Question

In algae, aplanospores are produced during a)favourable conditions b)unfavourable conditions c)mild conditions d)both a) and b)

Answer 1

Aplanospores are nonmotile asexual spores found in certain algae and fungi. They are formed from a part of a protoplast of a vegetative cell. Aplanospores consists of a cell wall, which is different from the original parental cell wall, allowing the survival of the organism in harsh conditions. Haematococcus Pluvialis forms cell aggregates due to the nitrogen deprivation. These aggregates finally become aplanospores.

Answer: Option (b)
Aplanospores are formed under unfavorable conditions. Aplanospores are non-motile structures, in which protoplasm gets surrounded by a thin cell wall. The aplanospores on release form new plants, e.g., Ulothrix.