Interactions between Eikenella corrodens and 'Streptococcus milleri-group' organisms: Possible mechanisms of pathogenicity in mixed infections

被引:17
作者
Young, KA [1 ]
Allaker, RP [1 ]
Hardie, JM [1 ]
Whiley, RA [1 ]
机构
[1] ST BARTHOLOMEWS & ROYAL LONDON SCH MED & DENT,DEPT ORAL MICROBIOL,LONDON E1 2AD,ENGLAND
来源
ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY | 1996年 / 69卷 / 04期
关键词
coaggregation; Eikenella corrodens; hydrolases; interaction; streptococci;
D O I
10.1007/BF00399626
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Interactions between the 'Streptococcus milleri-group' organisms ( SMG; S. intemedius, S. constellatus and S. anginosus) and Eikenella corrodens were investigated. Coaggregation reactions occurred frequently between S. anginosus (83% of strain combinations) or S. constellatus (87%) and E. corrodens isolates, but were infrequent between S. intermedius and E. corrodens (28%). No enhancement of enzyme activities against lipid, phosphate, peptide and saccharide substrates tested were detected with combinations of species in comparison to the species alone. Exponential growth of S. constellatus and S. intermedius, in mixed culture with E. corrodens, occurred within 6h post inoculation, in comparison to 25h without E. corrodens. No growth stimulation of S. anginosus was observed. It is concluded that both coaggregation and growth stimulation occur between E. corrodens and SMG isolates, and may be important mechanisms in the establishment of mixed infections involving these bacteria.
引用
收藏
页码:371 / 373
页数:3
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