Question

Write short note on: Vegetative thallus of vaucheria.​

Answer 1

Answer:

wriwtkjtstkrukdyketjeykkkeykeykkyeekykek

Answer 2

Vegetative Body of Vaucheria:

The thallus consists of a spa­ringly branched tubular, coenocytic filament having no cross-walls ex­cepting at the reproductive regions. They are attached to the substratum by means of rhizoid-like branches.The growth of the thallus is restricted to the apices of the bran­ches. The coenocytic thallus, when injured, may develop transverse sep­ta blocking the injured portion. The cell wall is thin and consists of an inner layer of cellulose and a pectose layer external to it. Just within the cell wall, there is a thin layer of cytoplasm surrounding a large cen­tral vacuole which runs, without interruption, throughout the entire length of the thallus.Embedded in the peripheral layer of cytoplasm are numerous nuclei and chloro­plasts, the former lying towards the inner face and the latter towards the outer face of the cytoplasm. The chloroplasts are without pyrenoids and are either circular or elliptical in outline. Food reserves are stored as oil under natural condition, but when continuously illuminated, starch may be formed instead.