Structure changes of starch complexed with green tea catechin or lemon peel caffeic acid under thermomechanical-assist low moisture and their prebiotics during in vitro digestion and fermentation

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: unknown, P. 142676 - 142676

Published: March 1, 2025

Language: Английский

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Extreme Winter Environment Dominates Gut Microbiota and Metabolome of White-Lipped Deer

Microbiological Research, Journal Year: 2025, Volume and Issue: 297, P. 128182 - 128182

Published: April 15, 2025

Qinghai-Tibet Plateau (QTP) is marked by harsh environments that drive the evolution of unique nutrient metabolism mechanism in indigenous animal gut microbiotas. Yet, responses these microbiotas to different extreme remain poorly understood. White-lipped deer (Przewalskium albirostris), a native endangered species QTP, serves as an ideal model study how adapt season and human disturbances. Here, multi-omics integrated analysis 16S rRNA, metagenomics, untargeted metabolomics was performed investigate composition, function, metabolic characteristics microbiota across seasons living environments. Our results revealed winter environment dominated white-lipped deer. The exhibited enriched associated with producing short-chain fatty acids winter, core feature genera including norank_o_Rhodospirillales, Rikenellaceae_RC9_gut_group, unclassified_c_Clostridia. However, potential pathogenic bacteria few acid producers, norank_f_p-2534-18B5_gut_group, Cellulosilyticum, Paeniclostridium, showed enrichment captivity. Pathways carbohydrate metabolism, amino immune regulation group adaptation cold food scarcity. Among these, Rikenellaceae_RC9_gut_group unclassified_c_Clostridia contributed significantly pathways. pathways related intestinal inflammation enhanced alleviate stress norank_f_p-2534-18B5_gut_group most Butyric, valeric, valproic were more abundant group, while 3-hydroxybutyric (S)-beta-aminoisobutyric higher captive group. Furthermore, metabolites both groups further supported inferences on metagenomic functions. This confirms key role specific adapting high-altitude winters anthropogenic disturbances, emphasizing its importance for environmental resilience wild, mammals.

Language: Английский

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Brazilian Semi-Arid Mangroves-Associated Microbiome as Pools of Richness and Complexity in a Changing World

Frontiers in Microbiology, Journal Year: 2021, Volume and Issue: 12

Published: Aug. 26, 2021

Mangrove microbiomes play an essential role in the fate of mangroves our changing planet, but factors regulating biogeographical distribution mangrove microbial communities remain essentially vague. This paper contributes to understanding distributed along three provinces and ecoregions, covering exuberant Amazonia ecoregion (North Brazil Shelf) as well located southern limit (Southeastern ecoregion, Warm Temperate Southwestern Atlantic) localized on drier semi-arid coast (Northeastern Tropical Atlantic), two important ecotones where poleward landward shifts, respectively, are expected occur related climate change. study compared associated with conspicuous red ( Rhizophora mangle ) root soils encompassing soil properties, latitudinal factors, amplicon sequence variants 105 samples. We demonstrated that, although northern sites over 4,000 km apart, despite R. genetic divergences between north south populations, their resemble each other more than northeastern neighbors. In addition, were diverse displayed a higher level complexity ones. finding may reflect endurance northeast tailored deal stressful conditions semi-aridity resistance growing expansion observed such mangroves. Minimum temperature, precipitation, organic carbon, potential evapotranspiration main microbiota variation drivers should be considered conservation recovery strategies Anthropocene. face changes climate, land cover, biodiversity, chemical composition, richness harbored by hold key adaptability planet.

Language: Английский

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Assembly processes and source tracking of planktonic and benthic bacterial communities in the Yellow River estuary

Environmental Microbiology, Journal Year: 2021, Volume and Issue: 23(5), P. 2578 - 2591

Published: March 23, 2021

Estuaries connect rivers with the ocean and are considered transition regions due to continuous inputs from rivers. Microbiota different sources converge undergo succession in these regions, but their assembly mechanisms along environmental gradients remain unclear. Here, we found that salinity had a stronger effect on planktonic than benthic microbial communities, dominant bacteria changed more distinctly changes salinity. The brackish water came mainly seawater, which was confirmed laboratory, whereas were weakly affected by salinity, appeared be mixture of riverine oceanic sediments. Benthic bacterial community sediments controlled homogeneous selection almost unaffected assemblage processes for dramatically gradient, freshwater drift seawater. Our results highlight is key driver estuarine important shaping communities Yellow River estuary.

Language: Английский

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Spatial and Seasonal Patterns of Sediment Bacterial Communities in Large River Cascade Reservoirs: Drivers, Assembly Processes, and Co-occurrence Relationship

Microbial Ecology, Journal Year: 2022, Volume and Issue: 85(2), P. 586 - 603

Published: March 26, 2022

Language: Английский

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