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RUBISCORibulose Bisphosphate Carboxylase/Oxygenase (enzyme used in carbon fixation)
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A tomato chloroplast-targeted DnaJ protein protects rubisco activity under heat stress.
2] assimilation can occur prior to, or in the absence of, depressions in PSII function and may more likely involve impairments in the Calvin cycle, possibly mediated by Rubisco (Allen et al, 1999).
A fotorrespiracao, segundo TAIZ & ZEIGER (2013), e o processo bioquimico em que a enzima Rubisco, responsavel pela carboxilacao na fotossintese, catalisa a reacao de oxigenacao ao inves da carboxilacao, por ter afinidade tanto pelo C[O.
Six genes, that are known to respond to oxidative stress, were selected for this study: ascorbate peroxidase (APX), catalase (CAT), glutathione peroxidase (GPX), Cu/Zn superoxide dismutase (CSD), an ethylene forming enzyme (EFE) and rubisco activase (RCA).
In major wheat growing regions temperature exceeding 30C during reproductive growth and reduces grain yield and quality which is due to a wide range of interlinked processes including accelerated development reduced photosynthesis; either via damage to photosystem-II or inhibition of Rubisco activase increased respiration disruptions of the respiratory mechanism and decreased starch synthesis in developing grain.
En general, en el follaje de las gramineas se observan dos bandas electroforeticas con mayor intensidad, que probablemente sean la RuBisCO (ribulosa-1, 5bisfosfato carboxilasa oxigenasa), proteina con mayor concentracion en tejidos verdes y con peso de 56 kDa, y otras proteinas involucradas en procesos de reserva llamadas proteinas vegetativas de almacenamiento foliares (VSP), que se encuentran en las hojas.
Systematics of Autralian Lepidium Species (Brassicacea) and Implications for Their Origin: Evidence from IEF Analysis of Rubisco.