Variation in Sensitivity of Gaeumannomyces graminis to Antibiotics Produced by Fluorescent Pseudomonas spp. and Effect on Biological Control of Take-All of Wheat.

Applied and Environmental Microbiology
M MazzolaR J Cook

Abstract

Isolates of Gaeumannomyces graminis var. tritici, the causal agent of take-all of wheat, varied in sensitivity in vitro to the antibiotics phenazine-1-carboxylic acid (PCA) and 2,4-diacetylphloroglucinol (Phl) produced by fluorescent Pseudomonas spp. shown previously to have potential for biological control of this pathogen. None of the four isolates of G. graminis var. avenae examined were sensitive to either of the antibiotics in vitro at the concentrations tested. The single isolate of G. graminis var. graminis tested was insensitive to PCA at 1.0 (mu)g/ml. Pseudomonas fluorescens 2-79 and Pseudomonas chlororaphis 30-84, both of which produce PCA, effectively suppressed take-all caused by each of two PCA-sensitive isolates of G. graminis var. tritici. PCA-producing strains exhibited a reduced ability or complete inability to suppress take-all caused by two of three isolates of G. graminis var. tritici that were insensitive to PCA at 1.0 (mu)g/ml. P. fluorescens Q2-87, which produces Phl, suppressed take-all caused by three Phl-sensitive isolates but failed to provide significant suppression of take-all caused by two isolates of G. graminis var. tritici that were insensitive to Phl at 3.0 (mu)g/ml. These findings affirm the r...Continue Reading

References

Jul 1, 1992·Molecular Plant-microbe Interactions : MPMI·L S Pierson, L S Thomashow
Dec 1, 1992·Microbiological Reviews·D J O'Sullivan, F O'Gara
Oct 1, 1991·Applied and Environmental Microbiology·M N VincentE A Pierson

❮ Previous
Next ❯

Citations

Mar 11, 2005·Nature Reviews. Microbiology·Dieter Haas, Geneviève Défago
May 25, 2006·Annual Review of Phytopathology·Dmitri V MavrodiLinda S Thomashow
Jun 18, 2010·Journal of Applied Microbiology·K M ThemboD R Katerere
Jul 31, 2002·Annual Review of Phytopathology·David M WellerLinda S Thomashow
Nov 25, 2004·Molecular Plant-microbe Interactions : MPMI·Alexander SchoutenJos M Raaijmakers
Jun 26, 2007·Antonie van Leeuwenhoek·Jesús Mercado-Blanco, Peter A H M Bakker
May 3, 2016·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Pravin VejanAmru Nasrulhaq Boyce
Sep 26, 2001·Applied and Environmental Microbiology·B B McSpadden Gardener, D M Weller
Nov 9, 2002·Molecular Plant-microbe Interactions : MPMI·Henk-jan SchoonbeekMaarten A De Waard
Aug 18, 2006·Environmental Microbiology·Josselin BodilisSylvie Barray
Mar 12, 2004·Annual Review of Phytopathology·W W Bockus, J P Shroyer
Oct 24, 2008·Phytopathology·Peter A H M BakkerL C van Loon
Oct 24, 2008·Phytopathology·Brian B McSpadden GardenerElizabeth Lutton
May 6, 2003·Annual Review of Phytopathology·Brion DuffyJos M Raaijmakers
Aug 6, 2019·Frontiers in Plant Science·Jürgen KöhlWillem J Ravensberg
Apr 21, 2009·Applied and Environmental Microbiology·Patrice de WerraMonika Maurhofer
Mar 10, 2004·Applied and Environmental Microbiology·Brion DuffyGeneviève Défago
Aug 9, 2005·Research in Microbiology·Annamaria BevivinoClaudia Dalmastri

❮ Previous
Next ❯

Related Feeds

Antifungals (ASM)

An antifungal, also known as an antimycotic medication, is a pharmaceutical fungicide or fungistatic used to treat and prevent mycosis such as athlete's foot, ringworm, candidiasis, cryptococcal meningitis, and others. Discover the latest research on antifungals here.

Antifungals

An antifungal, also known as an antimycotic medication, is a pharmaceutical fungicide or fungistatic used to treat and prevent mycosis such as athlete's foot, ringworm, candidiasis, cryptococcal meningitis, and others. Discover the latest research on antifungals here.