genus nostoc
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Definition
Noun: * A taxonomic category: "Genus Nostoc" is the type genus of the family Nostocaceae. It refers to a specific group of freshwater, filamentous cyanobacteria (blue-green algae) characterized by their ability to form gelatinous colonies and fix atmospheric nitrogen.
Usage Notes
- "Genus Nostoc" is a scientific, taxonomic term used in biology, specifically in microbiology, phycology (the study of algae), and botany.
- It is always capitalized ("Genus ") as it is a proper noun representing a formal genus name.
- In non-scientific contexts, organisms within this genus are often simply called "nostoc" or "blue-green algae."
Examples
- Scientific Context:
- The sample contained several species belonging to Genus Nostoc.
- Researchers are studying the nitrogen-fixing capabilities of Genus Nostoc.
- Under the microscope, the filaments of Genus Nostoc are clearly visible within the colonial mass.
Advanced Usage
- The term is used to discuss evolutionary relationships, ecological roles, and physiological characteristics unique to this group of organisms.
- The phylogenetic analysis confirmed the placement of Genus Nostoc within the family Nostocaceae.
Variants and Related Words
- Nostoc (n): The common name for algae of this genus, or used informally to refer to the genus itself.
- The pond was covered in a greenish jelly-like substance identified as nostoc.
- Nostocaceae (n): The family of cyanobacteria to which Genus Nostoc belongs.
- Cyanobacterium (n, pl. Cyanobacteria): The broader scientific term for blue-green algae, describing the phylum to which Genus Nostoc belongs.
Synonyms
- Blue-green algae (general, non-taxonomic term)
- Cyanobacteria (scientific term for the larger group)
Related Phrases / Collocations
- Nostoc colony: Refers to the visible, often spherical or amorphous, gelatinous structure formed by the algae.
- Nostoc species: Refers to the individual types within the genus, such as .
- Fix nitrogen: A key biological function performed by Genus Nostoc.
Noun
- type genus of the family Nostocaceae: freshwater blue-green algae