genus peronospora

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genus peronospora

A scientist examines a plant leaf infected with genus Peronospora.

Definition

Noun: 1. A taxonomic genus of parasitic oomycetes: "Genus Peronospora" is the scientific name for a specific group of destructive, plant-pathogenic organisms commonly known as downy mildews. These are not true fungi but belong to the Oomycota class. Members of this genus are obligate parasites, meaning they require a living host plant to grow and reproduce.

Usage Notes
  • The term "Genus Peronospora" is used in formal, scientific contexts such as mycology, plant pathology, agriculture, and botany. It is always capitalized and often italicized in academic writing.
  • It refers to the entire genus as a taxonomic category. Individual species within this genus are referred to with a binomial name, e.g., .
Examples of Usage
  • Noun:
    • The identification of the pathogen confirmed it was a member of Genus Peronospora.
    • Genus Peronospora contains many species that cause significant damage to economically important crops.
    • Research on Genus Peronospora focuses on understanding its life cycle to develop effective control measures.
Advanced Usage
  • "Peronospora" as a common shorthand: In less formal scientific discourse, the genus name "Peronospora" is often used alone to refer to the group or to a disease caused by it.
    • The lettuce crop was infected with Peronospora.
Variants and Related Words
  • Peronosporaceae (n): The family of oomycetes to which the genus belongs.
  • Peronospora (n): The abbreviated form of the genus name, commonly used.
  • Downy mildew (n): The common name for the plant disease caused by pathogens in and related genera.
    • Downy mildew on grapes is caused by a different genus, Plasmopara viticola.
Synonyms
  • Downy mildew genus (informal/scientific description): A descriptive synonym referencing the common name of the diseases it causes.
  • Peronosporaceous genus (scientific): A term indicating it belongs to the Peronosporaceae family.
Related Phrases
  • Peronospora infection: An infection caused by a pathogen from this genus.
    • The field showed signs of a severe Peronospora infection.
  • Peronospora resistance: A trait in plants that makes them less susceptible to these pathogens.
    • Breeding for Peronospora resistance is a major goal for spinach growers.
genus peronospora

A scientist examines a plant leaf infected with genus Peronospora.

Noun
  1. genus of destructive downy mildews

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