Pythium debaryanum

Pythium debaryanum is a species of oomycete, a group of fungus-like microorganisms, that is known to cause various plant diseases. It is named after the German botanist Heinrich Anton de Bary, who made significant contributions to the study of fungi and plant diseases.

Taxonomy

Pythium debaryanum belongs to the genus Pythium, which is part of the family Pythiaceae. The Pythiaceae family is within the order Pythiales, which is a part of the class Oomycetes. Oomycetes are often referred to as water molds due to their aquatic habitats and fungus-like appearance.

Morphology

The hyphae of Pythium debaryanum are coenocytic, meaning they lack septa, or cross-walls. The sporangia are terminal and intercalary, and the oogonia are smooth and spherical. The antheridia are monoclinous, meaning they are capable of self-fertilization.

Pathogenicity

Pythium debaryanum is a pathogen that causes diseases in a wide range of plant species. It is known to cause root rot, damping off, and seedling blight. The pathogen is particularly damaging in waterlogged conditions, as it thrives in water and can easily spread from plant to plant.

Management

Management of Pythium debaryanum involves a combination of cultural practices and chemical control. Cultural practices include improving soil drainage, rotating crops, and using disease-free seeds. Chemical control involves the use of fungicides that are effective against oomycetes.

See also

• Pythium
• Oomycete
• Plant pathology

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Pythium_debaryanum

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  Parasitism of Pythium debaryanum Hesse on the potato tuber 412

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  Parasitism of Pythium debaryanum Hesse on the potato tuber 415