Study on Isolation and Characterization of Cyanobacteria from High TDS Ground Water from Madurai District, Tamilnadu, India

Different environmental factors influenced the growth, heterocyst frequency and Nitrogen fixation of cyanobacteria, among this water is a one of the important factor for determining the cyanobacterial distribution. Different cyanobacteria strains have different efficiency to adapt to the quality of water. Therefore, the present study was carried out to isolate cyanobacterial strains from the selected ground water samples with high TDS and to estimate chlorophyll a, ammonia excretion and nitrogen content of selective cyanobacteria. According to this study the chlorophyll a content was measured as high as in pudur water sample when compared to other samples and least was noted in Ponnagaram sample. The Phycobilin contentPhycocyanin and Phycoerythrin was greater in Thiruppalai sample compared to that of other samples. The ammonia excreted content and the nitrogen content in the Cyanobacteria culture filtrate showed the maximum content in Ponnagaram and Anna Nagar water sample. Thus the study indicated that these water samples with high TDS promoted the cyanobacteria which can be cultured massively and applied as a bio fertilizer in agriculture practices.