একটি উদ্ভিদ ওভিউল কেন্দ্রীয় অংশ; ভ্রূণ কোষ রয়েছে

nucellus's Usage Examples:

consists of three parts: the integument, forming its outer layer, the nucellus (or remnant of the megasporangium), and the female gametophyte (formed.

It attaches or suspends the yolk or nucellus within the larger structure.

ancestor, including the presence of a lagenostome at the apex of the nucellus, the general structure of the pollen organs, and the overall morphology.

embryony is a type of apomixis, where eventually nucellar embryos from the nucellus tissue of the ovule are formed, independent of meiosis and sexual reproduction.

surrounded and protected the nucellus, such as in Eurystoma and then Stamnostoma.

These earliest ovules had the apical part of the nucellus exposed, from which.

characterised by large ovules with circular cross-section and a vascularised nucellus, complex pollen-organs, stems and rachides with a dissected stele, and.

In flowering plants the megasporangium is also called the nucellus, and the female gametophyte is sometimes called the embryo sac.

female meiospore or megaspore contained in the modified sporangium or nucellus of the parent sporophyte.

apomixis), an embryo is formed directly (not from a gametophyte) from nucellus or integument tissue (see nucellar embryony).

to about 100 small, orthotropous but incurved ovules; pedicel present; nucellus largely free.

gymnosperms and flowering plants, the megaspore is produced inside the nucellus of the ovule.

gamete is assumed in large part by diploid cells of the megasporangium (nucellus) inside the ovule.

The nucellus, the remnant of the megasporangium and main region of the ovule where the.

Regeneration of plantlets through somatic embryogenesis from nucellus tissue of Citrus macroptera Mont.

sarcotesta, the sclerotesta, and the inner layer (possibly corresponding to the nucellus).

characteristic secretory structures have an integument that was only fused to the nucellus in the basal part of the ovules and so superficially resemble medullosalean.

Instead, the nucellus produces a nutritive tissue termed "perisperm".

nucellus, and there it may wait for a year before it germinates and forms a pollen tube that grows through the wall of the megasporangium (=nucellus).

germinate to produce a pollen tube that penetrates the megasporangium or nucellus carrying with it sperm nuclei that are transferred to the egg cell in the.

initially consists of a stalked, integumented megasporangium (also called the nucellus).

nucellus's Meaning':

central part of a plant ovule; contains the embryo sac

Synonyms:

plant structure; plant part; ovule;

Antonyms:

artifact;