Uptake of galacturonic acid in Erwinia chrysanthemi EC16

M. J.D. San Francisco, R. W. Keenan

Research output: Contribution to journalComment/debate

15 Scopus citations


Uptake of [14C]galacturonic acid in Erwinia chrysanthemi was found to be stimulated during growth on pectin and its degradation products, saturated digalacturonic acid and galacturonic acid. Cells isolated from macerated potato tissue also showed increased levels of uptake activity for this molecule compared with those showed by glycerol-grown cells. Uptake was found to be an active process, and it displayed saturation kinetics. An Escherichia coli galacturonic acid transport mutant harboring the E. chrysanthemi exuT gene(s) for galacturonic acid uptake was able to transport galacturonic acid but unable to take up the dimer [3H]digalacturonic acid.

Original languageEnglish
Pages (from-to)4263-4265
Number of pages3
JournalJournal of Bacteriology
Issue number13
StatePublished - 1993


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