Co-overexpression of AVP1, PP2A-C5, and AtCLCc in Arabidopsis thaliana greatly increases tolerance to salt and drought stresses

编号 040035905

推送时间 20220905

研究领域 森林培育 

年份 2022 

类型 期刊 

语种 中文

标题 Co-overexpression of AVP1, PP2A-C5, and AtCLCc in Arabidopsis thaliana greatly increases tolerance to salt and drought stresses

来源期刊 Environmental and Experimental Botany

期 第359期

发表时间 20220801

关键词 Chloride channel protein;  Drought stress;  Protein phosphatase 2A;  Pyrophosphatase;  Salt stress; 

摘要 Abiotic stresses such as salinity and drought impose a severe constraint on global food production, posing a serious challenge in agriculture. Stacking beneficial genes in transgenic crops will likely improve crop yield under abiotic stress conditions. Previous studies showed that individually overexpressing the Arabidopsis vacuolar H and the chloride channel protein gene alone could also improve drought tolerance. We hypothesized that co-overexpressing would combine the benefits of these three genes, leading to a further increase in salt tolerance in transgenic plants due to the potential synergism of these genes. Indeed, co-overexpression of these three genes in Arabidopsis significantly improved salt and drought tolerance under single as well as under combined salt and drought stresses. The co-overexpressing plants displayed robust growth and produced greater amount of biomass as well as viable seeds than wild-type and single gene overexpression plants under saline and drought conditions. This study demonstrates that successful co-overexpression of several well-chosen genes is an effective strategy to achieve greater abiotic stress tolerance and could potentially lead to higher crop yield in regions of the world with saline soil and low precipitation.

服务人员 孙小满

服务院士 尹伟伦

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