microsporophyll of cycas

The microsporophyll of Cycas represents a stamen. Each microsporophyll (equivalent to stamen of angiosperm) is hard, leafy triangular and bears a number (700 to 1160) of microsporangia (pollen sac) on lower (abaxial) side.

1. What is a Microsporophyll?
2. What is Microsporophyll and Megasporophyll?
3. Which part of the flower is called a Microsporophyll?
4. What is the difference between Microsporophyll and Microsporangia?
5. Is anther a Microsporangium?
6. What is the function of Microsporangium?
7. What does Megasporophyll produce?
8. What is the Megasporophyll in angiosperms?
9. How many Microsporangia are present in an anther?
10. Is the anther male or female?
11. What is the female part of a flower called?
12. What is the female gametophyte?

What is a Microsporophyll?

(ˌmaɪkrəʊˈspɔːrəfɪl) n. (Botany) a leaf on which the microspores are formed: corresponds to the stamen of a flowering plant.

What is Microsporophyll and Megasporophyll?

Microsporophyll bears spores that grow into male gametophytes. The microsporophylls located just inside the petals, are the Stamens. Megasporophyll bears spores that grow into female gametophytes. The megasporophylls located just inside the stamens, are the Carpels.

Which part of the flower is called a Microsporophyll?

The stamen (microsporophyll), is often called the flower's male reproductive organ. It is typically located between the central pistil and the surrounding petals. A stamen consists of a slender stalk (the filament) tipped by a usually bilobed sac (the anther) in which microspores develop as pollen grains.

What is the difference between Microsporophyll and Microsporangia?

As nouns the difference between microsporophyll and microsporangium. is that microsporophyll is a leaflike organ that bears one or more microsporangia (contrast megasporophyll) while microsporangium is (botany) a case, capsule or container that holds microspores.

Is anther a Microsporangium?

The male gametophyte develops and reaches maturity in an immature anther. In a plant's male reproductive organs, development of pollen takes place in a structure known as the microsporangium (Figure 5). The microsporangia, which are usually bi-lobed, are pollen sacs in which the microspores develop into pollen grains.

What is the function of Microsporangium?

Microsporangia are sporangia that produce microspores that give rise to male gametophytes when they germinate. Microsporangia occur in all vascular plants that have heterosporic life cycles, such as seed plants, spike mosses and the aquatic fern genus Azolla.

What does Megasporophyll produce?

Megasporophyll is a type of leaf-like structure produced by heterosporous plants such as seed plants, lycophytes, and some ferns. Generally, it produces megasporangia, sacs that produce megaspores of female spores. Moreover, in seed plants, ovule serves as the megasporangium.

What is the Megasporophyll in angiosperms?

A megasporophyll or carpel is rolled and partly sterilized to produce a stigma, style and ovary containing ovules. Within ovules are present highly reduced female gametophytes known as embryo sacs. Embryo sac formation is preceded by meiosis. So all the cells of embryo sac are haploid.

How many Microsporangia are present in an anther?

Angiosperm stamens have anthers with four microsporangia (pollen sacs), organized into two thecae basically in all clades (Endress and Stumpf, 1990).

Is the anther male or female?

The male parts are called stamens and usually surround the pistil. The stamen is made up of two parts: the anther and filament. The anther produces pollen (male reproductive cells). The filament holds the anther up.

What is the female part of a flower called?

The pistil is a plant's female part. It generally is shaped like a bowling pin and is located in the flower's center. It consists of a stigma, style and ovary. The stigma is located at the top and is connected by the style to the ovary.

What is the female gametophyte?

The female gametophyte develops within the ovule and generally consists of three antipodal cells, one central cell, two synergid cells, and one egg cell (Figures 1A and 1B). The female gametophyte is also commonly called the embryo sac or megagametophyte.