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Science 26 March 1982:
Vol. 215. no. 4540, pp. 1631 - 1632
DOI: 10.1126/science.215.4540.1631
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Articles

Fast-Growing Rhizobia Isolated from Root Nodules of Soybean

HAROLD H. KEYSER 1, B. BEN BOHLOOL 2, T. S. Hu 3, and DEANE F. WEBER 4

1 U.S. Department of Agriculture, Agriculture Research Service, Cell Culture and Nitrogen Fixation Laboratory, Beltsville, Maryland 20705
2 Microbiology Department, University of Hawaii, Honolulu 96822
3 Institute of Soils and Fertilizers, Chinese Academy of Agricultural Sciences, Beijing (81) People's Republic of China
4 U.S. Department of Agriculture, Agriculture Research Service, Cell Culture and Nitrogen Fixation Laboratory

Fast-growing rhizobia have been isolated from soybean root nodules collected in China. These new isolates are physiologically distinct from slow-growing soybean rhizobia. They formed effective nitrogen-fixing associations with wild soybean and an unbred soybean cultivar from China, but were largely ineffective as nitrogen-fixing symbionts with common commercial cultivars of soybeans.

Submitted on October 22, 1981
Revised on December 14, 1981


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