What is megasporophyll and Microsporophyll?

In a plant if the sporophyll bears megasporangia, they are called megasporophylls. If it bears microsporangia then it’s called microsporophylls. Sporophylls lead to the development of male and female gametophytes of seed plants (spermatophytes).

What is Cycas megasporophyll?

Megasporophyll of Cycas: Cycas is strictly dioceous plant i.e. male and female reproductive structures are grown in different plants. Female reproductive organs are present in the form of megasporophylls. Each megasporophyll is considered as a modification of foliage leaf and reaches up to 20 cm or more in length.

What is megasporophyll in gymnosperms?

The megasporophyll is a sporophyte that contains megasporangium in gymnosperms. On the other side, the carpel is the female reproductive organs in flowers. The male reproductive organ is known as stamen which is composed of anther and filament. It produces male gamete or pollen grain.

What do you mean by sporophylls?

A sporophyll is a leaf that bears sporangia. Both microphylls and megaphylls can be sporophylls. In heterosporous plants, sporophylls (whether they are microphylls or megaphylls) bear either megasporangia and thus are called megasporophylls, or microsporangia and are called microsporophylls.

Where are megasporophyll found?

“[A] : Either megasporophylls or microsporophylls are found in Gymnosperms .

What is difference between Megasporangium and megasporophyll?

As nouns the difference between megasporophyll and megasporangium. is that megasporophyll is a sporophyll that bears megasporangia while megasporangium is (biology) a sporangium which produces only megaspores.

What is the structure of megasporophyll?

The megasporophylls are leaf-like structure. Each is differentiated into lower (proximal) petiole, middle ovule bearing region and upper pinately dissected sterile region. Each megasporophyll bears 1-5 pairs of ovules. The ovules of Cycas are perhaps the largest in plant kingdom.

What Megasporophyll means?

(ˌmɛɡəˈspɔːrəfɪl) n. (Botany) a leaf on which the megaspores are formed: corresponds to the carpel of a flowering plant. Compare microsporophyll.

Where are Megasporophyll found?

Where are sporophylls found?

lucidulum), the sporangium-bearing leaves (sporophylls) occur in zones among the vegetative portions of the stems. In most, however, the sporophylls occur in specialized compressed stems called cones or strobili. Each sporophyll is associated with one yellow to orange kidney-shaped sporangium.

What does the word Strobilus mean?

Definition of strobilus 1 : an aggregation of sporophylls resembling a cone (as in the club mosses and horsetails) 2 : the cone of a gymnosperm.

Is ovule a Megasporophyll?

Megasporangium along with its protective coverings the integuments are known as ovules. So, the ovule is an integument megasporangium. > Megasporophyll is equivalent to the carpel of the angiosperms.