Streptococcus thermophilus is able to produce a β-galactosidase active during its transit in the digestive tract of germ-free mice

被引:43
作者
Drouault, S
Anba, J
Corthier, G [1 ]
机构
[1] INRA, Unite Ecol & Physiol Syst Digest, F-78352 Jouy En Josas, France
[2] Arilait Rech, F-75009 Paris, France
关键词
D O I
10.1128/AEM.68.2.938-941.2002
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
This work presents data on the application of a bacterial luciferase used to monitor gene expression of Streptococcus thermophilus in the digestive tract. The main result is that the bacterium was able to produce an active beta-galactosidase in the digestive tract, although it did not multiply during its transit. This production was enhanced when lactose (the inducer) was added to the diet.
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页码:938 / 941
页数:4
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