July 16, 2021

Today’s digest features studies on environmental contamination of carbapenem-resistant Klebsiella pneumoniae in China (spoiler: extensive contamination, but has negligible impact on patient colonisation), the dynamic change and correlation of microbiome from different body sites to the treatment response as well as immune-related adverse events of immunotherapy in lung cancer patients, and more.

Also, check out a regularly-updated collection of FREE, ONLINE microbiome events. Happy Friday!

Human microbiome

*Prospective correlation between the patient microbiome with response to and development of immune-mediated adverse effects to immunotherapy in lung cancer – Justin Chau – BMC Cancer

Gut microbiome

Probiotics impact the antibiotic resistance gene reservoir along the human GI tract in a person-specific and antibiotic-dependent manner – Emmanuel Montassier – Nature Microbiology

Identification and engraftment of new bacterial strains by shotgun metagenomic sequence analysis in patients with recurrent Clostridioides difficile infection before and after fecal microbiota transplantation and in healthy human subjects – Sandeep Verma – PlosOne

Differences in the individual curative effect of acupuncture for obese women with polycystic ovary syndrome based on metagenomic analysis: study protocol for a randomized controlled trial – Huaying Fan – Trials

Comparative Analysis of 16S rRNA Gene and Metagenome Sequencing in Pediatric Gut Microbiomes – Danielle Peterson – Frontiers in Microbiology

Resistome

*Spread of Carbapenem-Resistant Klebsiella pneumoniae in an Intensive Care Unit: A Whole-Genome Sequence-Based Prospective Observational Study – Li Wei – Microbiology Spectrum

*Linezolid- and multidrug-resistant enterococci in raw commercial dog food, Europe, 2019–2020 – Ana R. Freitas – Emerging Infectious Diseases

Identification of pathogen(s) in infectious diseases using shotgun metagenomic sequencing and conventional culture: a comparative study – Huan Chen – PeerJ

Predicting antibiotic resistance gene abundance in activated sludge using shotgun metagenomics and machine learning – Yuepeng Sun – Water Research

Animal microbiome

Assessing the relationship between the rumen microbiota and feed efficiency in Nellore steers – Déborah Romaskevis Gomes Lopes – Journal of Animal Science and Biotechnology

Animal experiment

An osmotic laxative renders mice susceptible to prolonged Clostridioides difficile colonization and hinders clearance – Sarah Tomkovich – bioRxiv

Bioinformatics

Critical Assessment of Metagenome Interpretation – the second round of challenges – F. Meyer – bioRxiv

Disentangling environmental effects in microbial association networks – Maria Deutschmann – bioRxiv

Webinars &c

Microbiome Virtual International Conference #MVIF – September 14

July 14, 2021

General microbiome

Bacteriophage-Bacteria Interactions in the Gut: From Invertebrates to Mammals – Kirsch et al. – Annual Review of Virology

Helicobacter pylori infection has a detrimental impact on the efficacy of cancer immunotherapies – Oster et al. – Gut

Pregnancy and early life

Cervicovaginal microbiota and metabolome predict preterm birth risk in an ethnically diverse cohort – Flaviani et al. – JCI Insight

[REVIEW][Early-life gut microbiota and its connection to metabolic health in children: Perspective on ecological drivers and need for quantitative approach – Jian et al. – EBBioMedicine

Associations of air pollution and greenness with the nasal microbiota of healthy infants: A longitudinal study – Gisler et al. – Environmental Research

Human respiratory microbiome

Multi-omics profiling predicts allograft function after lung transplantation – Watzenböck et al. – European Respiratory Journal

Metagenomic Analysis Reveals A Possible Association Between Respiratory Infection and Periodontitis – Liu et al. – Genomics, Proteomics & Bioinformatics

Human skin microbiome

[REVIEW]Novel mechanisms of microbial crosstalk with skin innate immunity – Chinnappan & Harris-Tyron – Experimental Dermatology

