LO-analysis is a means to elucidate the details of sexine pattern on the basis of light microscopic observations of a pollen grain and spore at different adjustments of the microscope. The ultra thin section (0.1-0.5 micron thick) and optical section of a pollen grain provide details of sexine. The term optical section refers to the view of a pollen grain [...]
In this article we will discuss about the aperture found in the pollen and spore wall of plants. It is a weak, preformed locus on the exine of spore and pollen through which the intra-exinous substance exits and pollen tube emerges during pollen germination. Apertures may be absent from a pollen grain or spore when they are termed as inaperturate/atreme/non-aperturate [...]
In this article we will discuss about the classification of meristem based on function. The categories are: 1. Protoderm 2. Procambium 3. Ground Meristem. Category # 1. Protoderm: The formation of dermal tissue system in plant is attributable to protoderm. Dermal tissue system consists of epidermis/multiple epidermises and all other structures that occur on epidermis, e.g. stomata, hairs, glandular hairs [...]