puccinia graminis
Học thuậtThân thiện
A scientist examines a wheat leaf infected with Puccinia graminis under a microscope.
Definition
Noun: * A species of rust fungus, specifically a parasitic basidiomycete fungus, that causes the plant disease known as stem rust, primarily attacking wheat and other cereal crops.
Usage
- This term is a scientific binomial name (genus , species ) used in mycology and plant pathology. It is used in academic, agricultural, and scientific contexts to refer to this specific pathogen.
- It functions as a singular noun. The species name does not change for pluralization; the plural is typically indicated by context (e.g., "specimens of ").
Examples
- Scientific Context: " is one of the most destructive pathogens of wheat globally."
- Agricultural Context: "Farmers are monitoring their fields for signs of infection."
- Descriptive Context: "The life cycle of involves two different host plants."
Advanced Usage
- The full name is often used formally. In subsequent mentions within a specialized text, it may be abbreviated as .
- It is frequently modified by terms specifying its form or variety, such as " f. sp. " (the form specializing on wheat).
Variants and Related Words
- Stem rust: The common name for the disease caused by .
- Wheat rust: A broader term for rust diseases affecting wheat, which can be caused by and other species like (leaf rust).
- Rust fungus: The general common name for fungi in the order Pucciniales, to which belongs.
Synonyms
- Stem rust fungus: The descriptive common name.
- Black rust: An older common name referring to the dark-colored teliospores produced by the fungus.
Related Phrases / Terms
- Host resistance: A key strategy in managing .
- Urediniospore / Teliospore: Specific spore types produced by during its life cycle.
- Barberry (Berberis vulgaris): The alternate host plant required for the sexual reproduction phase of .
A scientist examines a wheat leaf infected with Puccinia graminis under a microscope.
Noun
- rust fungus that attacks wheat