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College of Agriculture
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Western Ag Research Center
Western Agricultural Research Center
Biological Seed Treatment
Many crops are susceptible to seed and seedling decay caused by soil-inhabiting fungi or by pathogens carried on the seed. Biological seed treatments
may provide an alternative to chemical control of many soil- and seedborne pathogens. Bio-priming, a seed treatment system that integrates the biological
and physiological aspects of disease control, involves coating the seed with a bacterial biocontrol agent and incubating the seed under warm, moist
conditions. Seed may be planted moist or dried for storage. Pseudomonas aureofaciens AB254, a
naturally-occurring bacteria isolated from western Montana soil, is used in the bio-priming seed treatment.
Key Publications
- Callan, N. W. and Mathre, D. E. 2000. Biopriming Seed Treatment. Encyclopedia of Plant Pathology, John Wiley and Sons.
- Mathre, D. E., Cook, R. J. and Callan, N. W. 1999. From discovery to use: traversing the world of commercializing biocontrol agents for plant disease control. Plant Disease 83:972-83.
- Callan, N. W., Mathre, D. E., Miller, J. B., and Vavrina, C. S. 1997. Biological seed treatments: factors affecting their efficacy. Hort Science 32:179-183.
- Callan, N, W., Miller, J. B., Mathre, D. E. and Mohan, S. K. 1996. Soil moisture and temperature effects on shrunken2 sweet corn seed decay and seedling blight caused by Penicillium oxalicum. J. Amer. Soc. Hort. Sci. 121:83-90.
- Mathre, D. E., Johnston, R. H., Callan, N. W., Mohan, S. K., Martin, J. M., and Miller, J. B. 1995. Combined biological and chemical seed treatments for control of two seedling diseases of sh2 sweet corn. Plant Dis. 79:1145-1148.
- Mathre, D. E., Callan, N. W., Johnston, R. H., and Schwend, A. 1994. Factors influencing the control of Pythium ultimum-induced seed decay by seed treatment with Pseudomonas aureofaciens AB254. Crop Protection 13:301-307.
- Callan, N. W., Mathre, D. E., and Miller, J. B. 1991. Field performance of sweet corn seed bio-primed and coated with Pseudomonas fluorescens AB254. HortScience 26:1163-1165.
- Callan, N. W., Mathre, D. E., and Miller, J. B. 1990. Bio-priming seed treatment for biological control of Pythium ultimum preemergence damping-off in sh-2 sweet corn. Plant Disease 74:368-372.
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