Cytokinin inhibition of leaf senescence
WebFeb 1, 2001 · Cytokinins modulate a number of important developmental processes, including the last phase of leaf development, known as senescence, which is associated with chlorophyll breakdown, photosynthetic apparatus disintegration and oxidative damage. There is ample evidence that cytokinins can slow down all these senescence … WebJun 16, 2024 · Leaf senescence is a genetically controlled developmental process (Gan and Amasino 1997; Lim et al. 2007; Kim et al. 2009 ). However, the initiation of leaf senescence is regulated by an array of external and internal signals that are integrated …
Cytokinin inhibition of leaf senescence
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WebMar 30, 2015 · Cytokinins also play a role in stress response and delaying leaf senescence [ 15 ]. Both exogenous applications of cytokinins, as well as genetic transformation to increase endogenous cytokinins levels have been shown to delay senescence and increase abiotic stress tolerance in creeping bentgrass [ 2, 16 – 18 ].
WebNov 1, 2003 · Cytokinin has been reported to delay leaf senescence ( Gan and Amasino, 1996 ), so it was predicted that cytokinin deficiency might promote senescence. Instead, chlorophyll was retained in cytokinin-deficient leaves longer than in wild-type leaves, particularly in regions adjacent to major veins. WebCarabelli et al. (2007) showed that CKX6, a cytokinin oxidase/hydrolase, was induced in the simulated shade and promoted cytokinin depletion specifically in pre-procambial cells of developing leaf primordial, …
WebOct 10, 2024 · The dark-detached leaves are widely used as a model to investigate senescence-delaying mechanisms of cytokinin (CК). The role of CK during senescence of detached Arabidopsis leaves in the light is less examined, although they provide unique opportunities for the study of the interaction of CK and the photosynthetic apparatus. … http://webhome.auburn.edu/~amr0008/Zwack%20and%20Rashotte%202413.pdf
WebFeb 17, 2024 · Heat-induced leaf senescence may be related to protein hydrolysis into amino acids due to increased protease enzyme activities. Protease inhibitors may delay heat-induced leaf senescence and improve stay-green qualities in cool-season, perennial plants that are sensitive to high temperatures. The objectives of this study included …
WebMay 1, 2004 · It has been shown that controlling the expression of ipt, a gene encoding isopentenyltransferase, catalyzing the rate limiting step in cytokinin biosynthesis, with … on what occasions do people give others giftsWebJul 6, 2024 · Cytokinins (CKs) regulate numerous plant developmental processes, including photosynthesis and leaf senescence. Isopentenyltransferase (IPT) is a rate-limiting … iot solutions singaporeWebing senescence, while transcripts of cytokinin degrading enzymes become more abundant.14,15 This suggests that cytokinin may delay leaf senescence not only as a … iot south boundWebOct 6, 2016 · Inhibition of leaf senescence by autoregulated production of cytokinin. Science. 1995 Dec 22; 270 (5244):1986–1988. [Google Scholar ... [PMC free article] [Google Scholar] Hanfrey C, Fife M, Buchanan-Wollaston V. Leaf senescence in Brassica napus: expression of genes encoding pathogenesis-related proteins. Plant Mol Biol. 1996 ... iots stock newsWebOct 13, 2024 · AtCKX3 modulates the cytokinin contents during leaf senescence. CKs have been shown to retard leaf senescence (Gan and Amasino 1995). We … on what one thing does acceleration dependWebApr 25, 2024 · However, it is still unclear how the delayed leaf senescence phenotype is associated with the enhanced cytokinin responses. In this study, we introduced a cytokinin receptor AHK3 knockout into the ... iot soracomWebApr 14, 2024 · Leaf senescence reduces the photosynthetic capacity of leaves, thus significantly affecting the growth, development, and yield formation of cotton. Melatonin … on what occasion her father use to make putao