erwinia
Definition
Noun: 1. A genus of bacteria: Erwinia refers to a genus of Gram-negative, rod-shaped, and motile bacteria belonging to the family Enterobacteriaceae. These bacteria are primarily known as plant pathogens, causing diseases such as soft rot, blight, and wilt in a wide variety of plants.
Usage
The word "erwinia" is a scientific term used in microbiology, plant pathology, and agriculture. It functions as a proper noun (the genus name) and is typically capitalized (Erwinia), though it often appears in lowercase in general text. It is used to classify and discuss specific bacterial agents responsible for plant diseases.
Examples
- The farmer identified erwinia as the cause of the fire blight in his apple orchard.
- Laboratory tests confirmed the presence of Erwinia amylovora, the bacterium responsible for the pear tree infection.
- Research into erwinia species focuses on developing resistant crop varieties.
Advanced Usage
- The genus name is often used attributively to describe the diseases or characteristics associated with it: , .
- In scientific nomenclature, the genus name is followed by a specific epithet to denote the species (e.g., , now often reclassified within ).
Variants and Related Words
- Erwiniaceae (n): The proposed or former family name for this group of bacteria.
- Pectobacterium (n): A closely related genus into which many former species (particularly those causing soft rot) have been reclassified. The terms are sometimes used interchangeably in non-technical contexts.
- Dickeya (n): Another genus of bacteria split from the former genus.
Synonyms
- Plant-pathogenic bacteria (general term)
- Soft rot bacteria (descriptive term for a common disease caused by some species)
Related Phrases & Context
- Bacterial wilt: A disease symptom often associated with .
- Fire blight: A specific, destructive disease caused by .
- Gram-negative rod: A descriptive microbiological term for the physical shape and staining property of these bacteria.
Noun
-
rod-shaped motile bacteria that attack plants
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