chlamydospore
Học thuậtThân thiện
Definition
Noun: A thick-walled, asexual, and dormant spore formed by some fungi and algae, serving as a resting structure to survive unfavorable environmental conditions.
Usage
The term is used specifically in mycology (the study of fungi) and phycology (the study of algae) to describe a particular type of resilient, non-motile spore. It is a technical term.
Examples
- The fungus produced chlamydospores that allowed it to persist in the soil for many years.
- Under the microscope, the chlamydospore was easily identifiable by its thick, dark wall.
- The survival of the pathogen during the drought was attributed to its chlamydospores.
Advanced Usage
- Formation and Function: Chlamydospores are typically formed from hyphal cells. Their primary function is perennation, enabling the organism to survive periods of stress such as nutrient deficiency, desiccation, or extreme temperatures.
- In Plant Pathology: The term is frequently used in agricultural science when discussing soil-borne fungal pathogens (e.g., , ). Their chlamydospores make them difficult to eradicate from fields.
Variants and Related Words
- Chlamydospore is the standard noun form. The related adjective is chlamydosporic (e.g., chlamydosporic cells).
- Akinete: A similar thick-walled resting spore found in cyanobacteria and some algae.
- Resting Spore: A broader category that includes chlamydospores, oospores, and zygospores.
Synonyms
- Resting spore (in a general sense)
- Dormant spore
- Survival spore
Antonyms
- Zoospore (a motile, flagellated spore)
- Conidium (a thin-walled, asexual spore for dispersal, not primarily for dormancy)
Noun
- thick-walled asexual resting spore of certain fungi and algae