XXIII.—Description of a new species of Closterium (Closterium Griffithii)

Synthesis of Organic Nitrogen and Chlorophyll by Nitzschia Closterium

When cells of Chlorella are grown in a medium containing a limiting quantity of nitrate or ammonia as nitrogen source, photosynthesis and cell division continue after all the available nitrogen in the medium has been abstracted by the growing plants. The cells become nitrogen-deficient. When kept in darkness with added nitrate these nitrogen-deficient cells synthesize a considerable quantity of...

Fatty Acid Profile and Hydrocarbon Characterization of Nitzschia Closterium (w.sm.)

Lipid productivity is a critical variable for evaluating algal species for biodiesel production. The pennate diatom Nitzschia closterium (W. Sm.) isolated from the local water body of Madurai was cultivated in four different media (WCg, Csi, F/2 and Diatom medium) and screened for the presence of neutral lipid content using Nile red fluorescent dye. The relative abundance of lipid content was e...

Prasiola calophylla and Closterium navicula, two new records of algal flora from Iran

Two new algal species, namely, Prasiola calophylla (Prasiolaceae), and Closterium navicula (Closteriaceae) were collected from west coasts of the Caspian sea (Mazandaran province, N Iran), and runoff in south Tehran, respectively. Both the species were analyzed on the bases of morphological and anatomical characters and were determined using identification keys and interspecific comparison. Pra...

On the Culture of the Marine Diatom Nitzschia closterium (f.) minutissima, in Artificial Sea-water.

Exopolysaccharide production by the epipelic diatom Cylindrotheca closterium: effects of nutrient conditions.

During the stationary phase of a batch culture of the epipelic diatom Cylindrotheca closterium, accumulation of exopolysaccharides and intracellular carbohydrates was observed. When nitrogen was added to the culture in the stationary phase, growth was resumed and the accumulation of exopolysaccharides was delayed. This indicated that nitrogen depletion caused cessation of growth, and stimulated...