Journal article

A sulfoglycolytic Entner-Doudoroff pathway in Rhizobium leguminosarum bv. trifolii SRDI565

Jinling Li, Ruwan Epa, Nichollas Scott, Dominic Skoneczny, Mahima Sharma, Alexander JD Snow, James Lingford, Ethan Goddard-Borger, Gideon Davies, Malcolm McConville, Spencer Williams

Published : 2019


Rhizobia are nitrogen fixing bacteria that engage in symbiotic relationships with plant hosts but can also persist as free-living bacteria with the soil and rhizosphere. Here we show that free living Rhizobium leguminosarum SRDI565 can grow on the sulfosugar sulfoquinovose (SQ) using a sulfoglycolytic Entner-Doudoroff (sulfo-ED) pathway resulting in production of sulfolactate (SL) as the major metabolic end-product. Comparative proteomics supports the involvement of a sulfo-ED operon encoding an ABC transporter cassette, sulfo-ED enzymes and an SL exporter. Consistent with an oligotrophic lifestyle, proteomics data revealed little change in expression of the sulfo-ED proteins during growth o..

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