Diversity of Foliar Phytophthora Species on Rhododendron in Oregon Nurseries

Knaus, B. J.; Fieland, V. J.; Graham, K. A.; Gr��nwald, N. J.; Grünwald, N. J.

Citeable URL: https://ir.library.oregonstate.edu/concern/articles/3x816p178

A supplement with restriction size data and GenBank accessions is deposited at figshare (24). Available online at: http://dx.doi.org/10.6084/m9.figshare.1153948

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Attribute Name	Values
Creator	Knaus, B. J. Fieland, V. J. Graham, K. A. Gr��nwald, N. J. Grünwald, N. J.
Abstract	The genus Phytophthora contains some of the most notorious plant pathogens affecting nursery crops. Given the recent emergence of the sudden oak death pathogen Phytophthora ramorum, particularly in association with Rhododendron spp., characterization of Phytophthora communities associated with this host in nursery environments is prudent. Many taxa may present symptoms similar to P. ramorum but we do not necessarily know their identity, frequency, and importance. Here, we present a survey of Phytophthora taxa observed from seven nurseries in the U.S. state of Oregon. Incidence and diversity of Phytophthora communities differed significantly among nurseries and among seasons within nursery. The taxa P. syringae and P. plurivora were widespread and detected at most of the nurseries sampled. Nine other taxa were also detected but were found either in a single nursery or were shared among only a few nurseries. Characterization of the Phytophthora communities present in nurseries is an important step toward understanding the ecology of these organisms as well as an aid to nursery managers in determining what risks may be present when symptomatic plants are observed. This study builds on an increasing literature, which characterizes Phytophthora community structure in nurseries.
Resource Type	Article
DOI	10.1094/PDIS-09-14-0964-RE
Date Available	2015-11-12T15:48:35+00:00
Date Issued	2015-10
Citation	Knaus, B. J., Fieland, V. J., Graham, K. A., & Grünwald, N. J. (2015). Diversity of Foliar Phytophthora Species on Rhododendron in Oregon Nurseries. Plant Disease, 99(10), 1326-1332. doi:10.1094/PDIS-09-14-0964-RE
Journal Title	Plant Disease
Series	Plant Disease Vol. 99 no. 10
Rights Statement	Copyright Not Evaluated
Funding Statement (additional comments about funding)	This project was supported by funds from USDA-ARS CRIS Project 5358-22000-039-00D, the USDA-ARS Floriculture Nursery Initiative, the USDA ARS NW Center for Nursery Crops, and the Oregon Department of Agriculture/Oregon Association of Nurseries (ODA-OAN) research programs.
Publisher	American Phytopathological Society
Peer Reviewed	Yes
Language	English [eng]
Replaces	http://hdl.handle.net/1957/57725
Additional Information	description.provenance : Submitted by Patricia Black (patricia.black@oregonstate.edu) on 2015-11-12T15:48:16Z No. of bitstreams: 1 FielandVBotanyPlantPathDiversityFoliarPhytophthora.pdf: 380635 bytes, checksum: 5d51f19236150c75babad3df5291d69b (MD5) description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2015-11-12T15:48:35Z (GMT) No. of bitstreams: 1 FielandVBotanyPlantPathDiversityFoliarPhytophthora.pdf: 380635 bytes, checksum: 5d51f19236150c75babad3df5291d69b (MD5) description.provenance : Made available in DSpace on 2015-11-12T15:48:35Z (GMT). No. of bitstreams: 1 FielandVBotanyPlantPathDiversityFoliarPhytophthora.pdf: 380635 bytes, checksum: 5d51f19236150c75babad3df5291d69b (MD5) Previous issue date: 2015-10

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