About CCMB

Scientist Details

Contact Details

Name : Ramesh V Sonti

Room : E305

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Research Interests

Area of Research: My lab is interested in understanding the mechanisms of attack and defense in the interaction between plants and their pathogens. Our model is the interaction between the bacterial pathogen, Xanthomonas oryzae pv. oryzae (Xoo) and it host plant which is rice. A major focus of our current research is to identify the rice functions that are involved in induction of innate immunity and Xoo effector proteins that work inside rice cells to suppress innate immune responses. Of particular interest are immune responses that are induced by Xoo secreted rice cell wall degrading enzymes and lipolysaccharide. In addition, we have been been studying a number of other Xoo virulence factors. A rice variety, called Improved Samba Mahsuri, that has been developed by us in collaboration with the Directorate of Rice Research exhibits excellent resistance against Xoo and has been released for commercial cultivation.

Selected Publications

  • Gopaljee Jha, Hitendra Kumar Patel, Madhumita Dasgupta, Ramesh Palaparthi and Ramesh V. Sonti. 2009. Transcriptional profiling of rice leaves undergoing a hypersensitive response like reaction induced by Xanthomonas oryzae pv. oryzae cellulase. Rice. 2: DOI: 10.1007/s12284-009-9033-z. *These authors contributed equally to the work.

  • Gudlur Aparna, Avradip Chatterjee, Ramesh V. Sonti and Rajan Sankaranarayanan. 2009. A cell wall degrading esterase of Xanthomonas oryzae requires a unique substrate recognition module for pathogenesis on rice. Plant Cell. 21:1860-1873.

  • A. Das, N. Rangarajan and Ramesh V. Sonti. 2009. Multiple adhesin-like functions of Xanthomonas oryzae pv. oryzae are involved in promoting leaf attachment, entry and virulence on rice. MOLECULAR PLANT-MICROBE INTERACTIONS. 22: 73–85

  • R. M. Sundaram, M. R. Vishnupriya, S. K. Biradar, G. S. Laha, G. Ashok Reddy, N. Shobha Rani, N. P. Sarma and Ramesh V. Sonti. 2008. Marker assisted introgression of bacterial blight resistance in Samba Mahsuri, an elite indica rice variety. EUPHYTICA 160: 411-422. both authors contributed equally to this work.

  • Gopaljee Jha, R. Rajeshwari and Ramesh V. Sonti. 2007. Functional interplay between two Xanthomonas oryzae pv. oryzae secretion systems in modulating virulence on rice. MOLECULAR PLANT-MICROBE INTERACTIONS. 20: 31-40.

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