In this article we will discuss about the asexual and sexual methods of reproduction that occur in the life cycle of chlamydomonas. 1. Asexual Reproduction: It takes place by following methods: (A) By zoospores- The zoospore formation takes place during favourable conditions. The zoospore formation takes place as follows: The protoplast contracts and gets separated from the cell wall. The [...]
In this article we will discuss about the vegetative, asexual and sexual methods of reproduction that occur in the life cycle of oedogonium. (i) Vegetative Reproduction: Vegetative reproduction takes place by fragmentation and akinete formation. (A) Fragmentation: Oedogonium filament breaks into many small fragments which have capability to grow into complete filaments under favourable conditions. Fragmentation takes place due to [...]
In this article we will discuss about:- 1. Occurrence of Microcystis 2. Thallus Organisation of Microcystis 3. Reproduction. Occurrence of Microcystis: Microcystis (Gr. Micro = small; kystis = bladder) is a colonial fresh water alga. It is represented by 18 species. All species are free floating, and form extensive water blooms. This alga secretes poisonous substances. These substances destruct the [...]