Premium
L‐Rhamnose utilisation in Salmonella typhimurium
Author(s) -
Akhy M.T.,
Brown C.M.,
Old D.C.
Publication year - 1984
Publication title -
journal of applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0021-8847
DOI - 10.1111/j.1365-2672.1984.tb01347.x
Subject(s) - rhamnose , aldolase a , salmonella , biochemistry , isomerase , chemistry , microbiology and biotechnology , enzyme , biology , bacteria , galactose , genetics
A khy , M.T., B rown , C.M. & O ld , D.C. 1984. L‐Rhamnose utilisation in Salmonella typhimurium. Journal of Applied Bacteriology 56 , 269–274. L‐Rhamnose is degraded by strains of Salmonella typhimurium by isomerisation to L‐rhamnulose, phosphorylation to L‐rhamnulose‐1‐phosphate and cleavage to lac‐taldehyde and dihydroxyacetone phosphate. The enzymes involved are, respectively, rhamnose isomerase (Rhal), rhamnulokinase (RhuK) and an aldolase (Ald). Strains able to grow rapidly on L‐rhamnose contained a high‐affinity uptake system for 3 H‐L‐rhamnose that was induced by L‐rhamnose and repressed by D‐glucose. The synthesis of Rhal and RhuK was also induced by L‐rhamnose but was not repressed by D‐glucose. The synthesis of Ald was constitutive. Data are presented on some strains which grow very slowly on L‐rhamnose and on others which do not utilise it.