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. 1990 Aug;172(8):4701–4704. doi: 10.1128/jb.172.8.4701-4704.1990

Osmotic regulation of beta(1-2) glucan synthesis in members of the family Rhizobiaceae.

A Zorreguieta 1, S Cavaignac 1, R A Geremia 1, R A Ugalde 1
PMCID: PMC213308  PMID: 2376569

Abstract

High osmolarity in the culture medium of growing Agrobacterium tumefaciens strongly inhibited the accumulation of cellular beta(1-2) glucan. However, the enzymatic system required for the synthesis of this polysaccharide from UDP-glucose was not repressed by high osmolarity. Mutants of A. tumefaciens and Rhizobium meliloti affected in beta(1-2) glucan synthesis were unable to grow normally in low-osmolarity media.

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Selected References

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