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Publication type: Article in scientific journal
Type of review: Peer review (publication)
Title: Phenotypic comparison of clinical and plant-beneficial strains of Pantoea agglomerans
Authors: Bonaterra, Anna
Badosa, Esther
Rezzonico, Fabio
Duffy, Brion
Montesinos, Emilio
DOI: 10.21256/zhaw-1490
Published in: International Microbiology
Volume(Issue): 17
Issue: 2
Pages: 81
Pages to: 90
Issue Date: 2014
Publisher / Ed. Institution: Spanish Society for Microbiology
ISSN: 1139-6709
Language: English
Subjects: Biocontrol; Pantoea
Subject (DDC): 570: Biology
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.
Fulltext version: Published version
License (according to publishing contract): CC BY-SA 3.0: Attribution - Share alike 3.0 Unported
Departement: Life Sciences and Facility Management
Organisational Unit: Institute of Natural Resource Sciences (IUNR)
Appears in Collections:Publikationen Life Sciences und Facility Management

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