Results 51 to 60 of about 14,563 (289)

The Conserved nhaAR Operon Is Drastically Divergent between B2 and Non-B2 Escherichia coli and Is Involved in Extra-Intestinal Virulence [PDF]

, 2014
The Escherichia coli species is divided in phylogenetic groups that differ in their virulence and commensal distribution. Strains belonging to the B2 group are involved in extra-intestinal pathologies but also appear to be more prevalent as commensals ...
Cruveiller, S, Dion, S, Gateau, C, Glodt, J, Launay, A, Ledda, A, Lescat, M, Pintard, C, Reibel, F, Tenaillon, O, Tourret, J   +10 more
core   +7 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Red Imported Fire Ants Reduce Invertebrate Abundance, Richness, and Diversity in Gopher Tortoise Burrows

Diversity, 2020
Gopher Tortoise (Gopherus polyphemus) burrows support diverse commensal invertebrate communities that may be of special conservation interest. We investigated the impact of red imported fire ants (Solenopsis invicta) on the invertebrate burrow community ...
Deborah M. Epperson, Craig R. Allen, Katharine F. E. Hogan   +2 more
doaj   +1 more source

Annelid Borings on Brachiopod Shells From the Upper Ordovician of Peru. A Long-Distance Co-migration of Biotic Partners

Frontiers in Ecology and Evolution, 2021
The Recent planktonic larvae of the polychaete spionids are some of the most widespread and abundant group of coastal meroplankton worldwide. To study the possible co-migration of biotic partners and determine whether they were host-specific, the type of
Enrique Villas, Eduardo Mayoral, Eduardo Mayoral, Ana Santos, Jorge Colmenar, Juan Carlos Gutiérrez-Marco   +5 more
doaj   +1 more source

Spectral control for ecological stability [PDF]

, 2018
A system made up of N interacting species is considered. Self-reaction terms are assumed of the logistic type. Pairwise interactions take place among species according to different modalities, thus yielding a complex asymmetric disordered graph.
Bagnoli, Franco, Battistelli, Giorgio, Cencetti, Giulia, Chisci, Luigi, Fanelli, Duccio   +4 more
core   +2 more sources

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Phenotypic responses to interspecies competition and commensalism in a naturally derived microbial co-culture [PDF]

, 2018
The fundamental question of whether different microbial species will co-exist or compete in a given environment depends on context, composition and environmental constraints.
Barney, Brett M., Bernstein, Hans C., Brislawn, Colin J., Chrisler, William B., Isern, Nancy, Khan, Nymul, Maezato, Yukari, Markillie, Lye Meng, McClure, Ryan S., Mobberley, Jennifer M., Nelson, William C., Song, Hyun-Seob   +11 more
core   +1 more source

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

FEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke, Michal Banasik, Rokas Juodeikis, Martin J. Warren, Richard W. Pickersgill   +4 more
wiley   +1 more source

Global population divergence and admixture of the brown rat (Rattus norvegicus) [PDF]

, 2016
Native to China and Mongolia, the brown rat (Rattus norvegicus) now enjoys a worldwide distribution. While black rats and the house mouse tracked the regional development of human agricultural settlements, brown rats did not appear in Europe until the ...
Blum, Michael J., Bryant, Juliet E., Caccone, Adalgisa, Combs, Matthew, Costa, Federico, Deinum, Eva E., Esther, Alexandra, Himsworth, Chelsea G., Keightley, Peter D., Ko, Albert, Lundkvist, Åke, McElhinney, Lorraine M., Morand, Serge, Munshi-South, Jason, Park, Jane, Puckett, Emily E., Robins, Judith, Russell, James, Strand, Tanja M., Suarez, Olga, Yon, Lisa   +20 more
core   +3 more sources

Dual‐Layer Living Hydrogel Enables On‐Demand Delivery of Phages and Probiotics for Synergistic Wound Infection Therapy

Advanced Functional Materials, EarlyView.
A dual‐layer living hydrogel, ProΦGel, integrates bacteriophages and probiotics for synergistic wound infection therapy. The outer gelatin‐based matrix releases phages on demand in response to P. aeruginosa infections, while inner alginate beads sustain probiotic delivery.
Siyuan Tao, Darine D'Adam, Anna Hu, Sixuan Zhang, Josua Roduner, Katharina Maniura‐Weber, Qun Ren   +6 more
wiley   +1 more source