Gene Details:

• Gene ID: Zm00001eb047760
• Gene Symbol: ZmHSFA2 ZmHsf04 hsf24
• Gene Name: HEAT SHOCK FACTOR A2
• Genome: Zm-B73-REFERENCE-NAM-5.0
• Species: Zea mays

Functional Descriptions:

• We report here that maize HEAT SHOCK FACTOR A2 (ZmHSFA2) and HEAT SHOCK BINDING PROTEIN 2 (ZmHSBP2) physically interact with each other and antagonistically modulate expression of GALACTINOL SYNTHASE2 (ZmGOLS2) and raffinose biosynthesis in transformed maize protoplasts and Arabidopsis plants.
• We have identified a heat shock element (HSE) motif residing in the promoter of maize (Zea mays) ZmGOLS2 and demonstrated that overexpression of ZmGOLS2 in Arabidopsis (Arabidopsis thaliana) enhanced heat shock tolerance.
• Overexpression of ZmHSFA2 in Arabidopsis increased the expression of Arabidopsis AtGOLS1, AtGOLS2 and AtRS5 (RAFFINOSE SYNTHASE), increased the raffinose content in leaves and enhanced plant heat stress tolerance.
• ZmHSFA2 and ZmHSBP2 regulate raffinose biosynthesis and plant heat stress tolerance in maize.
• ZmHSFA2 upregulates the expression of the endogenous ZmGOLS2 and the Rluc controlled by the ZmGOLS2 promoter in maize protoplasts.

Function-related keywords:

• stress ,  tolerance ,  stress-tolerance ,  heat-tolerance ,  heat-stress ,  protoplasts

Literature:

• Maize HSFA2 and HSBP2 antagonistically modulate raffinose biosynthesis and heat tolerance in Arabidopsis.   DOI:  10.1111/tpj.14434 ;  PMID:  31180156

Related News:

• Plant J. | 西北农林科技大学赵天永组揭示玉米中棉子糖生物合成和热胁迫耐受性的调控机制

Gene Resources:

• NCBI ID: LOC100280736
• UniProt accessions: A0A060D206

Sequences: