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International Journal of Botany
  Year: 2008 | Volume: 4 | Issue: 4 | Page No.: 369-375
DOI: 10.3923/ijb.2008.369.375
Biological Control Potential of Achromobacter xylosoxydans for Suppressing Fusarium wilt of Tomato
M. Moretti, G. Gilardi, M.L. Gullino and A. Garibaldi

Abstract:
A bacterium identified as Achromobacter xylosoxidans (MM1) was isolated and evaluated for its ability to suppress Fusarium wilt of tomato under glasshouse conditions. The bacterial strain was applied by dipping plant roots in a cell suspension at the concentration of 1x108 cfu mL-1. Results of different trials showed that this bacterial strain reduced wilt incidence by about 50%. No phytotoxicity was observed on healthy plants treated with the bacterial suspension and, on the contrary, these showed a growth stimulation if compared to untreated plants. In vitro assays showed that A. xylosoxydans MM1 strain is able to produce hydroxamic siderophores and has no chitinolytic activity. Therefore a possible biocontrol mechanism could be competition for iron. This isolate should be further evaluated for potential application in biocontrol of other plant pathogens.
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How to cite this article:

M. Moretti, G. Gilardi, M.L. Gullino and A. Garibaldi, 2008. Biological Control Potential of Achromobacter xylosoxydans for Suppressing Fusarium wilt of Tomato. International Journal of Botany, 4: 369-375.

DOI: 10.3923/ijb.2008.369.375

URL: https://scialert.net/abstract/?doi=ijb.2008.369.375

 
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