Browsing by Author "Chandramohan, D."
Now showing items 1-20 of 86
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A brief review of devices for wave measurement at sea
Nayak, B.U.; Chandramohan, D. (1986) -
A deep-sea bacterium with unique nitrifying property
Ram, A.; LokaBharathi, P.A.; Nair, S.; Chandramohan, D. (Indian Academy of Sciences, 2001)Sediment cores collected from the Central Indian Basin (10°1¢–10°2¢S, 75°59¢–76°2¢E) harboured a high population of nitrifying bacteria which ranged from 103 to 107 cfu per gram dry weight. This high density could contribute ... -
A global census of marine microbes
Amaral-Zettler, L.; Artigas, L.F.; Baross, J.; LokaBharathi, P.A.; Boetius, A.; Chandramohan, D.; Herndl, G.; Kogure, K.; Neal, P.; Pedros-Alio, C.; Ramette, A.; Schouten, S.; Stal, L.; Thessen, A.; De Leeuw, J.; Sogin, M. (Wiley-Blackwell, 2010)In this chapter we provide a brief history of what is known about marine microbial diversity, summarize our achievements in performing a global census of marine microbes, and reflect on the questions and priorities for the ... -
A preliminary study of anaerobic thiosulfate-oxidising bacteria as denitrifiers in the Arabian Sea
LokaBharathi, P.A.; Chandramohan, D.; Nair, S. (Taylor & Francis, 1988)Bacteria which oxidize thiosulfate and reduce nitrate (TONRB) and bacteria which oxidize thiosulfate and denitrify (TODB) sampled at 5-, 100-, 200-and 300-m depths were enumerated in agar shake cultures by colony counting ... -
Abundance and production of particle-associated bacteria and their role in a mangrove-dominated estuary
DeSouza, M.J.B.D.; Nair, S.; LokaBharathi, P.A.; Chandramohan, D. (Inter-Research, 2009)A 1 yr study was carried out in the mangrove-dominated, tropical Mandovi estuary (Goa, India) to assess the contribution of particle-associated bacteria (PAB) to the system’s variability in terms of abundance and productivity. ... -
Abundance, viability and culturability of Antarctic bacteria
LokaBharathi, P.A.; DeSouza, M.J.B.D.; Nair, S.; Chandramohan, D. (Department of Ocean Development, New Delhi, India, 1999)The viability of total number of bacteria decide the mineralisation rate in any ecosystem and ultimately the fertility of the region. This study aims at establishing the extent of viability in the standing stock of the ... -
Anaerobic sulfide-oxidation in marine colorless sulfur-oxidizing bacteria
LokaBharathi, P.A.; Nair, S.; Chandramohan, D. (Springer, 1997)Colorless sulfur-oxidizing bacteria are ubiquitous in Indian waters and have the ability to oxidize sulfide under anaerobic conditions. These bacteria can not only mediate the sulfur cycle oxidatively but also the nitrogen ... -
Anti-bacterial compounds from the sponge Haliclona sp.
Parameswaran, P.S.; Kamat, S.Y.; Chandramohan, D.; Nair, S.; Das, B. (New Delhi: Oxford & IBH, 1992)The crude methanolic extract of the sponge Haliclona sp., collected off Gujarat coast exhibited promising anti-viral (in vitro, 75%) and anti-bacterial properties Partitioning of the extract between various organic solvents, ... -
Antibacterial and antifungal activity of streptomycetes isolated from Portonova coastal environment. Papers presented in the symposium held at Cochin, India, 16-17 September 1993
Lakshmanaperumalsamy, P.; Chandramohan, D.; Natarajan, R. (Society of Fisheries Technologists (India), Cochin, 1994)The antibacterial and antifungal activities of 518 streptomycetes strains were tested against Bacillus circulans, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Saccharomyces cerevisiae and Fusarium ... -
Assessment of viability in the bacterial standing stock of the Antarctic Sea from the Indian side
LokaBharathi, P.A.; Nair, S.; DeSouza, M.J.B.D.; Chandramohan, D. (Ifremer/ CNRS/ IRD/ Editions scientifiques et medicales Elsevier SAS. Tous droits reserves, 2001)During the austral summer, the bacterial population along the cruise track extending from 70 degrees S and 18 degrees E to 30 degrees S and 35 degrees E are examined. During the cruise, three distinct fractions of the ... -
Association of marine fungi on timber panels treated with perspectives
Raghukumar, S.; Santhakumaran, L.N.; Chandramohan, D. (New Delhi: Oxford & IBH, 1988) -
Autotrophic and heterotrophic characteristics in a polluted tropical estuarine complex
Ramaiah, Neelam; Ramaiah, N.; Chandramohan, D.; Nair, V.R. (Academic Press, 1995)Some species of microbial heterotrophic communities (14C glucose uptake and respiration; viable nad total bacterial numbers) and autotrophic communities (primary production rate, chlorophyll a, phytoplankton cell counts ... -
Bacterial abundance, communities and heterotrophic activities in the coastal waters off Tamil Nadu
Ramaiah, N.; Raghukumar, C.; Sheelu, G.; Chandramohan, D. (NISCAIR, CSIR, 1996)Culturable aerobic heterotrophic bacterial (CAHB) numbers, total direct counts (TDC), bacterial generic composition and uptake of labelled glucose by natural microbial assemblages were studied from a few selected coastal ... -
Bacterial bioluminescence in marine pollution assessment
Ramaiah, N.; Chandramohan, D. (Publ. and Inf. Dir., New Delhi, India, 1994)Warm water marine luminous bacterial species, particularly Vibrio harveyi, V. fischeri and Photobacterium leiognathi, are easy to isolate, maintain and handle in the laboratories without strict temperature requirements, ... -
Bacterial flora of Dona Paula, India using numerical profiles
LokaBharathi, P.A.; Nair, S.; Chandramohan, D. (Japanese Society of Fisheries Science, 1990) -
Bacterial flora of pond reared Penaeus indicus (Milne Edwards)
Singh, I.S.B.; Lakshmanaperumalsamy, P.; Chandramohan, D. (Oxford and IBH, 1998)The population size, generic diversity and potential to produce hydrolytic enzymes of heterotrophic bacteria associated with pond reared Penaeus indicus was worked out following standard bacteriological procedures. ... -
Bacterial growth efficiency in a tropical estuary: Seasonal variability subsidized by allochthonous carbon
Ram, A.S.P.; Nair, S.; Chandramohan, D. (Springer, 2007)Bacterial growth efficiency (BGE) is a key factor in understanding bacterial influence on carbon flow in aquatic ecosystems. Intra-annual variability in BGE, and bacteria-mediated carbon flow in the tropical Mandovi and ... -
Bacterial growth efficiency in the tropical estuarine and coastal waters of Goa, southwest coast of India
Ram, A.; Nair, S.; Chandramohan, D. (Springer, 2003)Bacterial growth efficiency (BGE) is an index of organic carbon passing through bacteria in an aquatic system. BGE values of natural bacterioplankton assemblages were measured in tropical estuarine and adjacent coastal ... -
Bacteriology of ferromanganese nodules from the Indian Ocean
Chandramohan, D.; LokaBharathi, P.A.; Nair, S.; Matondkar, S.G.P. (Taylor & Francis, 1987)Bacteriological investigations of the ferromanganese nodules collected from the Indian Ocean indicate that microbial populations associated with the nodules are, in general, comparable to those of the Pacific and Atlantic ... -
Barcode of life: Advancing species identification and discovery
Chandramohan, D. (Allied, 2006)