Cytokinin biosynthesis and regulation

Author: ontt

August undefined, 2024

WebSince 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, the regulation of apical dominance and the transmission of nutritional signals. WebMay 14, 2004 · Auxin Regulation of Cytokinin Biosynthesis Is Regulated via Auxin Perception. Our observation that addition of auxin rapidly represses cytokinin …

Lateral Root versus Nodule: The Auxin-Cytokinin Interplay

WebThe upregulation by nitrate did not require de novo protein synthesis. We also examined the expression of two genes for tRNA isopentenyltransferases, AtIPT2 and AtIPT9, which can also be involved in cytokinin biosynthesis. They were expressed ubiquitously, with highest expression in proliferating tissues. WebThe effects of auxin and cytokinin on the mRNA of every AtIPT in roots were examined by RT-PCR. AtIPT5 and AtIPT7 were upregulated by auxin, suggesting an auxin regulation of cytokinin biosynthesis. All the genes for ATP/ADP isopentenyltransferases that were detectable in roots were downregulated by cytokinin, indicating a feedback regulation. shufords boone nc

Cytokinin Synthesis, Signaling, and Function—Advances

WebJan 1, 2024 · In particular, most of the genes participating in cytokinin biosynthesis and signaling were down-regulated (Figs 4f, S1). LOG1, which encodes a cytokinin riboside 5′-monophosphate … WebMolecular Regulation and Evolution of Cytokinin Signaling in Plant Abiotic Stresses ... Here, we summarize the molecular mechanisms on the biosynthesis, metabolism, … 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... shuford\u0027s site

Q&A: How do plants respond to cytokinins and what …

Cytokinin action in response to abiotic and biotic stresses in …

WebSep 14, 2007 · Cytokinins are a group of mobile phytohormones that play a critical role in plant growth and development by regulating leaf senescence ( Gan and Amasino, 1995; … WebNov 11, 2024 · We found cytokinin biosynthesis is a central integrator, balancing nitrate signalling with symbiotic acquired nitrogen. ... N., Kojima, M. & Sakakibara, H. Nitrogen-dependent regulation of de novo ... the otoole chroniclesWebMar 26, 2024 · Cytokinins are plant hormones that typically block or delay leaf senescence. We profiled 34 different cytokinins/cytokinin metabolites (including precursors, conjugates and degradation products) in leaves of a free-growing mature aspen (Populus tremula) before and after the initiation of autumnal senescence over three consecutive years. The … shuford stadium catawba college

"WebFeb 10, 2024 · Cytokinin double-receptor mutants were more susceptible to B. cinerea infection, whereas an exogenous CK treatment enhanced the expression levels of … " - Cytokinin biosynthesis and regulation

Cytokinin biosynthesis and regulation

WebApr 11, 2024 · Cytokinin has a positive role in the HSR, ... but also regulate hormone biosynthesis or metabolism through feedback regulation. Stress tolerance is typically associated with trade-offs between growth and stress. Generally, stress-tolerant plants have slower growth rates and lower yields. Plants must balance growth and defense …

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WebMar 30, 2006 · Regulation of cytokinin biosynthesis in higher plants. The steady-state level of cytokinin nucleobases, which is responsible for cytokinin activity, appears to be tightly controlled by the expression of key genes for … WebThe hormones auxin and cytokinin are key regulators of plant growth and development. As they are active at minute concentrations and regulate dynamic processes, cell and tissue levels of the hormones are finely controlled developmentally, diurnally, and in response to environmental variables.

WebGhNAC83 inhibits corm dormancy release by regulating ABA signaling and cytokinin biosynthesis inGladiolus hybridus . × Close Log In. Log in with Facebook Log in with Google. or. Email. Password. Remember me on this computer. or reset password. Enter the email address you signed up with and we'll email you a reset link. ... WebGhNAC83 inhibits corm dormancy release by regulating ABA signaling and cytokinin biosynthesis inGladiolus hybridus . × Close Log In. Log in with Facebook Log in with …

WebThe downregulation of cytokinin biosynthesis genes in the presence of high nitrate was not observed in nlp1 and nlp4 (NIN-Like proteins) mutants, defective in the NLP transcription factors, which mediate nitrate-dependent regulation of gene expression. Moreover, these mutants did not show nitrate-dependent decrease in iP content. WebRegulation of cytokinin biosynthesis, compartmentalization and translocation Naoya Hirose 1, *, Kentaro Takei 1 , Takeshi Kuroha 1 , Tomoe Kamada-Nobusada 1 , Hiroaki Hayashi 2,†

WebFeb 10, 2024 · Cytokinins (CKs) can modulate plant immunity to various pathogens, but how CKs are involved in plant defense responses to the necrotrophic pathogen Botrytis cinerea is still unknown. Here, we found …

WebApr 26, 2024 · Over the last decade, remarkable progress has been made in our understanding the phytohormones, cytokinin’s (CKs) biosynthesis, perception, and signalling pathways. Additionally, it became apparent that interfering with any of these steps has a significant effect on all stages of plant growth and development. As a result of their … shuford technologyWebApr 9, 2024 · This implies that PbrMYB132 plays a dual role in the regulation of lignin and cellulose biosynthesis in stone cells. In SCW regulation, AtMYB103 acts as a regulator of cellulose biosynthesis and also binds to the promoter of FH5 to promote lignin biosynthesis (Ohman et al., 2013). shuford tire boone ncWebcytokinin metabolism and signal transduction have identi- environmental factors. In this article, recent discoveries tied a series of genes involved in these processes and are outlined about cytokinin metabolism and translocation, a model for the regulation of developmental processes by and the potential roles for cytokinins as local and long theoto ponta grossaWebApr 8, 2024 · As one of the classic phytohormones, cytokinins, which promote cell division and regulate nutrient transport, are primarily synthesized in plant root tips. In recent years, increasing studies have found that cytokinins have different effects on growth and development of plant roots through signal transduction pathways or related receptors. the otori seriesWebAbstract. 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 … theotor wowWebCytokinins (CKs) play a crucial role in various phases of plant growth and development, but the basic molecular mechanisms of their biosynthesis and signal transduction only … the otoriWebOct 6, 2024 · Cytokinins are a class of phytohormone that participate in the regulation of plant growth, physiological activities, and yield. Cytokinins also play a key role in … shufords bbq signal mountain