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昆虫病原线虫是农林害虫生物防治中重要的生防因子之一。它对非生物胁迫的耐受能力决定着线虫在田间的个体生存及控制害虫效果。线虫对环境胁迫的响应是一个整体性的复杂过程,体现在群体遗传、发育阶段、生理生化和抗逆相关基因的表达调控等不同层次、不同水平上。本文综述了昆虫病原线虫抗逆相关领域的主要研究进展,重点介绍线虫响应非生物胁迫的生理生化机制和相关抗性基因的分离鉴定,并对该研究领域发展趋势进行了讨论和展望,期望为我国研究线虫抗逆机理提供一些新的信息。
Entomopathogenic nematodes is one of the important biological control factors in the biological control of agricultural and forestry pests. Its tolerance to abiotic stresses determines the individual survival of the nematode in the field and the control of insect pests. The response of nematodes to environmental stress is a holistic and complex process, which is manifested at different levels and at different levels, such as population genetics, developmental stages, physiological and biochemical reactions, and expression and regulation of stress-related genes. This review summarizes the major advances in the field of insect pathogenic nematode resistance, with emphasis on the physiological and biochemical mechanisms of nematode response to abiotic stress and the isolation and identification of related resistance genes. The development trends in this field are discussed and the expectation is Our study of nematode resistance mechanism provides some new information.