Is Aulosira cyanobacteria?
Aulosira is a genus of cyanobacteria found in a variety of environmental niches that forms colonies composed of filaments of moniliform cells.
Is Aulosira symbiotic?
As well, they form symbiotic and commensal relationships with a number of other organisms. In general, they are most abundant from waters with a neutral or slightly alkaline pH and can exhibit diurnal variation in abundance in waters with low buffering capacity.
Is Aulosira free living or symbiotic?
Anabaena, Nostoc, Aulosira etc., are agriculturally very important as non-symbiotic bacteria also called free living nitrogen fixing bacteria. VAM, Azotobacter and Rhizobium are symbiotic organisms.
Is Aulosira photosynthetic?
1.2. Cyanobacteria are photosynthetic prokaryotes and are ubiquitous in nature. Efficient N2-fixing cyanobacteria like Nostoc, Anabaena, Aulosira, Calothrix sp., etc., have been recognized in different diverse agroecological regions and applied to enhance rice production (Prasad and Prasad, 2001).
Which of the following is correct Aulosira is the?
Aulosira is the most active and efficient nitrogen fixer. Hence option C is correct.
Is Aulosira a biofertilizer?
A combination of Azospirillum, Glomus mosseae, Pseudomonas striata, and blue-green algae (composed of Aulosira fertilissima, Anabaena variabilis, Tolypothrix tenuis, and Nostoc muscorum) has been used as a rice biofertilizer and shown to result in better growth and grain yield production (Chinnusamy et al., 2006).
What type of bacteria is Oscillatoria and what is its purpose?
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.
Is Anabaena an autotrophs?
Anabaena is an autorophic bacteria. Anabaena bacteria is useful in fixing nitrogen molecules in the atmosphere. Anabaena also serves as producers in trophic level as it can perform photosynthesis. They are found in both aquatic as well as terrestrial environments or habitats.
In which genus cyanobacteria serves as Biofertilizer?
The two cyanobacteria which serve as biofertilisers are Nostoc and Anabaena. They possess heterocysts and fix atmospheric nitrogen into ammonia.