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Cytokinin-activating enzyme

WebRegulation of individual enzymes in cytokinin metabolism. Cytokinin degradation seems to be a very important tool for regulation of the active cytokinin “pool” in plant cells. … WebJan 8, 2013 · The phytohormone cytokinin (CK) positively regulates the activity and function of the shoot apical meristem (SAM), which is a major parameter determining seed production. ... T Kuroha, et al., Functional analyses of LONELY GUY cytokinin-activating enzymes reveal the importance of the direct activation pathway in Arabidopsis. Plant …

Structural insight into molecular mechanism of cytokinin activating ...

WebCytokinins impact numerous aspects of plant growth and development. This study reports that constitutive ectopic overexpression of a rice cytokinin-activation enzyme-like gene, OsLOGL5, significantly reduced primary root growth, tiller number, and yield. Conversely, mutations at the 3'-end of OsLOGL5 CDS resulted in normal rice plant morphology ... WebOct 4, 2024 · Nitrogen-dependent IPT expression accumulates iP- and tZ-type cytokinin species in the roots and shoots (Takei et al., 2004a, b) and activates cytokinin signaling (Taniguchi et al., 1998). In addition to … hotel heat and air units https://timelessportraits.net

A cytokinin-activation enzyme-like gene improves grain yield …

WebApr 1, 2024 · A conserved PGGxGTxxE motif misleads the cytokinin (CK) converting LONELY GUY enzymes to be wrongly annotated as lysine decarboxylases (LDCs). However, so far PGGxGTxxE motif-containing LDCs do not show any LDC activity. ... Direct control of shoot meristem activity by a cytokinin-activating enzyme. Nature, 445 … WebJan 29, 2024 · CvarLOG1 expressed mainly in the lag and log phases of growth and was confirmed to be a cytokinin-activating enzyme. Overexpression of CvarLOG1 in Chlorella led to extended life in culture by almost 10-20 days, creating a "stay-green" phenotype. In the transformed alga, the cell cycle was lengthened due to delayed entry into the G2/M … WebCytokinin and NIN form a feedforward loop in the root cortex, with cytokinin signalling activating NIN expression , ... The nitrogenase enzyme complex in rhizobia converts N 2 into ammonia that is released from the bacteroid via diffusion or unknown channels. The H+-ATPases on the symbiosome membrane create an acidic peribacteroid space, which ... pub in dawlish warren

The Role of Cytokines in the Body - Verywell Health

Category:Direct control of shoot meristem activity by a cytokinin

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Cytokinin-activating enzyme

Cytokinin biosynthesis and transport for systemic …

WebFeb 8, 2007 · The enzyme, encoded by the LOG gene, catalyses the final step of bioactive cytokinin synthesis by its cytokinin-specific … WebMar 1, 2007 · Cytokinin is synthesised from cytokinin-nucleotides produced by phosphate-isopentenyltransferases and two cytochrome P450 monooxygenases entitled CYP735A1 …

Cytokinin-activating enzyme

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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 LONELYGUY (LOG) gene encoding a cytokinin activating enzyme acts downstream of IPTs and produces the biologically active cytokinin (Kurakawa et al., 2007). In rice, log mutants exhibit reduced size of the SAM, small panicles, and premature termination of floral meristems (Kurakawa et al., 2007; Matsuoka et al., 1993).

WebJun 1, 2024 · The levels of active cytokinins can be modulated via irreversible cleavage by CYTOKININ OXIDASE (CKX) enzymes 6,7 or through conjugation to glucose by … WebFeb 8, 2007 · It has been assumed that the phytohormone cytokinin has a positive role in shoot meristem function. A severe reduction in the size of meristems in a mutant that …

WebThe conversion of the iP nucleotides to the tZ nucleotide is catalyzed by cytochrome P450 mono-oxygenases (CYP735A) and the production of active forms of cytokinin is catalyzed by the LONELY GUY (LOG) cytokinin-activating enzymes (Hirose et al. 2008).

WebApr 26, 2024 · Cytokinin oxidases/dehydrogenases (CKX) are involved in the regulation of cytokinin-dependent processes and are important in controlling endogenous …

WebJan 29, 2024 · Cytokinins are a class of adenine-derived small-molecule phytohormones that play a vital role in many facets of plant growth and development, such as cell division, cell growth, and differentiation … pub in cropwell butlerWebFeb 27, 2024 · Cytokinin binding to the CHASE domain results in activation of the cytosolic histidine-kinase domain and autophosphorylation on the conserved His residue, and this is followed by transfer of the phosphate group to a conserved Asp within the receiver domain (Inoue et al., 2001; Suzuki et al., 2001; Ueguchi et al., 2001; Yamada et … pub in crestview hills kyWebSep 8, 2024 · LOGs are a new cytokinin-activating enzyme with a conserved lysine decarboxylase-binding domain in all the proteins expressed by LOGs . Through its cytokinin-specific phosphohydrolase activity, LOGs directly convert the inactive cytokinin ribotides into a biologically active free base form [ 8 ]. pub in cublingtonWebSep 22, 2009 · Role of cytokinin in patterning the shoot stem cell niche. (A) Regulatory network described by Gordon et al. ().Ck is cytokinin; blunted lines and black arrows indicate repression and activation, respectively, and the white arrow represents the maintenance signal induced by WUS.(B) Speculative model of how cytokinin signaling … hotel heating hangerWebDec 23, 2024 · This study reports that constitutive ectopic overexpression of a rice cytokinin-activation enzyme-like gene, OsLOGL5, significantly reduced primary root growth, tiller number, and yield. Conversely, mutations at the 3′-end of OsLOGL5 CDS resulted in normal rice plant morphology but with increased grain yield under well … hotel heated swimming pool near meWebJun 17, 2013 · A cytokinin-activating enzyme induces de novo homeotic tubers in tomato TLOG1 signaling abolishes apical dominance without disrupting polar … hotel headboard designsWebJun 6, 2013 · A cytokinin-activating enzyme induces de novo homeotic tubers in tomato • TLOG1 signaling abolishes apical dominance without disrupting polar auxin transport • miR156 regulates tuber-forming … hotel heater and air conditioner in one