Abstract
The addition of either fluorescentPseudomonas strain B10, isolated from a take-all suppressive soil, or its siderophore, pseudobactin, to bothFusarium-wilt and take-all conducive soils inoculated withFusarium oxysporum f. sp.lini orGaeumannomyces graminis var.tritici, respectively, rendered them disease suppressive. Our findings suggest that disease suppressiveness is caused in part by microbial siderophores which efficiently complex iron(III) in soils, making it unavailable to pathogens, thus inhibiting their growth. Amendment of exogenous iron(III) to disease-suppressive soils converted them to conductive soils presumably by repressing siderophore production.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literature Cited
Alabouvette, C., Rousel, F., Louvet, J. 1979. Characteristics ofFusarium wilt: Suppressive soils and prospects for their utilization in biological control, pp. 165–182. In: Schippers, B., Gams, W. (eds.), Soil-borne plant pathogens. New York: Academic Press.
Burr, T. J., Schroth, M. N., Suslow, T. 1978. Increased potato yields by treatment of seedpieces with specific strains ofPseudomonas fluorescens andP. putida. Phytopathology68:1377–1383.
Cook, R. J., Rovira, A. D. 1976. The role of bacteria in the biological control ofGaeumannomyces graminis by suppressive soils. Soil Biology and Biochemistry8:269–273.
Hornby, D. 1979. Take-all decline: A theorist’s paradise, pp. 133–156. In: Schippers, B., Gams, W. (eds.), Soil-borne plant pathogens. New York: Academic Press.
King, E. O., Ward, M. K., Raney, D. E. 1954. Two simple media for the demonstration of pyocyanin and fluorescin. Journal of Laboratory and Clinical Medicine44:301–307.
Kloepper, J. W., Leong, J., Teintze, M., Schroth, M. N. 1980. Enhanced plant growth by siderophores produced by plant growth-promoting rhizobacteria. Nature, in press.
Kloepper, J. W., Schroth, M. N. 1980. Potato rhizosphere colonization by plant growth-promoting rhizobacteria increases plant development and yield. Phytopathology, in press.
McCain, A. H., Pyeatt, L. E., Byrne, T. G., Farnham, D. S. 1980. Suppressive soil reduces carnation disease. California Agriculture34:9.
Neilands, J. B. 1980. Microbial metabolism of iron. In: Jacobs, A., Worwood, M. (eds.), Iron in biochemistry and medicine. New York: Academic Press. In press.
Scher, F. M., Baker, R. 1980. Mechanism of biological control in aFusarium-suppressive soil. Phytopathology70:412–417.
Smiley, R. W. 1978. Antagonists ofGaeumannomyces graminis from the rhizoplane of wheat in soils fertilized with ammonium-or nitrate-nitrogen. Soil Biology and Biochemistry10:169–174.
Smiley, R. W. 1979. Wheat-rhizoplane pseudomonads as antagonists ofGaeumannomyces graminis. Soil Biology and Biochemistry11:371–376.
Suslow, T. V., Kloepper, J. W., Schroth, M. N., Burr, T. J. 1979. Beneficial bacteria enhance plant growth. California Agriculture33:15–17.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kloepper, J.W., Leong, J., Teintze, M. et al. Pseudomonas siderophores: A mechanism explaining disease-suppressive soils. Current Microbiology 4, 317–320 (1980). https://doi.org/10.1007/BF02602840
Issue Date:
DOI: https://doi.org/10.1007/BF02602840