Dataset Information

Simplified Human Intestinal Microbiota (SIHUMIx) LC-MS/MS dataset

ABSTRACT: Many functions in host��microbiota interactions are potentially influenced by intestinal transit times, but little is known about the effects of altered transition times on the composition and functionality of gut microbiota. To analyze these effects, we cultivated the model community SIHUMIx in bioreactors in order to determine the effects of varying transit times (TT) on the community structure and function. After five days of continuous cultivation, we investigated the influence of different medium TT of 12 h, 24 h, and 48 h. For profiling the microbial community, we applied flow cytometric fingerprinting and revealed changes in the community structure of SIHUMIx during the change of TT, which were not associated with changes in species abundances. For pinpointing metabolic alterations, we applied metaproteomics and metabolomics and found, along with shortening the TT, a slight decrease in glycan biosynthesis, carbohydrate, and amino acid metabolism and, furthermore, a reduction in butyrate, methyl butyrate, isobutyrate, valerate, and isovalerate concentrations. Specifically, B. thetaiotaomicron was identified to be affected in terms of butyrate metabolism. However, communities could recover to the original state afterward. This study shows that SIHUMIx showed high structural stability when TT changed��even four-fold. Resistance values remained high, which suggests that TTs did not interfere with the structure of the community to a certain degree.

INSTRUMENT(S): Q Exactive

ORGANISM(S): Bacteroides Thetaiotaomicron Erysipelatoclostridium Ramosum Dsm 1402 Blautia Producta Atcc 27340 = Dsm 2950 Clostridium Butyricum Dsm 10702 Lactobacillus Plantarum Anaerostipes Caccae Dsm 14662 Bifidobacterium Longum Ncc2705 Escherichia Coli Str. K-12 Substr. Mg1655

SUBMITTER: Nico Jehmlich

LAB HEAD: Nico Jehmlich

PROVIDER: PXD017035 | Pride | 2020-02-06

REPOSITORIES: Pride

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The Simplified Human Intestinal Microbiota (SIHUMIx) Shows High Structural and Functional Resistance against Changing Transit Times in <i>In Vitro</i> Bioreactors.

Schäpe Stephanie Serena SS Krause Jannike Lea JL Engelmann Beatrice B Fritz-Wallace Katarina K Schattenberg Florian F Liu Zishu Z Müller Susann S Jehmlich Nico N Rolle-Kampczyk Ulrike U Herberth Gunda G von Bergen Martin M

Microorganisms 20191203 12

Many functions in host-microbiota interactions are potentially influenced by intestinal transit times, but little is known about the effects of altered transition times on the composition and functionality of gut microbiota. To analyze these effects, we cultivated the model community SIHUMIx in bioreactors in order to determine the effects of varying transit times (TT) on the community structure and function. After five days of continuous cultivation, we investigated the influence of different m ...[more]

PMID: 31816881

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			Action	DRS
	Multireport_all.pdResult	Other
	SIHUMIx_crap.fasta	Fasta
	Sample_description.xlsx	Xlsx
	d10_12_hTT_I.pdResult	Other
	d10_12_hTT_I.raw	Raw