College of Agricultural, Human, and Natural Resource Sciences

Department of Plant Pathology

Naidu A.Rayapati

Associate Professor/

Associate Plant Pathologist

Grape Virology

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

  • Associate Professor, Department of Plant Pathology, 2011-Present
  • Assistant Professor, Department of Plant Pathology, 2004-2011
  • 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:

  • International IPM Excellence Team Award, The 6th International IPM Symposium (2009).
  • International Service Award, American Phytopathological Society (2007).

Industry:

  • Third Prize for a research poster under Professional Category at the 2010 Washington Association of Wine Grape Growers Annual Meeting & Trade Show.
  • First Prize for a research poster under Professional Category at the 2008 Washington Association of Wine Grape Growers Annual Meeting & Trade Show.
  • First Prize for a research poster under Professional Category at the 2007 Washington Association of Wine Grape Growers Annual Meeting & Trade Show.

Membership:

  • Member, The American Phytopathological Society
  • Member, The American Society for Virology
  • Member, American Society for Enology and Viticulture
  • Member, The American Entomological Society

Selected Publications

Research Articles

Alabi, O. J., Al Rwahnih, M., Karthikeyan, G., Poojari, S., Fuchs, M., Rowhani, A., and Naidu, R. A. 2011. Grapevine leafroll-associated virus 1 occurs as genetically diverse populations. Phytopathology (accepted).

Lava Kumar, P., Hanna, R., Alabi, O.J., Soko, M.M., Oben, T.T., Vangu, G.H.P., Naidu, R.A. 2011. Banana bunchy top virus in sub-Saharan Africa: investigations on virus distribution and diversity. Virus Research (in press).

Alabi, O.J., Lava Kumar, P. and Naidu, R.A. 2011.Cassava mosaic disease: a curse to food security in sub-Saharan Africa. APSnet Features July 2011 (http://www.apsnet.org/publications/apsnetfeatures/Pages/cassava.aspx).

Karthikeyan, G., Alabi, O.J. and Naidu, R.A. 2011. Occurrence of Grapevine leafroll-associated virus 1 in two ornamental grapevine cultivars in Washington State. Plant Disease 95: 613.

Kunkalikar, S.R., Sudarsana, P., Bhanupriya M., Rajagopalan, P.A., Chen, T-C., Yeh, S-D., Naidu, R.A., Zehr, U.B. and  Ravi, K.S. 2011. Importance and genetic diversity of vegetable-infecting tospoviruses in India. Phytopathology 101: 367-376.

Gutha, L.R., Casassa, L.F., Harbertson, J.F. and Naidu, R.A. 2010. Modulation of flavonoid biosynthetic pathway genes and anthocyanins due to virus infection in grapevine (Vitis viniferaL.) leaves. BMC Plant Biology 2010, 10:187.

Jarugula, S., Gowda, S., Dawson, W.O. and Naidu, R.A. 2010. 3'-coterminal subgenomic RNAs and putative cis-acting elements of Grapevine leafroll-associated virus 3reveals 'unique' features of gene expression strategy in the genus Ampelovirus. Virology Journal 2010. 7:180.

Jarugula, S., Alabi, O.J., Martin, R.R. and Naidu, R.A. 2010. Genetic variability of natural populations of Grapevine leafroll-associated virus-2 in Pacific Northwest vineyards. Phytopathology 100:698-707.

Alabi, O.J., Lavakumar, P., Mgbechi-Ezeri, J.U., Naidu, R.A. 2010. Two new 'legumoviruses' (genus Begomovirus) naturally infecting soybean in Nigeria.  Archives of Virology 155: 643-656.

Alabi, O.J., Martin, R.R. and Naidu, R.A. 2010. Sequence diversity, population genetics and potential recombination events in Grapevine rupestris stem pitting-associated virus in Pacific Northwest Vineyards. Journal of General Virology 91: 265-276.

Naidu, R.A. and Mekuria, T.A. 2010. First report of Grapevine fleck virus from Washington vineyards. Plant Disease, 94: 784.

Mekuria, T.A. and Naidu, R.A. 2010. First report of grapevine virus sequences highly similar to Grapevine Syrah virus-1 from Washington vineyards Plant Disease, Vol. 94, No. 6: 787.

