Late embryogenesis abundant (LEA) proteins accumulate in the late stage of plant seed development, and are upregulated in most plants during drought, cold, heat, or salinity stress. LEA proteins can be classified by a...Late embryogenesis abundant (LEA) proteins accumulate in the late stage of plant seed development, and are upregulated in most plants during drought, cold, heat, or salinity stress. LEA proteins can be classified by amino-acid sequence into seven groups. Dehydrins belong to LEA protein group Ⅱ. In previous studies, the maize KS type dehydrin ZmDHN13 increased the tolerance of transgenic tobacco to oxidative stress. In the present study, ZmDHN13 was identified under copper stress conditions, and the protein was then characterized using transgenic yeast and tobacco plants to investigate its functions. ZmDHN13 bound Cu2+. Its overexpression in transgenic tobacco conferred tolerance to copper stress by binding metals and reducing the accumulation of reactive oxygen species (ROS). Three conserved domains displayed a cooperative effect under copper stress conditions.展开更多
At present,the issues concerning agriculture,farmers and rural areas are increasingly prominent,and the demand of rural economic reform is increasing. In view of current development situation of rural areas,with refer...At present,the issues concerning agriculture,farmers and rural areas are increasingly prominent,and the demand of rural economic reform is increasing. In view of current development situation of rural areas,with reference to successful experience of Tangyue Village Model,this paper analyzed functions of rural stock cooperatives to agricultural development,farmers' income increase,and rural prosperity. Finally,it came up with feasible recommendations for rural reform and the issues concerning agriculture,farmers and rural areas.展开更多
基金supported by the National Natural Science Foundation of China (31701334)the Shandong Province Natural Science Foundation (ZR2016CQ34)
文摘Late embryogenesis abundant (LEA) proteins accumulate in the late stage of plant seed development, and are upregulated in most plants during drought, cold, heat, or salinity stress. LEA proteins can be classified by amino-acid sequence into seven groups. Dehydrins belong to LEA protein group Ⅱ. In previous studies, the maize KS type dehydrin ZmDHN13 increased the tolerance of transgenic tobacco to oxidative stress. In the present study, ZmDHN13 was identified under copper stress conditions, and the protein was then characterized using transgenic yeast and tobacco plants to investigate its functions. ZmDHN13 bound Cu2+. Its overexpression in transgenic tobacco conferred tolerance to copper stress by binding metals and reducing the accumulation of reactive oxygen species (ROS). Three conserved domains displayed a cooperative effect under copper stress conditions.
基金Supported by Scientific Research Foundation of Hunan Provincial Department of Education(17A233)
文摘At present,the issues concerning agriculture,farmers and rural areas are increasingly prominent,and the demand of rural economic reform is increasing. In view of current development situation of rural areas,with reference to successful experience of Tangyue Village Model,this paper analyzed functions of rural stock cooperatives to agricultural development,farmers' income increase,and rural prosperity. Finally,it came up with feasible recommendations for rural reform and the issues concerning agriculture,farmers and rural areas.
