Browsing by Author "Raghukumar, S."
Now showing items 1-20 of 68
-
A device for continuous microscopic examination of aquatic microorganisms
Raghukumar, S. (CSIR-NISCAIR, 1987)The device consists of a sealed microscopic mount provided with an inlet for liquid medium and an outlet, permitting continuous flow of the liquid. It permits observation of development of marine microorganisms such as ... -
A Mesohaline Thraustochytrid Produces Extremely Halophilic Alpha-Amylases
Shirodkar, P.V.; Muraleedharan, U.D.; Damare, S.R.; Raghukumar, S. (Springer, 2020)Halophilic bacteria are well known to produce highly salt-tolerant enzymes that have unusual applications in biotechnology. Production of halophilic proteins is generally not expected in mesohaline microorganisms. Ulkenia ... -
A report on the occurrence of Thraustochytrid species in Indian waters
Raghukumar, S.; Raghukumar, C. (Mycological Society of India, 1988)Thraustochytrids were isolated from 52 samples of 14 substrata from the coastal waters of Goa, Tamil Nadu and Lakshadweep islands and the Arabian Sea. A total of 9 species are reported in this paper. These are: Corallochytrium ... -
Abundance of Thraustochytrid fungi in the Arabian Sea
Raghukumar, S.; Raghukumar, C.; Rajendran, A. (Academic Press, 1990) -
Abundance of thraustochytridsand bacteria in the equatorial Indian Ocean, in relation totransparent exopolymeric particles (TEPs)
Damare, V.S.; Raghukumar, S. (Blackwell Publishing, 2008)Thraustochytrid protists are often abundant in coastal waters. However, their population dynamics and substrate preferences in the oceanic water column are poorly understood.We studied the abundance and distribution of ... -
An epifluorescence microscopy method for direct detection and enumeration of the fungilike marine protists, the thraustochytrids
Raghukumar, S.; Schaumann, K. (American Society of Limnology and Oceanography, 1993) -
Apparent grazing losses of Labyrinthulomycetes protists in oceanic and coastal waters: An experimental elucidation
Damare, V.S.; Raghukumar, S. (Springer, 2015)Labyrinthulomycetes are unicellular eukaryotes known for their ability to synthesize polyunsaturated fatty acids that are essential for growth and development of zooplankton. But relationship of these microorganisms with ... -
Association of marine fungi on timber panels treated with perspectives
Raghukumar, S.; Santhakumaran, L.N.; Chandramohan, D. (New Delhi: Oxford & IBH, 1988) -
Association of the stramenopilan protists, the aplanochytrids, with zooplankton of the equatorial Indian Ocean
Damare, V.S.; Raghukumar, S. (Inter-Research, 2010)Thraustochytrids and aplanochytrids, belonging to the Labyrinthulomycetes of the Kingdom Stramenopila, have been frequently reported to occur as parasites or symbionts in a number of coastal invertebrates. Given the fact ... -
Association of thraustochytrids and fungi with living marine algae
Raghukumar, C.; Nagarkar, S.; Raghukumar, S. (Cambridge Univ Press, 1992)Occurrence of thraustochytrids, yeasts and mycelial fungi in six marine algae was studied. Thraustochytrids and mycelial fungi were recovered from non-surface-sterilized as well as surface-sterilized pieces of algae, whereas ... -
Bacterial abundance and production in the central and eastern Arabian Sea
Ramaiah, N.; Raghukumar, S.; Gauns, M. (Current Science Association, Bangalore, India, 1996)Seasonal and spatial variations in bacterial and picoplankton abundances and bacterial production (thymidine incorporation rates) were determined in the water column up to 150 m in several stations in the central and eastern ... -
Bacterivory: a novel dual role for thraustochytrids in the sea
Raghukumar, S. (Springer, 1992)Two thraustochytrids, Thraustochytrium striatum Schneider and Schizochytrium mangrovei Raghukumar, isolated in 1989 in axenic cultures using pine pollen in seawater from mangroves in Goa, India, were observed in continuous-flow ... -
Barnacle larval destination: piloting possibilities by bacteria and lectin interaction
Khandeparker, L.; Anil, A.C.; Raghukumar, S. (Elsevier, 2003)Modulation of metamorphosis in barnacles in response to cues of biological origin is established. The bacteria associated with the barnacles also have a role in such modulations. We isolated the bacteria, Pseudomonas ... -
Barotolerance of fungi isolated from deep-sea sediments of the Indian Ocean
Raghukumar, C.; Raghukumar, S. (Inter-Research, 1998)Two species of filamentous fungi, Aspergillus ustus (Bain.) Thoms and Church and Graphium sp., were isolated from calcareous animal shells at depths of 860 m in the Arabian Sea and 965 m in the Bay of Bengal. Laboratory ... -
Biotechnology of marine fungi
Damare, S.R.; Singh, P.; Raghukumar, S. (Springer, 2012)Filamentous fungi are the most widely used eukaryotes in industrial and pharmaceutical applications. Their biotechnological uses include the production of enzymes, vitamins, polysaccharides, pigments, lipids and others. ... -
Buried in time: Culturable fungi in a deep-sea sediment core from the Chagos Trench, Indian Ocean
Raghukumar, C.; Raghukumar, S.; Sheelu, G.; Gupta, S.M.; Nath, B.N.; Rao, B.R. (Elsevier, 2004)The recovery of culturable microorganisms from ancient materials, ranging from a few thousand to several million years old, has generated interest in the long-term survival capabilities of micrororganisms. We report the ... -
Cirrenalia basiminuta: A new lignicolous marine deuteromycete from the tropics
Raghukumar, S.; Zainal, A.; Jones, E.B.G. (Ingenta Connect Publication, 1988) -
Contribution of the thraustochytrid Corallochytrium limacisporum Raghu-kumar to microbial biomass in coral reef lagoons
Raghukumar, S.; Chandramohan, D.; Ramaiah, N. (CSIR-NISCAIR, 1987)ATP and organic carbon (OC) contents of cells of 5 isolates of thraustochytrids, including one of Corallochytrium limacisporum were estimated from cultures OC:ATP ratio in these isolates averaged 99 Based on these and the ... -
Deep-sea fungi as a source of alkaline and cold-tolerant proteases
Damare, S.R.; Raghukumar, C.; Muraleedharan, U.; Raghukumar, S. (Elsevier, 2006)Fungi from coastal environments have been widely studied with respect to the production of secondary metabolites and biotechnologically useful lignocellulolytic enzymes. A few studies on mycology of deep-sea sediments, ... -
Detection of the thraustochytrid protist Ulkenia visurgensis in a hydroid, using immunofluorescence
Raghukumar, S. (Springer, 1988)An immunofluorescence technique was employed to detect the thraustochytrid protist Ulkenia visurgensis (Ulken) Gaertner, originally isolated from an algal bed, in natural samples in Goa, India Collections were made monthly ...