Which term describes a thick-walled resting spore formed by rounding up of a cell?

Which term describes a thick-walled resting spore formed by rounding up of a cell?

• A. Sporangiospore
• B. Blastospore
• C. Conidiospore
• D. Chlamydospore

Answer: (D)

Thick-walled resting spores in fungi are chlamydospores. They form when a cell rounds up and its wall becomes markedly thickened, creating a durable structure that can endure unfavorable conditions. This distinguishes them from sporangiospores, which are produced inside a sporangium as part of normal reproduction; blastospores, formed by budding from yeast-like cells and typically not thick-walled resting forms; and conidiospores, which are asexual spores produced on conidiophores for rapid dispersal rather than survival.

Thick-walled resting spores in fungi are chlamydospores. They form when a cell rounds up and its wall becomes markedly thickened, creating a durable structure that can endure unfavorable conditions. This distinguishes them from sporangiospores, which are produced inside a sporangium as part of normal reproduction; blastospores, formed by budding from yeast-like cells and typically not thick-walled resting forms; and conidiospores, which are asexual spores produced on conidiophores for rapid dispersal rather than survival.