Ethylene receptors are required to activate the plant defense response induced by AsES

GRELLET BOURNONVILLE CARLOS FROILÁN; MARTINEZ ZAMORA, GUSTAVO; GUERRERO FERNANDA; FURIO RAMIRO; TOMAS GRAU, RODRIGO; REQUENA FERNANDO; MARTOS GUSTAVO; CARO PILAR; PERATO MARISA; TONELLO, URSULA; LEMME CECILIA; DIAZ RICCI, JUAN CARLOS

Rosario

Congreso; XXXIV Argentinian Meeting of Plant Physiology RAFV Conference 2023; 2023

Sociedad Argentina de Fisiología Vegetal

Abstract: AsES (Acremonium strictum Elicitor Subtilisin) is a fungal protease that induces a defense response in Arabidopsis thaliana and in many commercial crops by activating the ethylene signaling pathway in plants. In the present work we study the action of AsES on ripening and disease resistance in climacteric (avocado) and non-climacteric (strawberry) fruits, and its association to the ethylene synthesis and the ethylene receptors. Results showed that AsES accelerates ripening and enhances parameters of fruit quality, induces an increase in ethylene production and confers higher resistance to the grey mold disease in both types of fruits. Experiments carried out with strawberry plants and fruits treated with AsES and the ethylene perception inhibitor 1-methylcyclopropene revealed a differential and unexpected regulation of the ethylene biosynthesis while increasing the susceptibility to the grey mold disease.