Damayanthi, T.A., Alabi, O.J., Rauf, A., and Naidu, R.A. 2010. The occurrence of Bean common mosaic virus and Cucumber mosaic virus in yardlong beans in Indonesia. Plant Disease.94: 478.

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

Mekuria, T.A. and Naidu, R.A. 2010. First report of grapevine virus sequences highly similar to grapevine syrah virus-1 from Washington vineyards. Plant Disease (in press).

Damayanthi, T.A., Alabi, O.J., Rauf, A., and Naidu, R.A. 2010. The occurrence of Bean common mosaic virus and Cucumber mosaic virus in yardlong beans in Indonesia. Plant Disease.94: 478.

Oben, T.T., Hanna, R., Ngeve, J., Alabi, O.J., Naidu, R.A. and Lava Kumar, P. 2009. Occurrence of banana bunchy top disease caused by the Banana bunchy top virus on banana and plantain (Musa sp.) in Cameroon. Plant Disease 93: 1076.

Damayanti, T.A. and Naidu R.A. 2009. Identification of Peanut bud necrosis virus and Tomato spotted wilt virus in Indonesia for the first time. Plant Pathology 58: 782.

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.

Book/Book Chapters

Richards, K.E., Deom, C.M. and Naidu, R.A. 2005. Genus: Pecluvirus. In: Virus Taxonomy-Classification and Nomenclature of Viruses. Eds. C.M. Fauquet, M.A. Mayo, J. Maniloff, U. Desselberger and L.A. Ball. Elsevier Academic Press, New York. pp1039-1042.

Sreenivasulu, P., Naidu, R.A. and Nayudu, M.V. 1989. Physiology of Virus Infected Plants.  New Delhi, India, South Asian Publishers. 164pp.

Variety Release

Deom, C.M., Kapewa, T., Busolo-Bulafu, C.M., Naidu, R.A., Chiyembekeza, A.J., Subrahmanyam, P., van der Merwe, P.J.A. 2006. Registration of ICG12991 Peanut germplasm line. Crop Science 46: 481.

Extension Publications

Naidu, R.A. 2009. Virus Diseases. In: Pest Management Guide for Grapes in Washington. WSU Extension Bulletin EB0762, pp.24-27.

Naidu, R.A. 2009. Podcasts on Grapevine fanleaf disease at http://wine.wsu.edu/virology/.

Naidu, R.A., O’Neil, S. and Walsh, D. 2008. Grapevine leafroll disease. WSU Extension Bulletin EB2027E. 20pp.

Naidu, R.A. 2008. Virus Diseases. In: Pest Management Guide for Grapes in Washington. WSU Extension Bulletin EB0762, pp.24-27.

Naidu, R.A. 2008. Combating grapevine leafroll disease. A podcast for vineyard managers at  http://wine.wsu.edu/virology/ .

Naidu, R.A. 2008. Grapevine Virus Diseases 101. Vine to Wine: Successfully establishing a vineyard or winery. DVD.   G. Hoheisel, K. Ringer, M. Olmstead, and J. Harbertson, eds.

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. 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.

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. 2005. Virus Diseases. In: Pest Management Guide for Grapes in Washington. WSU Extension Bulletin EB0762, pp.23-26.

 

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:

  • Chair (2010) and Vice-Chair (2009), 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, Plant Pathology, International Microbiology, European Journal of Phytopathology, Journal of Virological Methods, and American Journal of Enology and Viticulture.

Current lab members

Olufemi Alabi, Post-Doctoral Research Associate

Linga Reddy Gutha, Post-Doctoral Research Associates

Sridhar Jarugula, Post-Doctoral Research Associate

Sudarsana Poojari, Graduate Student

Bhanu Priya Donda, Graduate Student

Madhu Priyadarsini Kappagantu, Graduate Student

Elizabeth Swanson, Undergraduate Student

Andrew Schultz, Undergraduate Student

Elisa Cantu, High School Senior

Jessica Miklas, High School Senior

 

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Department of Plant Pathology, PO Box 646430, Washington State University, Pullman WA 99164-6430, 509-335-9541, Contact Us