In this article we will discuss about the stoma in a plant. This will also help you to draw the structure and diagram of stoma in plant. A stoma consists of two guard cells that surround an aperture. In the extinct Devonian Pteridophyte Zosterophyllum myretonianum and Z. ilanoveranum had one guard cell with an aperture in its centre that simulates [...]
Before illustrating the ontogeny of stomatal complex it may be useful to have a precise definition of the following terms which are used in this essay. The definitions are in accordance with Pant (1965). i. Stoma: It includes the pore and two guard cells. ii. Stomatal complex/stomatal apparatus: It includes a stoma and the adjoining subsidiary cells. It also includes [...]
The following points highlight the top eight types of stoma in the epidermis. The types are: 1. Anomocytic 2. Anisocytic 3. Paracytic 4. Diacytic 5. Actinocytic 6. Gramineous 7. Hemiparacytic 8. Hexacytic. Type # 1. Anomocytic (also called ranunculaceous or irregular-celled type): Anomocytic stoma remains surrounded by cells that are not different from other epidermal cells so far as size [...]