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Literature DB >> 8519477

Isolation and characterization of coaggregation-defective (Cog-) mutants of Streptococcus gordonii DL1 (Challis).

Abstract

Streptococcus gordonii DL1 (Challis) bears coaggregation-mediating surface adhesins which recognize galactoside-containing surface polysaccharides on Streptococcus oralis 34, Streptococcus oralis C104, and Streptococcus SM PK509. Fifty-nine spontaneously-occurring coaggregation-defective (Cog-) mutants of S. gordonii DL1 unable to coaggregate with partner streptococci were isolated. Six representative Cog- mutants were characterized by their coaggregation properties with four Actinomyces naeslundii strains (T14V, PK947, PK606, PK984), Veillonella atypica PK1910, and Propionibacterium acnes PK93. The six representative Cog- mutants showed altered coaggregation with their streptococcal partners, A. naeslundii PK947, and P. acnes PK93. Based on the coaggregation phenotypes of these mutants, a model for the lactose-inhibitable coaggregation between S. gordonii DL1 and its partner bacteria is proposed. The potential use of these mutants in studies of oral biofilms is discussed.

Entities: Chemical Mutation Species

Mesh：

Substances：

Year: 1995 PMID： 8519477 DOI： 10.1007/BF01569825

Source DB: PubMed Journal: J Ind Microbiol ISSN： 0169-4146

18 in total

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7 in total

1. Streptococcus gordonii biofilm formation: identification of genes that code for biofilm phenotypes.

Authors: C Y Loo; D A Corliss; N Ganeshkumar
Journal: J Bacteriol Date: 2000-03 Impact factor: 3.490

2. Insertional inactivation of genes responsible for the D-alanylation of lipoteichoic acid in Streptococcus gordonii DL1 (Challis) affects intrageneric coaggregations.

Authors: D L Clemans; P E Kolenbrander; D V Debabov; Q Zhang; R D Lunsford; H Sakone; C J Whittaker; M P Heaton; F C Neuhaus
Journal: Infect Immun Date: 1999-05 Impact factor: 3.441

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Journal: Infect Immun Date: 1996-10 Impact factor: 3.441

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Authors: J D Rogers; R J Palmer; P E Kolenbrander; F A Scannapieco
Journal: Infect Immun Date: 2001-11 Impact factor: 3.441