What is Chantransia stage in Batrachospermum?
What is Chantransia stage in Batrachospermum?
A small outgrowth is formed from one side of carpospore. The outgrowth is cut off by the formation of septum. It divides transversely for many times to form prostrate filaments. This sage of thallus resemble to another alga called chantransia. Therefore, this stage of Batrachospermum is called Chantransia stage.
In which algae is Chantransia stage found?
Audouinella macrospora (Acrochaetiaceae, Rhodophyta) is the Chantransia stage of Batrachospermum (Batrachospermaceae) Twelve field and culture populations of freshwater acrochaetioid algae were examined to compare a bluish species of Audouinella , A.
What is Gongrosira stage?
Explanation: Sometimes, thin wall divides the contents of aplanospore in to many parts. Each part develops cysts or hypnospores. This stage of Vaucheria is called Gongrosira stage as it resembles the alga Gongrosira. The cyst ruptures in favourable conditions and protoplast comes out by amoeboid movement.
What is the meaning of Carpospores?
Definition of carpospore : a diploid spore of a red alga.
Where is oscillatoria found?
Habitat: Oscillatoria is found in the shallow waters of lakes, ponds, ditches, and slow flowing rivers. Oscillatoria tends to be more prevalent in waters that are rich in organic matter during the summer when water temperatures have warmed.
What is the meaning of Batrachospermum?
Definition of Batrachospermum : a genus (the type of the family Batrachospermaceae) of red algae of the order Nemalionales found in slow-moving fresh waters and having a thallus that consists of a conspicuous central axis bearing transverse whorls of short branches at regular intervals.
What is Gangrosira stage?
What is Palmella stage?
Definition of palmella stage : a colonial aggregate of immobile nonflagellated individuals occurring regularly in the life cycle or in response to increased firmness of medium of some flagellated green algae or plantlike flagellates (as members of the genera Euglena and Chlamydomonas)
What is Tetraspore and carpospores?
Carposporephyte and tetrasporophyte are two stages unique to the red algal life cycle. Tetrasporophyte is formed by the germination of diploid carpospores. Both carposporophyte and tetrasporophyte are diploid structures. They produce asexual non-motile spores for asexual reproduction.
What is the Protandrous?
Protandrous refers to stamens developing, or pollen release occurring, prior to the maturation of carpels or stigmas being receptive. Protogynous is the reverse, with carpels or stigmas developing before stamens mature or pollen is released.
What are the features of Oscillatoria?
It is commonly found in watering-troughs waters, and is mainly blue-green or brown-green. Oscillatoria is an organism that reproduces by fragmentation. Oscillatoria forms long filaments of cells which can break into fragments called hormogonia. The hormogonia can grow into a new, longer filament.
What is the morphology Oscillatoria?
Oscillatoria Morphology It consists of a single row of cells forming trichomes or un-branched filaments with a very thin gelatinous sheath. The cells are broader than longer but cylindrical. All cells of a filament are similar with the exception of apical cell which is convex at the top.