Shifts in the skin bacterial and fungal communities of healthy children transitioning through puberty – Park et al. – Journal of Investigative Dermatology

Human gut microbiome

Gut-microbiota-targeted diets modulate human immune status – Wastyk et al. – Cell

[REVIEW]Silent hypoxia in COVID-19: a gut microbiota connection – Gopal et al. – Current Opinion in Physiology

[REVIEW]The Athlete and Gut Microbiome: Short-chain Fatty Acids as Potential Ergogenic Aids for Exercise and Training – Bongiovanni, Yin & Heaney

Identification and engraftment of new bacterial strains by shotgun metagenomic sequence analysis in patients with recurrent Clostridioides difficile infection before and after fecal microbiota transplantation and in healthy human subjects – Verma et al. – PLOS One

Kefir Ameliorates Specific Microbiota-Gut-Brain Axis Impairments in a Mouse Model Relevant to Autism Spectrum Disorder – van de Wouw et al. – Brain, Behavior, and Immunity

Animal microbiome

Comparative analysis of oral-gut microbiota between captive and wild long-tailed macaque in Thailand – Sawaswong et al. – Scientific Reports

Impact of the dietary inclusion of dried food residues on the apparent nutrient digestibility and the intestinal microbiota of dogs – Paßlack et al. – Archives of Animal Nutrition

Triphenyltin exposure causes changes in health-associated gut microbiome and metabolites in marine medaka – He et al. – Environmental Pollution

The microbial metabolite p-Cresol induces autistic-like behaviors in mice by remodeling the gut microbiota – Bermudez-Martin et al. – Microbiome

Microbes in space

Seven years of Progress in Determining Fungal Diversity and Characterization of Fungi Isolated from the Japanese Experiment Module KIBO, International Space Station – Satoh et al. – Microbiology and Immunology

Food microbiology

[REVIEW]Virome studies of food production systems: time for ‘farm to fork’ analyses – Mahony & van Sinderen – Current Opinion in Biotechnology

Bioinformatics

D-MANOVA: fast distance-based multivariate analysis of variance for large-scale microbiome association studies – Chen & Zhang – Bioinformatics

Umibato: estimation of time-varying microbial interaction using continuous-time regression hidden Markov model – Hosoda, Fukunaga & Hamada – Bioinformatics

[PREPRINT]Stool Studies Don’t Pass the Sniff Test: A Systematic Review of Human Gut Microbiome Research Suggests Widespread Misuse of Machine Learning – Quinn – arXiv

Techniques

Characterizing Microbiomes via Sequencing of Marker Loci: Techniques To Improve Throughput, Account for Cross-Contamination, and Reduce Cost – Harrison, Randolph & Buerkle – mSystems

Two-Target Quantitative PCR To Predict Library Composition for Shallow Shotgun Sequencing – Cho et al. – mSystems

Statistical approaches for differential expression analysis in metatranscriptomics – Zhang et al. – Bioinformatics

Benchmark of 16S rRNA gene amplicon sequencing using Japanese gut microbiome data from the V1–V2 and V3–V4 primer sets – Kameoka et al. – BMC Genomics

In vitro models of gut digestion across childhood: current developments, challenges and future trends – Fournier et al. – Biotechnology Advances

June 23, 2021

Happy Wednesday!

Today’s digest includes a review on the microbial transformations of human bile acids as well as research articles focused on extremophiles including Arthrobacter, Acidithiobacillus, and Atribacteria. Also included are a wide variety of preprints on topics such as CRISPR-Cas, the vaginal microbiome, immunocompetence in pigs, the evaluation of RNAlater for preserving field samples for metaproteomics, and more!

Happy reading!

