Results 121 to 130 of about 11,814 (233)

No evidence for photoinhibition of photosynthesis in alpine Caltha leptosepala DC

, 2020
Alpine plants experience high levels of insolation, as well as cold nighttime temperatures throughout the summer growth period. These two stress factors in combination are now recognized as potentially important limitations to photosynthetic carbon gain.
Sánchez Andrade, Adriana, Smith, William K.   +1 more
core   +1 more source

Dysfunction of Chloroplast Protease Activity Mitigates pgr5 Phenotype in the Green Algae Chlamydomonas reinhardtii

Plants
Researchers have described protection mechanisms against the photoinhibition of photosystems under strong-light stress. Cyclic Electron Flow (CEF) mitigates electron acceptor-side limitation, and thus contributes to Photosystem I (PSI) protection ...
Shin-Ichiro Ozawa, Guoxian Zhang, Wataru Sakamoto   +2 more
doaj   +1 more source

Cytokinin downregulates Photosystem II photochemistry during prolonged darkness in a phytochrome B‐dependent manner

New Phytologist, Volume 250, Issue 6, Page 3846-3866, June 2026.
Cytokinin–phyB signaling modulates PSII photochemistry during prolonged darkness. Summary Cytokinins (CKs) delay dark‐induced senescence, but how they tune photosynthetic function in darkness remains unclear. We investigated the effects of classical aromatic CK benzylaminopurine and CK‐derived compound 1‐(2‐methoxyethyl)‐3‐(1,2,3‐thiadiazol‐5‐yl)urea ...
Veronika Kábrtová, Zuzana Kučerová, Ivo Chamrád, René Lenobel, Pavel Roudnický, Jan Skalák, Martin Hudeček, Filip Zavadil Kokáš, Marek Rác, Tereza Vánská, Jaroslav Nisler, Jan Hejátko, Miroslav Strnad, Martina Špundová, Ondřej Plíhal   +14 more
wiley   +1 more source

Evidence for the role of the oxygen-evolving manganese complex in photoinhibition of Photosystem II

, 2005
Photoinhibition of PSII occurs at the same quantum efficiency from very low to very high light, which raises a question about how important is the rate of photosynthetic electron transfer in photoinhibition.
Hakala, Marja, Tyystjärvi, Esa, Tyystjärvi, Taina, Keränen, Mika, Tuominen, Ilona   +4 more
core   +1 more source

Characteristic changes of function and structure of Photosystem II during strong-light photoinhibition under aerobic conditions

, 1995
The effects of strong-light photoinhibition under aerobic condition on the function and structure of Photosystem (PS) II were studied by measuring flash-induced changes of chlorophyll fluorescence yield, thermoluminescence glow curves, Fourier transform ...
Ono, Taka-aki, Nakajima, Yoshihiro, Noguchi, Takumi   +2 more
core   +1 more source

Photoinhibition and Photoprotection under Environmental Stresses

Abiotic and Biotic Stress Journal, 2015
Plants are often exposed in their habitat to multiple abiotic and biotic stresses (e.g. high light intensity, low or high temperatures, water shortage, salinity, diseases, etc.) that hamper growth and productivity; however plants are able, to some extent, to cope with limiting environmental conditions by means of different mechanisms that contribute to
openaire   +3 more sources

Photoinhibition of manganese enzymes: insights into the mechanism of photosystem II photoinhibition

, 2020
Evidence has recently been presented that photoinhibition of photosystem II (PSII) is triggered by absorption of light by the oxygen-evolving manganese cluster.
Susanne Rantamä, Eeva-Maija Puputti, Esa Tyystjä, Taina Tyystjä, Marja Hakala   +4 more
core  

Moderate Shading Improves Growth, Photosynthesis, and Physiological Traits in Spuriopinella brachycarpa (Kom.) Kitag.

Plants
To investigate the effects of varying degrees of shading on the photosynthetic characteristics of Spuriopinnella brachycarpa (Kom.) Kitag. experiments were conducted under five shading treatments: 0% (full sunlight), 20%, 40%, 60%, and 80%.
Shanshan Chen, Yan Zou, Qin Qi, Chunbo Zhao, Shuang Liu, Jianlei Qiao, Yue Yu, Jing Zhao, Shuang Li, Yue Zou, Xiang Li, Jiayu Teng, Huixin Lv, Baiming Yang   +13 more
doaj   +1 more source

Efficiency of photoprotection in microphytobenthos: role of vertical migration and the xanthophyll cycle against photoinhibition

, 2012
International audienceThe capacity of microphytobenthos to withstand the variable and extreme conditions of the intertidal environment, prone to cause photoinhibition, has been attributed to particularly efficient photoprotection.
Serôdio, Joao, Lavaud, Johann, Ezequiel, Joao, Barnett, Alexandre, Méléder, Vona, Mouget, Jean-Luc, Laviale, Martin   +6 more
core   +1 more source

Inhibition of electron transport at the cytochrome b6f complex protects photosystem II from photoinhibition

, 2000
Photoinhibition of photosystem II (PS II) activity was studied in thylakoid membranes illuminated in the presence of the inhibitor of the cytochrome b6f complex 2'iodo-6-isopropyl-3-methyl-2',4,4'-trinitrodiphenylether (DNP-INT).
Krieger-Liszkay, A., Kienzler, K., Liszkay, Anja, K. Kienzler, Kienzler, Katharina, Johnson, G.N., A. Krieger-Liszkay, Johnson, G. N., G.N. Johnson, Johnson, G. N.; id_orcid   +9 more
core   +1 more source