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 melonis
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 Scale bar indicates number of substitutions per site.(Martin, Blair and Coffey, unpublished).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 melonis Katsura 1976 (Oomycetes, Pythiales)
= Phytophthora sinensis Y.N. Yu & W.Y. Zhuang 1982 Note: Synonymy supported by molecular analysis (Cooke 2000).
Notes: Ho & Jong (1986) considered Phytophthora melonis a synonym of Phytophthora drechsleri but this was not supported by molecular analysis (Cooke et al. 2000).
Distribution: Asia.
Substrate: Stems, vines, fruits, leaves.
Disease Note: Late blight or foot rot.
Host: Cucumis sativus (cucumber, Cucurbitaceae). Also reported from Citrullus lanatus (Cucurbitaceae) and Pistacia vera (Anacardiaceae).
Supporting Literature:
Cooke, D.E.L., Drenth, A., Duncan, J.M., Wagels, G., and Brasier, C.M. 2000. A molecular phylogeny of Phytophthora and related Oomycetes. Fungal Genet. Biol. 30: 17-32
Erwin, D.C., and Ribeiro, O.K. 1996. Phytophthora Diseases Worldwide. APS Press, St. Paul, Minnesota, 562 pages.
Ho, H.H. 1986. Phytophthora melonis and P. sinensis synonymous with P. drechsleri. Mycologia 78: 907-912
Ho, H.H., and Jong, S.C. 1986. A comparison between Phytophthora cryptogea and P. drechsleri. Mycotaxon 27: 289-319

Updated on Jun 06, 2006

Characteristics

Diseases

Known Diagnostics

Control Strategies

Notes

References

[[PAPER:2374|1]]

[[PAPER:2375|1]]

Acknowledgements

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

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