Onion epidermal cell Onion epidermal cell The epidermal cells of onions provide a protective layer against viruses and fungi that may harm the sensitive tissues. Because of their simple structure and transparency they are often used to introduce students to plant anatomy or to demonstrate plasmolysis. The clear epidermal cells exist in a single layer and do not contain chloroplasts, because the onion fruiting body (bulb) is used for storing energy, not photosynthesis. Each plant cell has a cell wall, cell membrane, cytoplasm, nucleus, and a large vacuole. The nucleus is present at the periphery of the cytoplasm. The vacuole is prominent and
Folliculostellate cell use: autocrine/paracrine control of anterior pituitary cell function though the use of cytokines and growth factors, intrapituitary communication among various cell types, and modulation of inflammatory response feedback. FS cells have similar properties to dendritic cells and macrophages, implying a phagocytic role. FS cells having a main role in moderating the neuro-immune/endocrine regulation of inflammation is backed up by data in conjunction with depicting C3a, C5a receptors (which are the main factors of the innate immune system, secreting IL-6 and MIF (inflammatory cytokines), and controlling the release of these cytokines via anti-inflammatory molecules. Experiments have been carried out to assess