CERTAIN RARE NON-HETEROCYSTOUS BLUE-GREEN ALGAE OF PSEUDANABAENACEAE (OSCILLATORIALES, CYANOPROKARYOTE) FROM POLLUTED HABITATS OF MEERUT, UTTAR PRADESH, INDIA

Water pollution is a major problem in India and most of the major rivers of the country are heavily polluted by different types of pollutants and invite the growth of various organisms including microalgae. The aim of the present investigation was to explore the biodiversity of the Blue-green algae from different polluted habitats of Meerut, Uttar Pradesh, India. The present paper deals with the diversity of non-heterocystous filamentous taxa of the family Pseudanabaenaceae. Water samples collected from three different polluted water reservoirs of Meerut, U.P., India were subjected to microscopic observations and identification. The present study revealed the occurrence of total 45 strains of 15 species and 8 genera belonging to three sub families including Pseudanabaenoideae, Spirulinoideae and Leptolyngbyoideae of the family Pseudanabaenaceae viz. Geitlerinema lemmermannii, G. nematode, Jaaginema gracile Leptolyngbya aspera, L. foveolarum, L. geysericola, L. gracilis, L. mycoidea; Limnothrix planctonica, Planktolyngbya contorta, Pseudanabaena limnetica, P. minima, P. Recta, Romeria mexicana and Spirulina subsalsa. The study also revealed the unexplored diversity of non-heterocystous filamentous blue green algae from three polluted water reservoirs of Meerut, U.P., India.