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Skip to Search Results- 21Agricultural, Food and Nutritional Science, Department of
- 21Agricultural, Food and Nutritional Science, Department of/Journal Articles (Agricultural, Food and Nutritional Science)
- 1Graduate and Postdoctoral Studies (GPS), Faculty of
- 1Graduate and Postdoctoral Studies (GPS), Faculty of/Theses and Dissertations
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2019-01-01
Zhao, Xin, Wang, Weilan, Blaine, Alysson, Kane, Sarah T., Zijlstra, Ruurd T., Gänzle, Michael G.
Aims: This study aimed to determine whether host-adapted lactobacilli exhibit superior survival during intestinal transit relative to nomadic and free-living organisms, and to characterize the impact of probiotic lactobacilli on autochthonous lactobacilli. Methods and Results: Mixed cultures of...
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Genetic and phenotypic analysis of carbohydrate metabolism and transport in Lactobacillus reuteri
Download2018-01-01
Lactobacilli derive metabolic energy mainly from carbohydrate fermentation. Homofermentative and heterofermentative lactobacilli exhibit characteristic differences in carbohydrate transport and regulation of metabolism, however, enzymes for carbohydrate transport in heterofermentative...
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Genomic and phenotypic comparison of Lactobacillus reuteri isolates from food and intestinal ecosystems provides insights to probiotic applications
DownloadFall 2018
Some of the food fermenting lactobacilli are derived from the animal intestine. Lactobacillus reuteri provides a model organism to study molecular mechanisms of ecological adaptation from gut to food. The overall objective of this dissertation was to characterize ecological fitness of L. reuteri...
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Taxonomic assessment of rumen microbiota using total RNA and targeted amplicon sequencing approaches
Download2016
Janssen, Peter H., Li, Fuyong, Sun, Xu, Cox, Faith, Guan, Leluo, Henderson, Gemma
Taxonomic characterization of active gastrointestinal microbiota is essential to detect shifts in microbial communities and functions under various conditions. This study aimed to identify and quantify potentially active rumen microbiota using total RNA sequencing and to compare the outcomes of...
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Reutericyclin producing Lactobacillus reuteri modulates development of fecal microbiota in weanling pigs
Download2015
Zhao, Xin, Le, Minh H. A., Yang, Yan, Gänzle, Michael G., Zijlstra, Ruurd
Lactobacillus reuteri is used as probiotic culture in food and feed applications; however, strain specific properties of L. reuteri that mediate probiotic activity remain unknown. This study aimed to determine effects of feed fermentation with exopolysaccharide and reutericyclin producing L....
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The gut microbiome and its potential role in the development and function of newborn calf gastrointestinal tract
Download2015
Grebiel, Philip J., Malmuthuge, Nilusha, Guan, Leluo
A diverse microbial population colonizes the sterile mammalian gastrointestinal tract during and after the birth. There is increasing evidence that this complex microbiome plays a crucial role in the development of the mucosal immune system and influences newborn health. Microbial colonization is...
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Comparative genomics of Lactobacillus reuteri from sourdough reveals adaptation of an intestinal symbiont to food fermentations
Download2015
Zhao, Xin, Gänzle, Michael G., Lin, Xiaoxi B., Zheng, Jinshui
Lactobacillus reuteri is a dominant member of intestinal microbiota of vertebrates, and occurs in food fermentations. The stable presence of L. reuteri in sourdough provides the opportunity to study the adaptation of vertebrate symbionts to an extra-intestinal habitat. This study evaluated this...
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Xylo-oligosaccharides and virginiamycin differentially modulate gut microbial composition in chickens
Download2015
Zhao, Xin, Pourabedin, Mohsen, Guan, Leluo
Background The emergence and spread of antibiotic resistance in pathogens have led to a restriction on the use of antibiotic growth promoters (AGPs) in animal feed in some countries. The potential negative after-effects of a ban on AGPs could be mitigated by improving animal intestinal health...
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Gene-expression profiling of calves 6 and 9 months after inoculation with Mycobacterium avium subspecies paratuberculosis
Download2014
David, Joel, De Buck, Jeroen, Barkema, Herman W., Guan, Leluo
Early detection of Johne's disease (JD) caused by Mycobacterium avium subspecies paratuberculosis (MAP) is essential to reduce transmission; consequently, new diagnostic techniques and approaches to detect MAP or markers of early MAP infection are being explored. The objective was to identify...
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Potential regulatory role of microRNAs in the development of bovine gastrointestinal tract during early life
Download2014
Liang, Guanxiang, Bao, Hua, Guan, Leluo, Griebel, Philip J., Stothard, Paul, McFadden, Thomas B., Malmuthuge, Nilusha
This study aimed to investigate the potential regulatory role of miRNAs in the development of gastrointestinal tract (GIT) during the early life of dairy calves. Rumen and small intestinal (mid-jejunum and ileum) tissue samples were collected from newborn (30 min after birth; n = 3), 7-day-old...