OsCesA7

2022-11-15 | Categories genes  | Tags cellulose  transcription factor  lignin  lignin biosynthesis  vascular bundle  growth  culm  zinc  plant growth 

• Information
  • Symbol: OsCesA7
  • MSU: LOC_Os10g32980
  • RAPdb: Os10g0467800
• PSP score
  • LOC_Os10g32980.1: 0.3602
• PLAAC score
  • LOC_Os10g32980.1: 0
• pLDDT score
  • 75.69
• Protein Structure from AlphaFold and UniProt
  • 
• Publication
  • Three Distinct Rice Cellulose Synthase Catalytic Subunit Genes Required for Cellulose Synthesis in the Secondary Wall, 2003, Plant Physiol.
  • The expression of a rice secondary wall-specific cellulose synthase gene, OsCesA7, is directly regulated by a rice transcription factor, OsMYB58/63., 2015, Planta.
  • A Missense Mutation in the Zinc Finger Domain of OsCESA7 Deleteriously Affects Cellulose Biosynthesis and Plant Growth in Rice., 2016, PLoS One.
  • Two Complementary Mechanisms Underpin Cell Wall Patterning during Xylem Vessel Development., 2017, Plant Cell.
• Genbank accession number
  • AK072259
• Key message
  • We show here that the genes responsible for three distinct brittle mutations of rice, induced by the insertion of the endogenous retrotransposon Tos17, correspond to CesA (cellulose synthase catalytic subunit) genes, OsCesA4, OsCesA7 and OsCesA9
  • A rice MYB transcription factor, OsMYB58/63, was found to directly upregulate the expression of a rice secondary wall-specific cellulose synthase gene, cellulose synthase A7 ( OsCesA7 ); in contrast, the Arabidopsis putative orthologs AtMYB58 and AtMYB63 have been shown to specifically activate lignin biosynthesis
  • The OsCESA7 gene is expressed predominantly in the culm at the mature stage, particularly in mechanical tissues such as vascular bundles and sclerenchyma cells, consistent with the brittle phenotype in the culm
  • A Missense Mutation in the Zinc Finger Domain of OsCESA7 Deleteriously Affects Cellulose Biosynthesis and Plant Growth in Rice.
  • These results indicate that OsCESA7 plays an important role in cellulose biosynthesis and plant growth
  • Map-based gene cloning and a complementation assay showed that phenotypes of the S1-24 mutant were caused by a recessive point mutation in the OsCESA7 gene, which encodes cellulose synthase A subunit 7
• Connection
  • OsCesA4~Bc7~bc11, OsCesA7, Three Distinct Rice Cellulose Synthase Catalytic Subunit Genes Required for Cellulose Synthesis in the Secondary Wall, We show here that the genes responsible for three distinct brittle mutations of rice, induced by the insertion of the endogenous retrotransposon Tos17, correspond to CesA (cellulose synthase catalytic subunit) genes, OsCesA4, OsCesA7 and OsCesA9
  • Bc6~OsCesA9, OsCesA7, Three Distinct Rice Cellulose Synthase Catalytic Subunit Genes Required for Cellulose Synthesis in the Secondary Wall, We show here that the genes responsible for three distinct brittle mutations of rice, induced by the insertion of the endogenous retrotransposon Tos17, correspond to CesA (cellulose synthase catalytic subunit) genes, OsCesA4, OsCesA7 and OsCesA9
  • OsCesA7, OsMYB103L~CEF1, CEF1/OsMYB103L is involved in GA-mediated regulation of secondary wall biosynthesis in rice, OsMYB103L mediates cellulose biosynthesis and secondary walls formation mainly through directly binding the CESA4, CESA7, CESA9 and BC1 promoters and regulating their expression

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