Application of grape VvHSF30 in regulation and control of basic salt stress resistance of plants

The invention relates to the technical field of biology, in particular to application of grape VvHSF30 to regulation and control of basic salt stress resistance of plants. VvHSF30 transcripts and activates the expression of a vacuolar transport vector ABCC3, so as to promote-HCO3 efflux, reduce-HCO3 accumulation, promote H < + > efflux and improve the pH of a root domain; the alkaline salt resistance is improved through the above ways. The bicarbonate root tolerance of transgenic plants can be enhanced by overexpressing the VvHSF30 in plants such as tobacco and arabidopsis thaliana. 本发明涉及生物技术领域，具体涉及葡萄VvHSF30在调控植物碱性盐胁迫抗性中的用途。VvHSF30转录激活液泡膜运输载体ABCC3表达，进而促进-HCO3外排，降低-HCO3积累，同时促进了H+外排，提高根域pH；通过以上途径提高碱性盐抗性。在烟草、拟南芥等植物中过量表达VvHSF30可以增强转基因植株的碳酸氢根耐受性。