The study is included isolation and identification of eight species cyanobacteria from 12 soil samples Garmat-Ali Abu-Alkhaseeb in Basrah city. isolated have been grown multiplicated at laboratory condition:Temperature (27±2) ºC illumination (150-175) Lux for (16:8) hours light : dark cycle. ability these to produce antibiotics against reference strains the gram positive bacteria, Staphylococcu...

Several lines of evidence indicate that allophycocyanin is the previously unidentified "phycochrome" observed in extracts of blue-green algae.Fractions containing phycoerythrin, phycocyanin, and allophycocyanin and exhibiting light-induced absorbance changes were prepared from extracts of Nostoc muscorum and Fremyella diplosiphon by isoelectric focusing. Illumination of such fractions with red ...

Abstract Cyanobacteria like Arthrospira platensis and Nostoc muscorum are known to be beneficial for plant development. They can improve growth, yield, proximate content (protein carbohydrate), stimulate tolerance abiotic stresses herbicides. In the present study, impacts of brominal herbicide (Bh) alone or in combination with natural cyanobacterial synthetic tryptophan treatments were investig...