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Дата последнего поиска статьи во внешних источниках: 28 июня 2018 г.

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[1] Long-term acclimation of barley photosynthetic apparatus to narrow-band red and blue light / G. V. Kochetova, O. B. Belyaeva, D. S. Gorshkova et al. // Photosynthetica. — 2018. — Vol. 56, no. 3. — P. 851–860. Chloroplasts of barley plants grown under red light (RL, 660 nm) dramatically differed from the chloroplasts of plants raised under blue light (BL, 450 nm) or control plants (white light). The chloroplasts under RL had an extensive membrane system with high stacking degree and disordered irregular shaped stacks (shaggy-formed grana). After 5 h in darkness, dynamic rearrangements of chloroplast architecture in RL- and especially BL-grown plants were restricted compared with control plants. The light spectral quality affected the content and proportions of photosynthetic pigments. The leaves of RL-grown plants had the increased ratio of low-temperature fluorescence bands, F741/F683, corresponding to emission of PSI and PSII, respectively. This increase can be related to specific architecture of chloroplasts in RL-treated plants, providing close spacing between the two photosystems, which enhances energy transfer from PSII to PSI and facilitates the movement of LHCII toward PSI. [Full-text view-only version of the paper: https://rdcu.be/OXP6]. [ DOI ]

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