Summary
Internal group antigens of several slow-growing and fast-growing Rhizobium strains were tested by gel-diffusion against antisera to three strains of Rhizobium japonicum. At least one, generally two common antigens were found in 13 strains of R. japonicum, 4 strains of R. lupini, 4 strains isolated from cowpea and two slow-growing strains isolated from Lotus. Forty-six fast-growing rhizobia (including two from Lotus and 4 from Leucaena leucocephala) were clearly distinguished from the slow-growing strains in tests with the same antisera. They were wholly negative (9) or gave a much weaker non-identical line with one antiserum (24 strains), two antisera (8) or three antisera (5). The 5 strains of agrobacteria grouped with the fast-growing rhizobia.
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Vincent, J.M., Humphrey, B. & Skrdleta, V. Group antigens in slow-growing rhizobia. Archiv. Mikrobiol. 89, 79–82 (1973). https://doi.org/10.1007/BF00409402
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DOI: https://doi.org/10.1007/BF00409402