Erwinia gerundensis sp. nov., a cosmopolitan epiphyte originally isolated from pome fruit trees

International Journal of Systematic and Evolutionary Microbiology
Fabio RezzonicoEmilio Montesinos

Abstract

A survey to obtain potential antagonists of pome fruit tree diseases yielded two yellow epiphytic bacterial isolates morphologically similar to Pantoea agglomerans, but showing no biocontrol activity. Whole-Cell MALDI-TOF mass spectrometry and analysis of 16S rRNA and gyrB gene sequences suggested the possibility of a new species with a phylogenetic position in either Pantoea or Erwinia. Multilocus sequence analysis (MLSA) placed the two strains in the genus Erwinia and supported their classification as a novel species. The strains showed general phenotypic characteristics typical of this genus and results of DNA-DNA hybridizations confirmed that they represent a single novel species. Both strains showed a DNA G+C content, as determined by HPLC, of 54.5 mol% and could be discriminated from phylogenetically related species of the genus Erwinia by their ability to utilize potassium gluconate, potassium 2-ketogluconate, D-maltose, D-melibiose and D-raffinose. Whole-genome sequencing of strain EM595T revealed the presence of a chromosomal carotenoid biosynthesis gene cluster similar to those found in Cronobacter and Pantoea spp. that explains the pigmentation of the strain, which is atypical for the genus Erwinia. Additional strain...Continue Reading

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Citations

Feb 28, 2018·International Journal of Systematic and Evolutionary Microbiology·Marike PalmerStephanus N Venter
Nov 11, 2017·International Journal of Systematic and Evolutionary Microbiology·Marcelo PillonettoFabio Rezzonico
Nov 5, 2019·PloS One·Craig D Soutar, John Stavrinides
Mar 4, 2017·Antonie van Leeuwenhoek·Marike PalmerStephanus N Venter
Jul 12, 2017·Archives of Microbiology·Luigimaria BorrusoStefano Benini
Sep 14, 2021·Frontiers in Microbiology·J Paola Saldierna GuzmánStephen C Hart

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