Archive | Palynology

Functions of Tapetum | Anther Wall

In this article we will discuss about the functions of tapetum. Many physiological functions have been accredited to the tapetum, but they all congregate on the ability of its cells to synthesize metabolites for the nourishment of microsporocytes, regulation of meiosis, pollen wall formation, synthesis of pollenkitt, etc. Experimental approach to establish tapetal function in a convincing way has come [...]

By |2016-11-28T11:16:51+00:00November 28, 2016|Palynology|Comments Off on Functions of Tapetum | Anther Wall

Evolutionary Trends among Pollen Grains

In this article we will discuss about the evolutionary trends among pollen grains based on palynotaxonomical works. Primarily the aperture is proximal in position in all the taxa of plants, and a change from proximal to distal has been conditioned by physiological and ecological needs that arose in the wake of the origin of new plant taxa. The bryophytes and [...]

By |2016-11-28T11:16:50+00:00November 28, 2016|Palynology|Comments Off on Evolutionary Trends among Pollen Grains

Structure of Pistil | Palynology

In this article we will discuss about the structure of pistil, explained with the help of suitable diagram. The pistil is the female part of the flower, which is divisible into stigma, style, and ovary. It is adapted to receive the pollen, aid its germiĀ­nation, and subsequently entry of the pollen tube into the ovary, ovule and finally into the [...]

By |2016-11-28T11:16:50+00:00November 28, 2016|Palynology|Comments Off on Structure of Pistil | Palynology
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