General microbiome

Preprint: CRISPR-Cas systems are widespread accessory elements across bacterial and archaeal plasmids – Pinilla-Redondo et al. – bioRxiv

Human respiratory microbiome

Indoor bacterial, fungal and viral species and functional genes in urban and rural schools in Shanxi Province, China–association with asthma, rhinitis and rhinoconjunctivitis in high school students – Fu et al. – Microbiome

Human vaginal microbiome

Preprint: Insight into the ecology of vaginal bacteria through integrative analyses of metagenomic and metatranscriptomic data – France et al. – bioRxiv

Human gut microbiome

Review: Microbial transformations of human bile acids – Guzior & Quinn – Microbiome

Preprint: Targeted high-resolution taxonomic identification of Bifidobacterium longum subsp. infantis using human milk oligosaccharide metabolizing genes – Tso et al. – bioRxiv

An integrated gene catalog and over 10,000 metagenome-assembled genomes from the gastrointestinal microbiome of ruminants – Xie et al. – Microbiome

Animal experiments

Preprint: Leveraging host-genetics and gut microbiota to determine immunocompetence in pigs – Ramayo-Caldas et al. – bioRxiv

Joint contributions of the gut microbiota and host genetics to feed efficiency in chickens – Wen et al. – Microbiome

Animal microbiome

Holobiont nitrogen control and its potential for eutrophication resistance in an obligate photosymbiotic jellyfish – Röthig et al. – Microbiome

Plant, root, and soil microbiome

Preprint: Microbial metabolism and adaptations in Atribacteria-dominated methane hydrate sediments – Glass et al. – bioRxiv

Preprint: Seed microbiota revealed by a large-scale meta-analysis including 50 plant species – Simonin et al. – bioRxiv

Preprint: The activity and functions of subarctic soil microbial communities vary across vegetation types – Viitamäki et al. – bioRxiv

Water and extremophile microbiome

Preprint: Revealing the full biosphere structure and versatile metabolic functions in the deepest ocean sediment of the Challenger Deep – Chen et al. – bioRxiv

Preprint: Mechanistic insights into the success of xenobiotic degraders resolved from metagenomes of microbial enrichment cultures – Li et al. – bioRxiv

Low shifts in salinity determined assembly processes and network stability of microeukaryotic plankton communities in a subtropical urban reservoir – Mo et al. – Microbiome

Linking genomic and physiological characteristics of psychrophilic Arthrobacter to metagenomic data to explain global environmental distribution – Shen et al. – Microbiome

Genomic adaptations enabling Acidithiobacillus distribution across wide-ranging hot spring temperatures and pHs – Sriaporn et al. – Microbiome

Built environment

Preprint: Metagenome-based comparisons of decay rates and host-specificity of fecal microbial communities for improved microbial source tracking – Suttner et al. – bioRxiv

Phages and viruses

Preprint: Expanding clinical phage microbiology: Simulating phage inhalation for respiratory tract infections – Porat et al. – bioRxiv

Techniques

Ultra-accurate microbial amplicon sequencing with synthetic long reads – Callahan et al. – Microbiome

Preprint: Evaluation of RNAlater as a field-compatible preservation method for metaproteomic analyses of bacteria-animal symbioses – Jensen et al. – bioRxiv

Preprint: Predicting microbiome compositions through deep learning – Michel-Mata et al. – bioRxiv

May 18, 2021

Review articles on exciting microbiome topics dominate today’s post. My personal favorite review is by Berthoud et al. on gut-brain communication with focus on understanding functions of the vagus nerve. Others include – rumen microbiome, gut microbiota in neuronal feeding circuits, gut-brain axis in gastrointestinal cancer and a beautiful snapshot illustrating summary of microbiota effects on host physiology. Happy reading!

