Surface motility in Pseudomonas sp. DSS73 is required for efficient biological containment of the root-pathogenic microfungi Rhizoctonia solani and Pythium ultimum
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Surface motility in Pseudomonas sp. DSS73 is required for efficient biological containment of the root-pathogenic microfungi Rhizoctonia solani and Pythium ultimum. / Andersen, Jens Bo; Koch, Birgit; Nielsen, Tommy Harder; Sørensen, Dan; Hansen, Michael; Nybroe, Ole; Christophersen, Carsten; Sørensen, Jan; Molin, Søren; Givskov, Michael.
In: Microbiology, Vol. 149, No. Pt 1, 2003, p. 37-46.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Surface motility in Pseudomonas sp. DSS73 is required for efficient biological containment of the root-pathogenic microfungi Rhizoctonia solani and Pythium ultimum
AU - Andersen, Jens Bo
AU - Koch, Birgit
AU - Nielsen, Tommy Harder
AU - Sørensen, Dan
AU - Hansen, Michael
AU - Nybroe, Ole
AU - Christophersen, Carsten
AU - Sørensen, Jan
AU - Molin, Søren
AU - Givskov, Michael
N1 - Keywords: Antibiosis; Bacterial Proteins; Beta vulgaris; Culture Media; Movement; Peptides, Cyclic; Pest Control, Biological; Plant Diseases; Plant Roots; Pseudomonas; Pythium; Rhizoctonia; Soil Microbiology; Transcription Factors
PY - 2003
Y1 - 2003
N2 - Pseudomonas sp. DSS73 was isolated from the rhizoplane of sugar beet seedlings. This strain exhibits antagonism towards the root-pathogenic microfungi Pythium ultimum and Rhizoctonia solani. Production of the cyclic lipopeptide amphisin in combination with expression of flagella enables the growing bacterial culture to move readily over the surface of laboratory media. Amphisin is a new member of a group of dual-functioning compounds such as tensin, viscosin and viscosinamid that display both biosurfactant and antifungal properties. The ability of DSS73 to efficiently contain root-pathogenic microfungi is shown to arise from amphisin-dependent surface translocation and growth by which the bacterium can lay siege to the fungi. The synergistic effects of surface motility and synthesis of a battery of antifungal compounds efficiently contain and terminate growth of the microfungi.
AB - Pseudomonas sp. DSS73 was isolated from the rhizoplane of sugar beet seedlings. This strain exhibits antagonism towards the root-pathogenic microfungi Pythium ultimum and Rhizoctonia solani. Production of the cyclic lipopeptide amphisin in combination with expression of flagella enables the growing bacterial culture to move readily over the surface of laboratory media. Amphisin is a new member of a group of dual-functioning compounds such as tensin, viscosin and viscosinamid that display both biosurfactant and antifungal properties. The ability of DSS73 to efficiently contain root-pathogenic microfungi is shown to arise from amphisin-dependent surface translocation and growth by which the bacterium can lay siege to the fungi. The synergistic effects of surface motility and synthesis of a battery of antifungal compounds efficiently contain and terminate growth of the microfungi.
U2 - 10.1099/mic.0.25859-0
DO - 10.1099/mic.0.25859-0
M3 - Journal article
C2 - 12576578
VL - 149
SP - 37
EP - 46
JO - Microbiology
JF - Microbiology
SN - 1350-0872
IS - Pt 1
ER -
ID: 10615471