Results 21 to 30 of about 9,700 (188)

Transport Proteins Enabling Plant Photorespiratory Metabolism

open access: yesPlants, 2021
Photorespiration (PR) is a metabolic repair pathway that acts in oxygenic photosynthetic organisms to degrade a toxic product of oxygen fixation generated by the enzyme ribulose 1,5-bisphosphate carboxylase/oxygenase. Within the metabolic pathway, energy
Franziska Kuhnert   +3 more
doaj   +1 more source

Responses of Physiology, Photosynthesis, and Related Genes to Saline Stress in Cornus hongkongensis subsp. tonkinensis (W. P. Fang) Q. Y. Xiang

open access: yesPlants, 2022
Cornus hongkongensis subsp. tonkinensis (W. P. Fang) Q. Y. Xiang is a native evergreen species with high ornamental value for abundant variations in leaf, bract, fruit, and tree gesture.
Jia-Qiu Yuan   +5 more
doaj   +1 more source

Photorespiration Enhances Acidification of the Thylakoid Lumen, Reduces the Plastoquinone Pool, and Contributes to the Oxidation of P700 at a Lower Partial Pressure of CO2 in Wheat Leaves

open access: yesPlants, 2020
The oxidation of P700 in photosystem I (PSI) is a robust mechanism that suppresses the production of reactive oxygen species. We researched the contribution of photorespiration to the oxidation of P700 in wheat leaves.
Shinya Wada   +2 more
doaj   +1 more source

13C Isotope Labelling to Follow the Flux of Photorespiratory Intermediates

open access: yesPlants, 2021
Measuring the carbon flux through metabolic pathways in intact illuminated leaves remains challenging because of, e.g., isotopic dilution by endogenous metabolites, the impossibility to reach isotopic steady state, and the occurrence of multiple pools ...
Cyril Abadie, Guillaume Tcherkez
doaj   +1 more source

Photosynthesis and Photorespiration in Algae [PDF]

open access: yesPlant Physiology, 1977
The CO(2) exchange of several species of fresh water and marine algae was measured in the laboratory to determine whether photorespiration occurs in these organisms. The algae were positioned as thin layers on filter paper and the CO(2) exchange determined in an open gas exchange system.
N D, Lloyd, D T, Canvin, D A, Culver
openaire   +2 more sources

Intrinsic Fluctuations in Transpiration Induce Photorespiration to Oxidize P700 in Photosystem I

open access: yesPlants, 2020
Upon exposure to environmental stress, the primary electron donor in photosystem I (PSI), P700, is oxidized to suppress the production of reactive oxygen species that could oxidatively inactivate the function of PSI.
Riu Furutani   +5 more
doaj   +1 more source

Loss of Function of Rice Plastidic Glycolate/Glycerate Translocator 1 Impairs Photorespiration and Plant Growth

open access: yesFrontiers in Plant Science, 2020
Ribulose-1,5-bisphosphate carboxylase/oxygenase, the key enzyme of photosynthetic carbon fixation, is able to accept both O2 and CO2 as substrates. When it fixes O2, it produces 2-phosphoglycolate, which is detoxified by photorespiration and recycled to ...
Su-Hyeon Shim   +8 more
doaj   +1 more source

Effects of Deficit Irrigation and Huanglongbing on Sweet Orange Trees

open access: yesFrontiers in Plant Science, 2021
This study addresses the interactive effects of deficit irrigation and huanglongbing (HLB) infection on the physiological, biochemical, and oxidative stress responses of sweet orange trees.
Jefferson Rangel da Silva   +5 more
doaj   +1 more source

Measurement of Photorespiration in Algae [PDF]

open access: yesPlant Physiology, 1982
The rates of true and apparent photosynthesis of two unicellular green algae, one diatom and four blue-green algae were measured in buffer at pH 8.0 at subsaturating concentrations of dissolved inorganic carbon (13-27 micromolar). Initial rates of depletion from the medium of inorganic carbon and (14)C activity caused by the algae in a closed system ...
B C, Birmingham, J R, Coleman, B, Colman
openaire   +2 more sources

Photorespiration Coupled With CO2 Assimilation Protects Photosystem I From Photoinhibition Under Moderate Poly(Ethylene Glycol)-Induced Osmotic Stress in Rice

open access: yesFrontiers in Plant Science, 2020
Photorespiration coupled with CO2 assimilation is thought to act as a defense system against photoinhibition caused by osmotic stress. In the present study, we examined whether such a mechanism is operative for the protection of photosystem I (PSI) in ...
Shinya Wada   +4 more
doaj   +1 more source

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