Laurens P. N. M. Kroon,
Arthur W. A. M. de Cock, and
First author: Bejo Zaden B.V., Trambaan 2A, 1749 CZ, Warmenhuizen, The Netherlands; second and third authors: CBS-KNAW, Fungal Biodiversity Centre, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands; second author: Microbiology, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands; and fourth author: Laboratory of Phytopathology, Wageningen University and Centre for BioSystems Genomics, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands.
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Accepted for publication 7 December 2011.
Plant diseases caused by Phytophthora species will remain an ever increasing threat to agriculture and natural ecosystems. Phytophthora literally means plant destroyer, a name coined in the 19th century by Anton de Bary when he investigated the potato disease that set the stage for the Great Irish Famine. Phytophthora infestans, the causal agent of potato late blight, was the first species in a genus that at present has over 100 recognized members. In the last decade, the number of recognized Phytophthora species has nearly doubled and new species are added almost on a monthly basis. Here we present an overview of the 10 clades that are currently distinguished within the genus Phytophthora with special emphasis on new species that have been described since 1996 when Erwin and Ribeiro published the valuable monograph ‘Phytophthora diseases worldwide’ (35).
This article is in the public domain and not copyrightable. It may be freely reprinted with customary crediting of the source. The American Phytopathological Society, 2012.