Comparison of the host range of fast-growingR. japonicum strains with a fast-growing isolate from Lablab
Fast-growingRhizobium japnicum strains derived from the People's Republic of China were compared with a fast-growingRhizobium isolate from Lablab for their ability to nodulate tropical legumes grown in Leonard-jars and test tube culture. Fast-growingR. japonicum strains were all effective to varying degrees in their symbiosis withVigna unguiculata. Two strains USDA 192 and USDA 201, effectively nodulatedGlycine whightii and one strain, USDA 193, effectively nodulatedMacroptilium atropurpureum. Other nodulation responses in tropical legumes were ineffective. The fast-growing isolate from Lablab was more promiscuous, effectively nodulating with a larger host range. The fast-growing Lablab strain was considered more akin, on a symbiotic basis, to the slow-growing cowpea type rhizobia than the fast-growing China strains ofR. japonicum whilst maintaining physiological characteristics of other fast-growing rhizobia.
Key wordsFast-growingGlycine max Host range Lablab Nodulation Rhizobium japonicum Slow-growing Tropical legumes
Unable to display preview. Download preview PDF.
- 1.Allen E K and Allen O N 1981 The Leguminosae: A source book of characteristics, uses and nodulation. MacMillan Publishing Ltd., London.Google Scholar
- 2.Jordan D C and Allen O N 1974 Rhizobiaceae.In Bergey's Manual of Determinative Bacteriology, 8th edition, Eds Buchanan R E and Gibbons, The Williams and Wilkins Company, Baltimore, 261–267 pp.Google Scholar
- 3.Keyser H Het al. 1982 Science 215, 1631–1632.Google Scholar
- 4.Norris D O 1956 Empire J. Exp. Agric. 24, 246–270.Google Scholar
- 5.Pulver E Let al. 1982 Crop Science 22, 1065–1070.Google Scholar
- 6.Schwinghamer E A and Dudman W F 1980In Methods for Evaluating Biological Nitrogen Fixation, Ed Bergersen F J, John Wiley and Sons Ltd, New York, 337–365 pp.Google Scholar
- 7.Trinick M J 1980 J. Appl. Bact. 49, 39–53.Google Scholar
- 8.Trinick M Jet al. 1976 New Phytol., 77, 359–370.Google Scholar
- 9.Trinick M J and Galbraith J H 1980. New Phytol. 86, 17–26.Google Scholar
- 10.Van Rensburg J Het al. 1983 South African J. Sci. 79, 251–252.Google Scholar
- 11.Yelton M Met al. 1983 J. Gen. Microbiol. 129, 1537–1547.Google Scholar