Naidu A.Rayapati
Assistant Professor/
Assistant Plant Pathologist
Research Specialty and Interests
Virus diseases of horticultural, vegetable and food crops. Virus characterization, diagnostics, plant-virus-vector interactions, development of integrated crop improvement strategies, virus diseases in international agriculture and capacity building in developing countries. Current focus is on virus diseases of grapevines and vegetables.
Professional Experience
- Assistant Professor, Department of Plant Pathology, 2004-present
- Research Associate, The University of Georgia, Athens, 1999-2004
- Consultant Virologist, Crop Protection Program, Department For International Development, United Kingdom, 1988-1999
- Scientist, Senior Scientist (Virology), Crop Protection Program, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), India/Malawi, 1992-1998
- Post-Doctoral Research Fellow, Department of Plant Pathology, University of Kentucky, Lexington, 1989-1992
- Post-Doctoral Fellow, ICRISAT, India, 1987-1989
Awards/Honors/Memberships
- International Service Award, The American Phytopathological Society, 2007
- Best Poster Award, Washington Association of Wine Grape Growers, 2007 & 2008
- Member, The American Phytopathological Society
- Member, The American Society for Virology
- Member, American Society for Enology and Viticulture
Selected Publications
Research Articles
Alabi, O.J., Lava Kumar, P. and Naidu, R.A. 2008. Multiplex PCR method for the detection of African cassava mosaic virus and East African cassava mosaic Cameroon virus in cassava. Journal of Virological methods (in press).
Alabi, O.J., Ogbe, F.O., Bandyopadhyay, R., Lava Kumar, P., Dixon, A.G.O., Jaqueline d’A. Hughes, J.d’A. and Naidu, R.A. 2008. Alternate hosts of African cassava mosaic virus and East African cassava mosaic Cameroon virus in Nigeria. Archives of Virology 153: 1743-1747.
Naidu, R.A., Sherwood, J.L. and Deom, C.M. 2008. Characterization of a vector non-transmissible isolate of Tomato spotted wilt virus. Plant Pathology 57: 190-200.
Naidu, R.A. and Kimmins, F.M. 2007. The effect of Groundnut rosette assistor virus on the agronomic performance of four groundnut (Arachis hypogaea L.) genotypes. Journal of Phytopathology 155: 350-356.
Naidu, R.A., Ingle, C.J., Deom, C.M. and Sherwood, J.L. 2004. The two envelope membrane glycoproteins of Tomato spotted wilt virus show differences in lectin-binding properties and sensitivities to glycosidases. Virology 319:107-117.
Naidu, R.A., Sawyer, S. and Deom, C.M. 2003. Molecular diversity in the RNA-2 genome segments of pecluviruses causing peanut clump disease in West Africa and India. Archives of Virology 148:83-98.
de Assis Filho, F.M., Naidu, R.A., Deom, C.M. and Sherwood, J.L. 2002. Dynamics of Tomato spotted wilt virus replication in the alimentary canal of two thrips species. Phytopathology 92:729-733.
Naidu, R.A., Miller, J.S., Mayo, M.A., Wesley, S.V. and Reddy, A.S. 2000. The nucleotide sequence of Indian peanut clump virus RNA 2: Sequence comparisons among Pecluviruses. Archives of Virology 145:1857-1866.
Deom, C.M., Naidu, R.A., Chiyembekeza, A.J., Ntare, B.R. and Subrahmanyam, P. 2000. Sequence diversity within the three agents of groundnut rosette disease. Phytopathology 90:214-219.
Bragard, C., Duncan, G.H., Wesley, S.V., Naidu, R.A. and Mayo, M.A. 2000. Virus-like particles assemble in plants and bacteria expressing the coat protein gene of Indian peanut clump virus. Journal of General Virology 81:267-272.
Naidu, R.A., Kimmins, F.M., Holt, J., Robinson, D.J., Deom, C.M. and Subrahmanyam, P. 1999. Spatiotemporal separation of groundnut rosette disease agents. Phytopathology 89:934-941.
Naidu, R.A., Robinson, D.J. and Kimmins, F.M. 1998. Detection of each of the causal agents of groundnut rosette disease in plants and vector aphids by RT-PCR. Journal of Virological Methods 76:9-18.
