交叉保护防治柑橘衰退病研究进展

Progresses in Study of Cross Protection Against Citrus tristeza virus

柑橘衰退病毒引起的茎陷点型和速衰型衰退病对世界柑橘产业造成了严重损失。目前交叉保护是防治茎陷点型衰退病最有效的方法,也用于酸橙砧木速衰型衰退病的防治。从各国防治经验、弱毒株筛选方法、防治机理等方面对交叉保护防治柑橘衰退病的最新研究进展作出综述,同时就现有交叉保护防治技术的不足和解决途径进行讨论和展望,旨在为更好地防治柑橘衰退病提供借鉴。

Citrus tristeza virus(CTV)causes stem pitting and quick decline that have caused devastating losses in global citrus production. At present,the best means to protect commercial citrus against endemic stem pitting isolates of CTV has been cross-protection with appropriate mild CTV isolates. Research was directed towards the selection and screening of mild strains of CTV which could protect against sour orange decline strains. In this paper,progress in cross protection against CTV,the screening of mild strains of CTV and the mechanism of cross protection were reviewed. Furthermore,the possible disadvantages for using cross protection against CTV were also discussed in order to lay a sound foundation for better control of the damage caused by CTV.