Title: Prevalence of type III secretion system in effective biocontrol pseudomonads
Authors : Almario, Juliana
Gobbin, Davide
Défago, Geneviève
Moënne-Loccoz, Yvan
Rezzonico, Fabio
Published in : Research in Microbiology
Volume(Issue) : 165
Issue : 4
Pages : 300
Pages to: 304
Publisher / Ed. Institution : Elsevier Masson
Issue Date: 2014
License (according to publishing contract) : Licence according to publishing contract
Type of review: Peer review (Publication)
Language : English
Subject (DDC) : 570: Biology
Abstract: Functional type III secretion system (T3SS) genes are needed for effective biocontrol of Pythium damping-off of cucumber by Pseudomonas fluorescens KD, but whether biocontrol Pseudomonas strains with T3SS genes display overall a higher plant-protecting activity is unknown. The assessment of 198 biocontrol fluorescent pseudomonads originating from 60 soils worldwide indicated that 32% harbour the ATPase-encoding T3SS gene hrcN, which was most often found in tomato isolates. The hrcN+ biocontrol strains (and especially those also producing 2,4-diacetylphloroglucinol and displaying 1-aminocyclopropane-1-carboxylate deaminase activity) displayed higher plant-protecting ability in comparison with hrcN− biocontrol strains, both in the Pythium/cucumber and Fusarium/cucumber pathosystems.
Departement: Life Sciences und Facility Management
Organisational Unit: Institute of Natural Resource Sciences (IUNR)
Publication type: Article in scientific Journal
DOI : 10.1016/j.resmic.2014.03.008
ISSN: 0923-2508
URI: https://digitalcollection.zhaw.ch/handle/11475/1707
Appears in Collections:Publikationen Life Sciences und Facility Management

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