Plant Roots Release Small Extracellular Vesicles with Antifungal Activity

Autor: Ramesh Bokka, Lilla Turiák, Antonietta Leone, Pasquale Del Gaudio, Alfredo Ambrosone, Immacolata Fiume, Gabriella Pocsfalvi, Marina Tucci, Monica De Palma, Michelina Ruocco
Rok vydání: 2020
Předmět:
Zdroj: Plants
Plants 9 (2020). doi:10.3390/plants9121777
info:cnr-pdr/source/autori:De Palma M., Ambrosone A., Leone A., Del Gaudio P., Ruocco M., Turiák L., Bokka R., Fiume I., Tucci M., Pocsfalvi G./titolo:Plant Roots Release Small Extracellular Vesicles with Antifungal Activity/doi:10.3390%2Fplants9121777/rivista:Plants/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume:9
Volume 9
Issue 12
Plants, Vol 9, Iss 1777, p 1777 (2020)
ISSN: 2223-7747
Popis: Extracellular Vesicles (EVs) play pivotal roles in cell-to-cell and inter-kingdom communication. Despite their relevant biological implications, the existence and role of plant EVs released into the environment has been unexplored. Herein, we purified round-shaped small vesicles (EVs) by differential ultracentrifugation of a sampling solution containing root exudates of hydroponically grown tomato plants. Biophysical analyses, by means of dynamic light scattering, microfluidic resistive pulse sensing and scanning electron microscopy, showed that the size of root-released EVs range in the nanometric scale (50&ndash
100 nm). Shot-gun proteomics of tomato EVs identified 179 unique proteins, several of which are known to be involved in plant-microbe interactions. In addition, the application of root-released EVs induced a significant inhibition of spore germination and of germination tube development of the plant pathogens Fusarium oxysporum, Botrytis cinerea and Alternaria alternata. Interestingly, these EVs contain several proteins involved in plant defense, suggesting that they could be new components of the plant innate immune system.
Databáze: OpenAIRE