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What is the cell structure of Oscillatoria?

What is the cell structure of 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.

What is the order of Oscillatoria?

Oscillatoriales
Oscillatoria/Order

What is the classification of Oscillatoria?

Oscillatoria
Oscillatoria/Scientific names

What is the size of Oscillatoria?

Lyngbya (including species moved to Limnoraphis) and Oscillatoria have short, wide, coin-like cells (2-8 μm in length; up to 25 μm in width; for comparison, a strand of spider silk is about 5 μm wide). Lyngbya (and Limnoraphis ) filaments are surrounded by a firm mucilage sheath.

Is Oscillatoria a prokaryote?

Nostoc and Oscillatoria are cyanobacteria; they are a group of photosynthetic and nitrogen-fixing bacteria, and Mycobacterium comes under true bacteria. Therefore, Nostoc, Oscillatoria, and Mycobacterium are prokaryotes.

Why does Oscillatoria deserve its name?

Bacteria that have thick peptidoglycan walls. Why does Oscillatoria deserve its name? Because it oscillates back and forth. What important characteristics do bacteria and cyanobacteria (blue-green algae) have in common?

Why is it called Oscillatoria?

Oscillatoria is a genus of filamentous cyanobacterium which is named after the oscillation in its movement. Filaments in the colonies can slide back and forth against each other until the whole mass is reoriented to its light source.

Is Oscillatoria a nitrogen fixer?

Nostoc, Anabaena, and Oscillatoria are nitrogen- fixing algae. They are capable of fixing atmospheric nitrogen as free-living forms and also in mutual association with the roots of plants. Other than nitrogen cyanobacteria can also fix carbon from carbon dioxide during photosynthesis.

Is Oscillatoria a Biofertilizer?

Thus, Oscillatoria sp. can be introduced as biofertilizer for rice (BR 29) cultivation in the northern region of Bangladesh which is economical too.

Which type of DNA is found in bacteria?

Bacterial cells do not have nucleus. Nuclear material of bacteria lies free in the cell in the form of an irregular, thin fibrillar and circular single molecule of DNA called nucleoid or chromatin body. This DNA is sometimes attached at one or more points to a mesosome.

Why is Oscillatoria green?

Oscillatoria princeps is the type species (lectotype) of the cyanobacterial (blue green algal) genus Oscillatoria. The cyanobacterium is dark blue green in colour, due to the presence of the phycobilin pigments phycocyanin and phycoerythrin.

Is Oscillatoria a Heterocyst?

Nitrogen fixation in marine Oscillatoria appears to be associated with differentiated cells located in the center of the colony. These observations explain how Oscillatoria is able to fix N2 without heterocysts in an aerobic environment and why it blooms virtually always occur in calm seas.

What is the morphology of an Oscillatoria cell?

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.

How is the Oscillatoria an organism that reproduces?

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. Breaks in the filament usually occur where dead cells (necridia) are present.

What do you need to know about the Oscillatoria?

Oscillatoria sp. A — B, Vegetative structure. C, Cell structure; D, Filament showing separating disc; E, Hormogones It is restricted only to the vegetative reproduction, which takes place with the help of hormogones. Hormogones are the parts or lengths of filaments separated from the filament by the formation of the separating disc.

What happens when an Oscillatoria breaks into fragments?

Oscillatoria forms long filaments of cells which can break into fragments called hormogonia. The hormogonia can grow into a new, longer filament. Breaks in the filament usually occur where dead cells (necridia) are present.