gametophyte of marchantia sp

Gametophyte of Marc hantia sp. All gametophytes are haploid (n). The state of gametophyte is called the sexual generation of the plant. They can produce gametes for fertilization. The sexual generation terminates as the zygote is formed. Then, the zygote is diploid (2n) and develops into the asexual generation. The gametophyte of a Marchantia is a thallus. A thallus is a leafli!e structure on "etsoil surface or floating on "ater surface. The lo"er side is composed of thin"alled cells for the storage of nutrient. Mul tic ell ula r rhizoids may extend out for the a#s orption of "at er and mi nera ls. The uppe r side is composed of columns of chloroplast#earing cells for photosynthesis. Male Gametophyte of March antia sp. $emale Gametophyte of Marc hantia sp. The num#er of thalluses can #e increased #y fragmentation. Gemmae cups can #e produced on the upper side. %nside the gemmae cup are a num#er of #uds called gemmae. &hen the gemmae are detached and reach satisfactory conditions, they "ould germinate to produce ne" thalluses. This is the "ay of asexual reproduction.

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Notes on gametophyte of Marchantia

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Gametophyte of Marchantia sp

The gametophyte of a Marchantia is athallus. A thallus is a leaf-like structure on wet-soil surface or floating on water surface. The lower side is composed of thin-walled cells for the storage of nutrient. Multicellularrhizoids may extend out for the absorption of water and minerals. The upper side is composed of columns of chloroplast-bearing cells for photosynthesis.

INCLUDEPICTURE "http://lungtp.com/plantae/e_marchantia1.jpg" \* MERGEFORMATINET

Male Gametophyte of Marchantia sp. Female Gametophyte of Marchantia sp.

The number of thalluses can be increased by fragmentation.Gemmae cupscan be produced on the upper side. Inside the gemmae cup are a number of buds calledgemmae. When the gemmae are detached and reach satisfactory conditions, they would germinate to produce new thalluses. This is the way ofasexual reproduction.

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