Authors
Haim Treves, Hagai Raanan, Isaac Kedem, Omer Murik, Nir Keren, Hagit Zer, Simon M Berkowicz, Mario Giordano, Alessandra Norici, Yoram Shotland, Itzhak Ohad, Aaron Kaplan
Publication date
2016/6
Journal
New Phytologist
Volume
210
Issue
4
Pages
1229-1243
Description
- Excess illumination damages the photosynthetic apparatus with severe implications with regard to plant productivity. Unlike model organisms, the growth of Chlorella ohadii, isolated from desert soil crust, remains unchanged and photosynthetic O2 evolution increases, even when exposed to irradiation twice that of maximal sunlight.
- Spectroscopic, biochemical and molecular approaches were applied to uncover the mechanisms involved.
- D1 protein in photosystem II (PSII) is barely degraded, even when exposed to antibiotics that prevent its replenishment. Measurements of various PSII parameters indicate that this complex functions differently from that in model organisms and suggest that C. ohadii activates a nonradiative electron recombination route which minimizes singlet oxygen formation and the resulting photoinhibition. The light‐harvesting antenna is very small and carotene composition is hardly …
Scholar articles
H Treves, H Raanan, I Kedem, O Murik, N Keren, H Zer… - New Phytologist, 2016