Rumen microbiota
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA978346 | ENA |
REPOSITORIES: ENA
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Project description:A healthy rumen is crucial for normal growth and improved production performance of ruminant animals. Rumen microbes participate in and regulate rumen epithelial function, and the diverse metabolites produced by rumen microbes are important participants in rumen microbe-host interactions. SCFAs, as metabolites of rumen microbes, have been widely studied, and propionate and butyrate have been proven to promote rumen epithelial cell proliferation. Succinate, as an intermediate metabolite in the citric acid cycle, is a final product in the metabolism of certain rumen microbes, and is also an intermediate product in the microbial synthesis pathway of propionate. However, its effect on rumen microbes and rumen epithelial function has not been studied. It is unclear whether succinate can stimulate rumen epithelial development. Therefore, in this experiment, Chinese Tan sheep were used as experimental animals to conduct a comprehensive analysis of the rumen microbiota community structure and rumen epithelial transcriptome, to explore the role of adding succinate to the diet in the interaction between the rumen microbiota and host.
2023-06-12 | GSE233696 | GEO
Project description:As the unique organ, rumen plays vital roles in providing products for humans, however, the underlying cell composition and interactions with epithelium-attached microbes remain largely unknown. Herein, we performed an integrated analysis in single-cell transcriptome, epithelial microbiome, and metabolome of rumen tissues to explore the differences of microbiota-host crosstalk between newborn and adult cattle models. We found that fewer epithelial cell subtypes and more abundant immune cells (e.g., Th17 cells) in the rumen tissue of adult cattle. Metabolism-related functions and oxidation-reduction process were significantly upregulated in the adult rumen epithelial cell subtypes. The epithelial Desulfovibrio was significantly enriched in the adult cattle. To further clarify the role of Desulfovibrio in host’s oxidation-reduction process, we performed metabolomics analysis of rumen tissues and found that Desulfovibrio showed a high co-occurrence probability with the pyridoxal in the adult cattle compared with newborn ones. The adult rumen epithelial cell subtypes also showed stronger ability of pyridoxal binding. These indicates that Desulfovibrio and pyridoxal likely play important roles in maintaining redox balance in adult rumen. The integrated analysis provides novel insights into the understanding of rumen function and facilitate the future precision improvement of rumen function and milk/meat production in cattle.
2022-11-17 | GSE183285 | GEO
Project description:Metaproteomic studies of the rumen microbiota are challenged by the need of optimized sample preparation protocols in order to retrieve an enhanced amount of prokaryotic instead of plant and bovine derived cells before protein extraction and subsequent LC-MS/MS analysis. The present study evaluates three different protocols applied to the rumen microbiota either attached to plant fibres or present as planktonic cells. The findings of our work suggest the integration of cheesecloth-gauze filtration in sample preparation to achieve a better protein identification ratio.
2015-04-01 | PXD001526 | Pride
Project description:In this study, we studied the fibrolytic potential of the rumen microbiota in the rumen of 6 lambs separated from their dams from 12h of age and artificially fed with milk replacer (MR) and starter feed from d8, in absence (3 lambs) or presence (3 lambs) of a combination of the live yeast Saccharomyces cerevisiae CNCM I-1077 and selected yeast metabolites. The fibrolytic potential of the rumen microbiota of the lambs at 56 days of age was analyzed with a DNA microarray (FibroChip) targeting genes coding for 8 glycoside hydrolase (GH) families.
2019-10-01 | GSE122256 | GEO
Project description:SARST-V1 method was used to asses the effect of live yeast on the microbial population of the rumen of cows fed an acidogenic diet 3 cows were used in 3 by 3 latin-square design with 3 periods. In each period animals received either 0.5g/d of yeast, 5g/d of yeast or none. Rumen microbiota was analysed using the SARST-V1 method for each period.
2013-01-01 | E-GEOD-39206 | biostudies-arrayexpress
Project description:Ruminants are the most efficient herbivorous animals to transform plant biomass into edible products, principally thanks to the rumen microbiota that produces a large array of enzymes responsible for the hydrolysis of plant cell wall polysaccharides. Several biotic and abiotic factors influence the efficiency of fiber degradation, which can ultimately impact the animal productivity and health. To provide more insight on mechanisms involved in the modulation of fibrolytic activity, a functional DNA microarray targeting genes coding for key enzymes involved in cellulose and hemicellulose degradation by rumen microbiota was designed. The DNA microarray, designated FibroChip, was validated using targets of increasing complexity. This new tool demonstrated sensitivity and specificity as well as explorative and semi-quantitative potential. The FibroChip was designed with the objective to propose a high throughput tool that enables to get a rapid picture of the capacity of rumen microorganisms to degrade cellulose and hemicellulose based on a targeted metatranscriptomics approach. We chose to focus on a few number of genes by targeting main ruminal fibrolytic microorganisms and selected CAZyme families that may have a pivotal role in cellulose and hemicellulose degradation. The microarray targets the coding sequence of catalytic domains from 8 CAZyme families involved in cellulose and hemicellulose degradation (i.e. glycoside hydrolases GH5, GH9, GH10, GH11, GH43 and GH48, and carbohydrate esterases CE1 and CE6). Taken together, these families present complementary activities needed for the complete degradation of cellulose and hemicellulose. In total, 392 nucleic sequences encoding 363 GH and 29 CE were kept for the microarray design. These sequences originated from 41 bacterial species, 4 protozoal species and 10 fungal species. The microarray is composed of 1631 25-mer probes. GoArrays strategy consisting by associating 2 25-mer probes targeting the same gene (Rimour et al., 2005) was also emplyed to determine 2618 composite probes of 54-mers. Triplicate of probes of 25 and 54-mers were synthetized in situ on an Agilent 8x15K DNA microarray. The microarray contained also 382 Agilent internal control probes including positive controls, negative controls and quality control probes. Probes were randomly placed on the array to avoid position bias.
2017-12-01 | GSE107550 | GEO
Project description:Investigation of whole genome gene expression level changes in rumen epithelium of dairy cattle at different stages of rumen development and on different diets.
2009-11-01 | GSE18382 | GEO
Project description:We evaluated the effects of pure glyphosate and the formulations Durano TF and Roundup® LB plus in different concentrations on rumen microbiota bioreactor model using the Rumen Simulation Technique (RUSITEC). Application of the compounds in three concentrations (0.1 mg/L, 1.0 mg/L or 10 mg/L, n = 4 each).
2022-05-08 | PXD032166 | Pride
Project description:RNA sequencing (RNA-Seq) was performed on rumen papillae from 16 steers with variation in gain and feed intake. Sixteen rumen papillae samples were sequenced by Cofactor Genomics (St.Louis, MO).
2015-07-22 | E-GEOD-71153 | biostudies-arrayexpress