Today’s digest includes a description of how probiotics modulate B cells in Peyer’s patches published in Microbiome, a review in ISME on microbial storage in soil and multiple recent Cell Host & Microbe articles covering the plant immune system and colonisation resistance to Salmonella and Klebsiella.

General microbiome

Single-colony sequencing reveals microbe-by-microbiome phylosymbiosis between the cyanobacterium Microcystis and its associated bacteria – Pérez-Carrascal et al. Microbiome

Molecular basis of a bacterial-amphibian symbiosis revealed by comparative genomics, modeling, and functional testing – Brunetti et al. ISME

Human gut microbiome

Gut microbiota involved in leptospiral infections – Xie et al. ISME

Identification of Faecalibacterium prausnitzii strains for gut microbiome-based intervention in Alzheimer’s-type dementia – Ueda et al. Cell Reports Medicine

Fecal microbial transplantation and fiber supplementation in patients with severe obesity and metabolic syndrome: a randomized double-blind, placebo-controlled phase 2 trial – Mocanu et al. Nature Medicine

Gut bacteria identified in colorectal cancer patients promote tumourigenesis via butyrate secretion – Okumura et al. Nature Communications

E. coli enhance colonization resistance against Salmonella Typhimurium by competing for galactitol, a context-dependent limiting carbon source – Eberl et al. Cell Host & Microbe

Klebsiella oxytoca causes colonization resistance against multidrug-resistant K. pneumoniae in the gut via cooperative carbohydrate competition – Osbelt et al. Cell Host & Microbe

Human Oral Microbiome

Distinct B cell subsets in Peyer’s patches convey probiotic effects by Limosilactobacillus reuteri – Liu et al. Microbiome

Human Oral Microbiome

Metagenomic analysis of ancient dental calculus reveals unexplored diversity of oral archaeal Methanobrevibacter – Granehäll et al. Microbiome

Soil & Plant microbiomes

[REVIEW] Microbial storage and its implications for soil ecology – Mason-Jones et al. ISME

Gammaproteobacteria, a core taxon in the guts of soil fauna, are potential responders to environmental concentrations of soil pollutants – Zhang et al. Microbiome

Plant immune system activation is necessary for efficient root colonization by auxin-secreting beneficial bacteria – Tzipilevich et al. Cell Host & Microbe