Short digest for today, but I’d like to draw attention to two studies on creative techniques to reduce contamination by host DNA sequences: one using PCR blocking primers to improve 16S rDNA sequencing, and the other on using CRISPR-Cas systems to assist with 18S rDNA sequencing. Happy reading!

Human gut microbiome

Review: Gut Microbial Metabolites and Blood Pressure Regulation: Focus on SCFAs and TMAO – Poll et al. – Physiology

Review: Trial Watch: the gut microbiota as a tool to boost the clinical efficacy of anticancer immunotherapy – Daillerè et al. – OncoImmunology

Human oral microbiome

Well‐maintained patients with a history of periodontitis still harbor a more disbiotic microbiome than health – Lu et al. – Periodontology

Plant, root, and soil microbiome

Contrasting soil microbial abundance and diversity on and between pasture drill rows in the third growing season after sowing – Hayes et al. – Renewable Agriculture and Food Systems

A novel PCR clamping assay reducing plant host DNA amplification significantly improves prokaryotic endo-microbiome community characterization – Lefèvre et al. – FEMS Microbiology Ecology

Water and extremophile microbiome

Diverse viruses have restricted biogeography in deep-sea hydrothermal vent fluids – Thomas et al. – bioRxiv

Mercury methylation by metabolically versatile and cosmopolitan marine bacteria – Lin et al. – bioRxiv

Phages and viruses

A tissue level atlas of the healthy human virome – Kumata et al. – BMC Biology

Review: Deep Roots and Splendid Boughs of the Global Plant Virome – Dolja et al. – Annual Review of Phytopathology

Bioinformatics

An empirical Bayes approach to normalization and differential abundance testing for microbiome data – Liu et al. – BMC Bioinformatics

Techniques

The use of CRISPR-Cas Selective Amplicon Sequencing (CCSAS) to reveal the eukaryotic microbiome of metazoans – Zhong et al. – bioRxiv