What is gemma Cup and its function?

What is gemma Cup and its function?

The main function of the Gemma cup is vegetative reproduction. • The Gemma is a small cup-shaped cell found on the thalli of bryophytes such as mosses and liverworts. • The Gemma cells separated from the parent and develop into a new individual.

What type of plant has a gemmae Cup?

plant Marchantia polymorpha
The basal land plant Marchantia polymorpha efficiently propagates in favourable environments through clonal progeny called gemmae. Gemmae develop in cup-shaped receptacles known as gemma cups, which are formed on the gametophyte body.

How are gemmae cups formed?

The basal land plant Marchantia polymorpha efficiently propagates in favourable environments through clonal progeny called gemmae. Gemmae develop in cup-shaped receptacles known as gemma cups, which are formed on the gametophyte body.

How do gemma cups work?

These cups are located at the apex of the leafy moss and function in reproduction. The moss makes little discs of plant tissue inside the cups called gemmae. When rain droplets land in the cup the gemmae are dislodged and can be carried in the water as it splatters away from the moss plant. …

What is gemmae Cup in marchantia?

Summary. The basal land plant Marchantia polymorpha efficiently propagates in favourable environments through clonal progeny called gemmae. Gemmae develop in cup-shaped receptacles known as gemma cups, which are formed on the gametophyte body.

What is the use of gemmae?

The form of the gemmae is often very useful when identifying certain bryophytes. gemmae are variously dispersed (e.g. by wind, water) and are capable of growing into new plants.

What is gemma give example?

The production of gemmae is a widespread means of asexual reproduction in both liverworts and mosses. In liverworts such as Marchantia, the flattened plant body or thallus is a haploid gametophyte with gemma cups scattered about its upper surface. The gemma cups are cup-like structures containing gemmae.

What are gemmae cups Class 11?

Gemmae are green, multicellular, asexual buds, which develop in small receptacles called gemma cups located on the thalli. The sporophyte is differentiated into a foot, seta, and capsule. After meiosis, spores are produced within the capsule, the spores germinate to form free-living gametophytes.

Are gemmae cups sporophyte?

The sporophyte consists of a foot where it attaches to the gametophyte, a stalk called the seta, and a large egg-shaped sporangium, in which haploid spores are produced through meiosis. Look on the top surface for gemmae cups containing gemmae, tiny green discs of haploid cells. Gemmae are asexual propagules.

What are gemma cups and what do they do?

Hence, in this way helps in vegetative reproduction of some bryophytes. Gemma cups serve as the receptacles in which the asexual, green, multicellular, haploid buds called gemmae are produced. They are located on the thalli (gametophyte) of bryophytes (mosses and liverworts).

What kind of plant has Gemma in it?

Liverworts Marchantia with round cups, and Lunularia with crescent cups, both containing gemmae. The production of gemmae is a widespread means of asexual reproduction in both liverworts and mosses. In liverworts such as Marchantia, the flattened plant body or thallus is a haploid gametophyte with gemma cups scattered about its upper surface.

What is the function of gemma cups in liverworts?

The production of gemmae is a widespread means of asexual reproduction in both liverworts and mosses. In liverworts such as Marchantia, the flattened plant body or thallus is a haploid gametophyte with gemma cups scattered about its upper surface.

How are gametophytes dispersed from a gemma cup?

The gemmae are small discs of haploid tissue, and they directly give rise to new gametophytes. They are dispersed from gemma cups by rainfall.