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Santosh Revadi

Santosh Revadi
The most intriguing phase in an insect life especially a lepidopteran is, the physiological changes associated with ageing i.e., larval stage to adults. A freshly hatched neonate over-ride host plant defenses and predation risk in order to establish itself in a location with abundant food supply. While adults are determined to increase the fitness to encounter successful mate and eventually locate suitable host plants for their progenies. Interestingly, both larval and adult behaviors are chemically mediated, produced by host plants and conspecific opposite sex. Arguably complex but highly sensitive olfaction in these organisms exhibits weakest link when it comes to develop sustainable pest control strategies.

Presentation

I am interested in understanding chemically mediated interactions in the larval stages mainly host plant preferences and molecular basis to larval olfaction (odorant receptors) compared to adults.

Research

Using Egyptian cotton leafworm Spodoptera littoralis as a model species, I have been studying behavioral modulation in larva in response to sensory qualities from their host plants.

Current status: Extending the knowledge of larval modulation and host choice behaviors in adults from cotton leafworm to silver Y moth, Autographa gamma, a migratory pest in Sweden infesting sugar beets in Skåne.

My project is supported by Swedish Research Council, Formas (Early Career Mobility grant, 2017-19)

Background

B.Sc. (Agriculture) (2003-07): University of Agricultural Sciences (UAS), Dharwad,
Karnataka, India.

M.Sc. (Agricultural Entomology) (2007-2009): University of Agricultural Sciences (UAS), Bangalore-560 065, India.

Project Assistant (2009-2011): Center for Ecological Sciences, Indian Institute
of Science (IISc.) Bangalore, India.

Ph.D. (Insect Science and Biotechnology) (2011-2014): Università di Napoli Federico II, Napoli, Italy.

Post-Doctoral Researcher (2014- till date).

Selected publications

Giovanni Benelli, Santosh Revadi, Adriano Carpita, Giulia Giunti, Alfio Raspi, Gianfranco Anfora, Angelo Canale: Behavioral and electrophysiological responses of the parasitic wasp Psyttalia concolor (Szépligeti) (Hymenoptera: Braconidae) to Ceratitis capitata-induced fruit volatiles. Biological Control, 2012; 64(2):116-124.

Ometto, L., Cestaro, A., Ramasamy, S., Grassi, A., Revadi, S., Siozios, S., Moretto, M., Fontana, P., Varotto, C., Pisani, D., Dekker, T., Wrobel, N., Viola, R., Pertot, I., Cavalieri, D., Blaxter, M., Anfora, G., and Rotastabelli, O. 2013. Linking genomics and ecology to investigate the complex evolution of an invasive Drosophila pest. Genome Biology and Evolution. (5) 745-757.

Anusha Krishnan, Gautam Kumar Pramanik, Santosh V. Revadi, et al.,: High Temperatures Result in Smaller Nurseries which Lower Reproduction of Pollinators and Parasites in a Brood Site Pollination Mutualism. PLoS ONE, 12/2014; 9(12):e115118.

Santosh Revadi, Sébastien Lebreton, Peter Witzgall, Gianfranco Anfora, Teun Dekker, Paul G. Becher: Sexual Behavior of Drosophila suzukii. Insects 03/2015; 6(1): 183-196.

Santosh Revadi, et al.,: Olfactory responses of Drosophila suzukii females to host plant volatiles. Physiological Entomology, 2015; 40 (1).

Teun Dekker, Santosh Revadi, Suzan Mansourian, Sukanya Ramasamy, Sebastien Lebreton, Paul G. Becher, Sergio Angeli, Omar Rota-Stabelli, Gianfranco Anfora: Loss of Drosophila pheromone reverses its role in sexual communication in Drosophila suzukii. Proceedings of the Royal Society B: Biological Sciences, 2015; 282(1804).

Anusha Krishnan, Mahua Ghara, Srinivasan Kasinathan, Gautam Kumar Pramanik, Santosh Revadi, Renee M. Borges: Plant reproductive traits mediate tritrophic feedback effects within an obligate brood-site pollination mutualism. Oecologia, 2015; 179 (3).

Sukanya Ramasamy, Lino Ometto, Cristina M. Crava, Santosh Revadi, et al.,: The evolution of olfactory gene families in Drosophila and the genomic basis of chemical-ecological adaptation in Drosophila suzukii. Genome Biology and Evolution, (2016).

Mori Boyd, Whitener Alix, Leinweber Yannick, Revadi Santosh, Beers Elizabeth, Witzgall Peter, Becher Paul G. Enhanced yeast feeding following mating facilitates control of the invasive fruit pest Drosophila suzukii. Journal of Applied Ecology, (2016).


Contact
Non-Employee at the Institutionen för växtskyddsbiologi
Telephone: +4640-415268
Postal address:
Växtskyddsbiologi, Box 102
23053 Alnarp
Visiting address: Sundsvägen 16, Alnarp