Phytophthora has been rebuilt to fix security-related problems and to restore GIS tools. These tools allow users to visualize the geospatial, temporal, and environmental contexts of Phytophthora discoveries. The next phase is to update species information and add data derived from large-scale surveys. If you have suggestions and requests to make the database better, please contact Seogchan Kang (sxk55@psu.edu).
PD_01603 (Phytophthora foliorum)
| P10974 | WPC |
N/A
Country: United States
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TN
May 1, 2004, midnight
Homothallic
Holotype. Received from Kurt Lamour on 12 December 2005. Azalea \'Pink Ruffles\' Location: Shelby, Tennessee. Mycological Research 110,11, November 2006, Pages 1309-1322. A previously unknown Phytophthora was recovered more than 60 times from evergreen hybrid azalea leaves collected during surveys for the sudden oak death pathogen Phytophthora ramorum in California and Tennessee. The novel Phytophthora was discovered when genomic DNA from this species cross-reacted with the ITS-based diagnostic PCR primers used to screen plants for the presence of P. ramorum. This species had caducous, semi-papillate sporangia, was homothallic with both paragynous and amphigynous antheridia, and was pathogenic on both wounded and intact azalea leaves. Nuclear and mitochondrial sequence data indicate that this species is related to, but distinct from, P. ramorum. AFLP analysis indicates that the isolates of this species have limited genotypic diversity and share no markers with P. ramorum. This paper presents the formal description of P. foliorum as a new species and underscores the need for caution when relying solely on DNA-based diagnostic tools.
| Marker | Sequence | Length |
|---|---|---|
| Internal transcribed spacer region of rDNA | PD_01603_ITS | 800 bp |