scholarly journals The redox-sensitive module of cyclophilin 20-3, 2-cysteine peroxiredoxin and cysteine synthase integrates sulfur metabolism and oxylipin signaling in the high light acclimation response

2017 ◽  
Vol 91 (6) ◽  
pp. 995-1014 ◽  
Author(s):  
Sara M. Müller ◽  
Shanshan Wang ◽  
Wilena Telman ◽  
Michael Liebthal ◽  
Helena Schnitzer ◽  
...  
Keyword(s):  
Sulfur Metabolism ◽  
High Light ◽  
Light Acclimation ◽  
Cysteine Synthase ◽  
Acclimation Response ◽  
Oxylipin Signaling

scholarly journals A molecular switch in sulfur metabolism to reduce arsenic and enrich selenium in rice grain

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Sheng-Kai Sun ◽  
Xuejie Xu ◽  
Zhong Tang ◽  
Zhu Tang ◽  
Xin-Yuan Huang ◽  
...  
Keyword(s):  
Grain Quality ◽  
Sulfur Metabolism ◽  
Physical Interaction ◽  
Rice Grain ◽  
Yield Losses ◽  
Serine Acetyltransferase ◽  
Cysteine Synthase ◽  
Arsenic Tolerance ◽  
Arsenic Accumulation ◽  
Low Levels

AbstractRice grains typically contain high levels of toxic arsenic but low levels of the essential micronutrient selenium. Anthropogenic arsenic contamination of paddy soils exacerbates arsenic toxicity in rice crops resulting in substantial yield losses. Here, we report the identification of the gain-of-function arsenite tolerant 1 (astol1) mutant of rice that benefits from enhanced sulfur and selenium assimilation, arsenic tolerance, and decreased arsenic accumulation in grains. The astol1 mutation promotes the physical interaction of the chloroplast-localized O-acetylserine (thiol) lyase protein with its interaction partner serine-acetyltransferase in the cysteine synthase complex. Activation of the serine-acetyltransferase in this complex promotes the uptake of sulfate and selenium and enhances the production of cysteine, glutathione, and phytochelatins, resulting in increased tolerance and decreased translocation of arsenic to grains. Our findings uncover the pivotal sensing-function of the cysteine synthase complex in plastids for optimizing stress resilience and grain quality by regulating a fundamental macronutrient assimilation pathway.

Nitrogen supplementation improves the high-light acclimation of Guazuma ulmifolia Lam. seedlings

Trees ◽  
2018 ◽  
Vol 33 (2) ◽  
pp. 421-431 ◽  
Author(s):  
Juliana Silva Rocha ◽  
Anderson Kikuchi Calzavara ◽  
Edmilson Bianchini ◽  
José Antonio Pimenta ◽  
Renata Stolf-Moreira ◽  
...  
Keyword(s):  
High Light ◽  
Light Acclimation ◽  
Nitrogen Supplementation ◽  
Guazuma Ulmifolia

scholarly journals Photosynthetic characterization of flavodoxin-expressing tobacco plants reveals a high light acclimation-like phenotype

2020 ◽  
Vol 1861 (8) ◽  
pp. 148211 ◽  
Author(s):  
Rodrigo Gómez ◽  
Nicolás Figueroa ◽  
Michael Melzer ◽  
Mohammad-Reza Hajirezaei ◽  
Néstor Carrillo ◽  
...  
Keyword(s):  
High Light ◽  
Light Acclimation ◽  
Tobacco Plants

scholarly journals Effect of high-light acclimation on photosynthetic apparatus of Norway spruce

2018 ◽  
Vol 1859 ◽  
pp. e106-e107
Author(s):  
Václav Karlický ◽  
Michal Štroch ◽  
Irena Kurasová ◽  
Zuzana Materová ◽  
Kristýna Večeřová ◽  
...  
Keyword(s):  
Norway Spruce ◽  
Photosynthetic Apparatus ◽  
High Light ◽  
Light Acclimation

scholarly journals Isotopically nonstationary13C flux analysis of changes inArabidopsis thalianaleaf metabolism due to high light acclimation

2014 ◽  
Vol 111 (47) ◽  
pp. 16967-16972 ◽  
Author(s):  
Fangfang Ma ◽  
Lara J. Jazmin ◽  
Jamey D. Young ◽  
Doug K. Allen
Keyword(s):  
High Light ◽  
Light Acclimation ◽  
Flux Analysis

scholarly journals Photorespiratory 2-phosphoglycolate metabolism and photoreduction of O2 cooperate in high-light acclimation of Synechocystis sp. strain PCC 6803

Planta ◽  
2009 ◽  
Vol 230 (4) ◽  
pp. 625-637 ◽  
Author(s):  
Claudia Hackenberg ◽  
Annerose Engelhardt ◽  
Hans C. P. Matthijs ◽  
Floyd Wittink ◽  
Hermann Bauwe ◽  
...  
Keyword(s):  
High Light ◽  
Light Acclimation ◽  
Synechocystis Sp ◽  
Pcc 6803

scholarly journals A photosynthesis operon in the chloroplast genome drives speciation in evening primroses

2020 ◽  
Author(s):  
Arkadiusz Zupok ◽  
Danijela Kozul ◽  
Mark Aurel Schöttler ◽  
Julia Niehörster ◽  
Frauke Garbsch ◽  
...  
Keyword(s):  
Chloroplast Genome ◽  
Population Biology ◽  
Climatic Conditions ◽  
High Light ◽  
Light Conditions ◽  
Hybrid Incompatibility ◽  
Changing Environments ◽  
Species Formation ◽  
Acclimation Response ◽  
Organelle Genetics

AbstractIncompatibility between the cytoplasm and the nucleus is considered as major factor in species formation, but mechanistic understanding is poor. In evening primroses, a model plant for organelle genetics and population biology, hybrid offspring regularly displays chloroplast-nuclear incompatibility. These incompatibilities affect photosynthesis, a trait under selection in changing environments. Here we show that light-dependent misregulation of the plastid psbB operon (encoding core subunits of photosystem II and the cytochrome b6f complex), can lead to hybrid incompatibility, thus ultimately driving speciation. This misregulation results in an impaired light acclimation response in incompatible plants. Moreover, as a result of their different chloroplast genotypes, the parental lines differ in their photosynthesis performance upon exposure to different light conditions. Significantly, the incompatible chloroplast genome is naturally found in xeric habitats with high light intensities, whereas the compatible one is limited to mesic habitats. Consequently, our data raise the possibility that the hybridization barrier evolved as a result of adaptation to specific climatic conditions.

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