Identification of a Tyrosine Decarboxylase Gene (tdcA) in Streptococcus thermophilus 1TT45 and Analysis of Its Expression and Tyramine Production in Milk

被引：50

作者：

La Gioia, Federica ^{[1
]}

Rizzotti, Lucia ^{[1
]}

Rossi, Franca ^{[1
]}

Gardini, Fausto ^{[2
]}

Tabanelli, Giulia ^{[2
]}

Torriani, Sandra ^{[1
]}

机构：

[1] Univ Verona, Dipartimento Biotecnol, I-37134 Verona, Italy

[2] Univ Bologna, Dipartimento Sci Alimenti, Cesena, Italy

来源：

APPLIED AND ENVIRONMENTAL MICROBIOLOGY | 2011年 / 77卷 / 03期

关键词：

BIOGENIC-AMINE PRODUCTION; LACTOBACILLUS; QUANTIFICATION; LACTOCOCCUS; HISTAMINE; CHEESE; STRAIN; GROWTH; MODEL;

D O I：

10.1128/AEM.01928-10

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：

In this study, a tyrosine decarboxylase gene (tdcA) was identified in 1 among 83 Streptococcus thermophilus strains tested. Its sequence, nearly identical to that of a tdcA of Lactobacillus curvatus, indicated a horizontal gene transfer event. Transcription in milk and the formation of critical levels of tyramine were observed in the presence of tyrosine.

引用

页码：1140 / 1144

页数：5