DR. DHRUVA KUMAR JHA

Contact Details

Educational Profile

• M. Sc.
• Ph. D.

Title of Ph.D. Thesis

Professional Experience

• Teaching Experience
1. 17 years (M.Sc. and M.Phil courses)


• Research Experience
1. 23 years
• Research Guidance

Course	Degree Awarded	Working
M.Sc.	10	01
Ph. D.	05	07

Scholarship/Fellowship awarded

• Merit Scholarship, Govt. of Bihar.
• JRF/SRF by the Department of Environment, Government of India.
• SRF by the CSIR, New Delhi
• Visiting Associateship, UGC, New Delhi 1994.
• UGC visiting Fellow, Dibrugarh University, India,2003, 2004.

Fields of Specialization

Microbial Ecology and Plant Pathology

Areas of Current Interest

1. Plant-Microbe Interactions (Arbuscular mycorrhizal PGPR, Endophytes, Pathogens)
2. Ecology, Biodiversity and Molecular Biology of Microbes.

Professional Society Membership

1. Mycorrhiza Net Work, Asia.
2. Indian Society for Soil Biology and Ecology (Life Member)
3. Botanical Society of Assam
4. Assam Science Society (Life Member)
5. International Society for Conservation of Natural Resources (Life Member).
6. Indian Phytopathological Society.
7. International Society for Tropical Ecology
8. Association of Microbiologists of India (Life Member)
9. Indian Mycological Society
10. North East Biotechnological Society (Life Member)

Professional Society Activity

• Organized Annual Technical Session of Assam Science Society as Organizing Secretary.1999.
• Joint Convener of Annual Technical Session Committee of Assam Science Society (2003-2005)
• Organized 'National Conference on Current Trends of Research in Science and Technology', January 28-29 2005, Gauhati University.
• Joint Secretary, North East Biotechnological Association (2004-2005)
• Member Editorial Board of Journal of Advances in Plant Sciences (Botanical Soc. Of Assam)
• Edited Book of Abstracts of 49th and 50th Annual Technical Sessions of Assam Science Society.
• Associate Editor, Journal of North East Biotechnological Association (2004-2005).
• Organized National Seminar on Value Addition to Bio resources of North East India and Cold Chain, May 2006
• President Botanical Forum, Department of Botany, G.U.
• Associate Editor, World Journal of Agricultural Sciences, International Digital Organization for Scientific Information, Pakistan
• Associate Editor (2008-2012), Advances in Environmental Biology (ISSN 1995-0756), American Eurasian Network for Scientific Information, Jordan

Member of Academic Bodies of the University

• Departmental Advisory Committee, Department of Botany, Gauhati University
• Phil. Committee, Gauhati University
• Ph.D. Committee, Gauhati University
• Departmental Research Committee, Department of Botany, Gauhati University
• Committee of Courses of Studies (P.G., Botany), Department of Botany, Gauhati University
• Board of Post Graduate Studies, Rajiv Gandhi University, Arunachal Pradesh
• Board of Undergraduate Studies in Botany, NEHU, Shillong

Symposium/Seminar/Workshops Attended

1. 1st Asian Conference on Mycorrhiza, Madras, India, 1988
2. 1st National Conference on Mycorrhiza, Hissar, India, 1990
3. Advanced Training on Research Methodologies in Mycorrhiza, TERI, New Delhi, 1995.
4. DST sponsored contact programme for the application of Molecular Microbial Techniques, JNU, New Delhi, 1997.
5. Refresher Course in Biotechnology, JNU, New Delhi, 1998.
6. Summer School sponsored by ICAR on "Soil Plant-Microbes ...... integrated nutrient Management, IARI, New Delhi, 1998.
7. National Seminar on Management Strategies of North Eastern Hill Ecosystems. ICAR Research Complex for NEH Region, Umiam, Meghalaya, India, 1998
8. International Symposium on Recent Trends in Plant Ecology and Biodiversity Research, NEHU, Shillong, India,2004
9. National Workshop on Conservation and Sustainable Utilization of Medicinal Plants of N.E. India, NEHU, Shillong, India, 2004.

