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

Phases of Pollen Wall: Exine and Intine | Palynology

Pollen wall development may be considered under exine and intine growth phases. 1. Exine Growth Phase: After meiosis of microsporocyte (microspore mother cells) the tetrads of haploid microspores are enveloped by a callosic wall. The callose wall can be detected around the microspore mother cells during initiation of meiosis (Fig. 2.1a and 2.2a). It forms a layer between the cytoplasm [...]

By |2016-11-28T11:16:50+00:00November 28, 2016|Palynology|Comments Off on Phases of Pollen Wall: Exine and Intine | Palynology

Pollen Storage in Plants: Methods and Significance

In this article we will discuss about the methods and significance of pollen storage in plants. Systematic research on pollen storage started at the end of the 19th century. There is large number of crop species, including vegetables, fibre and fruit crops, forage and cereals, for which pollen storage strategies are desirable. Genetic conservation through pollen storage is desirable for [...]

By |2016-11-28T11:16:50+00:00November 28, 2016|Palynology|Comments Off on Pollen Storage in Plants: Methods and Significance
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