General Microbiome

Gut microbiota as a transducer of dietary cues to regulate host circadian rhythms and metabolism – Hyoann Choi – Nature Reviews Gatsroenterology and Hepatology

SnapShot: Microbiota effects on host physiology – Jennifer H.Hill – Cell

Roles for the gut microbiota in regulating neuronal feeding circuits – Kristie B. Yu – Journal of Clinical Investigation

Gut-brain communication and obesity: understanding functions of the vagus nerve – Hans-Rudolf Berthoud – Journal of Clinical Investigation

Exploiting unique features of the gut-brain interface to combat gastrointestinal cancer – Alyssa Schledwitz – Journal of Clinical Investigation

Human Microbiome

Evaluation of saliva as a source of accurate whole‐genome and microbiome sequencing data – Anthony F. Herzig – Genetic Epidemiology

The effects of nondigestible fermentable carbohydrates on adults with overweight or obesity: a meta-analysis of randomized controlled trials – Bocheng Xu – Nutrition Reviews

Altered gut microbiota correlates with cognitive impairment in Chinese children with Down’s syndrome – Shimeng Ren – European Child & Adolescent Psychiatry

A synthetic consortium of 100 gut commensals modulates the composition and function in a colon model of the microbiome of elderly subjects – Marta Perez – Gut Microbes

Animal Microbiome

The rumen microbiome: balancing food security and environmental impacts – Itzhak Mizrahi – Nature Reviews Microbiology

Components of the Gut Microbiome that Influence Bone Tissue‐Level Strength – Marysol Luna – Journal of Bone and Mineral Research

Characterization of growth phenotypes and gastrointestinal tract microbiota in sheep fed with caragana – Ke Zhang – Journal of Applied Microbiology

Techniques

‘GutFeel’: an in silico method for predicting gut health status based on the metabolic functional capabilities of the resident microbiome – Swadha Anand – Febs Letters

MiMeNet: Exploring microbiome-metabolome relationships using neural networks – Derek Reiman – Plos Computational Biology

Bacteria

Anatomy promotes neutral coexistence of strains in the human skin microbiome – Arolyn Conwill – BioRxiv

May 17, 2021

Good morning from Pittsburgh.

Today’s digest is preprint-heavy and has quite a few articles focused on soil, plants, and agriculture. If you aren’t interested in those areas of research, we also have articles with topics spanning the 1918 pandemic to multi-donor fecal transplants to carbohydrate utilization by marine fungi.

Happy reading!

General microbiome

Fresh extension of Vibrio cholerae competence type IV pili predisposes them for motor-independent retraction – Chlebek et al. – Appl Environ Microbiol

Preprint: Coordination of gene expression with cell size enables Escherichia coli to efficiently maintain motility across conditions – Honda et al. – bioRxiv

Preprint: Archival influenza virus genomes from Europe reveal genomic and phenotypic variability during the 1918 pandemic – Patrono et al. – bioRxiv

Preprint: Fluorescent protein expression as a proxy of bacterial fitness in a high throughput assay – Schlechter et al. – bioRxiv

Preprint: Nanopore sequencing provides rapid and reliable insight into microbial profiles of Intensive Care Units – Viana de Siqueira et al. – bioRxiv

Human skin microbiome

Preprint: Anatomy promotes neutral coexistence of strains in the human skin microbiome – Conwill et al. – bioRxiv

Preprint: Gene- and genome-centric dynamics shape the diversity of oral bacterial populations – Utter et al. – bioRxiv

Human gut microbiome

Preprint: Two microbiota subtypes identified in Irritable Bowel Syndrome with distinct responses to the low-FODMAP diet – Vervier et al. – bioRxiv

Strain engraftment competition and functional augmentation in a multi-donor fecal microbiota transplantation trial for obesity – Wilson et al. – Microbiome

Plant, root, and soil microbiome

Soil origin and plant genotype structure distinct microbiome compartments in the model legume Medicago truncatula – Brown et al. – Microbiome

Preprint: A novel dual enrichment strategy provides soil- and digestate-competent N2O-respiring bacteria for mitigating climate forcing in agriculture – Jonassen et al. – bioRxiv

Preprint: Temporal dynamics of microbial transcription in wetted hyperarid desert soils – León-Sobrino et al. – bioRxiv

Preprint: Metagenomic sequencing for rapid identification of Xylella fastidiosa from leaf samples – Roman-reyna et al. – BioRxiv

