Results 91 to 100 of about 6,484 (226)

Temperature Acclimation of Chlorophyll Fluorescence and Carboxylation Capacity From Near‐Instantaneous to Weekly Time Scales

Plant, Cell &Environment, EarlyView.
ABSTRACT We studied near‐instantaneous temperature responses of light‐saturated photosynthesis (Asat) and the operating efficiency of photosystem II (ΦPSII) in relation to acclimation of photosynthetic biochemistry to temperature at the timescale of 1–8 days. We grew two closely related Brassica oleracea L.
Paul L. Drake, Erik J. Veneklaas, Nicholas G. Smith, Steven M. Driever, Hugo J. de Boer   +4 more
wiley   +1 more source

Highly Polygenic Control of Photosynthetic Responses to Nighttime Temperature Studied by Genomic Prediction

Plant, Cell &Environment, EarlyView.
ABSTRACT Rising nighttime temperature (Tnight) can reduce crop yields while low Tnight may restrict plant growth and development. Despite quantifiable effects of Tnight, genetic basis underlying plant responses to Tnight remains unclear. We investigated natural variation in long‐term response of effective photosynthetic efficiency (Fq’/Fm’) to Tnight ...
Ana Carolina dos Santos Sá, Alina Bazarova, Andreas Fischbach, Stefan Kesselheim, Benjamin Stich, Shizue Matsubara   +5 more
wiley   +1 more source

An optimized protocol for the preparation of oxygen-evolving thylakoid membranes from Cyclotella meneghiniana provides a tool for the investigation of diatom plastidic electron transport

BMC Plant Biology, 2017
Background The preparation of functional thylakoid membranes from diatoms with a silica cell wall is still a largely unsolved challenge. Therefore, an optimized protocol for the isolation of oxygen evolving thylakoid membranes of the centric diatom ...
Marcel Kansy, Alexandra Gurowietz, Christian Wilhelm, Reimund Goss   +3 more
doaj   +1 more source

Evaluating the Combined Effects of Elevated [CO2] and Accelerated NPQ Relaxation on Yield, Physiology and Transcription in Soybean

Plant, Cell &Environment, EarlyView.
ABSTRACT Improving photosynthesis is proposed as a means of enhancing crop productivity. To assess whether simultaneous increases in light use‐efficiency and carbon assimilation are additive, we investigated the impact of elevated CO2 on the performance of a transgenic soybean line engineered for faster relaxation of photoprotection by overexpression ...
Dilkaran Singh, Amanda P. De Souza, Lynn Doran, Atinder Singh, Jeffrey Hansen, Laurie Beth Leonelli, Steven J. Burgess   +6 more
wiley   +1 more source

Removal of Photosystem I Subunit PsaE Leads to Photosynthetic Hydrogen Production in a Cyanobacterial PsaF‐HoxYH Fusion Strain

Plant, Cell &Environment, EarlyView.
ABSTRACT Photosynthetic hydrogen (photoH2) production is a promising approach for the utilisation of solar energy. Fusion of a hydrogenase (H2ase) to photosystem I (PSI) provides a direct light‐driven route for photoH2 generation. We established the lateral transmembrane subunit PsaF of PSI as a new fusion partner for the NiFe‐hydrogenase (HoxYH) in ...
Florian Paul, Nadine Strabel, Marko Boehm, Jens Appel, Kirstin Gutekunst   +4 more
wiley   +1 more source

Photosystems activities and polypeptide composition of Cyamopsis tetragonoloba and Vigna mungo thylakoids as affected by exclusion of solar UV radiation

Biologia Plantarum, 2010
The impacts of solar UV (280-400 nm) radiation on photosynthetic activities and polypeptide composition of thylakoids of cluster bean (Cyamopsis tetragonoloba L, UV-B sensitive) and black gram (Vigna mungo L., UV-B resistant) plants were compared.
P. Amudha, M. Jayakumar, G. Kulandaivelu
doaj   +1 more source

Antioxidants Differentially Regulate Non‐Photochemical Quenching

Plant, Cell &Environment, EarlyView.
ABSTRACT Non‐photochemical quenching (NPQ) dissipates excess light energy as heat, limiting reactive oxygen species production during photosynthesis. Exogenous antioxidants are widely reported to improve plant performance under stress, yet their impacts on NPQ are inconsistent across studies, complicating mechanistic interpretation.
Aline de Rodrigues de Queiroz, Jeremy H. Brown, Nicole R. Buan, Julie M. Stone, Katarzyna Glowacka, Rebecca L. Roston   +5 more
wiley   +1 more source

Time‐series multi‐omics analysis of micronutrient stress in Sorghum bicolor reveals iron and zinc crosstalk and regulatory network conservation

Plant Biology, EarlyView.
Overlap between Fe and Zn responsive gene regulatory networks (GRNs) were found, indicative of micronutrient crosstalk, and conservation of root and leaf GRNs and genes suggests strong constraint on homeostasis networks in plants. Abstract Micronutrient stress impacts growth, biomass production, and grain yield in crops.
A. Mishra, A. Bhat, S. Kumari, R. Sharma, J. Braynen, D. Tadesse, S. El Alaoui, S. Seaver, N. Grosjean, D. Ware, M. Xie, T. Paape   +11 more
wiley   +1 more source

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

Analysis of Metals in Whole Cells, Thylakoids and Photosynthetic Protein Complexes in Synechocystis sp. PCC6803

Bio-Protocol, 2018
Metals are essential in many biological processes, including oxygenic photosynthesis. Here we described a method to measure the metal pool in whole cells and thylakoids, including the bioactive pool in intact photosynthetic protein complexes in the model
Chiara Gandini, Søren Husted, Sidsel Schmidt   +2 more
doaj   +1 more source