The other types of vegetative reproductions are fragmentation, fission (binary fission), budding and regeneration.
Types of asexual reproduction: Clockwise from top left: Binary fission, Budding, Regeneration, and Fragmentation
As each of these fragments contains atleast one cell, they grow up into a new filament of the algae by cell division. Fragmentation occurs when the parent is matured enough. It is seen in Spirogyra.
The breaking of the filaments of filamentous algae into many fragments is known as fragmentation.
Fragmentation in spirogyra
In this mode of reproduction, the parent cell divides into two daughter cells, and each cell develops into a new adult organism.
It is seen in organisms like amoeba and bacteria.
In this process, a daughter individual is formed from a small bulb-like projection on the parent body called a bud. The bud detaches from the parent body and forms a new daughter cell.
It is seen in organisms such as Yeast and Hydra.
Budding in Yeast
Budding in hydra
A specialised mass of cells carries it out.
The ability of an individual organism's lost bodily components to regenerate into a whole new organism is known as regeneration.
It is observed in organisms such as Hydraand Planaria.