Question:
Algae are known to reproduce asexually by a variety of spores under different environmental conditions. Name these spores and the conditions under which they are produced.
Solution:
Zoospores are thin-walled spores that are motile and flagellated. They are produced under favourable conditions
Aplanospores are thin-walled non-motile spores and produced under unfavourable condition.
Hypnospores are thick-walled spores and produced under unfavourable condition.
Akinites are from the vegetative cells, thick cell wall. It is formed under unfavourable condition.
Hormogonia are the fragments of filaments formed due to breakage of thallus due to the formation of mucilaginous filled necridia. It is formed under unfavourable condition.