Question

what are spores . mention any three type of spores ?

Answer 1

Dear Student

Spores are reproductive structures which can germinate and give rise to a new life.
They need not fuse with other reproductive cells.
Several non flowering plants, fungi, bacteria, protozoa etc produce spores as a means of reproduction.
Spores are formed both asexually and sexually. Spores sometimes are very hard and may survive for years.
Unlike seeds, spores do not contain any food or resource, thus they are not eaten up by animals or insects.

Three types of spores which carry out asexual reproduction in fungi are:
1. Sporangiospores: These are formed under unfavorable conditions. The tip of each sporangiophore develops a swollen sac called sporangium. A sporangium gives rise to non motile haploid spores called sporangiospores.After falling on a suitable substratum each sporangiospore germinates into a new mycelium.
2. Chlamyspores: These re thick walled spores which are formed in dry conditions. Each chlamydospore gives rise to a new mycelium on return of favorabe conditions.
3. Oidia: These are formed in sugar rich and acidic medium. Oidia multiply by budding. Each oidia forms a new mycelium when transferred to solid substratum.

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