Cytokinin signaling: two-components and more

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August undefined, 2024

WebThe canonical two-component transcription circuitry involves His kinases that perceive cytokinin and initiate signaling, as well as His-to-Asp phosphorelay proteins that transfer phosphoryl groups to response regulators, transcriptional activators, or repressors. WebJan 3, 2005 · The authors use several lines of observation and reasoning to conclude that (1) SPY acts directly to promote cytokinin responses, (2) GA acts through SPY to suppress cytokinin responses, and (3) SPY regulates GA signaling and cytokinin responses via different mechanisms.

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WebJan 9, 2024 · Cytokinin signaling Once cytokinins are synthesized, in order to deliver their message, they need to be perceived by the cell. Cytokinin perception occurs via specific transmembrane proteins of the ARABIDOPSIS HISTIDINE KINASE gene family ( AHK2, AHK3, AHK4) ( Figure 1 C). WebJun 1, 2024 · The main response genes involved in cytokinin signaling, type-B ARRs (ARR1, 10, and 12), directly bind and activate the homeodomain transcription factor WUSCHEL (WUS), which positively governs ... shark porthole suncatcher

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WebCytokinin signaling, as well as all other known eukaryotic two-component-like signaling, involves a more elaborate version of the two-component system known as a multicomponent phosphorelay (Fig. 2).This involves hybrid kinases containing both histidine kinase (HK) and receiver domains in a single protein, His-containing phosphotransfer … WebOct 9, 2007 · Cytokinin signaling is mediated by a multistep two-component circuitry through histidine (His) and aspartate (Asp) phosphorelay [see the canonical Cytokinin Signaling Pathway ( http://stke.sciencemag.org/cgi/cm/stkecm;CMP_9724) for details about multistep, two-component relay in cytokinin signaling]. WebCytokinin receptors (CRs) are hybrid-type histidine kinases, membrane proteins with a cytokinin-binding extracellular domain. CRs initiate and propagate cytokinin signaling by means of phosphorylation and phosphotransfer to downstream proteins. In legumes, … shark portable vacuum battery

Cytokinin Signaling in Plants SpringerLink

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Webhave revealed that cytokinin regulates these signaling componentsthroughavarietyofmechanisms,including modulating transcription, controlling phosphorelay and regulating protein localization and stability. Genetic … WebFeb 8, 2014 · The cytokinins play essential roles in the development and environmental responses of higher plants. Cytokinin signaling leads to the phosphorylation-dependent activation of two classes of Arabidopsis response regulators (RRs): the type-B RR (RRB) transcriptional activators that promote the expression of cytokinin response genes and … shark portable steam pocket cleaner sc630wWebFeb 27, 2024 · Cytokinin levels in plants are regulated by biosynthesis and inactivation pathways. Cytokini … The phytohormone cytokinin plays diverse roles in plant development, influencing many agriculturally important processes, including growth, nutrient responses and the response to biotic and abiotic stresses. shark portable vacuum parts

"WebSep 22, 2009 · We demonstrate that cytokinin signaling activates WUS expression through both CLV-dependent and CLV-independent pathways. We develop a computational model of cytokinin signaling which shows that feedback between cytokinin response … " - Cytokinin signaling: two-components and more

Cytokinin signaling: two-components and more

Multiple feedback loops through cytokinin signaling …

WebFeb 1, 2008 · We also describe the mechanisms by which cytokinin regulates these signaling components and discuss their roles in cytokinin-dependent processes, including shoot and root development, vascular differentiation, leaf senescence and cytokinin …

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WebCharacterization of two-component elements in Arabidopsis, maize and rice shows that cytokinin responses are mediated via partially redundant two-component protein families: histidine kinases, histidine phosphotransfer proteins and response regulators, as well as … WebFeb 1, 2008 · Cytokinin signaling and two-component elements in plants Cytokinins were discovered for their ability to promote cell division in tobacco tissue culture [1]. Since their discovery, these N 6 -substituted adenine-based molecules have been associated …

WebJul 21, 2009 · Cytokinin is a critical growth regulator for various aspects of plant growth and development. In Arabidopsis, cytokinin signaling is mediated by a two-component system-based phosphorelay... WebJan 5, 2024 · Authors: Mahboobeh Azarakhsh and Maria A. Lebedeva. Journal of Plant Growth Regulation (2024) Abstract: "Nodules are formed as a result of symbiosis with nitrogen-fixing bacteria on the roots of legume plants. Symbiotic nodule development shares common developmental processes with lateral roots...

WebApr 11, 2024 · Bias-Free Language. The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. WebSupporting: 4, Mentioning: 89 - Auxin produced by an active primary shoot apex is transported down the main stem and inhibits the growth of the axillary buds below it, contributing to apical dominance. Here we use Arabidopsis thaliana cytokinin (CK) biosynthetic and signalling mutants to probe the role of CK in this process. It is well …

WebOct 5, 2007 · Model for the cytokinin multistep two-component circuitry through histidine (H), and aspartate (D) phosphorelay, involving histidine-kinase receptors (HK), phosphotransfer proteins (HPT), a “pseudo–HPT” with an asparagine (N) instead of the …

WebFeb 1, 2010 · The two-component signaling systems (TCSs), which mediate the histidine-aspartate signaling, control diverse biological processes of many organisms, including cell division, cell growth and proliferation, and responses to … popular now on bing news 2001WebThe canonical two-component transcription circuitry involves His kinases that perceive cytokinin and initiate signaling, as well as His-to-Asp phosphorelay proteins that transfer phosphoryl groups to response regulators, transcriptional activators, or repressors. … shark portable vacuum cleaners amazonWebMay 3, 2012 · The canonical two-component transcription circuitry involves His kinases that perceive cytokinin and initiate signaling, as well as His-to-Asp phosphorelay proteins that transfer phosphoryl groups to response regulators, transcriptional activators, or repressors. popular now on bing news today top storiesWebOct 9, 2007 · Cytokinins are key regulators of a large number of processes in plant development, which is highly plastic and adaptive, and remarkably resilient and self-perpetuating. Cytokinin signaling involves a multistep two-component system, also … popular now on bingnfjfWebJan 15, 2024 · As central regulators of probably all aspects of plant life, complex signaling pathways of auxins and cytokinins are crucial for their general and specific functions. Therefore, analyzing their signaling … popular now on bing news topWebFeb 22, 2024 · The Two-Component Signaling pathway (TCS) is a modified version of the bacterial two-component system consisting of receptor histidine kinases, phosphotransfer proteins, and two classes of Response Regulators (RRs) [ 5, 6, 7, 8, 9 ]. shark portland maineWebMar 1, 2008 · Cytokinin signaling involves the coordinating roles of three major proteins including histidine kinase receptors (accepts the signal), histidine phosphotransfer proteins (transfers the signal) and... shark portable vacuum cordless