Definition

1. Noun:
   • A thick-walled resting spore formed by the fusion of two similar gametes: In biology, a "zygospore" is a type of spore produced by some fungi and algae, characterized by a thick, resistant wall. It results from the conjugation or fusion of two morphologically similar reproductive cells (gametes), serving as a dormant stage to survive unfavorable conditions.

Examples of Usage

• Noun:
  • The zygospore remained dormant in the soil until conditions were favorable for germination.
  • Under the microscope, we observed the formation of a zygospore after the fusion of the two gametes.

Advanced Usage

• In a scientific context: The term is primarily used in mycology, phycology, and botany to describe a specific reproductive structure.
  • The life cycle of Rhizopus includes a zygosporangium that contains the diploid zygospore.

Variants and Related Words

• Zygosporangium (n): The sporangium (a structure) that contains or encloses the zygospore.
• Zygote (n): The cell formed by the fusion of two gametes; a zygospore is a specific, thick-walled type of zygote in certain organisms.

Synonyms

• Resting spore: A general term for a spore that enters a period of dormancy.
• Zygote: While a zygote is the fused cell, a zygospore specifically refers to that cell when it develops a thick wall for dormancy in certain groups like zygomycetes.

Related Terms (Not Phrasal Verbs or Idioms)

• Conjugation: The process of sexual reproduction where two cells fuse, often leading to zygospore formation.
• Gamete: A mature haploid reproductive cell that fuses with another to form a zygote/zygospore.

Noun

1. a plant spore formed by two similar sexual cells