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Contact information

 

O.N. Tiwari
Scientist & PI DBT & ICAR Project

Microbial Resources Division

Laboratory :
Fresh Water Cyanobacteria/Microalgae

Institute of Bioresources and Sustainable Development (IBSD),
Takyelpat, Imphal, Manipur-795001

Phone No :
+91385-2446122
Ext – 28
Fax : +91385 – 2446120/21
Mobile : 09862564743
Email :
ontiwari1@rediffmail.com
ont.ibsd@nic.in

 

 

O.N. Tiwari

ON Tiwari

O.N. Tiwari is engaged in Cyanobacteria research which possess great morphological and metabolic diversity. These characteristics have great biological significance and have been subjected to attention for more than a century.

Every day, many more novel characteristic of these organisms are revealed for large scale application to overcome many of the problems which we are facing today such as food, energy medicine and environmental degradation. Whether it be industry or agriculture or in food, BGA play an important role.

The use of recent biotechnological technique, including DNA recombination have produced strains that possess an optimal set of properties for their maximum use in economic development and environment management like waste, treatment,  land reclamation, purification of polluted waters, production of fine chemicals, atmospheric fixation of nitrogen, production of methane fuel, conversion of solar energy, therapeutic function etc.

Extensive research on different fundamental and applied aspect of algae has demonstrated that algal biomass can be used for this diverse application. In many cases there is utilization of whole algal biomass or certain valuable constituents are extracted including metabolites and enzyme.

A number of processes have been developed for algal mass cultivation and isolation of valuable constituents from these organisms. Though, these organisms have a long history of existence and use, their transition from biology to biotechnology has been triggered off recently.

Microalgal biotechnology, in a broader sense is to make use of these organisms and their products and the development of commercial-scale microalgal culturing techniques for the production of bioactive compounds, aquaculture feed, fine chemical, renewable fuels, environmental application etc. some of the potential uses/valuable products from microalgae.

Area of research interest :

Isolation, physiological and biochemical characterization of cyanobacterial isolates of NE region of India for sustainable utilization viz., biofertilizer, natural colourant, soluble protein, biofuels etc and development of cyanobacterial value added products.

Selected Publication :

  1. Tiwari, O.N., Dhar, Dolly Wattal, Prasanna, Radha, Shukla, H.M., Singh, P.K. and Tiwari, G.L. (2000): Growth and nitrogen fixation by non-heterocystous filamentous  cyanobacteria of rice fields of Uttar Pradesh, India. Philippine Journal of Science, vol. 129 (2): pp. 101- 107.

  2. Tiwari, O.N., Prasanna Radha, Yadav, Ashok, Dhar, Dolly Wattal and Singh, P.K.  (2001): Growth potential and biocide tolerance of non-heterocystous filamentous Cyanobacterial isolates from rice fields of Uttar Pradesh, India.  Biol. Fertil. Soils. vol. 34: pp 291-295.

  3. Prasanna Radha, Dhar, Dolly Wattal, Dominic, T.K., Tiwari, O.N. and Singh, P.K. (2003): Isolation and characterisation of phycobiliprotein rich mutant of Cyanobacterium Synechocystis sp.  Acta Biologica Hungarica vol.54 (1): pp 113-120.

  4. Tiwari, O.N. and H. Tombi Singh (2005): Biodiversity of cyanobacteria in Loktak lake and rice fields of Manipur, India having acidic properties. PROC.  NAT.  ACAD. SCI.INDIA, 75 (B), III: pp 209-213.

  5. Dwivedi, C.P., Tiwari, O.N., Nayak, R, Dwivedi, S, Singh, A. and Sinha, S.K.  (2005): Effect of green manures of Sesbania rostrata and Vigna radiata and Biofertilizers on soil sustainability and crop productivity in Rice-Wheat cropping system. Physiol. Mol. Biol.Plants, 11 (1): pp 141-147.

  6. Tiwari, O.N., and M. Rohinikumar Singh (2005): Biodiversity, occurrence and  succession of cyanobacteria. Jour.Ind. Bot. Soc.  84 (1-4): 107-110.

  7. Tiwari, O.N., Singh, B.V., Mishra, Upasana, Singh, A. K., Dhar, Dolly Wattal and Singh, P.K. (2005): Distribution and physiological characterization of cyanobacteria isolated from arid zones of Rajasthan,India.TropicalEcology,vol.46,(2): 165-171.

  8. S., Deepa Devi, Koijam, Laxmipriya, Singh, Avijeet, Tiwari, O.N. and  Singh, M.R.K. (2008): Cultural studies and partial characterization of acid tolerant cyanobactetia of germplasm of IBSD, Imphal, Manipur. Nat. Jour. of Life Sciences, 5(2) , 169-181.

  9. Koijam, Laxmipriya, S., Deepa Devi, Singh, Avijeet, Tiwari, O.N. and  Singh, M.R.K. (2009): Modern characteristic features of cyanobacteria with special emphasis on reproduction and thallus structure. Jorn. Plant. Repro. Boil. 1 (1),53-57.

  10. Tiwari, O.N., Oinam, Gunapati ,Koijam, Laxmipriya, S.,Deepa Devi,  Singh, Avijeet  (2009): Cyanobacterial biodiversity, conservation and possible commercial exploitation of Indian region falling Indo-Burma biodiversity hotspots. Biosci. Biotech. Res. Comm.  Vol (2) No. (1) 5-32.