Results 41 to 50 of about 13,627 (186)

The impact of light/dark regimes on structure and physiology of Chlorella vulgaris biofilms

Frontiers in Microbiology, 2023
IntroductionBiofilm-based microalgae production technologies offer enormous potential for improving sustainability and productivity. However, the light pattern induced by these technologies is a key concern for optimization.MethodsIn this work, the ...
Yan Gao, Olivier Bernard, Andrea Fanesi, Patrick Perré, Filipa Lopes   +4 more
doaj   +1 more source

When and how does photoinhibition matter for plant fitness?

, 2022
The many biophysical factors that shape how plant species sort across environmental gradients may include photoinhibition, which I define broadly as oxidative damage that plants and other phototrophs risk incurring when they absorb excess light energy ...
Shan Kothari
core   +1 more source

Proton-mediated photoprotection mechanism in photosystem II

Frontiers in Plant Science, 2022
Photo-induced charge separation, which is terminated by electron transfer from the primary quinone QA to the secondary quinone QB, provides the driving force for O2 evolution in photosystem II (PSII).
Yu Sugo, Hiroshi Ishikita, Hiroshi Ishikita   +2 more
doaj   +1 more source

Fotossíntese e fotoinibição em mogno e acariquara em função da luminosidade e temperatura foliar Photosynthesis and photoinhibition in mahogany and acariquara as a function of irradiance and leaf temperature

Pesquisa Agropecuária Brasileira, 2007
A fotoinibição pode ser intensificada por fatores de estresse como alta temperatura. O objetivo deste trabalho foi determinar os efeitos da luminosidade e temperatura na fotossíntese e na recuperação da fotoinibição sob baixa irradiância em mogno ...
Daniela Pereira Dias, Ricardo Antonio Marenco   +1 more
doaj   +1 more source

Higher Reduced State of Fe/S-Signals, with the Suppressed Oxidation of P700, Causes PSI Inactivation in Arabidopsis thaliana

Antioxidants, 2022
Environmental stress increases the risk of electron accumulation in photosystem I (PSI) of chloroplasts, which can cause oxygen (O2) reduction to superoxide radicals and decreased photosynthetic ability.
Riu Furutani, Shinya Wada, Kentaro Ifuku, Shu Maekawa, Chikahiro Miyake   +4 more
doaj   +1 more source

Photoinhibition in benthic diatom assemblages under light stress [PDF]

, 2013
Microphytobenthos are frequently subjected to light intensities higher than those required to saturate photosynthesis, which consequently can cause photoinhibition.
Cruz, S., Domingues, N., Serôdio, J., Da Silva, J. Marques, Laviale, M., Jesus, B., Cartaxana, P.   +6 more
core   +1 more source

Salt pretreatment alleviated salt-induced photoinhibition in sweet sorghum

, 2015
Sweet sorghum is an important energy crop. This study aimed to investigate the effects of salt pretreatment on the interaction between photosystem II (PSII) and photosystem I (PSI) upon salt stress. In this study, sweet sorghum was pretreated with 150 mM
Yan, K, Liu, ZN, Yan, K (reprint author), Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res YIC, Shandong Prov Key Lab Coastal Environm Proc,YICCA, Yantai 264003, Peoples R China. kyan@yic.ac.cn, Chen, XB, Zhao, SJ   +4 more
core   +1 more source

Seed traits of species from South Brazilian grasslands with contrasting distribution [PDF]

Acta Botânica Brasílica
South Brazilian grasslands are among the most species-rich grasslands worldwide yet they have been suffering ongoing degradation due to land-use. Little is known about the reproductive ecology of the native species of these grasslands. Thus, our goal was
Alexandre Cristante Martins, Rafaella Migliavacca Marchioretto, Ariane Tonetto Vieira, Eudes Maria Stiehl-Alves, Eliane Kaltchuk dos Santos, Tatiana Teixeira de Souza-Chies   +5 more
doaj   +2 more sources

The zeaxanthin epoxidase is degraded along with the D1 protein during photoinhibition of photosystem II

Plant Direct, 2019
The xanthophyll zeaxanthin is synthesized in chloroplasts upon high light exposure of plants and serves central photoprotective functions. The reconversion of zeaxanthin to violaxanthin is catalyzed by the zeaxanthin epoxidase (ZEP).
Stephanie Bethmann, Michael Melzer, Nadine Schwarz, Peter Jahns   +3 more
doaj   +1 more source

OsCPK12‐OsATPD1 Module Regulates Photosynthetic Acclimation to Light Stress in Rice

Advanced Science, EarlyView.
OsCPK12 interacts and phosphorylates OsAtpD1 at Ser8 in its transit peptide. This phosphorylation promote its chloroplast translocation, thereby maintaining ATP synthase activity and proton gradient (ΔpH) homeostasis and regulating photosynthetic acclimation, photoprotection, and repair under light stress.
Beifang Wang, Aaron Chan, Yongyi Fan, Yanwu Wang, Pao Xue, Yingxin Zhang, Xiaodeng Zhan, Weixun Wu, Ping Yu, Daibo Chen, Junlin Fu, Yongbo Hong, Xihong Shen, Lianping Sun, Aike Zhu, Shihua Cheng, Qunen Liu, Liyong Cao   +17 more
wiley   +1 more source