Oryzalexin S biosynthesis (Oryza sativa)

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1-5Diphosphatesyn-copalyl diphosphateMomilactone Biosynthesisstemar-13-eneoryzalexin SLOC_Os11g28530 (KS8/DTC2/stemar-13-ene synthase)EC:


In rice diterpenoid phytoalexins are produced in response to exogenously applied elicitors. Oryzalexin S is one of those phytoalexin.

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  1. Nemoto T, Cho EM, Okada A, Okada K, Otomo K, Kanno Y, Toyomasu T, Mitsuhashi W, Sassa T, Minami E, Shibuya N, Nishiyama M, Nojiri H, Yamane H; ''Stemar-13-ene synthase, a diterpene cyclase involved in the biosynthesis of the phytoalexin oryzalexin S in rice.''; FEBS Lett, 2004 PubMed Europe PMC
  2. Mohan RS, Yee NK, Coates RM, Ren YY, Stamenkovic P, Mendez I, West CA; ''Biosynthesis of cyclic diterpene hydrocarbons in rice cell suspensions: conversion of 9,10-syn-labda-8(17),13-dienyl diphosphate to 9beta-pimara-7,15-diene and stemar-13-ene.''; Arch Biochem Biophys, 1996 PubMed Europe PMC
  3. Toyomasu T; ''Recent advances regarding diterpene cyclase genes in higher plants and fungi.''; Biosci Biotechnol Biochem, 2008 PubMed Europe PMC
  4. Otomo K, Kenmoku H, Oikawa H, König WA, Toshima H, Mitsuhashi W, Yamane H, Sassa T, Toyomasu T; ''Biological functions of ent- and syn-copalyl diphosphate synthases in rice: key enzymes for the branch point of gibberellin and phytoalexin biosynthesis.''; Plant J, 2004 PubMed Europe PMC
  5. Nemoto T, Okada A, Okada K, Shibuya N, Toyomasu T, Nojiri H, Yamane H; ''Promoter analysis of the rice stemar-13-ene synthase gene OsDTC2, which is involved in the biosynthesis of the phytoalexin oryzalexin S.''; Biochim Biophys Acta, 2007 PubMed Europe PMC


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107217view14:31, 17 September 2019MaintBotChEBI identifier normalization
106911view13:38, 17 September 2019MaintBotHMDB identifier normalization
93099view15:52, 28 July 2017DeSlChanged Pubchem Substance ID to ChEBI
70141view20:58, 12 July 2013MaintBotupdated to 2013 schema
68774view16:29, 7 July 2013EgonwAdded an identifier from HMDB for oryzakexin S.
68773view16:25, 7 July 2013EgonwFixed "EC number" and a PubChem-compound data sources.
48992view22:56, 2 July 2012PjaiswalModified categories
48636view22:07, 7 June 2012PjaiswalSpecify description
48609view20:30, 6 June 2012PjaiswalOntology Term : 'plant cell' added !
48608view20:30, 6 June 2012PjaiswalOntology Term : 'diterpenoid biosynthetic pathway' added !
48607view20:28, 6 June 2012Pjaiswaladded description and diphosphate metabolite
48606view20:23, 6 June 2012PjaiswalModified description
48605view20:12, 6 June 2012Pjaiswaltext box size changed and box alignments changed
48604view20:11, 6 June 2012PjaiswalNew pathway

External references


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NameTypeDatabase referenceComment
DiphosphateMetaboliteCHEBI:18361 (ChEBI)
EC: (Enzyme Nomenclature) stemar-13-ene synthase
LOC_Os11g28530 (KS8/DTC2/stemar-13-ene synthase)GeneProductLOC_Os11g28530 (Gramene Rice) terpene synthase, putative, expressed//stemar-13-ene synthase activity//lyase activity//metabolic process//diterpene phytoalexin metabolic process//ent-kaurene synthase
Momilactone BiosynthesisPathwayWP2209 (WikiPathways)
oryzalexin SMetaboliteHMDB0039687 (HMDB)
stemar-13-eneMetaboliteCHEBI:50069 (ChEBI)
syn-copalyl diphosphateMetaboliteCHEBI:29739 (ChEBI)

Annotated Interactions

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