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BHASKAR BHADRA
Research Scientist, DuPont Knowledge Centre
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current
Research Scientist, DuPont Knowledge Centre, Hyderabad, India
Apr 2008-
past
Research Associate, Centre for Cellular and Molecular Biology, Hyderabad, India
Aug 2005-Apr 2008
education
Ph.D., Molecular Microbiology, Biotechnology, University of North Bengal, Siliguri, India
Jul 1999-Jul 2005
"Identification of nickel resistant genes in suitable gram-negative bacteria......"
awards and honors
research summary
1. Strain improvement for Biofuel production from yeast
2. Biodiversity and bioprospecting of microbes from environment
3. Development of yeast expression system
4. Xylitol and ethanol production from hemicellulose hydrolysate
5. Isolation of hemicelluloses from metagenome research
6. Development of microbe base biosensor for metal contamination
2. Biodiversity and bioprospecting of microbes from environment
3. Development of yeast expression system
4. Xylitol and ethanol production from hemicellulose hydrolysate
5. Isolation of hemicelluloses from metagenome research
6. Development of microbe base biosensor for metal contamination
research projects
Metabolic engineering of yeast for biofuel production
Establishing new pathway in yeast for production ethanol and butanol.
Methylotrophic yeast expression system
New methylotrophic yeasts were isolated from environment. Their methanol oxidase gene promoter was used to develop yeast expression system. The expression system 'Ogataea Ex Sys' was used to overproduce xylanase from Aureobasidium pullulans
Gene expression analysis in river water ecosystem
Nickel and zinc resistant bacterial population from Torsa river of north bengal was quantified for an year. The fluctuation of metal resistant bacterial population was coroborated with the micromolar concentration of zinc ion content of the river water. Few bacterial isolates with metal sensitive promoter was identified for development of biosensor.
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publications
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Sujogya K Panda, V Jyoti, Bhaskar Bhadra, Kinshuk C Nayak, Sisinthy Shivaji, Fred A Rainey, Subrata K Das
A novel aerobic, obligately mixotrophic, moderately thermophilic, thiosulfate-oxidizing bacterium, S10T, was isolated from hot-spring sediment samples collected from Atri, Bhubaneswar, India. The cells of this isolate stained Gram-negative and were strictl…
International journal of systematic and evolutionary microbiology. 2009 Sep
Ascogenous yeasts were isolated from a decaying mangosteen fruit (Garcinia mangostana L., Clusiaceae). Based on colony morphology and RAPD analysis, the strains were grouped into four groups (G-I, G-II, G-III and G-IV). Phenotypic properties and analysis o…
International journal of systematic and evolutionary microbiology. 2008 Nov
Preeti Chaturvedi, V Prabahar, R Manorama, Pavan Kumar Pindi, Bhaskar Bhadra, Zareena Begum, S Shivaji
A novel psychrophilic bacterium, designated strain DVS 3Y(T), was isolated from a moraine sample from the McMurdo Dry Valleys, Antarctica. Phenotypic and chemotaxonomic characteristics and data from a phylogenetic analysis based on 16S rRNA gene sequences …
International journal of systematic and evolutionary microbiology. 2008 Oct
AIMS: Isolation and identification of yeasts converting xylose to ethanol. METHODS AND RESULTS: A total of 374 yeasts were isolated from a variety of rotten fruits and barks of trees. Out of these, 27 yeast strains were able to assimilate xylose and produc…
Letters in applied microbiology. 2008 Jul
Twenty-five psychrophilic yeasts were isolated from the soil of Roopkund Lake, Himalayas, India. Two colony morphotypes were identified and representatives of 'morphotype 1' were identified as Cryptococcus gastricus. Representatives of 'morphotype 2', name…
Extremophiles : life under extreme conditions. 2008 May
