WebJan 9, 2024 · Cytokinin levels within a cell depend on their biosynthesis and catabolism (Figure 1A). The first step of cytokinin biosynthesis is catalyzed by enzymes encoded … 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. There are two types of cytokinins: adenine-type … See more The idea of specific substances required for cell division to occur in plants actually dates back to the German physiologist J. Wiesner, who, in 1892, proposed that initiation of cell division is evoked by endogenous … See more Cytokinins are involved in many plant processes, including cell division and shoot and root morphogenesis. They are known to regulate axillary bud growth and apical dominance. … See more Adenosine phosphate-isopentenyltransferase (IPT) catalyses the first reaction in the biosynthesis of isoprene cytokinins. It may use ATP, ADP, or AMP as substrates and … See more • Agrares Fertilizer with cytokinins • Lincoln T, Zeiger E (2010). "Ch. 21: Cytokinins: Regulators of Cell Division". Plant Physiology (5th … See more Cytokinin signaling in plants is mediated by a two-component phosphorelay. This pathway is initiated by cytokinin binding to a histidine kinase receptor in the endoplasmic reticulum membrane. This results in the autophosphorylation of the receptor, with the … See more Because cytokinins promote plant cell division and growth, they have been studied since the 1970s as potential agrochemicals, however they have yet to be widely adopted, probably due to the complex nature of their effects. One study found that applying … See more
Cytokinin - Wikipedia
WebNov 28, 2024 · Model for cytokinin biosynthesis in plants. CK biosynthesis starts by transferring an isopentenyl moiety from dimethylallyl diphosphate (DMAPP) to AMP/ … WebSep 14, 2007 · A current model of cytokinin biosynthesis and the two known activation pathways. iPRMP, iP riboside 5′-monophosphate; tZRTP, tZ riboside 5′-triphosphate; tZRDP, tZ riboside 5′-diphosphate; tZRMP, tZ riboside 5′-monophosphate; DZRMP, DZ riboside 5′-monophosphate; cZRMP, cZ riboside 5′-monophosphate; DZR, DZ riboside; … cillian murphy interviews 2010
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WebThe biosynthesis of aromatic cytokinins in planta, unlike isoprenoid cytokinins, is still unknown. To compare the final steps of biosynthesis pathways of aromatic and … WebJan 1, 2005 · A. Basic Scheme of Cytokinin Biosynthesis The first step in the biosynthesis of isoprenoid CKs is N‐prenylation of adenosine 5′‐phosphates (AMP, … Webbiosynthesis in plants, as plant genes controlling cytokinin biosynthesis have yet to be identified. Nevertheless, genes involved in cytokinin perception and genes encoding cytokinin metabolic enzymes have recently been cloned, providing useful tools for further molecular analyses. This review summarizes key findings on cytokinin biosynthesis ... cillian murphy interviews video