एक अंडाकार की दीवार में मिनट खोलना जिसके माध्यम से पराग ट्यूब प्रवेश करता है

micropyle शब्द के हिंदी अर्थ का उदाहरण:

फिर भी कुछ गुण ऐसे हैं जैसे वाहिका (Vessel) का होना, संयुक्त शंकु (compound cone), अत्यंत लंबी माइक्रोपाइल, पत्तियों का आमने सामने (opposite) होना इत्यादि, जो तीनों प्रजातियों में मिलते हैं।

জজজ

micropyle's Usage Examples:

A young ovule consists of a conical nucellus surrounded by a single integument terminating as a two-lipped micropyle.

The ovary is small, rounded to elliptical, and one-celled, and contains a single slightly bent ovule sessile on the ventral suture (that is, springing from the back of the ovary); the micropyle points downwards.

Brown's views as to the structure of the unimpregnated ovule (with the introduction of the term "sac embryonnaire"); and in that it shows how nearly Brongniart anticipated Amici's subsequent (1846) discovery of the entrance of the pollen-tube into the micropyle, fertilizing the female cell which then develops into the embryo.

The primary root of the embryo in all Angiosperms points towards the micropyle.

In some Monocotyledons, Pistil and macrosporangium, is very similar to the process in Fertiliza- to the opening of the micropyle, into which the pollen- tion.

a pro-embryo - a cellular row of which the cell nearest the micropyle becomes attached to the apex of the embryo-sac, and thus fixes the position of the developing embryo, while the terminal cell is projected into its cavity.

Such a method of entrance is styled chalazogamic, in contrast to the porogamic or ordinary method of approach by means of the micropyle.

In Casuarina, Juglans and the order Corylaceae, the pollen-tube does not enter by means of the micropyle, but passing down the ovary wall and through the placenta, enters at the chalazal end of the ovule.

There are five, or sometimes fewer, carpels, which unite to form an ovary with as many chambers, in each of which are one or two, rarely more, pendulous anatropous ovules, attached to the central column in such a way that the micropyle points outwards and the raphe is turned towards the placenta.

The development of the ovule, which represents the embryo- Gymnosperms; when mature it consists of one or two sac. coats surrounding the central nucellus, except at the apex where an opening, the micropyle, is left.

micropyle's Meaning':

minute opening in the wall of an ovule through which the pollen tube enters