spore
/spɔ:/
Học thuậtThân thiện
Definition
- Noun:
- A microscopic, typically single-celled, asexual reproductive unit: A
sporeis a reproductive structure produced by certain plants, fungi, bacteria, and protozoans. It is capable of developing into a new individual without the need for sexual fusion (fertilization). - A sexual reproductive unit: In some contexts, a
sporecan also refer to a cell formed after the fusion of gametes (sexual reproduction), which then develops into a new organism.
Usage Examples
- Noun:
- Ferns and mosses reproduce by releasing spores into the air.
- The fungus produced millions of microscopic spores.
- Under the microscope, we observed the bacterial spores.
Advanced Usage
- "Spore formation": The process by which an organism produces spores.
- Spore formation is a common survival strategy for bacteria in harsh conditions.
- "Spore-bearing": Describing an organism or structure that produces or carries spores.
- The underside of the fern leaf is spore-bearing.
Variants and Related Words
- Sporangium (n): A structure in which spores are produced.
- The sporangium ruptured to release the spores.
- Sporulate (v): To produce or release spores.
- The mold will sporulate when conditions are right.
- Spore case: Another term for a sporangium.
Synonyms
- Reproductive cell
- Propagule (a general term for any structure that propagates a plant, including spores and seeds).
Related Phrases and Terms
- "Spore dispersal": The method by which spores are spread from the parent organism.
- Wind is a primary agent of spore dispersal for many fungi.
- "Resting spore": A spore that remains dormant for a period before germinating.
- The resting spore allowed the pathogen to survive the winter.
Noun
- a small usually single-celled asexual reproductive body produced by many nonflowering plants and fungi and some bacteria and protozoans and that are capable of developing into a new individual without sexual fusion
- a sexual spore is formed after the fusion of gametes