Search results
2 lut 2023 · In epidermal cells of roots, hypocotyls, and petals, leucoplasts remain interconnected by extensive networks of stromules (stroma-filled tubules). During the development of certain cell types, leucoplasts cluster around the nucleus with stromules extending to the cell periphery.
18 wrz 2024 · Leucoplasts are small rounded structures that belong to the plastid family. These are membrane-bound organelles which are found in certain cells, mainly plants and algae. The functions of leucoplasts include lipid synthesis, carbohydrate storage and starch production.
Epidermal cells of roots, petals, and callus among a few other tissues, are connected by narrow tubular structures known as stromules. At a given stage of cell development (in certain cells, e.g. cells of the root meristem), leucoplasts can be seen clustering around the nucleus.
Leucoplasts ("formed, molded") are a category of plastid and as such are organelles found in plant cells. They are non-pigmented, in contrast to other plastids such as the chloroplast.
They can be differentiated into “leucoplasts” in white, “chloroplasts” in green, and “chromoplasts” in either yellow, orange or red. Intermediate forms of chloroplasts are called “etioplasts” and senescent forms of chloroplasts are called “gerontoplasts”.
Leucoplasts are colorless plastids characteristic of mature root cells, which accumulate trace levels of neoxanthin and violaxanthin (Parry and Horgan, 1992). You might find these chapters and articles relevant to this topic. R. Finkeldey, O. Gailing, in Brenner's Encyclopedia of Genetics (Second Edition), 2013.
In some cell types at certain stages of development, leucoplasts are clustered around the nucleus with stromules extending to the cell periphery, as observed for proplastids in the root meristem.
