In vitro Pseudomonas putida BTP1-induced systemic resistance in grapevine rootstocks against Phylloxera (Daktulosphaira vitifoliae)

A. Ádám,I. Idris,Z. Ayyoubi

Published 2013 in Advances in Horticultural Science

ABSTRACT

This study investigates the systemic resistance induced by Pseudomonas putida strain BTP1 against phylloxerausing an in vitro model in Ruggeri (Ru140) and B41 roostocks. Significant differences were found with regard to maturedfemales, fecundity and oviposition period between untreated and bacteria-treated plants in both rootstocks. TreatedRu140 rootstocks were more resistant than treated B41 ones. BTP1 impacted negatively on the ability of phylloxera todevelop, indicating an increase in grapevine resistance and tolerance toward this pest in bacteria-treated plants. This isthe first known study of biocontrol of phylloxera in grapevine rootstocks by non-pathogenic P. putida strain BTP1 in vitro.

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