Gene Details:

• Gene ID:
• Gene Symbol: GhMT3a
• Gene Name: Metallothionein-like
• Genome: TM1_NBI
• Species: Gossypium hirsutum

Functional Descriptions:

• Cotton metallothionein GhMT3a, a reactive oxygen species scavenger, increased tolerance against abiotic stress in transgenic tobacco and yeast.
• Northern blot analysis indicated that mRNA accumulation of GhMT3a was up-regulated not only by high salinity, drought, and low temperature stresses, but also by heavy metal ions, abscisic acid (ABA), ethylene, and reactive oxygen species (ROS) in cotton seedlings.
• Transgenic tobacco (Nicotiana tabacum) plants overexpressing GhMT3a showed increased tolerance against abiotic stresses compared with wild-type plants.
• According to in vitro assay, recombinant GhMT3a protein showed an ability to bind metal ions and scavenge ROS. Transgenic yeast overexpressing GhMT3a also showed higher tolerance against ROS stresses.
• These results indicated that GhMT3a could function as an effective ROS scavenger and its expression could be regulated by abiotic stresses through ROS signalling.

Function-related keywords:

• seedlings ,  temperature ,  drought ,  stress ,  drought-stress ,  salinity ,  tolerance ,  abiotic-stress ,  aba ,  ethylene ,  drought-tolerance ,  stress-tolerance ,  salinity-stress ,  abscisic-acid ,  reactive-oxygen-species ,  heavy-metal ,  protein

Literature:

• Cotton metallothionein GhMT3a, a reactive oxygen species scavenger, increased tolerance against abiotic stress in transgenic tobacco and yeast.   DOI:  10.1093/jxb/ern291 ;  PMID:  19033550

Related News:

Gene Resources:

• NCBI ID: AY857933.1
• UniProt accessions: Q5I3E2

Orthologs:

Sequences: