Fresh water Cyanobacteria of Sai River near Lucknow, Uttar Pradesh (original) (raw)
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A taxonomic investigation on cyanobacteria from Supaul district of north Bihar, India
Present study deals with morphotaxonomic study of 9 taxa belonging to the class Cyanophyceae (Bluegreen algae). These taxa were collected from different freshwater habitats of Supaul district of North Bihar. Of these, two taxa viz. Anabaena orientalis S.C. Dixit. and Phormidium rubroterricola Gardner are being recorded for the first time from Bihar.
Cyanobacterial diversity in different sites and seasons of Gossaigaon Subdivision, Assam, India
Proceedings of the International Academy of Ecology and Environmental Sciences, 2022
http://www.iaees.org/publications/journals/piaees/articles/2022-12(2)/2-Basumatary-Abstract.asp The present study was carried out of cyanobacterial distribution in three different selected sites of Gossaigaon subdivision, BTR, Assam, India, during June 2015-July 2016 covering four different seasons only in aquatic environment. Altogether 92 species, belonging to 34 genera and 10 families were found. The maximum number of species was recorded from the family Nostocaceae with 25 species. Among these 42 were simple non-heterocystous, 50 were heterocystous filamentous. Among non-heterocystous forms 36 species were unicellular colonial forms. Studies say habitats have distinct cyanobacterial microflora, but the different sites in different geographical regions evidently fluctuate in their diversity as well as in local climatic conditions. Cyanobacteria can be used for practical purposes in different ways. Even in many countries, cyanobacteria are harvested locally from lake, pond and river to use in different purposes.
CYANOBACTERIAL BIODIVERSITY FROM DIFFERENT FRESHWATER PONDS OF THANJAVUR, TAMILNADU (INDIA
Cyanobacterial biodiversity from different freshwater ponds of Thanjavur, Tamilnadu (India). Studies on the cyanobacterial biodiversity of 5 different freshwater ponds in and around Thanjavur, Tamilnadu during summer month (June, 2004) has been made and compared their variations among five different ponds. In addition, certain physico-chemical parameters of pond waters such as dissolved oxygen, net productivity, pH, carbonate, bicarbonate, nitrate, nitrite, total phosphorus, inorganic phosphorus etc. were also analyzed and statistically compared with the cyanobacterial diversity. Totally 39 species of 20 genera of cyanobacteria were recorded in all 5 different ponds. Only 6 species of cyanobacteria were identified in Pond 1 (Dabeerkulam), where a massive bloom of Microcystis aeruginosa was recorded, which had a significant effect in reducing the other cyanobacterial population. As many as five species namely Aphanothece microscopica, Synechocystis aquatilis, Merismopedia glauca, Oscillatoria limnetica and O. subbrevis were common in all the ponds surveyed except in Pond 1.
India is one of the mega biodiversity country in the World, having almost all possible kind of climatic bariations with a great diversity of microbes especially the Cyanobacteria. Marine Cyanobacteria were isolated from water samples of Thondiyakadu coast and Valavanaru estuary located at Muthupet Mangrove environment, south east coast of India. Totally thirty five marine Cyanobacteria were isolated by spread plate method of ASN III agar medium. Physico chemical parameters of the water samples were analysed. The maximum number of Cyanobacterial species in both of site areas such as Osillatoria acuminata, O.animalis, O.brevis, O.formosa, O.okemi, O.limosa, O.limetica, O.rubescens, O.saline, O. subbrevis, Lynbya confervoides, L.majuscula and L.putealise, were recorded.
Indian Journal of Microbiology, 2007
The biodiversity of epilithic cyanobacteria from one of the unexplored habitats of freshwater streams of Kakoijana reserve forest of Assam, India was estimated. This paper lists a total of 29 species representing 18 genera of 12 families and 4 orders as per recent system of classifi cation. Morphological descriptions, common habitats and distribution pattern were described for each species identifi ed that were represented systematically. Of these 29 species, 11 were unicellular, 9 non-heterocytous fi lamentous and 9 heterocytous fi lamentous forms. All the unicellular (Aphanocapsa crassa, A. muscicola, Aphanothece nidulans, A. saxicola, Chlorogloea purpurea, Chroococcus cohaerens, C. minimus, C. minor, Cyanobacterium cedrorum, Cyanocystis versicolor and Gloeocapsopsis crepidinum) and 13 (Calothrix epiphytica, C. scopulorum, Leptolyngbya boryana, L. calotrichoides, L. fragilis, L. notata, Lyngbya arboricola, Nostoc humifusum, N. oryzae, N. punctiforme, Parthasarathiella prolifi ca, Porphyrosiphon ceylanicus and Scytonema millei) of the remaining 18 species were recorded for the fi rst time as freshwater epiliths. While, 5 species (Hapalosiphon welwitschii, Leptolyngbya tenuis, Oscillatoria pseudogeminata, Phormidium laetevirens, Tolypothrix fragilis) and 8 species (Aphanothece saxicola, Calothrix scopulorum Chlorogloea purpurea, Chroococcus minor, Gloeocapsopsis crepidinum, Leptolyngbya calotrichoides, L. fragilis and L. tenuis) were reported earlier as freshwaterand marine-epilithic forms respectively. All are new records for Assam except 6 species (A. nidulans, H. welwitschii, N. punctiforme, N. oryzae, O. pseudogeminata and P. ceylanicus), while 3 species (C. purpurea, L. boryana and L. calotrichoides) are new records for India. Six nitrogen fi xing heterocytous forms such as, C. epiphytica, C. scopulorum, N. humifusum, N. punctiforme, N. oryzae and S. millei, were common to the neighboring paddy fi elds.
Significance of cyanobacterial diversity in different ecological conditions of Meghalaya, India
Journal of Applied and Natural Science
The present study deals with preliminary investigation of cyanobacterial diversity in Meghalaya. A total of 75 samples were collected from 10 different ecosystems and analyzed. 65 strains of cyanobacteria isolated under 11 genera include Nostoc, Anabaena, Calothrix, Cylindrospermum, Gleocapsa, Fischerella, Plectonema, Tolypothrix, Stigonema, Loriella and Westiellopsis. Nostoc was most abundant. Diversity analysis indicated maximum Shannon’s diversity index (H) in Mawlai. Highest Simpson’s diversity index was seen in Sung Valley (0.75). Both Shannon’s and Simpson’s diversity indices were lowest in Mairang. Richness was highest in Sung valley and Syntuksiar with both the sites supporting 17 strains each. Although, highest diversity was recorded from Mawlai, richness recorded at this site was only 11 strains thereby indicating richness need not be a function of diversity in this region. This study revealed the cyanobacterial strains, which can withstand acidic pH and prevail in the reg...
Genetic Diversity of Marine and Fresh Water Cyanobacteria from the Gujarat State of India
Advances in Bioscience and Biotechnology, 2014
Cyanobacteria from habitats within Gujarat have been poorly studied with regard to their diversity. In the present investigation eight morphologically distinct cyanobacterial isolates were obtained and characterized from the fresh water and marine habitats. Identification was performed based on morphological features and on 16S rDNA sequences analysis. A phylogenetic tree based on 16S rDNA sequence of cyanobacterial isolates was prepared. Phylogenetic analysis clustered the eight morphologically distinct isolates into two distinct groups thus highlighting the importance of both morphological and genetic methods in studying cyanobacterial diversity.
Some New and Interesting Cyanobacteria from Baghjhoda Pond, Eastern Nepal
Himalayan Journal of Science and Technology , 2017
s Cyanobacteria of BaghJhoda pond in three different seasons hav been studied. A total of 8 cyanophycean algae under 6 genera viz Anabaena Aphanocapsa Chroococcus Oscillatoria Phormidium Spirulina Anabaena, Oscillatoria ., , , , , and were recorded. and were dominant genera and occurred in all three seasons All the 8 taxa were new for the study area and Phormidium. Anabaena affinis Anabaena subcylindrica and were new records for Nepal.
Environmental Engineering Research
The recent realization of immense biotechnological potential has made cyanobacteria the organisms of choice for research and development in the fields of biofertilizers, food and feed, energy production, fine chemicals, pharmaceuticals and bioremediation etc. This necessitates a study of cyanobacterial diversity for finding strains with different potentials and characteristics to suit their varied applications. Cyanobacterial population in 13 different sites within the state of Meghalaya was studied as a preliminary investigation of diversity in the state. Ninety seven samples were collected from different ecological niches which yielded 147 isolates out of which a total of 93 strains belonging to 11 genera were documented. These are Nostoc,