This website offers science-based information to aid in the understanding and management of the world’s forest Phytophthora species. Twenty of the most damaging species of forest Phytophthoras are profiled as of January 2021. Click on any Phytophthora species (left sidebar on the database) for information about the pathogen and the forest disease(s) it causes, access educational and disease management materials, and view scientific references.
In order to facilitate the correct identification of Phytophthora species, we provide standards of procedures (SOPs) for all steps involved with molecular identification using sequencing analysis of the ITS rDNA and COI barcoding regions.
In order to facilitate accurate identification of Phytophthora species, we provide standards of procedures (SOPs) for isolation, maintenance, storage of isolates, methods for sporulation, and other tasks related to morphological identification.
Phythophthora ID Grünwald lab Horticultural Crops Research Laboratory, Dept of Botany+Plant Pathology, Oregon State University
Herbaria where the types of Phytophthora are deposited
Westerdijk Fungal Biodiversity Institute, KNAW, The Netherlands (CBS) (specimens under https://wi.knaw.nl/page/fungal_table)
BPI Herbarium, USDA-ARS, Maryland, United States (BPI) (https://nt.ars-grin.gov/fungaldatabases/specimens/Specimens.cfm)
HerbIMI Kew Royal Botanical Gardens (IMI) (http://www.herbimi.info/herbimi/searchiminumber.htm)
Murdoch University Herbarium School of Biological Sciences and Biotechnology (MURU) (http://sweetgum.nybg.org/science/ih/herbarium-details/?irn=125312)
National Institute of Technology and Evaluation–National Biological Resource Center, Japan (NBRC) (specimens under NBRC-H) (http://sweetgum.nybg.org/science/ih/herbarium-details/?irn=125455)
Journal Article Burgess, T. I. et al. (2021) “Towards a Best Practice Methodology for the Detection of Phytophthora Species in Soils,” Plant Pathology, 70(3), pp. 604–614. doi: 10.1111/ppa.13312.