Papers/Abstracts Contributed to National/International Seminar/Symposia

1. 1st Asian Conference on Mycorrhiza, Madras, India, 1988
2. 1st National Conference on Mycorrhiza, Hissar, India, 1990
3. Second National Conference on Mycorrhiza, Bangalore, India, 1991
4. 8th International Congress on Nitrogen Fixation, Tennessee, USA, 1990
5. 5th International Symposium on Nitrogen Fixation with Non-legumes, Florence, Italy, 1990
6. SAARC Countries Conference (Environment Management in developing Countries) Rai-Bareli, India, 1991
7. Second Asian Conference on Mycorrhiza, Thailand, 1991
8. 3rd European Symposium on Mycorrhiza, Sheffield, U.K. 1991
9. National Seminar on Management Strategies for North Eastern Hilly Ecosystems. ICAR Research Complex for NEH Region, Umiam, Meghalaya, India, 1998.
10. International Symposium on Recent Trends in Plant Ecology and Biodiversity Research, Shillong, India, 2004.
11. National Conference on Stress Physiology, NBU, India, 2004.

Project Handled

• Ex-Situ conservation and multiplication of rare, threatened and endemic plants of N.E. India, Ministry of Environment and Forests, Govt. of India, New Delhi
• Microbial and microphytic diversity of Deepor Beel; NESEC, Department of Space, Government of India, Shillong
• Diversity and community dynamics of microbes in the shallow subsurface soil of Jia Bharali River of Brahmaputra plains, Department of Science and Technology, Govt. of India, New Delhi.
• Enumeration of biodiversity, NHPC, Govt. of India.

