In this article we will discuss about the symmetry of pollen and spore wall of plants. The term symmetry with relation to a pollen grain implies similarity of halves on either side of a median line or plane so far as aperture and ornamentation etc., are concerned. Most pollen and spores are symmetrical. As a rule, symmetric pollen and spores [...]
In this article we will discuss about the process of thickening of cell wall in plants, explained with the help of suitable diagrams. The cell plate separates the two protoplast of a dividing cell. The cell plate gives rise to the middle lamella upon which the wall materials are laid down to form primary wall. During cell growth, each daughter [...]
The upcoming discussion will update you about the differences between pollen and spore. Difference # Pollen: 1. It is a container that houses male gametophyte of phanerogams. 2. The target of a pollen grain after transportation is stigma. 3. A pollen grain can perform its function when it reaches on a compatible stigma. 4. Aperturate pollen grains are colpate/porate etc. [...]