Preprint: Pseudomonas arenae sp. nov., Pseudomonas glycinis sp. nov. and Pseudomonas harudinis sp. nov., three novel bacterial species and plant endophytes – Seaton et al. – bioRxiv

Preprint: Phage-resistant bacteria reveal a role for potassium in root colonization – Tzipilevich & Benfey – bioRxiv

Metagenomic analysis reveals the shared and distinct features of the soil resistome across tundra, temperate prairie, and tropical ecosystems – Qian et al. – Microbiome

Water and extremophile microbiome (sea, rivers, lakes, glaciers, permafrost, high-salt)

Potential and expression of carbohydrate utilization by marine fungi in the global ocean – Baltar et al. – Microbiome

Preprint: Syntrophic H2 production enhances the performance of primarily acetate-supplemented reactors treating sulphate contaminated solutions – Hessler et al. – bioRxiv

April 23, 2021

Good morning from New Jersey! Lots of papers to share today, particularly regarding animal microbiota and new bioinformatics tools.

General microbiome

Human breast microbiome correlates with prognostic features and immunological signatures in breast cancer, Alice Tzeng et al., Genome Medicine

Pregnancy and early life

The infant gut resistome associates with E. coli, environmental exposures, gut microbiome maturity, and asthma-associated bacterial composition, Xuanji Li et al., Cell Host & Microbe

Multi-site human microbiome

Review: Microbiome-immune interactions in tuberculosis, Giorgia Mori et al., PLOS Pathogens

Human gut microbiome

Dynamic Changes in Microbiome Composition Following Mare’s Milk Intake for Prevention of Collateral Antibiotic Effect, Almagul Kushugulova et al., Frontiers in Cellular and Infection Microbiology

Review: The aging gut microbiome and its impact on host immunity, Bosco and Noti, Genes & Immunity

Animal experiments

Ingestion of Bifidobacterium longum changes miRNA levels in the brains of mice, DeVries and Horstman et al., PLOS ONE

Heat-inactivated Lactobacillus plantarum nF1 promotes intestinal health in Loperamide-induced constipation rats, Seon-Ah Park et al., PLOS ONE

The pregnane X receptor drives sexually dimorphic hepatic changes in lipid and xenobiotic metabolism in response to gut microbiota in mice, Sharon Ann Barretto et al., Microbiome

One dog’s waste is another dog’s wealth: A pilot study of fecal microbiota transplantation in dogs with acute hemorrhagic diarrhea syndrome, Arnon Gal et al., PLOS ONE

Animal microbiome

Diversity and functional landscapes in the microbiota of animals in the wild, Levin, Raab, Pinto, and Rothschild et al., Science

Microbiome reduction and endosymbiont gain from a switch in sea urchin life history, Tyler J. Carrier et al., PNAS

Diet and gut microbiome enterotype are associated at the population level in African buffalo, Claire E. Couch et al., Nature Communications

Coral microbiome changes over the day–night cycle, Alicia M. Caughman et al., Coral Reefs

An investigation of conventional microbial culture for the Naja atra bite wound, and the comparison between culture-based 16S Sanger sequencing and 16S metagenomics of the snake oropharyngeal bacterial microbiota, Mao and Chuang et al., PLOS Neglected Tropical Diseases

Plant, root, and soil microbiome

Preprint: Genome-centric analyses of seasonal phyllosphere microbiome activities in perennial crops, Adina Howe et al., bioRxiv

Influence of Plant Host and Organ, Management Strategy, and Spore Traits on Microbiome Composition, Kristi Gdanetz et al., Phytobiomes Journal

Built environment

Categorisation of culturable bioaerosols in a fruit juice manufacturing facility, Shirleen M. Theisinger et al., PLOS ONE

Bioinformatics

Preprint: Deconstructing taxa x taxa x environment interactions in the microbiota: A theoretical examination, Senay Yitbarek et al., bioRxiv

