Recent advances in physiological and biochemical mechanisms of cotton resistance to Verticillium wilt
Cotton is the most important cash crop in China,playing a vital role not only in national revenue and people's income but also in the healthy development of the national textile industry and textile exports.Verticillium wilt caused by Verticillium dahliae is the most notorious disease in cotton production,which significantly reduces the yield and quality of cotton.It is widely acknowledged that V.dahliae infections could activate a series of defense responses in cotton plant,including structural resistance alterations,plant hormone signal transduction,and the induction of defense-related genes.Currently,many genes involved in the cotton Verticillium wilt resistance have been identified,and their individual mechanisms of physiological and biochemical regulation have been demonstrated.In this review,we summarized the characteristics and mechanisms of physiological and biochemical resistance to cotton Verticillium wilt,including reactive oxygen species,defense enzymes,secondary metabolites,and plant hormones.Furthermore,we conceptualized the regulatory network governing physiological and biochemical resistance to cotton Verticillium wilt,which will provide a theoretical basis for further understanding the mechanisms of Verticillium wilt resistance and for improving resistance breeding in cotton.
cottonVerticillium wiltresistance mechanismphysiological and biochemical response
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