Results 51 to 60 of about 20,984 (208)

Evolutionary Conserved and Divergent Responses to Copper Zinc Superoxide Dismutase Inhibition in Plants

Plant, Cell &Environment, EarlyView.
ABSTRACT After an initial evolution in a reducing environment, life got successively challenged by reactive oxygen species (ROS), especially during the great oxidation event (GOE) that followed the development of photosynthesis. Therefore, ROS are deeply intertwined into the physiological, morphological and transcriptional responses of most present‐day
Stephanie Frohn, Fabian B. Haas, Benjamin G. Chavez, Bernd H. Dreyer, Erik V. Reiss, Anne Ziplys, Heiko Weichert, Saskia Hiltemann, José M. Ugalde, Andreas J. Meyer, John C. D'Auria, Stefan A. Rensing, Jos H. M. Schippers   +12 more
wiley   +1 more source

Thermal Safety Margins and Peak Leaf Temperatures Predict Vulnerability of Diverse Plant Species to an Experimental Heatwave

Plant, Cell &Environment, EarlyView.
ABSTRACT Extreme heat can push plants beyond their thermal safety margin (TSM) if maximum leaf temperature (Tleaf_max) exceeds leaf critical temperature (Tcrit). The TSM is potentially useful for assessing heat vulnerability across species but needs further validation, so we exposed 50 tree/shrub species in controlled glasshouses to a 6‐day heatwave ...
Diana Cox, Renée M. Marchin, David S. Ellsworth, Agnieszka Wujeska‐Klause, Alessandro Ossola, Kristine Y. Crous, Michelle R. Leishman, Paul D. Rymer, Mark G. Tjoelker   +8 more
wiley   +1 more source

Diurnal Variations in Photochemical Energy Utilization and Osmotic Adjustments in Black Poplar Leaves Under Progressive Water Stress

Plant, Cell &Environment, EarlyView.
ABSTRACT Drought limits the productivity of fast‐growing woody crops, although the metabolic adjustments conferring water stress tolerance remain poorly understood. We investigated the responses of Populus nigra seedlings to water stress by integrating daily physiological measurements and NMR metabolomic analyses.
Antonella Gori, Mauro Centritto, Anatoly P. Sobolev, Giovanni Marino, Francesco Loreto, Francesca Alderotti, Cecilia Brunetti   +6 more
wiley   +1 more source

Dynamic LHCI antenna and inter-photosystem spillover enable flexible light harvesting in Euglena gracilis. [PDF]

Plant J
Significance Statement Euglena gracilis is an early diverging photosynthetic organism with a unique mosaic photosynthetic apparatus. Biochemical and spectroscopic analysis reveals a kinetically slower photosystem I sharing excitation energy with photosystem II in the absence of strict photosystem segregation.
Akhtar P, Kovács L, Domonkos I, Pap Á, Pettkó-Szandtner A, Kuntam S, Lambrev PH.   +6 more
europepmc   +2 more sources

Genomic and Physiological Insights Into Heat–Drought Tolerance in Wheat Through GWAS and Phenotypic Evaluation

Plant, Cell &Environment, EarlyView.
ABSTRACT Climate change‐driven heat and drought stresses during reproductive stages significantly threaten wheat productivity. To investigate the genetic and physiological basis of combined heat–drought (HD) tolerance, we evaluated 345 wheat genotypes under three environments of HD stresses, non‐stress glasshouse conditions and a late‐sowing field ...
Jingjuan Zhang, Weinan Xu, Rakshith S. R. Gowda, Joel Johnstone, Malona Alinsug, Abhishek Bohra, Vanika Garg, Annapurna Chitikineni, Dion Bennett, Meixue Zhou, Meiqin Lu, Chengdao Li, Zhong‐Hua Chen, Reyazul Rouf Mir, Rajeev K. Varshney   +14 more
wiley   +1 more source

Cytokinin downregulates Photosystem II photochemistry during prolonged darkness in a phytochrome B-dependent manner. [PDF]

New Phytol
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 ...
Kábrtová V, Kučerová Z, Chamrád I, Lenobel R, Roudnický P, Skalák J, Hudeček M, Zavadil Kokáš F, Rác M, Vánská T, Nisler J, Hejátko J, Strnad M, Špundová M, Plíhal O.   +14 more
europepmc   +2 more sources

Vestigial Plastids in Parasitic Plants: Evolutionary Remnants or Adaptive Innovations?

Plant, Cell &Environment, EarlyView.
ABSTRACT Throughout the evolutionary history of plants, chloroplasts originating from a cyanobacterial endosymbiosis have undergone remarkable adaptation and specialization, giving rise to a multitude of plastid types. The evolution toward parasitism in plants represents a particularly extreme case of such specialization.
Laia Jené, Sergi Munné‐Bosch
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

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

Overexpression of Rubisco Activase Improves Photosynthesis and Plant Growth in Rice Under Fluctuating Light Under Future High CO2 Conditions

Plant, Cell &Environment, EarlyView.
ABSTRACT Rubisco activase mediates the activation of Rubisco, the key photosynthetic CO2‐fixing enzyme, and plays a crucial role in regulating photosynthesis and plant growth. Rubisco activase restores catalytic competence to Rubisco active sites by promoting the release of inhibitors in an ATP‐dependent manner.
Wataru Yamori, Marika Inagaki, Hiroshi Fukayama   +2 more
wiley   +1 more source