Naidu, R.A., Gowda, S., Satyanarayana, T., Boyko, V., Reddy, A.S., Dawson, W.O. and Reddy, D.V.R. 1998. Evidence that whitefly-transmitted cowpea mild mottle virus belongs to the genus Carlavirus. Archives of Virology 143:769-780.
Gowda, S., Satyanarayana, T., Naidu, R.A., Mushegian, A., Dawson, W.O. and Reddy, D.V.R. 1998. Characterization of the large (L) RNA of peanut bud necrosis tospovirus. Archives of Virology 143:2381-2390.
Hu, C.-C., Aboul-Ata, A.E., Naidu, R.A. and Ghabrial, S.A. 1997. Evidence for the occurrence of two distinct subgroups of peanut stunt cucumovirus strains: molecular characterization of RNA3. Journal of General Virology 78:929-939.
Satyanarayana, T., Mitchell, S.E., Reddy, D.V.R., Kresovich, S., Jarret, R., Naidu, R.A., Gowda, S. and Demski, J.W. 1996. The complete nucleotide sequence and genome organization of the M RNA segment of peanut bud necrosis tospovirus and comparison with other tospoviruses. Journal of General Virology 77:2347-2352.
Satyanarayana, T., Mitchell, S.E., Reddy, D.V.R., Brown, S., Kresovich, S., Jarret, R., Naidu, R.A. and Demski, J.W. 1996. Peanut bud necrosis tospovirus S RNA: complete nucleotide sequence, genome organization and homology to other tospoviruses. Archives of Virology 141:85-98.
Naidu, R.A., Hu, C.-C., Pennington, R.E. and Ghabrial, S.A. 1995. Differentiation of eastern and western strains of peanut stunt cucumovirus based on satellite RNA support and nucleotide sequence homology. Phytopathology 85:502-507.
Naidu, R.A., Collins, G.B. and Ghabrial, S.A. 1992. Peanut stunt virus satellite RNA: Analysis of sequences that affect symptom attenuation in tobacco. Virology 189:668-667.
Naidu, R.A., Collins, G.B. and Ghabrial, S.A. 1991. Symptom-modulating properties of peanut stunt virus satellite RNA sequence variants. Molecular Plant-Microbe Interactions 4:268-275.
Naidu, R.A., Collins, G.B. and Ghabrial, S.A. 1991. Nucleotide sequence analysis of a cDNA clone encoding the coat protein gene of peanut stunt virus. Plant Molecular Biology 17:175-177.
Review Articles
Goodin, M.M., Zaitlin, D., Naidu, R.A. and Lommel, S.A. 2008. Nicotiana benthamiana: its history and future as a model for plant–pathogen interactions. Molecular Plant-Microbe Interactions 21: 1015-1026.
Naidu, R.A., Kimmins, F.M., Deom, C.M., Subrahmanyam, P., Chiyembekeza, A.J. and van der Merwe, P.J.A. 1999. Groundnut rosette: a virus disease affecting groundnut production in sub-Saharan Africa. Plant Disease 83:700-709.
Naidu, R.A., Bottenberg, H., Subrahmanyam, P., Kimmins, F.M., Robinson, D.J. and Thresh, J.M. 1998. Epidemiology of groundnut rosette virus disease: current status and future research needs. Annals of Applied Biology 132:525-548.
Disease Notes/Briefs
Naidu, R.A. and G. Karthikeyan, 2008. First report of Wisteria vein mosaic virus in Wisteria sinensis in the United States of America. Online. Plant Health Progress. doi:10.1094/PHP-2008-0818-01-BR.
Mekuria, T., Martin, R.R. and Naidu, R. A. 2008. First report of the occurrence of Grapevine fanleaf virus in Washington State vineyards. Plant Disease 92: 1250.
Eni, A.O., Lava Kumar, P., Asiedu, R., Alabi, O.J. Naidu, R.A., Hughes, J. d’A. and Rey, M.E.C. 2008. First Report of Cucumber mosaic virus in yams (Dioscorea spp.) in Ghana, Togo, and Republic of Benin in West Africa. Plant Disease 92: 833.
