Definition of Nucellus. Meaning of Nucellus. Synonyms of Nucellus

- fertilization, the nucellus may develop into the perisperm that feeds the embryo. In some plants, the diploid tissue of the nucellus can give rise to the...
- inside bird eggs and plant ovules. It attaches or suspends the yolk or nucellus within the larger structure. In the eggs of most birds (not of the reptiles)...
- endosperm develop, the wall of the embryo sac enlarges and combines with the nucellus and integument to form the seed coat. The ovary wall develops to form the...
- apomixis), an embryo is formed directly (not from a gametophyte) from nucellus or integument tissue (see nucellar embryony). Maheshwari used the following...
- surrounded by two layers of tissue: a vascularised nucellus and a usually three-layered integument; the nucellus and integument were completely free except at...
- megasporangium tissue. In flowering plants the megasporangium is also called the nucellus, and the female gametophyte is sometimes called the embryo sac or embryonic...
- to the contrary, the word commonly refers to an envelope covering the nucellus of the ovule. The integument may consist of one layer (unitegmic) or two...
- embryony is a type of apomixis, where eventually nucellar embryos from the nucellus tissue of the ovule are formed, independent of meiosis and ****ual reproduction...
- is sealed by a plug-shaped extension of the nucellus. Unlike living gymnosperms, the tip of the nucellus lacks a pollen chamber (receptacle for stored...
- gamete is ****umed in large part by diploid cells of the megasporangium (nucellus) inside the ovule. Gymnosperms have their archegonium formed after pollination...