Preprint: Extended taxonomic profiling of diverse environments with mOTUs 2.6, Hans-Joachim Ruscheweyh et al., bioRxiv

Evaluation of the Microba Community Profiler for Taxonomic Profiling of Metagenomic Datasets From the Human Gut Microbiome, Donovan H. Parks et al., Frontiers in Microbiology

Supervised extraction of near-complete genomes from metagenomic samples: A new service in PATRIC, Bruce Parrello et al., PLOS ONE

March 24, 2021

Human gut microbiome

[OPINION]Targeting the Gut Microbiome to Mitigate Immunotherapy-Induced Colitis in Cancer – Chang et al – Trends in Cancer

Direct impact of commonly used dietary emulsifiers on human gut microbiota – Naimi et al. – Microbiome

Animal experiments (mouse/rat experiments, chickens/pigs on different diets)

[REVIEW]Establishing causality in Salmonella-microbiota-host interaction: The use of gnotobiotic mouse models and synthetic microbial communities – Stecher – International Journal of Medical Microbiology

Gut microbiota dysbiosis promotes age-related atrial fibrillation by lipopolysaccharide and glucose-induced activation of NLRP3-inflammasome – Zhang et al. – Cardiovascular Research

Animal microbiome (for animals in the wild)

Composition and structure of the skin microbiota of rorquals off the Eastern South Pacific – Toro et al. – FEMS Microbiology Ecology

Plant, root, and soil microbiome

[PREPRINT]Neural networks and extreme gradient boosting predict multiple thresholds and trajectories of microbial biodiversity responses due to browning – Fontaine et al. – bioRxiv

Comparative microbial antibiotic resistome between urban and deep forest environments – Zheng et al. – Environmental Microbiology Reports

Bioinformatics

[PREPRINT]Genomic characterization of three novel Desulfobacterota classes expand the metabolic and phylogenetic diversity of the Phylum – Murphy et al. – bioRxiv

March 12, 2021

Today’s digest is HUGE.

Read about the healthy urogenital microbiome profiling by culturomics, gutSMASH (Specialized Primary Metabolite Analysis From Anaerobic Bacteria), (sub)strains evolution in mice, and AMPSphere (a comprehensive catalog of antimicrobial peptides).

There are interesting results of a new metaanalysis of the neonatal microbiome, maternal strain inheritance, and persistence into adolescence, evaluation of the effect of long-term freezing storage temperature on fecal samples, and estimation of the bioinformatic carbon footprint using the freely available Green Algorithms calculator. Find out more about statistics & challenges in molecular microbiology (with a reproducible research appendix!).

NEWS: The Transbiome project is a community driven research program using crowdfunding and co-creation to discover the diversity of the neo-vaginal microbiome. You can support the project here.

Check out a list of awesome webinars, courses and podcasts. Happy Friday!

Gut microbiome

*A systematic analysis of metabolic pathways in the human gut microbiota – Victòria Pascal Andreu – bioRxiv

*Strain inheritance and neonatal gut microbiota development: A meta-analysis – Daniel Podlesny and W. Florian Fricke – International Journal of Medical Microbiology

Adaptive ecological processes and metabolic independence drive microbial colonization and resilience in the human gut – Andrea R. Watson – bioRixv

Effect of fecal microbiota transplantation on neurological restoration in a spinal cord injury mouse model: involvement of brain-gut axis – Yingli Jing – Microbiome

Review: Association between antibiotics and gut microbiome dysbiosis in children: systematic review and meta-analysis – Lucy McDonnell – Gut Microbes

Review: Salmonella versus the Microbiome – Andrew W. L. Rogers – Microbiology and Molecular Biology Reviews

Respiratory microbiome

Strain-Resolved Dynamics of the Lung Microbiome in Patients with Cystic Fibrosis – Marija Dmitrijeva – mBio

Oral microbiome

Review: Resilience of the oral microbiome – William G. Wade – Periodontology 2000

