Cytokinin inhibition of leaf senescence
WebApr 14, 2024 · Leaf senescence reduces the photosynthetic capacity of leaves, thus significantly affecting the growth, development, and yield formation of cotton. Melatonin (MT) is a multipotent substance proven to delay leaf senescence. However, its potential mechanism in delaying leaf senescence induced by abiotic stress remains unclear. This … WebDec 22, 1995 · Senescence-retarded leaves exhibit a prolonged, photosynthetically active life-span. This result demonstrates that endogenously produced cytokinin can …
Cytokinin inhibition of leaf senescence
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WebJun 1, 2024 · Cytokinins promote cell division and increase cell expansion during the proliferation and expansion stages of leaf cell development, respectively. During leaf … WebDec 22, 1995 · Inhibition of leaf senescence by autoregulated production of cytokinin Controlling expression of IPT, a gene encoding isopentenyltransferase (the enzyme that …
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. 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 …
WebApr 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 ... 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 …
WebCytokinins help to maintain the plant cell and expression of cytokinin biosynthesis genes late in development prevents leaf senescence. [3] A withdrawal of or inability of the cell to perceive cytokinin may cause it to …
WebJul 6, 2024 · Cytokinins (CKs) regulate numerous plant developmental processes, including photosynthesis and leaf senescence. Isopentenyltransferase (IPT) is a rate-limiting enzyme in the CK-biosynthesis pathway. We overexpressed ipt under tissue-specific promoters to study the long-range effect of CK on the functioning of tomato source leaves. northbridge kebabs waWebThe cytokinin zeatin is named after the genus of corn, Zea. Cytokinins ( CK) are a class of plant hormones that promote cell division, or cytokinesis, in plant roots and shoots. They are involved primarily in cell growth and differentiation, but also affect apical dominance, axillary bud growth, and leaf senescence. how to report a fallWebCarabelli 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, … northbridge lgahttp://webhome.auburn.edu/~amr0008/Zwack%20and%20Rashotte%202413.pdf how to report a fake profile on instagramWebJun 16, 2024 · Elevated CO 2 usually leads to the accumulation of sugars and the decrease of nitrogen content in plant leaves, resulting in the imbalance of C/N ratio in mature leaves, which is also one of the main factors causing premature leaf senescence (Wingler et al. 2004; Agüera and De la Haba 2024 ). northbridge ma curtain factory outletWebInhibition of Leaf Senescence by Autoregulated Production of Cytokinin Susheng Gan and Richard M. Amasino* Controlling expression of IPT, a gene encoding isopentenyl … how to report a fallen treeWebJan 9, 2006 · Cytokinins are plant hormones with profound roles in growth and development, including control of leaf longevity. Although the cytokinin signal is known to be … how to report a fake marriage for green card