Question

give a brief account of prothallus?

Answer 1

Definition of prothallus

1: the gametophyte of a pteridophyte (such as a fern) that is typically a small flat green thallus attached to the soil by rhizoids

2: a greatly reduced structure of a seed plant corresponding to the pteridophyte prothallus

Is it right

Answer 2

HLO MATE HERE IS UR ANSWER

❤. PROTHALLUS ❤

⭐. The gametophytic plant body of pteridophytes is called 'prothallus '.

⭐. The haploid spore germinates and gives rise to prothallus.

⭐. It is a heart shaped thallus like structure ,green , dorsiventral with a notch .

⭐. The rhizoids produced on ventral surface are unicellular.

⭐. prothallus grows on shady ,dampy and wet soil.

⭐. Male sex organs antheridia are produced on the lower part of prothallus.

⭐. Female sex organ archegonia are produced near the notch.

⭐. The antherzoids are ciliated ,require water to reach the egg.

⭐. The zygote develols into an embryo , which developes into a daploid sporophyte with in the female gametophyte.