Skin microbiome

Skin microbiota and clinical associations in Netherton sindrome – Veera Sillanpää – JID Innovations

Urogenital microbiome

*Long-term stability of the urogenital microbiota of asymptomatic European women – Magdalena Ksiezarek – BMC Microbiology

Limosilactobacillus urinaemulieris sp. nov. and Limosilactobacillus portuensis sp. nov. isolated from urine of healthy women – Magdalena Ksiezarek – International Journal of Systematic and Evolutionary Microbiology

Vaginal microbiome

The structure and diversity of strain-level variation in vaginal bacteria – Brett A. Tortelli – Microbial Genomics

Obesity is associated with lower bacterial vaginosis prevalence in menopausal but not pre-menopausal women in a retrospective analysis of the Women’s Interagency HIV Study – Elizabeth Daubert – PlosOne

Bacterial biofilm formation on vaginal ring pessaries used for pelvic organ prolapse – Felicity G. Gould – International Urogynecology Journal

Animal microbiome

*Long-term storage of feces at −80 °C versus −20 °C is negligible for 16S rRNA amplicon profiling of the equine bacterial microbiome – Stefan Gavriliuc – PeerJ

Differences in the gut microbiomes of dogs and wolves: roles of antibiotics and starch – Yuting Liu – BMC Veterinary Research

An Expanded Gene Catalog of Mouse Gut Metagenomes – Jiahui Zhu – mSphere

Animal experiments

*Long-term evolution and short-term adaptation of microbiota strains and sub-strains in mice – Bahtiyar Yilmaz – Cell Host & Microbe

The gut mycobiome of healthy mice is shaped by the environment and correlates with metabolic outcomes in response to diet – Tahliyah S. Mims – Communications Biology

Functional genetics of human gut commensal Bacteroides thetaiotaomicron reveals metabolic requirements for growth across environments – Hualan Liu – Cell Reports

Tea polyphenols regulate gut microbiota dysbiosis induced by antibiotic in mice – Jie Li – Food Research International

Plant microbiome

Designing a home for beneficial plant microbiomes – Chunxu Song – Current Opinion in Plant Biology

Food

Review: Polymicrobial interaction between Lactobacillus and Saccharomyces cerevisiae: coexistence-relevant mechanisms – Zhenbo Xu – Critical Reviews in Microbiology

Viruses and phages

Viromes outperform total metagenomes in revealing the spatiotemporal patterns of agricultural soil viral communities – Christian Santos-Medellin – The ISME Journal

Review: Biases in Viral Metagenomics-Based Detection, Cataloguing and Quantification of Bacteriophage Genomes in Human Faeces, a Review – Julie Callanan – Microorganisms

Techniques

High molecular weight DNA extraction strategies for long-read sequencing of complex metagenomes – Florian Trigodet – bioRxiv

Bioinformatics

*AMPSphere: the worldwide survey of prokaryotic antimicrobial peptides – Célio Dias Santos-Júnior – Zenodo

*A Statistical Perspective on the Challenges in Molecular Microbial Biology – Pratheepa Jeganathan and Susan P. Holmes – arXiv

*The carbon footprint of bioinformatics – Jason Grealey – bioRxiv

*Make Interactive Complex Heatmaps in R – Zuguang Gu and Daniel Huebschmann – bioRxiv

Machine learning applications in microbial ecology, human microbiome studies, and environmental monitoring – Ryan B.Ghannam and Stephen M.Techtmann – Computational and Structural Biotechnology Journal

Tutorial: assessing metagenomics software with the CAMI benchmarking toolkit – Fernando Meyer – Nature Protocols

STATegra: Multi-Omics Data Integration – A Conceptual Scheme With a Bioinformatics Pipeline – Nuria Planell – Frontiers in Genetics

Exploring bacterial diversity via a curated and searchable snapshot of archived DNA sequences – Grace A. Blackwell – bioRxiv

clinker & clustermap.js: automatic generation of gene cluster comparison figures – