Varun Priyanka, Ranade S A, Saxena Sangeeta
Department of Biotechnology, School of Bioscience and Biotechnology, Babasaheb Bhimrao Ambedkar University, Lucknow, U.P. State, India.
Genetics and Molecular Biology Department, CSIR-National Botanical Research Institute, Lucknow, U.P. State, India.
Protoplasma. 2017 Nov;254(6):2055-2070. doi: 10.1007/s00709-017-1126-8. Epub 2017 May 25.
Papaya leaf curl disease (PaLCuD) caused by papaya leaf curl virus (PaLCuV) not only affects yield but also plant growth and fruit size and quality of papaya and is one of the most damaging and economically important disease. Management of PaLCuV is a challenging task due to diversity of viral strains, the alternate hosts, and the genomic complexities of the viruses. Several management strategies currently used by plant virologists to broadly control or eliminate the viruses have been discussed. In the absence of such strategies in the case of PaLCuV at present, the few available options to control the disease include methods like removal of affected plants from the field, insecticide treatments against the insect vector (Bemisia tabaci), and gene-specific control through transgenic constructs. This review presents the current understanding of papaya leaf curl disease, genomic components including satellite DNA associated with the virus, wide host and vector range, and management of the disease and suggests possible generic resistance strategies.
由木瓜叶卷曲病毒（PaLCuV）引起的木瓜叶卷曲病（PaLCuD）不仅影响产量，还会影响木瓜的植株生长、果实大小和品质，是最具破坏性且在经济上极为重要的病害之一。由于病毒株系的多样性、替代宿主以及病毒的基因组复杂性，对PaLCuV的管理是一项具有挑战性的任务。本文讨论了植物病毒学家目前广泛用于控制或消除病毒的几种管理策略。鉴于目前针对PaLCuV尚无此类策略，控制该病害的少数可用选项包括从田间清除受影响植株、针对昆虫传播介体（烟粉虱）进行杀虫剂处理以及通过转基因构建体进行基因特异性控制等方法。本综述介绍了对木瓜叶卷曲病的当前认识、包括与该病毒相关的卫星DNA在内的基因组组成部分、广泛的宿主和介体范围以及病害管理，并提出了可能的通用抗性策略。
