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Dr. Krishnamurthi S
Microbiology and microbial ecology

Write-up of research and development interests/focus, past and present goals:

The lab is engaged in research work related to understanding structure of microbial communities in different marine habitats of the country as systematic sampling of these sites is lacking and diversity data pertaining to these ecosystems are scanty. One of the aims is to understand bacterial diversity from Western Ghats that are one of the major biodiversity hot spots of the world. We aim to focus on sampling selected niches from coastal part of the state Goa and attempt to cultivate hitherto “uncultivated and/or difficult to culture” bacteria. One of our targets is to utilize this overwhelmingly complex bacterial diversity for discovering novel biomolecules with applications in clinical and/or pharmaceutical industry with the premise that “marine habitats offer an increased opportunity for discovering novel biomolecules in lieu of the unique selective pressures of the marine ecosystem where chemical and physical conditions differ significantly from the terrestrial environment that have resulted in production of novel compounds to aid in their survival”. 


The emphasis of the research group is also concentrated on detailing the abundant bacterial fraction from various environmental habitats using molecular tools such as FISH and CARD-FISH in collaboration Max Planck Institute of Marine Microbiology, Bremen. These techniques are free from biases of PCR based methodologies and can help detect the uncultivable and/or viable but not culturable bacterial cells from phylum to genus level depending on the specificity of the probes.

Significant recognition: Awards, fellowships, international funding of distinction, technologies transferred/licensed etc.:

Awarded the Max Planck Group (MPG)-DST visiting fellowship for the year 2011

Selected list of Publications and Patents:

  • Krishnamurthi S, Spring S, Anil Kumar P, Mayilraj S, Klenk H-P & Suresh K & Chakrabarti T (2013): Desulfotomaculum defluvii sp. nov., a sulphate reducing bacterium isolated from the subsurface environment of a landfill- Int. J. Syst. Evol. Microbiol (In Press).

  • Krishnamurthi & Chakrabarti (2013): Diversity of Bacteria and Archaea from a landfill in Chandigarh, India as revealed by culture-dependent and culture-independent molecular approaches- Syst. Appl. Microbiol 36, 56-68.

  • Krishnamurthi S, Bhattacharya A, Schumann P & Chakrabarti T (2012): Microbacterium immunditiarum sp. nov., a novel actinobacterium isolated from a landfill surface soil.- Int. J. Syst. Evol. Microbiol 62, 2187-2193.

  • Kumar N R, Gomez-Gil B, Spröer C, Kumar N D, Krishnamurthi S, Nair S, Roque A (2011): Vibrio plantisponsor sp. nov., a diazotrophic bacterium isolated from a mangrove associated wild rice (Porteresia coarctata Tateoka)- Syst Appl Microbiol, 34: 487-493.

  • Krishnamurthi S, Ruckmani A and Chakrabarti T (2010): Psychrobacillus gen. nov. and proposal for reclassification of Bacillus insolitus Larkin & Stokes, 1967, B. psychrotolerans Abd-El Rahman et al., 2002 and B. psychrodurans Abd-El Rahman et al., 2002 as Psychrobacillus insolitus comb. nov. Psychrobacillus psychrotolerans comb. nov. and Psychrobacillus psychrodurans comb. nov. - Syst Appl Microbiol, 33: 367-373.

  • Vaishampayan P, Probst A, Krishnamurthi S, Ghosh S, Osman S, McDowall A, Mayilraj S & Venkateswaran K (2010): Bacillus horneckiae sp. nov., isolated from a clean room where the Phoenix spacecraft was assembled - Int. J. Syst. Evol. Microbiol, 60: 1031-1037.

Present group members:

Ashish Verma: JRF

Poonam Mual: Project Assistant

Anup Kumar Jha: Project Assistant

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