Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-1490
Title: Phenotypic comparison of clinical and plant-beneficial strains of Pantoea agglomerans
Authors : Bonaterra, Anna
Badosa, Esther
Rezzonico, Fabio
Duffy, Brion
Montesinos, Emilio
Published in : International Microbiology
Volume(Issue) : 17
Issue : 2
Pages : 81
Pages to: 90
Publisher / Ed. Institution : Sociedad Espanola de Microbiologia
Issue Date: 2014
Language : Englisch / English
Subjects : Biocontrol; Pantoea
Subject (DDC) : 570: Biologie
Abstract: Certain strains of Pantoea are used as biocontrol agents for the suppression of plant diseases. However, their commercial registration is hampered in some countries because of biosafety concerns. This study compares clinical and plant-beneficial strains of P. agglomerans and related species using a phenotypic analysis approach in which plant-beneficial effects, adverse effects in nematode models, and toxicity were evaluated. Plant-beneficial effects were determined as the inhibition of apple fruit infection by Penicillium expansum and apple flower infection by Erwinia amylovora. Clinical strains had no general inhibitory activity against infection by the fungal or bacterial plant pathogens, as only one clinical strain inhibited P. expansum and three inhibited E. amylovora. By contrast, all biocontrol strains showed activity against at least one of the phytopathogens, and three strains were active against both. The adverse effects in animals were evaluated in the plant-parasitic nematode Meloidogyne javanica and the bacterial-feeding nematode Caenorhabditis elegans. Both models indicated adverse effects of the two clinical strains but not of any of the plant-beneficial strains. Toxicity was evaluated by means of hemolytic activity in blood, and genotoxicity with the Ames test. None of the strains, whether clinical or plant-beneficial, showed any evidence of toxicity.
Departement: Life Sciences und Facility Management
Organisational Unit: Institut für Umwelt und Natürliche Ressourcen (IUNR)
Publication type: Beitrag in wissenschaftlicher Zeitschrift / Article in scientific Journal
DOI : 10.2436/20.1501.01.210
10.21256/zhaw-1490
ISSN: 1139-6709
URI: https://digitalcollection.zhaw.ch/handle/11475/1709
Appears in Collections:Publikationen Life Sciences und Facility Management



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.