Resurgence of Pseudoperonospora cubensis: The Causal Agent of Cucurbit Downy Mildew
Language English Country United States Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't, Research Support, U.S. Gov't, Non-P.H.S., Review
- Keywords
- disease outbreak, population changes,
- MeSH
- Drug Resistance, Microbial MeSH
- Cucurbitaceae genetics microbiology MeSH
- Plant Immunity genetics MeSH
- Host-Pathogen Interactions genetics MeSH
- Pest Control MeSH
- Plant Diseases MeSH
- Oomycetes physiology MeSH
- Fungicides, Industrial MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Review MeSH
- Research Support, U.S. Gov't, Non-P.H.S. MeSH
- Geographicals
- Europe MeSH
- United States MeSH
- Names of Substances
- Fungicides, Industrial MeSH
The downy mildew pathogen, Pseudoperonospora cubensis, which infects plant species in the family Cucurbitaceae, has undergone major changes during the last decade. Disease severity and epidemics are far more destructive than previously reported, and new genotypes, races, pathotypes, and mating types of the pathogen have been discovered in populations from around the globe as a result of the resurgence of the disease. Consequently, disease control through host plant resistance and fungicide applications has become more complex. This resurgence of P. cubensis offers challenges to scientists in many research areas including pathogen biology, epidemiology and dispersal, population structure and population genetics, host preference, host-pathogen interactions and gene expression, genetic host plant resistance, inheritance of host and fungicide resistance, and chemical disease control. This review serves to summarize the current status of this major pathogen and to guide future management and research efforts within this pathosystem.
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