Results 101 to 110 of about 25,080 (233)

Exogenous IAA application alleviated altered physiological and biochemical processes through promoting H‐ATPase and Fe chelate reductase activities in common bean (Phaseolus vulgaris L.) subjected to iron deficiency

Plant Biology, EarlyView.
Exogenous IAA supply enhances the strategy I response in common bean under iron deficiency. Abstract Iron deficiency is a common nutritional disorder observed in calcareous soils, where its resolution by classical methods has shown its failure. However, the exploitation of certain potentialities possessed by crops (rhizosphere acidification, H‐ATPase ...
K. Nsiri, M. Hmissi, N. Baccari, K. Bouzidi, M. J. G. del Rosal, A. Krouma   +5 more
wiley   +1 more source

Effects of dopamine on reducing salt stress damage in pepper (Capsicum annuum L.) at morphological, physiological, biochemical, and molecular levels

Annals of Applied Biology, Volume 189, Issue 1, July 2026.
Salt stress causes oxidative and osmotic stress, resulting in decreased nutrient uptake, plant growth, and photosynthetic rate. This study suggests that foliar application of dopamine can reduce salinity‐induced oxidative damage in pepper plants by altering antioxidant activity, biochemical, and molecular responses.
Sumeyra Ucar, Esra Yaprak, Melek Ekinci, Merve Yuce, Murat Aydin, Metin Turan, Esma Yigider, Guleray Agar, Melike Akca, Simona Ioana Vicas, Ertan Yildirim   +10 more
wiley   +1 more source

The Ability of Cyanobacterial Cells to Restore UV-B Radiation Induced Damage to Photosystem II is Influenced by Photolyase Dependent DNA Repair [PDF]

, 2013
Damage of DNA and Photosystem-II are among the most significant effects of UV-B irradiation in photosynthetic organisms. Both damaged DNA and Photosystem-II can be repaired, which represent important defense mechanisms against detrimental UV-B effects ...
Kós, Péter, Nagy, Csaba István, Sass, László, Vass, Imre, Vass, István-Zoltán   +4 more
core   +1 more source

Functional divergence of LhcSR and PsbS in zeaxanthin‐mediated non‐photochemical quenching

New Phytologist, Volume 250, Issue 5, Page 3042-3052, June 2026.
Summary To protect photosystem II from excess light, non‐photochemical quenching (NPQ) dissipates excess energy as heat. NPQ relies on trigger proteins, LhcSR in algae and PsbS in vascular plants, and the light‐regulated xanthophyll cycle, which interconverts violaxanthin and zeaxanthin through the opposite activities of violaxanthin de‐epoxidase and ...
Claudia Beraldo, Cleo Bagchus, Dana Verhoeven, Alessandra Bellan, Caterina Gerotto, Emilie Wientjes, Herbert van Amerongen, Tomas Morosinotto, Alessandro Alboresi   +8 more
wiley   +1 more source

Phytoplankton production modelling in three marine ecosystems—static versus dynamic approach [PDF]

, 2006
Phytoplankton productivity is usually determined from water samples incubated at a number of irradiance levels during several hours. The resultant productivity-irradiance (P–E) curves are then used to estimate local and/or global phytoplankton ...
Duarte, Pedro, Macedo, M. F.
core   +1 more source

Loss of qE Does Not Necessarily Lead to Photoinhibition: Sustained Non‐Photochemical Quenching in the Absence of PsbS and Zeaxanthin

Plant, Cell &Environment, Volume 49, Issue 6, Page 3405-3425, June 2026.
ABSTRACT Photosynthetic light‐harvesting complexes mediate light absorption and energy dissipation. By modulating the photosystems' absorption cross‐section, they affect both photosynthetic activity and non‐photochemical quenching (NPQ). These processes are often studied by spectrally integrated chlorophyll fluorescence, masking their associated ...
Maximiliano Cainzos, Chen Hu, Maria Dolores Pissolato, Nazeer Fataftah, Sanchali Nanda, Stefan Jansson   +5 more
wiley   +1 more source

Tolerance to photoinhibition within lichen species is higher in melanised thalli

Photosynthetica, 2019
Some lichenized ascomycetes synthesize melanic pigments when exposed to ultraviolet light and high solar radiation. Here, we used chlorophyll fluorescence in order to test the effect of melanisation on the ability of the lichens Cetraria islandica ...
T.C. MAFOLE, K.A. SOLHAUG, F.V. MINIBAYEVA, R.P. BECKETT   +3 more
doaj   +1 more source

Metabolic Reprogramming Analysis of Wheat Response to Low Temperature Stress Under Nitrogen Supply

Food and Energy Security, Volume 15, Issue 3, May/June 2026.
Low temperature stress triggers a defense network that maintains growth at the expense of inhibiting photosynthesis and chlorophyll synthesis. Temperature recovery effectively repairs low temperature‐induced damage and enhances stress resistance, while nitrogen supply can further augment these protective processes to strengthen cold tolerance ...
Qiujuan Jiao, Haitao Liu, Zhijie Ren, Gezi Li, Lina Fan, Jiayu Hu, Yufang Huang, Shiliang Liu, Youliang Ye, Yanan Zhao   +9 more
wiley   +1 more source

Outdoor cultivation of Picochlorum sp. in a novel V-shaped photobioreactor on the Caribbean island Bonaire

Frontiers in Bioengineering and Biotechnology
Microalgae are a promising renewable feedstock that can be produced on non-arable land using seawater. Their biomass contains proteins, lipids, carbohydrates, and pigments, and can be used for various biobased products, such as food, feed, biochemicals ...
Rocca Chin-On, Rocca Chin-On, Mila de Boer, Cas van de Voort, Juliëtte Camstra, Maria Barbosa, René H. Wijffels, René H. Wijffels, Marcel Janssen   +8 more
doaj   +1 more source

Moderate photoinhibition of photosystem II protects photosystem I from photodamage at chilling stress in tobacco leaves

Frontiers in Plant Science, 2016
It has been indicated that photosystem I (PSI) is susceptible to chilling-light stress in tobacco leaves, but the effect of growth light intensity on chilling-induced PSI photoinhibition in tobacco is unclear.
Wei eHuang, Ying-Jie eYang, Hong eHu, Shi-Bao eZhang   +3 more
doaj   +1 more source