Papers Published

• Status of VAM in degraded forest ecosystems. In: Mycorrhiza for Green Asia (Eds.A.Mahadevan, N. Raman & K. Natarajan). Proceeding vol. First Asian Conference of Mycorrhiza, Madras, India (1988) pp 50-52.
• Effect of soil degradation on soil microbes, symbionts and their activities. In: Current Trends in Mycorrhizal Research (Eds. B.L. Jalali & H. Chand). Proceeding vol. First National Conference on Mycorrhiza, Hissar, India (1990) pp 63-65.
• Nutrient release from litter and development of Mycorrhiza in more and less degraded forest communities. In: Current Trends in Mycorrhizal Research (Eds. B.L. Jalali & H. Chand). Proceeding vol. 1st National Conference on Mycorrhiza, Hissar, India (1990) pp 37-39.
• Role of Mycorrhiza in nutrient uptake: the phosphate ions. Journal of Science Research (BHU Platinum Jubilee, Special Vol.) (1991) 41A, 55-69.
• Ecology of soil microflora and Mycorrhizal symbionts in degraded forests at two altitudes. Biology & Fertility of Soil (1992) 12, 272-278.
• Soil microbial population and its activities in relation to altitude and forest degradation. Soil Biology and Biochemistry (1992) 24, 761-767.
• Mineral nutrition in tripartite interaction between Frankia, Glomus and Alnus at different soil phosphorus regimes. New Phytologist (1993) 132, 307-311.
• Mycorrhiza and plant disease control. In: Fungal Ecology and Biotechnology (Eds. Rai, B. et. al.) Rustogi Publications, Meerut, India (1993) pp 73-81.
• Ecology of vesicular-arbuscular Mycorrhiza. In: Microbe and Environment (Prof. R.R. Sinha's Festschrift vol.) (Eds. Prasad, A.B. & Bilgrami, R.S.). Narendra Publishing House, Delhi, India (1994) pp. 199-208.
• Studies on the mycoflora of some pulses. Indian J. Pl. Pathology (1996) 14, 26-32.
• Litter decomposition in relation to soil nitrogen dynamics in two tropical forest stands. Ecoprint (1996), 2: 41-44.
• Vesicular-arbuscular mycorrhizal status of some medicinal plants of India. J. Adv. Pl. Sci (2000), 2: 79-83.
• Trichothecium roseum: A potential agent for the biological control of soybean rust (Phakopsora pachyrhizi Syd.). Indian Phytopathology (2002), 55: 232-234.
• Structural and functional diversity in bacteria. In:Microbial Diversity Status and Potential Applications(Eds. Tiwari,S.C. & Sharma,G.D.) Scientific Book Centre & Publishers,Guwahati,India (2002) pp.54-67.
• Paphiopedilum fairieanum-The 'Lost Orchid' blooms in plains. Orchid News (2002) 18 (1&2): 11-12
• Collateral hosts of Phakopsora pachyrhizi in Meghalaya. Journal of Mycology and Plant Pathology (2004), 34:541-543.
• Bioaugmentation of Artocarpus chaplasa Roxb. seedlings using native arbuscular mycorrhizal fungi. Mycorrhiza News (2005), 17:15-18.
• Population numbers and activities of rhizospheric microorganisms in soils polluted by effluents coming out from Bongaigaon refinery and petrochemicals In: Stress Biology (Eds. Chakraborty U. and Chakraborty B.), Narosa Publishing House, New Delhi, India (2005) pp. 198-202.
• Biomass of the surface water macrophytes in relation to the water quality and primary productivity of the Deepor Beel, In: Science and Technology for Regional Development: Case for North-East India (Eds. Duloi S. K. and Mahanta C.),Published by Tezpur University, IIT Guwahati and C-MMACS, Bangalore (2005) pp. 146-150.
• Screening of soybean cultivars for rust resistance at two altitudes of Meghalaya, India. Journal of Mycopathological Research (2005), 43: 67-70
• The influence of Glomus and Azospirillum and P fertilizer on growth and Productivity of rice. Crop Research (2006) 31:212-217
• Antimicrobial evaluation of some fungal endophytes isolated from the bark of Himalayan Yew. World Journal of Agricultural Sciences (2006) 2(4): 489-494
• Response of rice crop inoculated with arbuscular mycorrhizal fungi and plant growth promoting rhizobacteria to different soil nitrogen concentrations. Mycorrhiza News (2007) 18:15-20
• Isolation and identification of antimicrobial agent producing bacterium from Taxus baccata rhizosphere antagonistic against clinically significant microbes. Indian Journal of microbiology(Springer) (2007) 47:317-322
• Antimicrobial activity of compounds produced by Aspergillus sp DEF 505, an endophyte on Taxus baccata. Journal of Microbial World (2007) 9: 287-292
• Interaction between Acaulospora and Azospirillum and their synergistic effect on rice growth at different sources and regimes of soil phosphorus. Mycorrhiza News (2008) 20: 6-12
• Evaluation of some chemicals against Pestalotiopsis disseminate causing grey blight disease of som. Sericologia (2008) 48 (1):113-117
• Antimicrobial endophytic fungal assemblages inhabiting bark of Taxus baccata L. of Indo-Burma mega biodiversity hotspot. Accepted, Indian Journal of Microbiology
• Arbuscular mycorrhizal associations of plants growing in soils polluted with paper mill effluents. Asian Journal of Microbiol. Biotech. Env. Science (2008) 10 (4): 911-920

Communicated

• Taxonomic and molecular studies of some arbuscular mycorrhizal fungi using RAPD-PCR analysis (to Indian Journal of Biotechnology).
• Life cycle of Phakopsora pachyrhizi, the causal organism of soybean rust disease (to J. of Mycopathological Research).
• Response of Artocarpus chaplasa to bioaugmentation with different inoculum levels of native arbuscular mycorrhizal fungi ( under consideration in New Forests)
• Isolation, characterization and activity of antimicrobial metabolites produced by an endophytic fungus isolated from Himalayan yew bark of Indo-Burma biodiversity hotspot (Mycological Research)

Under Preparation

• Effect of variation in weed density on the colonization of VA mycorrhizal fungi and growth of tree seedlings.
• Response of Toona ciliata seedlings to vesicular arbuscular mycorrhizal inoculation at different levels of organic amendments.
• Effect of different phosphorus sources and regimes on the efficiency of AM fungi.
• Diversity of arbuscular mycorihizal fungi in some tropical forests
• Management of soybean rust caused by Phakopsora pachyrhizi.
• Biodiversity of plant growth promoting rhizobacteria in rice fields of Assam, India.

Books Under Preparation

Citation