Effect of Two Plant Species, Flax (Linum usitatissinum L.) and Tomato (Lycopersicon esculentum Mill.), on the Diversity of Soilborne Populations of Fluorescent Pseudomonads.

Applied and Environmental Microbiology
P LemanceauC Alabouvette

Abstract

Suppression of soilborne disease by fluorescent pseudomonads may be inconsistent. Inefficient root colonization by the introduced bacteria is often responsible for this inconsistency. To better understand the bacterial traits involved in root colonization, the effect of two plant species, flax (Linum usitatissinum L.) and tomato (Lycopersicon esculentum Mill.), on the diversity of soilborne populations was assessed. Fluorescent pseudomonads were isolated from an uncultivated soil and from rhizosphere, rhizoplane, and root tissue of flax and tomato cultivated in the same soil. Species and biovars were identified by classical biochemical and physiological tests. The ability of bacterial isolates to assimilate 147 different organic compounds and to show three different enzyme activities was assessed to determine their intraspecific phenotypic diversity. Numerical analysis of these characteristics allowed the clustering of isolates showing a high level (87.8%) of similarity. On the whole, the populations isolated from soil were different from those isolated from plants with respect to their phenotypic characteristics. The difference in bacteria isolated from uncultivated soil and from root tissue of flax was particularly marked. Th...Continue Reading

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Citations

Jun 10, 2000·Journal of Applied Microbiology·G Berg
Jun 15, 2011·Microbes and Environments·Madhugiri Mallaiah Vasanthakumari, Manchanahally Byrappa Shivanna
Apr 1, 2010·Environmental Microbiology Reports·Stéphane UrozFrancis Martin
Jan 1, 2015·Nature Plants·Cara H HaneyFrederick M Ausubel
Jun 18, 2020·Frontiers in Plant Science·Sandra Macias-BenitezJuan Parrado Rubio
Nov 15, 2000·FEMS Microbiology Reviews·M SchloterA Hartmann
Jun 15, 2007·Environmental Microbiology·Agnès RobinPhilippe Lemanceau
Mar 11, 2005·Nature Reviews. Microbiology·Dieter Haas, Geneviève Défago
Jan 5, 2000·Applied and Environmental Microbiology·C H Yang, D E Crowley
Jul 31, 2002·Annual Review of Phytopathology·David M WellerLinda S Thomashow
Jul 31, 2004·Annual Review of Phytopathology·Mark Mazzola
Jan 31, 2003·Canadian Journal of Microbiology·Blanca B LandaClaude Alabouvette
Apr 3, 2004·Proceedings. Biological Sciences·Alissa Packer, Keith Clay
Nov 6, 2007·International Journal of Systematic and Evolutionary Microbiology·Jean-Marie MeyerDaniel Izard

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