Abstract:

Soil with deficient basic nutrient or toxic elements is widespread globally and thus seriously affects crop production. To reduce the damage caused by soil stress, plants have evolved their adaptive mechanisms. Recent studies have found that miRNAs possess important roles in plant response to soil stress. This paper summarizes the roles of miRNAs in responding to soil stress of nutrients deficiency and toxicity elements, lays emphasis on integration of miRNAs in soil stress regulatory networks, and puts forward thoughts for improving plant adaptability to problem soils.

Key words: miRNAs, soil stress, adaptability

摘要：

基本养分缺乏和含有有毒元素的土壤全球范围内广泛存在,严重影响作物生产。为了减少土壤胁迫的伤害,植物进化了适应不良土壤环境的机制。研究发现植物miRNA在植物适应土壤胁迫中具有重要作用。总结了在植物响应土壤养分缺乏胁迫和土壤元素毒害胁迫中植物miRNA的作用,强调植物miRNA在胁迫响应调控网络中的作用,提出改良植物不良土壤适应能力的思路。

关键词: microRNA;土壤胁迫;适应性