Results 21 to 30 of about 1,681 (166)

Abscisic acid as a factor in regulation of photosynthetic carbon metabolism of pea seedlings

open access: yesActa Societatis Botanicorum Poloniae, 2014
The influence of abscisic acid (ABA) on carbon metabolism and the activity of ribulosebisphosphate (RuBP) and phosphoenolpyruvate (PEP) carboxylases in 8-day-old pea seedlings was investigated.
Maria Faltynowicz   +2 more
doaj   +1 more source

Evidence of coexistence of C₃ and C₄ photosynthetic pathways in a green-tide-forming alga, Ulva prolifera. [PDF]

open access: yesPLoS ONE, 2012
Ulva prolifera, a typical green-tide-forming alga, can accumulate a large biomass in a relatively short time period, suggesting that photosynthesis in this organism, particularly its carbon fixation pathway, must be very efficient.
Jianfang Xu   +8 more
doaj   +1 more source

Rubisco function, evolution, and engineering [PDF]

open access: yesarXiv, 2022
Carbon fixation is the process by which CO2 is converted from a gas into biomass. The Calvin Benson Bassham (CBB) cycle is the dominant carbon fixation pathway on earth, driving >99.5% of the ~120 billion tons of carbon that are "fixed" as sugar, by plants, algae and cyanobacteria.
arxiv  

Phosphoenolpyruvate carboxylase identified as a key enzyme in erythrocytic Plasmodium falciparum carbon metabolism. [PDF]

open access: yesPLoS Pathogens, 2014
Phospoenolpyruvate carboxylase (PEPC) is absent from humans but encoded in the Plasmodium falciparum genome, suggesting that PEPC has a parasite-specific function. To investigate its importance in P. falciparum, we generated a pepc null mutant (D10(Δpepc)
Janet Storm   +7 more
doaj   +1 more source

Convergent molecular evolution of phosphoenolpyruvate carboxylase gene family in C4 and crassulacean acid metabolism plants [PDF]

open access: yesPeerJ, 2022
Phosphoenolpyruvate carboxylase (PEPC), as the key enzyme in initial carbon fixation of C4and crassulacean acid mechanism (CAM) pathways, was thought to undergo convergent adaptive changes resulting in the convergent evolution of C4 and CAM ...
Jiang-Ping Shu   +2 more
doaj   +2 more sources

Diurnal Changes in Photosynthesis in Sugarcane Leaves: I. Carbon dioxide exchange rate, photosynthetic enzyme activities and metabolite levels relating to the C4 pathway and the Calvin cycle

open access: yesPlant Production Science, 2000
Diurnal changes in carbon dioxide exchange rate (CER), stomatal conductance (gs), photosynthetic enzyme activities and metabolite levels relating to the C4 pathway and the Calvin cycle in sugarcane (Saccharum sp. cv.
Yu-Chun Du   +3 more
doaj   +1 more source

Application of a Novel and Automated Branched DNA in Situ Hybridization Method for the Rapid and Sensitive Localization of mRNA Molecules in Plant Tissues

open access: yesApplications in Plant Sciences, 2014
Premise of the study: A novel branched DNA detection technology, RNAscope in situ hybridization (ISH), originally developed for use on human clinical and animal tissues, was adapted for use in plant tissue in an attempt to overcome some of the ...
Andrew J. Bowling   +2 more
doaj   +1 more source

Regulation of Phosphoenolpyruvate Carboxylase Activity in Maize Leaves [PDF]

open access: yesPlant Physiology, 1987
The aim of this work was to investigate how light regulates the activity of phosphoenolpyruvate carboxylase in vivo in C(4) plants. The properties of phosphoenolpyruvate carboxylase were investigated in extracts which were rapidly prepared (in less than 30 seconds) from darkened and illuminated leaves of Zea mays. Illumination resulted in a significant
Richard C. Leegood, Helen D. Doncaster
openaire   +3 more sources

Utilization of urea by leaves of bromeliad Vriesea gigantea under water deficit: much more than a nitrogen source

open access: yesBiologia Plantarum, 2017
Vriesea gigantea Gaudichaud is an epiphytic bromeliad with a high capacity to take up urea. In plants, urea is hydrolyzed by urease into ammonium and CO2, providing nitrogen to the plant.
A. Matiz   +3 more
doaj   +1 more source

CO2 recycling by phosphoenolpyruvate carboxylase enables cassava leaf metabolism to tolerate low water availability

open access: yesFrontiers in Plant Science, 2023
Cassava is a staple crop that acclimatizes well to dry weather and limited water availability. The drought response mechanism of quick stomatal closure observed in cassava has no explicit link to the metabolism connecting its physiological response and ...
Nattharat Punyasu   +6 more
doaj   +1 more source

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