Asporogenus yeast strains W113AT and W113B were isolated from the intestine of a dead Trinket snake. The two isolates showed 100% sequence similarity in the D1/D2 domain of the large-subunit (LSU) rRNA gene, internal transcribed spacer (ITS) 1-5.8S rRNA ge…
FEMS yeast research. 2008 May
A total of 239 yeast strains was isolated from 52 tree bark samples of the Medaram and Srisailam forest areas of Andhra Pradesh, India. Based on analysis of D1/D2 domain sequence of 26S rRNA gene, 114 strains were identified as ascomycetous; 107 strains we…
Current microbiology. 2008 May
Two bacterial strains, designated BBH5 and BBH7(T), were isolated from a deep-sea sediment sample collected from the Chagos Trench of the Indian Ocean (1 degrees 06' S 7 degrees 31' E). Based on their 16S rRNA gene sequence similarity (99.9%), level of DNA…
International journal of systematic and evolutionary microbiology. 2008 Jan
A total of 35 yeasts were isolated from the gut of beetles collected from Hyderabad city, India. Twenty of these yeasts utilized xylose as a sole carbon source but only 12 of these converted xylose to xylitol. The ability to convert xylose to xylitol varie…
Current microbiology. 2007 Nov
S Shivaji, Bhaskar Bhadra, R Sreenivas Rao, Preeti Chaturvedi, Pavan Kumar Pindi, Chandralata Raghukumar
Two bacterial strains, BBH6(T) and BBH9, were isolated from a deep-sea sediment sample collected from the Chagos Trench, Indian Ocean, at a depth of 5904 m. The two strains were closely related in their 16S rRNA gene sequences (99.7 %), belonged to one gen…
International journal of systematic and evolutionary microbiology. 2007 Aug
Heavy metal content analysis of River Torsa in India did not indicate any alarming level of toxicity for human consumption but revealed variation at the ppb level in different months. The variation in recoverable nickel and zinc resistant copiotrophic (or …
Archives of microbiology. 2007 Sep
The ascogenous yeast YS16T was isolated from a decaying papaya fruit. Phenotypic traits such as multilateral budding, spheroidal or elongate shape, pseudohyphae formation, asci with one or more ascospores, ability to ferment d-glucose, inability to assimil…
FEMS yeast research. 2007 Jun
Three ascomycetous yeast strains were isolated from decaying green wine grapes, collected from Hyderabad city in India. Two strains, YS9 and YS21, were identified as Kodamaea ohmeri and Candida fermentati, respectively. The third strain, YS12(T), differs f…
FEMS yeast research. 2007 May
A Gram-negative, rod-shaped, urea-dissolving and non-spore-forming bacterium, designated strain NiVa 51(T), was isolated from water of the River Torsa in Hasimara, Jalpaiguri district, West Bengal, India. On the basis of 16S rRNA gene sequence similarity, …
International journal of systematic and evolutionary microbiology. 2005 Sep
Some physico-chemical parameters of Kaljani River were studied in and around Alipurduar municipality. The principal characteristics of Kaljani River are high TSS, Mg-hardness, COD, and Phosphate 'P' Comparison of water quality parameters of the two rivers …
Journal of environmental biology / Academy of Environmental Biology, India. 2005 Apr
Shriparna Mukherjee, Bhaskar Bhadra, Ratna Chakraborty, Anirudra Gurung, Sudip Some, Ranadhir Chakraborty
The unregulated use of antibiotics, including therapeutic and prophylactic prescribing, in the fastest growing city of West Bengal, Siliguri, was studied indirectly from a random survey conducted on retail medicine sellers at their counters. Ciprofloxacin,…
Journal of environmental biology / Academy of Environmental Biology, India. 2005 Apr
A few physico-chemical and bacteriological parameters on certain locations of the river Torsa was studied. The major characteristics of Torsa river water were high alkalinity, high concentration of free ammonia with respect to albuminoid ammonia and the pr…
Journal of environmental biology / Academy of Environmental Biology, India. 2003 Apr
