Gene Details:

• Gene ID:
• Gene Symbol: GhAPX1
• Gene Name: cytosolic ascorbate peroxidase 1
• Genome: TM1_NBI
• Species: Gossypium hirsutum

Functional Descriptions:

• Here, a cotton (Gossypium hirsutum) cytosolic APX1 (GhAPX1) was identified to be highly accumulated during cotton fibre elongation by proteomic analysis.
• Quantitative real-time polymerase chain reaction (PCR) analyses showed that GhAPX1 was highly expressed in wild-type 5-d postanthesis fibres with much lower transcript levels in the fuzzless-lintless mutant ovules.
• Treating in vitro cultured wild-type cotton ovules with exogenous H2O2 or ethylene induced the expression of GhAPX1 and hence increased total APX activity proportionally, followed by extended fibre cell elongation.
• These data suggest that GhAPX1 expression is upregulated in response to an increase in cellular H2O2 and ethylene. GhAPX1 encodes a functional enzyme that is involved in hydrogen peroxide homeostasis during cotton fibre development.

Function-related keywords:

• development ,  ethylene ,  homeostasis ,  cell-elongation ,  ethylene-response ,  ethylene-homeostasis ,  h2o2

Literature:

• A cotton ascorbate peroxidase is involved in hydrogen peroxide homeostasis during fibre cell development.   DOI:  10.1111/j.1469-8137.2007.02120.x ;  PMID:  17635221

Related News:

Gene Resources:

• NCBI ID: EF432582.1
• UniProt accessions:

Orthologs:

Sequences: