Results 61 to 70 of about 12,167 (194)

Bacteroides thetaiotaomicron metabolic activity decreases with polysaccharide molecular weight

mBio
The human colon hosts hundreds of commensal bacterial species, many of which ferment complex dietary carbohydrates. To transform these fibers into metabolically accessible compounds, microbes often express a series of dedicated enzymes homologous to the ...
Jeremy P. H. Wong, Noémie Chillier, Michaela Fischer-Stettler, Samuel C. Zeeman, Tom J. Battin, Alexandre Persat   +5 more
doaj   +1 more source

Dynamic genetic adaptation of Bacteroides thetaiotaomicron during murine gut colonization

Cell Reports, 2023
Summary: To understand how a bacterium ultimately succeeds or fails in adapting to a new host, it is essential to assess the temporal dynamics of its fitness over the course of colonization.
Megan S. Kennedy, Manjing Zhang, Orlando DeLeon, Jacie Bissell, Florian Trigodet, Karen Lolans, Sara Temelkova, Katherine T. Carroll, Aretha Fiebig, Adam Deutschbauer, Ashley M. Sidebottom, Joash Lake, Chris Henry, Phoebe A. Rice, Joy Bergelson, Eugene B. Chang   +15 more
doaj   +1 more source

Dissolved storage glycans shaped the community composition of abundant bacterioplankton clades during a North Sea spring phytoplankton bloom

Microbiome, 2023
Background Blooms of marine microalgae play a pivotal role in global carbon cycling. Such blooms entail successive blooms of specialized clades of planktonic bacteria that collectively remineralize gigatons of algal biomass on a global scale.
Chandni Sidhu, Inga V. Kirstein, Cédric L. Meunier, Johannes Rick, Vera Fofonova, Karen H. Wiltshire, Nicola Steinke, Silvia Vidal-Melgosa, Jan-Hendrik Hehemann, Bruno Huettel, Thomas Schweder, Bernhard M. Fuchs, Rudolf I. Amann, Hanno Teeling   +13 more
doaj   +1 more source

Host-selected mutations converging on a global regulator drive an adaptive leap towards symbiosis in bacteria [PDF]

, 2017
Host immune and physical barriers protect against pathogens but also impede the establishment of essential symbiotic partnerships. To reveal mechanisms by which beneficial organisms adapt to circumvent host defenses, we experimentally evolved ...
Cooper, Vaughn S., Coyle, Matthew, Donner, Rachel A., Foxall, Randi L., Pankey, Molly Sabrina, Perry, Lauren A., Schuster, Brian M., Ster, Ian M., Whistler, Cheryl A.   +8 more
core   +3 more sources

Glycan complexity dictates microbial resource allocation in the large intestine. [PDF]

, 2015
The structure of the human gut microbiota is controlled primarily through the degradation of complex dietary carbohydrates, but the extent to which carbohydrate breakdown products are shared between members of the microbiota is unclear.
Baslé, Arnaud, Bolam, David N, Briggs, Jonathon A, Day, Alison M, Dupree, Paul, Gilbert, Harry J, Hawkins, Alastair R, Henrissat, Bernard, Lowe, Elisabeth C, Martens, Eric C, Morland, Carl, Mortimer, Jennifer C, Rogers, Theresa E, Rogowski, Artur, Terrapon, Nicolas, Thompson, Paul, Tryfona, Theodora, Yadav, Madhav P, Zheng, Hongjun   +18 more
core   +6 more sources

Receptor uptake arrays for vitamin B12, siderophores and glycans shape bacterial communities

, 2017
Molecular variants of vitamin B12, siderophores and glycans occur. To take up variant forms, bacteria may express an array of receptors. The gut microbe Bacteroides thetaiotaomicron has three different receptors to take up variants of vitamin B12 and 88 ...
Frank, Steven A.
core   +1 more source

Dual‐Network Protein Hydrogels Promote Rapid Hemostasis and Immune‐Regulated Scarless Tissue Regeneration

Advanced Science, EarlyView.
A dual‐network protein hydrogel substantially improves hemostasis and scar‐free healing.The adaptive network maintains intimate tissue contact while providing strong wet adhesion, tunable mechanics, and controlled degradation. Concurrent ROS scavenging and M2 polarization suppress fibrotic pathways, preventing scar formation.
Xiaomei Li, Guorui Zhang, Xinyue Wang, Zhongyu Liu, Ling Yang, Yuhan Bao, Min Wei, Yonglin Chen, Yanfei Ma, Wenbo Sheng, Bo Yu, Bin Li   +11 more
wiley   +1 more source

Genes for laminarin degradation are dispersed in the genomes of particle-associated Maribacter species

Frontiers in Microbiology
Laminarin is a cytosolic storage polysaccharide of phytoplankton and macroalgae and accounts for over 10% of the world’s annually fixed carbon dioxide. Algal disruption, for example, by viral lysis releases laminarin.
Saskia Kalenborn, Daniela Zühlke, Greta Reintjes, Katharina Riedel, Rudolf I. Amann, Jens Harder   +5 more
doaj   +1 more source

A pipeline for targeted metagenomics of environmental bacteria. [PDF]

, 2020
BackgroundMetagenomics and single cell genomics provide a window into the genetic repertoire of yet uncultivated microorganisms, but both methods are usually taxonomically untargeted.
Bowers, Robert M, Fuchs, Bernhard M, Goudeau, Danielle, Grieb, Anissa, Lee, Janey, Malmstrom, Rex R, Oggerin, Monike, Woyke, Tanja   +7 more
core   +2 more sources

Gut Health in Ostriches (Struthio camelus): Insights Into Intestinal Structure, Functions, Microbiome, and Improvement Strategies

Animal Research and One Health, EarlyView.
Our paper systematically reviews the intestinal structure, function, and microbiota of ostriches, along with strategies for improving their gut health. We analyze how these factors collectively influence intestinal homeostasis and ostrich welfare, emphasizing probiotics as a promising intervention to enhance gut health, boost population well‐being, and
Zi‐Qun Zhang, Fang‐Fang Guo, Wen‐Juan Du, Meng Li, Aftab Shaukat, Zhu‐Qing Jia, Shu‐Cheng Huang   +6 more
wiley   +1 more source