Jarugula, S., Soule, M.J., Rowhani, A. and Naidu, R.A. 2008. First report of Grapevine leafroll-associated virus-9 in Washington State vineyards. Plant Disease 92: 485.
Naidu, R.A., G. Karthikeyan, G., Jarugula, S., Nelson, M. and Morrell, A. 2008. First report of the natural infection of Coreopsis auriculata ‘Nana’ with Lettuce mosaic virus in the United States of America. Plant Disease 92: 486.
Naidu, R.A., Alabi, O.J., Karthikeyan, G., Nelson, M. and Morrell, A. 2007. First report of natural infection of Monarda didyma with Impatiens necrotic spot virus in Washington State. On Line. Plant Health Progress. doi:10.1094/PHP-2007-1119-02-BR.
Kunkalikar, S., Poojari, S., Rajagopalan, P., Zehr, U.B, Naidu, R.A. and Kankanallu,
R.S. 2007. First report of Capsicum chlorosis virus in tomato in India. On Line. Plant Health Progress. doi:10.1094/PHP-2007-1204-01-BR.
Soule, M.J., Eastwell, K.C. and Naidu, R.A. 2006. First report of Grapevine leafroll associated virus-3 in American Vitis spp. grapevines in Washington State. Plant Disease 90: 1461.
Naidu, R. A., Deom, C. M., Sherwood, J. L. 2005. Expansion of the host range of Impatiens necrotic spot virus to peppers. Online. Plant Health Progress doi:10.1094/PHP-2005-0727-01-HN.
Naidu, R.A., Deom, C.M. and Sherwood, J.L. 2001. First report of Frankliniella fusca as a vector of Impatiens necrotic spot tospovirus. Plant Disease 85:1211.
Extension Publications
Naidu, R.A., O’Neil, S. and Walsh, D. 2008. Grapevine leafroll disease. WSU Extension Bulletin EB2027E. 20pp.
Naidu, R.A. 2007. Virus Diseases. In: Pest Management Guide for Grapes in Washington. WSU Extension Bulletin EB0762, pp.23-26.
Naidu, R.A. 2007. Web site on Grape viruses (http://winegrapes.wsu.edu/virology/)
Naidu, R.A. 2007. Accurate diagnosis is critical for the management of grapevine leafroll disease. WSU Wine and Grape Research and Extension News Letter 17 (3): 5-6.
Naidu, R.A. 2007. Through with thrips. http://www.oired.vt.edu/ipmcrsp/ New/ throughwiththrips1. htm.
Naidu, R.A. 2006. Grapevine leafroll disease in Washington State vineyards. WSU Wine and Grape Research and Extension News Letter 16: 5-8.
Naidu, R.A. 2006. Solutions to plant viruses improve crop management strategies. http://www.oired.vt.edu/ipmcrsp/successstories/plant_virus.htm.
Irrigated Agriculture Research and Extension Center,
Hamilton Hall 108(office) & 109 (lab)
Tel.: (509)786-9215
Fax: (509)786-9370
E-mail: naidu@wsu.edu
Teaching:
Diseases of Fruit Crops – Pl P 300. Fall (A/Y). This undergraduate course provides a comprehensive understanding of the diseases of grapes, tree fruits and small fruits grown in Washington State, caused by bacteria, fungi, nematodes, viruses and phytoplasmas. Class lectures and field visits provide inquiry-based, active learning of different aspects of diseases in fruit crops and relate specific concepts learned in the class room to 'real world' situations.
Professional Activities:
- Vice-Chair (2009) and Chair (2010), Virology Committee of the American Phytopathological Society.
- Member, Tropical Plant Pathology Committee (1996-1999) and Virology Committee of the American Phytopathological Society (2005-2008).
- Technical Committee Member, IPM CRSP (USAID) (2006-2009).
- Ad-hoc scientific reviewer for Phytopathology, Plant Disease, Plant Health Progress, International Microbiology and Journal of Virological Methods.
Current lab members
Olufemi Alabi, Graduate Student
Sridhar Jarugula, Graduate Student
Tefera Mekuria, Post-Doctoral Research Associates
Linga Reddy Gutha, Post-Doctoral Research Associates
Balakrishnan Natarajan, Visiting Scientist
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