What is Batrachospermum?

Batrachospermum is fresh water alga. It is found in clear, cool and running streams. Deep water plants are dark violet or reddish in colour. But the shallow water species are olive green.

How does Batrachospermum reproduce sexually and asexually?

The protoplast of each cell is uninucleate, and contains several discoid or elongated chromatophores, each with a pyrenoid. Batrachospermum reproduces both asexually and sexually. Asexual reproduction always takes place in the young gametophytes by the production of monospores, developed singly within sporangia, called monosporangia.

What is Chantransia stage of Batrachospermum?

Chantransia stage (young protonemal stage of Batrachospermum) At this stage, gametophytic thallus resembles another algae –. Chantransia and therefore this stage is called Chantransia stage. •At this stage, gametophytic thallus is small, microscopic, filamentous and heterotrichous.

Is the life cycle of Batrachospermum haplobiontic or dibasic?

Thus there are two haploid phases are formed during the life cycle of Batrachospermum. These are gametophyte and carposporophyte. They alternate with one diploid phase called zygote. Therefore, the life cycle of Batrachospermum is haplobiontic or dibasic type.

Batrachospermum is a type of algae that grows in freshwater. It lives in transparent, cool, and fast-moving streams. Plants in deep water are dark violet or reddish in color.

How many nuclei are present in Batrachospermum spermatium?

In Batrachospermum, the nucleus divides into two as soon as it contacts the trichogyne. So at the time of the fertilization spermatium contains two nuclei and sometimes known as spermatium complex. The carpogonia develop on the terminal ends of the short laterals. The terminal cell of the lateral divides into four cells.

Is Batrachospermum asexual or asexual reproduction?

Asexual Reproduction: Batrachospermum produces monospores, which are non-motile asexual spores. Only the juvenile or chantransia stage produces them. Sexual Reproduction: Oogamy is a form of sexual reproduction. It’s possible that the plant is both homothallic and heterothallic.

How many species of genergenera are there in Batrachospermaceae?

Genera in Batrachospermaceae Genus Authority Number of species Acarposporophycos Necchi 1 Balliopsis G.W. Saunders & Necchi 1 Batrachospermum Roth 34 Kumanoa Entwisle, M.L.Vis, W.B.Chiasson, Necchi 39