OsALDH7,OsALDH7B6,ALDH7B7

2015-01-20 | Categories genes  | Tags seed development  endosperm  blast  seed  abiotic stress  oxidative 

• Information
  • Symbol: OsALDH7,OsALDH7B6,ALDH7B7
  • MSU: LOC_Os09g26880
  • RAPdb: Os09g0440300
• Publication
  • Mutation of OsALDH7 causes a yellow-colored endosperm associated with accumulation of oryzamutaic acid A in rice, 2012, Planta.
  • Modeling-dependent protein characterization of the rice aldehyde dehydrogenase ALDH superfamily reveals distinct functional and structural features, 2010, PLoS One.
  • Rice aldehyde dehydrogenase7 is needed for seed maturation and viability, 2009, Plant Physiol.
  • Molecular cloning and differential expression of an aldehyde dehydrogenase gene in rice leaves in response to infection by blast fungus, 2007, Biologia.
• Genbank accession number
  • AF323586
  • AK060757
  • AK119560
  • AF323586
  • AK060757
  • AK119560
  • AF323586
  • AK060757
  • AK119560
• Key message
  • These pigments started to accumulate in the late seed developmental stage, the time when OsALDH7 expression began to increase significantly
  • Interestingly, endosperms from the osaldh7 null mutants accumulated brown pigments during desiccation and storage
  • Using differential display RT-PCR and cDNA library screening, a full-length aldehyde dehydrogenase cDNA (ALDH7B7) was isolated from rice leaves infected by incompatible race of blast fungus Magnaporthe grisea
  • ALDH7B7 expression was induced by blast fungus infection, ultraviolet, mechanical wound in rice leaves and was not detected in untreated rice organs
  • The function of ALDH7B7 in the interaction process between blast fungus and rice is discussed
  • These results suggest that OsALDH7 is involved in removing various aldehydes formed by oxidative stress during seed desiccation
  • These data imply that OsALDH7 plays an important role in maintaining seed viability by detoxifying the aldehydes generated by lipid peroxidation
  • Here we reported a mutant with yellow-colored endosperm in rice, and showed that the yellow endosperm was caused by mutation of OsALDH7
  • Mutation of OsALDH7 causes a yellow-colored endosperm associated with accumulation of oryzamutaic acid A in rice
  • We obtained T-DNA insertional mutants in OsALDH7, which is remarkably inducible by oxidative and abiotic stresses
  • OsALDH7 is expressed in all tissues detected, with the highest level in mature seeds
• Connection

Prev     Next