Rhizobium trifolii mutants deficient in exopolysaccharide production |
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Authors: | Mieczyslawa Deryto,Anna Skorupska,Jó zef Bednara,Zbigniew Lorkiewicz |
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Affiliation: | Inst. of Microbiology, Univ. M. C. Sktodowska, Akademicka 19, P-20-033 Lublin, Poland;Inst. of Biology, Univ. M. C. Sktodowska, Akademicka 19, P-20-033 Lublin, Poland. |
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Abstract: | Spontaneous mutants of Rhizobium trifolii 24AR5 which did not produce exopoly-saccharide were isolated. The non-mucoid mutants formed small white and ineffective nodules on both red and white clover. These nodules contained infection threads, but only a small number of bacteria were released into nodule cells, and bacteroids were rarely observed. The non-mucoid phenotype was not complemented by the symbiotic plasmid (pJB5JI) of Rhizobium leguminosarum. |
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Keywords: | Nodulation Rhizobium leguminosarum Trifolium pratense Trifolium repens Vicia sativa |
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