Department of Microbiology and Plant Pathology, University of California, Riverside 92521.
Phytopathology. 2018 Aug;108(8):916-924. doi: 10.1094/PHYTO-04-18-0130-IA. Epub 2018 Jul 6.
The infamous oomycete Phytophthora infestans has been a persistent threat to potato and tomato production worldwide, causing the diseases known as late blight. This pathogen has proved to be remarkably adept at overcoming control strategies including host-based resistance and fungicides. This review describes the features of P. infestans that make it such a daunting challenge to agriculture. These include a stealthy lifestyle that helps P. infestans evade plant defenses, effectors that suppress host defenses and promote susceptibility, profuse sporulation with a short latent period that enables rapid dissemination, and a genome structure that promotes the adaptive evolution of P. infestans by fostering genetic diversity. Nevertheless, there is reason to be optimistic that accumulated knowledge about the biology of P. infestans and its hosts will lead to improved management of late blight.
声名狼藉的卵菌 Phytophthora infestans 一直是全球马铃薯和番茄生产的持续威胁，导致了晚疫病等疾病的发生。这种病原体已经被证明非常善于克服包括基于宿主的抗性和杀菌剂在内的控制策略。本综述描述了 P. infestans 的特征，使其成为农业的一个巨大挑战。这些特征包括帮助 P. infestans 逃避植物防御的隐秘生活方式、抑制宿主防御和促进易感性的效应子、短潜伏期的大量孢子形成，从而实现快速传播，以及促进 P. infestans 适应性进化的基因组结构，从而促进遗传多样性。尽管如此，人们有理由乐观地认为，积累的关于 P. infestans 及其宿主生物学的知识将导致晚疫病的管理得到改善。
