Biotic Stress/Applied Plant Bio

Abstract

CS-3-1 - Extracellular vesicles: key mediators of plant-microbe interactions?

Sunday, July 15
1:03 PM - 1:23 PM

Exosomes are extracellular vesicles (EVs) that play a central role in intercellular signaling in mammals by transporting proteins and small RNAs. Plants are also known to produce EVs, particularly in response to pathogen infection. Our laboratory has developed methods for purifying EVs from plant leaves and are now characterizing their contents. These analyses have revealed that plant EVs are highly enriched in proteins involved in biotic and abiotic stress responses, and carry miRNAs and siRNAs. In addition, EV secretion is enhanced in plants infected with Pseudomonas syringae and in response to treatment with salicylic acid Recent work has established that EVs are rapidly taken up by filamentous pathogens from host plants and in vitro. These findings suggest that EVs represent an important component of the plant immune system. In this talk I will present our ongoing investigations into the possible functions of EVs, and our initial investigations into the genetic requirements for EV biosynthesis.


 

Co-Authors

Brian Rutter – Indiana University

Roger Innes

Professor
Indiana University

Presentation(s):

Send Email for Roger Innes


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CS-3-1 - Extracellular vesicles: key mediators of plant-microbe interactions?



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