Results 1 to 10 of about 22,116 (228)

Photorespiration: The Futile Cycle?

Plants, 2021
Photorespiration, or C2 photosynthesis, is generally considered a futile cycle that potentially decreases photosynthetic carbon fixation by more than 25%.
Xiaoxiao Shi, Arnold J Bloom
exaly   +3 more sources

The green algae CO2 concentrating mechanism and photorespiration jointly operate during acclimation to low CO2 [PDF]

Nature Communications
Due to low availability of CO2 in aquatic environment, microalgae have evolved a CO2 concentrating mechanism (CCM). It has long been thought that operation of CCM would suppress photorespiration by increasing the CO2 concentration at the Rubisco active ...
Ousmane Dao, Marie Bertrand, Saleh Alseekh, Florian Veillet, Pascaline Auroy, Phuong-Chi Nguyen, Bertrand Légeret, Virginie Epting, Amélie Morin, Stephan Cuiné, Caroline L. Monteil, Luke C. M. Mackinder, Adrien Burlacot, Anja Krieger-Liszkay, Andreas P. M. Weber, Alisdair R. Fernie, Gilles Peltier, Yonghua Li-Beisson   +17 more
doaj   +2 more sources

Photorespiration in plant adaptation to environmental changes

Crop and Environment
Photorespiration begins with the oxygenation reaction catalyzed by 1,5-bisphosphate carboxylase/oxygenase (Rubisco) and serves as a repair pathway for carbon retrieval by converting 2-phosphoglycolate to 3-phosphogly-cerate allowing plants to thrive in ...
Zhi-Sheng Zhang, Xin-Xiang Peng
exaly   +3 more sources

Modeling dynamic oxygen permeability as a mechanism to mitigate oxygen-induced stresses on photosynthesis and N2 fixation in marine Trichodesmium [PDF]

Microbiology Spectrum
Trichodesmium, the predominant marine diazotrophic cyanobacterium, concurrently performs nitrogen (N2) fixation and photosynthesis, the latter of which produces oxygen (O2) that inhibits N2 fixation.
Weicheng Luo, Keisuke Inomura, Ondřej Prášil, Meri Eichner, Ya-Wei Luo   +4 more
doaj   +2 more sources

A cytosolic glyoxylate shunt complements the canonical photorespiratory pathway in Arabidopsis [PDF]

Nature Communications
Photorespiration functions in part to support photosynthetic performance, especially under stress such as high light, yet the underlying mechanisms are poorly understood.
Xiaotong Jiang, Amanda M. Koenig, Berkley J. Walker, Jianping Hu   +3 more
doaj   +2 more sources

High-to-low CO2 acclimation reveals plasticity of the photorespiratory pathway and indicates regulatory links to cellular metabolism of Arabidopsis [PDF]

, 2012
Background: Photorespiratory carbon metabolism was long considered as an essentially closed and nonregulated pathway with little interaction to other metabolic routes except nitrogen metabolism and respiration. Most mutants of this pathway cannot survive
Alisdair, R.F., Bauwe, H., Dreissen, A., Fernie, A.R., Florian, A., Frankenbach, S., Hocken, N., Mielewczik, M., Timm, S., Walter, A.   +9 more
core   +11 more sources

A Machine Learning Model for Photorespiration Response to Multi-Factors

Horticulturae, 2021
Photorespiration results in a large amount of leaf photosynthesis consumption. However, there are few studies on the response of photorespiration to multi-factors.
Kunpeng Zheng, Yu Bo, Yanda Bao, Xiaolei Zhu, Jian Wang, Yu Wang   +5 more
doaj   +1 more source

Identification and Characterization of Genes Encoding the Hydroxypyruvate Reductases in Chlamydomonas Reveal Their Distinct Roles in Photorespiration

Frontiers in Plant Science, 2021
Photorespiration plays an important role in maintaining normal physiological metabolism in higher plants and other oxygenic organisms, such as algae.
Menglin Shi, Lei Zhao, Lei Zhao, Yong Wang   +3 more
doaj   +1 more source

Photorespiration [PDF]

The Arabidopsis Book, 2010
Photorespiration is initiated by the oxygenase activity of ribulose-1,5-bisphosphate-carboxylase/oxygenase (RUBISCO), the same enzyme that is also responsible for CO(2) fixation in almost all photosynthetic organisms. Phosphoglycolate formed by oxygen fixation is recycled to the Calvin cycle intermediate phosphoglycerate in the photorespiratory pathway.
Christoph, Peterhansel, Ina, Horst, Markus, Niessen, Christian, Blume, Rashad, Kebeish, Sophia, Kürkcüoglu, Fritz, Kreuzaler   +6 more
openaire   +2 more sources

Impairing photorespiration increases photosynthetic conversion of CO2 to isoprene in engineered cyanobacteria

Bioresources and Bioprocessing, 2021
Photorespiration consumes fixed carbon and energy generated from photosynthesis to recycle glycolate and dissipate excess energy. The aim of this study was to investigate whether we can use the energy that is otherwise consumed by photorespiration to ...
Jie Zhou, Fan Yang, Fuliang Zhang, Hengkai Meng, Yanping Zhang, Yin Li   +5 more
doaj   +1 more source