title: Mutual growth-promoting effect between Bifidobacterium bifidum WBBI03 and Listeria monocytogenes CMCC 54001.
abstract: In this study, Bifidobacterium bifidum WBBI03 and Listeria monocytogenes CMCC 54001 were selected to detect the changes in their growth pattern after mutual interaction between them. The proteomic changes after the interaction between the 2 bacteria were detected by the isobaric tags for relative and absolute quantitation method. The proteins related to the biosynthesis and cell reproduction were selected, and their changes at the transcriptional level were monitored by fluorescent quantitative PCR. Also, 3 other types of probiotic organisms and opportunistic pathogens were used to verify the results mentioned above. The results showed that growing the 2 organisms together could promote the growth of each other, resulting in earlier entry into the logarithmic phase. The results also showed that the expression of these proteins mostly tended to be upregulated at the translational and transcriptional level. The increase in the expression of these proteins might help promote the growth and reproduction of B. bifidum WBBI03 and L. monocytogenes CMCC 54001. One aspect of the biological significance of their presence in the normal intestine may be that the opportunistic pathogens promote the growth of the probiotics.
authors.affiliation: State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi, 330047, P. R. China.
authors.forename: Dong
authors.initials: D
authors.lastname: Yang
authors.affiliation: Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi, 330004, P. R. China.
authors.forename: Xiaoli
authors.initials: X
authors.lastname: Wu
authors.affiliation: State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi, 330047, P. R. China.
authors.forename: Xiaomin
authors.initials: X
authors.lastname: Yu
authors.affiliation: State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi, 330047, P. R. China.
authors.forename: Lihua
authors.initials: L
authors.lastname: He
authors.affiliation: Food and Nutritional Science, School of Biological Science, The University of Hong Kong, Pokfulam Road, Hong Kong, 999077, China. Electronic address: npshah@hku.hk.
authors.forename: Nagendra P
authors.initials: NP
authors.lastname: Shah
authors.affiliation: State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi, 330047, P. R. China. Electronic address: ziwu211@126.com.
authors.forename: Feng
authors.initials: F
authors.lastname: Xu
mesh_terms: D000818:Animals; D000069985:Bifidobacterium bifidum / Q000502:physiology*; D008089:Listeria monocytogenes / Q000502:physiology*; D019936:Probiotics / Q000378:metabolism; D040901:Proteomics
keywords: Bifidobacterium bifidum; Listeria monocytogenes; isobaric tags for relative and absolute quantitation; mutual interaction