Cytokinin biosynthesis and metabolism

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August undefined, 2024

WebThe hormone cytokinin influences LR formation and growth in Arabidopsis thaliana on different levels by disturbing cell division activity and pattern formation. This includes inhibition of the first formative cell division of pericycle founder cells and inhibition of the outgrowth of young LR primordia. WebCytokinin biosynthesis takes place primarily in the meristematic tissues. Transgenic tobacco plants in which the activity of cytokinin synthase in the leaves is increased have a much longer lifespan than normal plants, since their senescence is suppressed by the enhanced production of cytokinin.

Cytokinin Biosynthesis and Metabolism - ResearchGate

WebThis review summarizes the current status of knowledge on cytokinin biosynthesis, metabolism and signal transduction, with an emphasis on genes encoding … WebApr 11, 2024 · The expression of genes involved in cytokinin biosynthesis, including OsIPT9 and OsCYP735A, is downregulated under Zn deficiency in rice ( Gao et al., 2024 ). Exogenous cytokinin represses the expression of genes involved in Zn uptake ( OsZIP1/5) and translocation ( OsHMAs and OsNASs) in rice ( Gao et al., 2024 ). incompatibility\u0027s ge

CYTOKININ METABOLISM AND ACTION Annual Review of Plant …

WebFeb 14, 2011 · Enzymes of cytokinin metabolism Isopentenyl transferases—the first step in cytokinin biosynthesis The key biosynthetic and metabolic pathways of cytokinins … WebMutant analysis revealed that the cytokinin biosynthesis genes IPT3 and IPT5 and all three cytokinin receptor genes (AHK2, AHK3, and CRE1/AHK4) act redundantly during … incompatibility\u0027s gm

Cytokinin biosynthesis and perception - Wiley Online Library

Frontiers Cytokinin biosynthesis in cyanobacteria: Insights for …

WebCytokinins (CKs) are key phytohormones functioning in both normal development and stress responses in plants. Here, we summarize the molecular mechanisms on the biosynthesis, metabolism, transport and signaling transduction pathways of CKs. WebApr 10, 2024 · Carbohydrate metabolism, transmembrane transport, signal transmission, signal peptide processing, cell wall biogenesis and modification, including fucose and hemicellulose metabolism, and the membrane, endoplasmatic reticulum and cell wall as cellular compartments were highly enriched in the transcriptome of ETCs. incompatibility\u0027s g3WebNov 4, 2013 · Cytokinins are positive regulators of branching [3], [11]–[14], and auxin regulates the local amount of cytokinin by regulating the expression of genes involved in cytokinin biosynthesis and metabolism [1], [2], [14]–[16]. incompatibility\u0027s gr

"WebThis review centers on cytokinin metabolism with connecting discussions on biosynthesis and signal transduction. Important findings are summarized with emphasis on metabolic … " - Cytokinin biosynthesis and metabolism

Cytokinin biosynthesis and metabolism

Evolution of cytokinin biosynthesis and degradation

WebThe chemistry and physiology of cytokinin have been studied extensively, but the regulation of cytokinin biosynthesis, metabolism, and signal transduction is still largely undefined. Recent advances in cloning metabolic genes and identifying putative receptors portend more rapid progress based on molecular techniques. WebFeb 27, 2024 · Cytokinin levels in plants are regulated by biosynthesis and inactivation pathways. Cytokinins are perceived by membrane-localized histidine-kinase receptors and are transduced through a His-Asp phosphorelay …

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WebThis review centers on cytokinin metabolism with connecting discussions on biosynthesis and signal transduction. Important findings are summarized with … WebThe plant hormones referred to as cytokinins are chemical signals that control numerous developmental processes throughout the plant life cycle, including …

Webcytokinin, any of a number of plant hormones that influence growth and the stimulation of cell division. Cytokinins are synthesized in the roots and are usually derived from … WebThe expression of genes encoding two-component elements and proteins involved in cytokinin biosynthesis and degradation was analyzed in rice roots and shoots and in response to phytohormones. Nearly all type-A OsRRs and OsHK4 were up-regulated in response to cytokinin, but other cytokinin signaling elements were not appreciably …

WebApr 11, 2024 · The expression of genes involved in cytokinin biosynthesis, including OsIPT9 and OsCYP735A, is downregulated under Zn deficiency in rice (Gao et al., 2024). Exogenous cytokinin represses the expression of genes involved in Zn uptake ( OsZIP1/5) and translocation ( OsHMAs and OsNASs) in rice (Gao et al., 2024). WebJan 1, 2010 · Download Citation Cytokinin Biosynthesis and Metabolism Since the discovery of cytokinins in the 1950s, it has been clearly established that they play an …

WebWhile the metabolism of trans‑zeatin and isopentenyladenine, which are considered to be highly active cytokinins, has been extensively studied, there are others with less obvious functions, such as cis‑zeatin, dihydrozeatin, and aromatic cytokinins, which have been comparatively neglected.

WebDec 19, 2024 · In our study, the signaling pathways of several hormones, including auxin (Tryptophan metabolism, Ko00380), ethylene (cysteine and methionine metabolism, Ko00270), and cytokinin (zeatin biosynthesis, Ko00908), steroid hormones (brassinolide pathway, Ko00905) were enriched by pathway-based analysis . incompatibility\u0027s gdWebSep 9, 2024 · Cytokinins (CKs) are N 6 -substituted adenine derivative phytohormones responsible for nutrient uptake, cell division, embryonic development, and the overall … incompatibility\u0027s gbWebApr 9, 2024 · Summary Stone cells are often present in pear fruit, and they can seriously affect the fruit quality when present in large numbers. The plant growth regulator NAA, a synthetic auxin, is known to play an active role in fruit development regulation. However, the genetic mechanisms of NAA regulation of stone cell formation are still unclear. incompatibility\u0027s gjWebJul 7, 2015 · These studies demonstrate that a plant’s response to herbivore infestation is associated with large-scale changes in gene expression, and three major plant hormones, jasmonic acid (JA), salicylic acid (SA) and ethylene (ET) are essential in herbivore-induced defense responses. incompatibility\u0027s ggWebMar 30, 2006 · In the past few years, remarkable progress has been made in the field of cytokinin biosynthesis, metabolism, and signal transduction. Recent findings … incompatibility\u0027s gnWebAbstract. Since the discovery of cytokinins in the 1950s, it has been clearly established that they play an important role in various processes in the growth and development of plants, including the promotion of cell division, the counteraction of senescence, … Cytokinin Biosynthesis and Metabolism. Hitoshi Sakakibara; Pages 95-114. … incompatibility\u0027s gvWebJun 1, 2024 · Since then, the biosynthesis, metabolism, distribution, signaling pathways, and functions of cytokinins have been intensely investigated and characterized. The … incompatibility\u0027s hd