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).

Phytophthora
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Species Detail Information
Phytophthora hedraiandra
The genus-wide phylogenetic tree

Genus wide phylogeny for Phytophthora using four mitochondrial loci (cox2, nad9, rps10 and secY; 2,373 nucleotides). Maximum likelihood branch lengths shown. Numbers on nodes represent bootstrap support values for maximum likelihood (top), maximum parsimony (middle) and Bayesian posterior probabilities as percentages (bottom). Nodes receiving significant support (>95%) in all analysis are marked with an asterisk (*). Scale bar indicates number of substitutions per site.(Martin, Blair and Coffey, unpublished).

phylogenetic tree

[ Click the tree to enlarge it. ]

Nomenclature
This information was provided by the Systematic Botany and Mycology Laboratory in USDA-ARS.

Phytophthora hedraiandra De Cock & Man in 't Veld 2004 (Oomycetes, Pythiales)
Distribution: Europe (the Netherlands), North America (USA:MN).
Substrate: Leaves.
Disease Note: Leaf spot, dieback.
Host: Viburnum sp. (Adoxaceae), Rhododendron sp. (Ericaceae).
Supporting Literature:
de Cock, A.W.A.M., and Lévesque, C.A. 2004. New species of Pythium and Phytophthora. Stud. Mycol. 50: 481-487

Updated on Jun 26, 2006

Characteristics

Diseases

Known Diagnostics

Control Strategies

Notes

References

Acknowledgements

Nomenclature information was provided by the the Systematic Botany and Mycology Laboratory in USDA-ARS.

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