2001 Directory                                                        Faculty Information Page 2001
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(Photo of Dr. Bharathan)
(IUP Seal)
Dr. Narayanaswamy Bharathan

Assist. Prof. of Biology

Indiana Univ. of PA



Electronic Mail Address



Office: (724) 357-2584
Biology Department Office: (724) 357-2352
FAX: (724) 357-5700


Semester Schedule

Office Hours

Teaching Schedule


IUP Campus Address

319 Weyandt Hall
Department of Biology
Indiana University of Pennsylvania
Indiana, Pennsylvania 15705

Professional Interests and Formal Education

Field: Plant-microbe interactions

         Research interests include basic and applied aspects of plant - microbe interactions; fungal genetics, plant and fungal molecular virology. Long term goals include isolation and characterization of virus genes; production of transgenic plants and identify extra-chromosomal genetic elements from economically important plant viruses and plant pathogenic fungi, their role in conferring race specificity, pathogenicity and or hypovirulence, and potential use of specific cloned nucleic acid sequences from hypovirulent strains in the biological control of the fungus.

         Current research projects include
1) Characterization and molecular analysis of the genome of the Tomato Mosaic virus (ToMV) using reverse transcription PCR.
2) Comparative analysis of DNA homology to establish taxonomic relationships of fungi. The specific genes, total nuclear DNS, and or plasmids of various species or isolates could be compared by sequencing or nucleic acid hybridization.
3) Past experience with Rhizoctonia solani system suggests that transposable elements (Ty) exist in plant pathogenic fungi, and they could be involved in the activation and inactivation of genes for pathogenicity, or race specificity. Filamentous fungi generally contain small fraction of repetitive sequences, which are primarily composed of genes for rDNA, but which also include Ty elements. If the homology that exists between Ty elements in yeast and some higher eukaryotes is general, it will be possible to detect these elements in filamentous fungi by searching for homology between the non-ribosomal repetitive DNA and a cloned Ty element. Alternatively, since chromosomal location of at least some copies of Ty will differ among individuals, such elements could be detected by RFLPs.

B.S.   - 1977 G. B. Pant University of Agriculture & Technology, India
             Major: Plant Protection
M.S. - 1980 G. B. Pant University of Agriculture & Technology, India
             Major: Plant Pathology
Ph.D. - 1989 University of Maine, Orono, Maine
             Major: Molecular Virology

Biology Department Web Site Maintainer: Dr. Ray L. Winstead
Direct e-mail Link: RWinstea@grove.iup.edu