Results 81 to 90 of about 28,959 (255)

Exogenous Si Mitigates the Effects of Cinnamic-Acid-Induced Stress by Regulating Carbon Metabolism and Photosynthetic Pigments in Cucumber Seedlings

Agronomy, 2022
(1) Background: Cinnamic acid (CA) is a harmful substance secreted by the roots of continuous-cropping crops. (2) Methods: This study aimed to investigate how exogenous Si affects chlorophyll content and carbon metabolism in cucumber seedlings under CA ...
Jian Lyu, Li Jin, Xin Meng, Ning Jin, Shuya Wang, Linli Hu, Guobin Zhang, Yue Wu, Shilei Luo, Jihua Yu   +9 more
doaj   +1 more source

Does Leaf Position within a Canopy Affect Acclimation of Photosynthesis to Elevated CO2? . Analysis of a Wheat Crop under Free-Air CO2 Enrichment [PDF]

, 1998
Previous studies of photosynthetic acclimation to elevated CO2 have focused on the most recently expanded, sunlit leaves in the canopy. We examined acclimation in a vertical profile of leaves through a canopy of wheat (Triticum aestivum L.). The crop was
Garcia, R.L., Hendrey, G.R., Kimball, B.A., La Morte, R.L., La Roche, J., Long, S.P., Osborne, C.P., Pinter Jr, P.J., Wall, G.W.   +8 more
core   +1 more source

Drought and Herbivory Have Selective Transgenerational Effects on Soybean Eco‐Physiology, Defence and Fitness

Plant, Cell &Environment, EarlyView.
ABSTRACT Soybeans, one of the most important legumes, face multiple stresses including drought and herbivory. But the potential transfer of the interactive effects of these stressors onto the transgenerational plants has not been understood. We hypothesised that progeny from stressed parents will have enhanced ecophysiology and defence traits through ...
Manish Gautam, Rupesh Kariyat
wiley   +1 more source

Functional and mutational analysis of the light-harvesting chlorophyll a/b protein of thylakoid membranes. [PDF]

, 1986
The precursor for a Lemna light-harvesting chlorophyll a/b protein (pLHCP) has been synthesized in vitro from a single member of the nuclear LHCP multigene family. We report the sequence of this gene.
Chitnis, PR, Harel, E, Kohorn, BD, Thornber, JP, Tobin, EM   +4 more
core  

Engineered Production of Hydroxycinnamoyl Tyramine Conjugates Limits the Growth of the Pathogen Pseudomonas syringae in Arabidopsis

Plant, Cell &Environment, EarlyView.
ABSTRACT Hydroxycinnamoyl tyramine conjugates are phenolamides produced by plants in response to pathogen attack and biotic stresses. Their proposed mechanisms of action include cytotoxicity towards pathogens, cell wall reinforcement to restrict pathogen proliferation, and signaling activity to trigger general stress responses.
Halbay Turumtay, Jana A. Hassan, Sami Kazaz, Yu Gao, Yang Tian, Yi‐Chun Chen, Ramu Kakumanu, Emine Akyuz Turumtay, Mehmet Veysi Cetiz, Hemant Choudhary, Edward E. K. Baidoo, Blake A. Simmons, Henrik V. Scheller, Jennifer D. Lewis, Aymerick Eudes   +14 more
wiley   +1 more source

Exogenous spermidine enhances expression of Calvin cycle genes andphotosynthetic efficiency in sweet sorghum seedlings under salt stress

Biologia Plantarum, 2019
Salinity adversely affects plants resulting in disruption to plant growth and physiology. Previously, it has been shown that these negative effects can be alleviated by various exogenous polyamines.
A.I. EL SAYED, M.A.M. EL-HAMAHMY, M.S. RAFUDEEN, M.K.H. EBRAHIM   +3 more
doaj   +1 more source

How Plants May Maintain Protein Homeostasis Under Rising Atmospheric CO2

Plant, Cell &Environment, EarlyView.
ABSTRACT Vascular plants may employ several physiological mechanisms to stabilize their protein contents as atmospheric CO2 concentrations change over a day, year, decade, or century. One mechanism is that plants may rely more on soil ammonium as their nitrogen source when CO2 increases.
Arnold J. Bloom, Xiaoxiao Shi, Nathan M. Hannon   +2 more
wiley   +1 more source

Photorespiration: metabolic pathways and their role in stress protection [PDF]

, 2000
Photorespiration results from the oxygenase reaction catalysed by ribulose-1,5-bisphosphate carboxylase/ oxygenase. In this reaction glycollate-2-phosphate is produced and subsequently metabolized in the photorespiratory pathway to form the Calvin ...
Anderson L. E., Astrid Wingler, C. B. Osmond, C. H. Foyer, Downton W. J. S., G. Bock, Kacser H., Koch K. E., Nakamura Y., Noctor G., Noctor G., Nour J. M., Nour J. M., Osmond C. B., Peter J. Lea, Richard C. Leegood, Richardson K. E., Ruban A.V., Tolbert N. E., W. Paul Quick, Walker R. R., Wingler A.   +21 more
core   +2 more sources

Structural Studies of Ribulose 1,5-Bisphosphate Carboxylase/Oxygenase

, 1978
From studies of three crystal forms of ribulose bisphosphate (RuBP) carboxylase from Nicotiana tabacum (called I, II, and III), we have determined the subunit organization of RuBP carboxylase in increasing detail. Combined x-ray diffraction and electron microscope data from these crystals show that there must be some multiple of eight polypeptide ...
Eisenberg, David, Baker, TS, Suh, SW, Smith, WW   +3 more
openaire   +4 more sources

Thylakoids reorganization enables driving photosynthesis under far‐red light in the microalga Nannochloropsis gaditana

New Phytologist, Volume 249, Issue 4, Page 1785-1799, February 2026.
Summary Oxygenic photosynthesis is driven by visible light in most photosynthetic organisms, with exceptions in a few cyanobacteria and microalgae species, which can extend the light absorption to far‐red (FR) wavelengths, by synthesizing new pigments or shifting the antennae absorption range beyond 700 nm.
Elisabetta Liistro, Mariano Battistuzzi, Mattia Storti, Beatrice Boccia, Lorenzo Cocola, Giorgio Perin, Tomas Morosinotto, Nicoletta La Rocca   +7 more
wiley   +1 more source