rust fungus

Thân thiện

The rust fungus forms orange spots on the wheat leaves.

Definition

Noun: A parasitic fungus belonging to the order Pucciniales (formerly Uredinales) that causes plant diseases characterized by reddish-brown or yellowish pustules on stems and leaves. These fungi are obligate parasites, requiring a living host plant to complete their life cycle.

Usage

The term "rust fungus" is used to refer to the specific pathogen causing a rust disease. It is a standard term in plant pathology and agriculture. - The wheat crop was severely damaged by a rust fungus. - Scientists are studying the life cycle of the rust fungus that affects coffee plants.

Advanced Usage

• "Rust fungus" as a collective term: While often used for a single species, it can also refer to the entire taxonomic group.
  • Control of rust fungus is a major challenge for organic farmers.

Variants and Related Words

• Rust (noun): The plant disease itself, caused by a rust fungus.
  • The apple trees have cedar-apple rust.
• Rusts (noun, plural): A common way to refer to multiple types or instances of these fungi or diseases.
  • Cereal rusts are a global threat to food security.

Synonyms

• Rust pathogen: A more technical synonym emphasizing its disease-causing nature.
• Puccinia (noun): The name of a very large and economically important genus within the rust fungi. (Note: This is a specific genus name, not a direct synonym for all rust fungi).

Related Phrases

• Rust disease: The condition caused by the fungus.
  • The farm is battling an outbreak of rust disease.
• Rust infection: The process or state of being infected by the fungus.
  • Early signs of rust infection include small yellow spots on leaves.

Học thuật

Noun

1. any of various fungi causing rust disease in plants

Từ đồng nghĩa

• rust