Involvement of Pyochelin and Pyoverdin in Suppression of Pythium-Induced Damping-Off of Tomato by Pseudomonas aeruginosa 7NSK2.

Applied and Environmental Microbiology
S BuysensM Höfte

Abstract

The plant growth-promoting rhizobacterium Pseudomonas aeruginosa 7NSK2 produces three siderophores when iron is limited: the yellow-green fluorescent pyoverdin, the salicylate derivative pyochelin, and salicylic acid. This Pseudomonas strain was shown to be an efficient antagonist of Pythium-induced damping-off. The role of pyoverdin and pyochelin in the suppression of Pythium splendens was investigated by using various siderophore-deficient mutants derived from P. aeruginosa 7NSK2 in a bioassay with tomato (Lycopersicon esculentum). To provide more insight into the role of pyochelin in antagonism, mutant KMPCH, deficient in the production of pyoverdin and pyochelin, was complemented for pyochelin production. The complementing clone was further characterized by subcloning and transposon mutagenesis and used to generate a pyochelin-negative, pyoverdin-positive mutant by marker exchange. All mutants were able to reduce Pythium-induced preemergence damping-off to some extent. Production of either pyoverdin or pyochelin proved to be necessary to achieve wild-type levels of protection against Pythium-induced postemergence damping-off. Mutant KMPCH inhibited P. splendens but was less active than the parental strain. This residual pro...Continue Reading

References

Jan 1, 1979·Journal of Bacteriology·C D Cox, R Graham
Sep 1, 1979·Microbiological Reviews·T Leisinger, R Margraff
Apr 1, 1979·Proceedings of the National Academy of Sciences of the United States of America·D H Figurski, D R Helinski
Nov 24, 1979·Nucleic Acids Research·H C Birnboim, J Doly
Dec 1, 1992·Microbiological Reviews·D J O'Sullivan, F O'Gara
Apr 1, 1990·Applied and Environmental Microbiology·M HöfteW Verstraete
Jan 1, 1987·Analytical Biochemistry·B Schwyn, J B Neilands
May 14, 1969·Journal of Molecular Biology·H W Boyer, D Roulland-Dussoix
Jan 1, 1981·Annual Review of Biochemistry·J B Neilands
Apr 1, 1982·Infection and Immunity·C D Cox
Dec 1, 1980·Proceedings of the National Academy of Sciences of the United States of America·G DittaD R Helinski
Nov 15, 1995·Molecular & General Genetics : MGG·L SerinoD Haas
Sep 1, 1993·Journal of General Microbiology·P ViscaN Orsi
Jan 1, 1993·Biometals : an International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine·M HöfteP Cornelis
Jun 1, 1994·Plant Physiology·M. C. Mehdy
Sep 1, 1994·Trends in Cell Biology·D A Dempsey, D F Klessig

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Citations

Jul 3, 2007·Molecular Plant-microbe Interactions : MPMI·Il-Pyung AhnSeok-Cheol Suh
Nov 16, 2010·Canadian Journal of Microbiology·Geoffrey G Bradley, Zamir K Punja
Jan 1, 2010·Microbes and Environments·Nurul H KhanKazuhiro Kogure
Sep 1, 2008·Indian Journal of Microbiology·Maloy Kumar SahuL Kannan
May 6, 2016·Frontiers in Microbiology·Christopher E BagwellPeter D R Moeller
Oct 18, 2016·Frontiers in Microbiology·Juan I VílchezMaximino Manzanera
Jun 15, 2007·Environmental Microbiology·Agnès RobinPhilippe Lemanceau
Jan 15, 2011·Archives of Microbiology·María L TortoraRaúl O Pedraza
Jan 1, 2012·Scientifica·Bernard R Glick
Sep 4, 2014·International Journal of Genomics·Devaraj IllakkiamParamasamy Gunasekaran
Jun 26, 2007·Antonie van Leeuwenhoek·Jesús Mercado-Blanco, Peter A H M Bakker
Jun 28, 2005·Nature Biotechnology·Ian T PaulsenJoyce E Loper
Jul 27, 2014·Applied Biochemistry and Biotechnology·M B SulochanaA Dayanand
Apr 28, 2001·Journal of Experimental Botany·J M Whipps
Nov 9, 2002·Folia Microbiologica·H P Deka Boruah, B S Dileep Kumar
May 18, 2013·Journal of Basic Microbiology·P HariprasadS R Niranjana

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