LOG

2015-01-20 | Categories genes  | Tags shoot  meristem  cytokinin 

• Information
  • Symbol: LOG
  • MSU: LOC_Os01g40630
  • RAPdb: Os01g0588900
• Publication
  • Direct control of shoot meristem activity by a cytokinin-activating enzyme, 2007, Nature.
• Genbank accession number
  • AK071695
• Key message
  • The LONELY GUY (LOG) gene of rice is required to maintain meristem activity and its loss of function causes premature termination of the shoot meristem
  • LOG messenger RNA is specifically localized in shoot meristem tips, indicating the activation of cytokinins in a specific developmental domain
  • LOG encodes a novel cytokinin-activating enzyme that works in the final step of bioactive cytokinin synthesis
  • Revising the long-held idea of multistep reactions, LOG directly converts inactive cytokinin nucleotides to the free-base forms, which are biologically active, by its cytokinin-specific phosphoribohydrolase activity
• Connection
  • LOG, RGN1, RGN1 controls grain number and shapes panicle architecture in rice, We demonstrated that RGN1 controls lateral grain formation by regulation of LONELY GUY (LOG) expression, thus controlling grain number and shaping panicle architecture
  • LOG, OsDES1, Mutation of DEFECTIVE EMBRYO SAC1 results in a low seed-setting rate in rice by regulating embryo sac development., OsDES1 interacts with LONELY GUY (LOG), a cytokinin-activating enzyme that acts in the final step of cytokinin synthesis; mutation of LOG led to defective female reproductive organ development

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