New lineage of filamentous, spore-forming, gram-positive bacteria from soil
Article Abstract:
A novel bacteria strain that was isolated from Italian soil and was designated [SOSP1-21.sup.T] forms branched mycelia in solid and liquid media and has a filamentous morphology similar to that of some genera belonging to the Actinobacteria. Phylogenetic analyses of 16S rRNA gene segments confirmed the relatedness of these strains to [SOSP1-21.sup.T] and indicated that the newly isolated strains form separate clades in a deeply branching lineage.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 2006
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Biosynthesis of auxin by the gram-positive phytopathogen Rhodococcus fascians is controlled by compounds specific to infected plant tissues
Article Abstract:
The production of auxin indole-3-acetic acid (IAA) and its main intermediates by the gram-positive phytopathogen Rhodococcus fascians is described. It is found that R. fascians produces IAA through the indole-3-pyruvic acid (IPyA) pathway and the importance of IAA production in relation to the capacity of R. fascians to colonize plant tissues and/or to induce symptoms is discussed.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 2005
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The phytopathogen Dickeya dadantii (Erwinia chrysanthemi 3937) is a pathogen of the pea aphid
Article Abstract:
The pathogenicity of Dickeya dadantii is tested on the pea aphid Acyrthosiphon pisum, to demonstrate that it is highly virulent for the insect either by septic injury or by oral infection. The pathogenic trait for aphids is shown to be widespread, albeit variable, within the phytopathogenes, with no link to phylogenetic positioning in the Enterobacteriaceae.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 2006
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