Method for screening bacteria and application thereof for field

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving viable micro-organism

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47 58, 71 3, 71 6, 435 30, 435 34, 435876, 435877, C12Q 102, C12Q 124, C12R 139, C12R 140

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active

046475338

ABSTRACT:
A method for screening bacteria to select strains which will suppress Pythium spp. in small grain crops under field conditions and a method for applying field-suppressive bacteria to suppress Pythium spp. in a commercial setting are described. Four Pseudomonas strains which passed the screen test are disclosed.

REFERENCES:
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Schroth et al., Ann. Rev. Microbiol., 35; pp. 453-476, (1981).
Baker, Ann. Rev. of Phytopathology, 6, pp. 263-294, (1968).
Burr et al., CRC Critical Reviews in Plant Sciences, vol. 2, Issue 1, pp. 1-20.
U.S. Ser. No. 500,043, R. D. Lumsen et al., 6/1/1983.
R. James Cook and W. A. Haglund, Pythium Root Rot: A Barrier to Yield of Pacific Northwest Wheat, Research Bulletin XB 0913, Agricultural Research Center, Washington State University, (1982).
Price, R. D., K. F. Baker, P. Broadbent, and E. H. Ridge, 1971, Effect on Wheat Plants of a Soil or Seed Application of Bacillus subtilis, either with or without the Presence of Rhizoctonia solani, Proc. Aust. Conf. Soil Biology, pp. 50-51, (Reprint not available, description taken from Biological Control of Plant Pathogens by K. F. Baker and R. J. Cook, The American Phytopathological Society, St. Paul, MN p. 92, (1982).
P. Broadbent, K. F. Baker and Y. Waterworth, "Bacteria and Actinomycetes Antagonistic to Fungal Root Pathogens in Australian Soils", Aust. J. Biol. Sci., vol. 24, pp. 925-944, (1971).
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M. N. Schroth and J. G. Hancock, "Disease-Suppressive Soil and Root-Colonizing Bacteria", Science, vol. 216, pp. 1376-1381, (1982).
C. R. Howell and R. D. Stipanovic, "Control of Rhizoctonia solani on Cotton Seedlings with Pseudomonas fluorescens and with an Antibiotic Produced by the Bacterium, Phytopathology, vol. 69, No. 5, pp. 480-482, (1979).
C. R. Howell and R. D. Stipanovic, "Suppression of Pythium ultimum-Induced Damping-Off of Cotton Seedlings by Pseudomonas fluorescens and its Antibiotic, Pyoluteorin, Phytopathology, vol. 70, No. 8, pp. 712-715, (1980).

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