Universal stress protein in Malus sieversii confers enhanced drought tolerance

编号 040021101

推送时间 20191104

研究领域 森林培育 

年份 2019 

类型 期刊 

语种 英语

标题 Universal stress protein in Malus sieversii confers enhanced drought tolerance

来源期刊 Journal of Plant Research

期 第211期

发表时间 20190903

关键词 M.sieversii;  Transcriptome;  MsUspA;  Drought str; 

摘要 Drought is an important environmental factor that can severely affect plant growth and reproduction. Although many genes related to drought tolerance have been studied in economically important crops, very few genes have been functionally identified in Malus sieversii. In this study, we isolated a new gene based on throughput RNA sequencing analysis and constructed genetic expression vectors and transformed in Arabidopsis thaliana for functional verification. The results showed that MsUspA ectopic expression driven by constitutive (CaMV 35S) promoter gave rise to substantial improvements in ability of transgenic A. thaliana plants to survive under extreme drought conditions. Improved drought resistance mainly depends on more compact cellular structure, longer roots, strong resilience and low-level ROS. Molecular expression analysis showed that MsUspA may be involved in hormone and secondary metabolite synthesis regulation to improve drought resistance.

服务人员 孙小满

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