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Correlation between extracellular polysaccharide composition and nodulating ability inRhizobium trifolii |
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| Authors: | Miguel A Caviedes Manuel Megias Antonio M Gil Antonio J Palomares Francisco Ruiz-Berraquero |
| Institution: | (1) Departmento de Microbiologia, Facultad de Farmacia, Universidad de Sevilla, Sevilla, Spain;(2) Departamento de Quimica Organica, Facultad de Quimicas, Universidad de Sevilla, Sevilla, Spain |
| Abstract: | Summary Two auxotrophic mutants ofRhizobium trifolii which are deficient in nodulating ability have been isolated. Both mutants (strain RS 164 His– and strain RS213 Leu–) appear to synthesize abnormal extracellular polysaccharides as compared with the wild type strain RS 55. Simultaneous recovery of nodulating ability and wild type polysaccharide composition has been found in a Leu+ revertant of strain RS 213.Abbreviation EPS Extracellular Polysaccharide - NIG N-Methyl-N-Nitro-N-Nitrosoguanidine |
| Keywords: | Rhizobium trifolii Auxotrophy Extracellular polysaccharide (EPS) Nodulating ability |
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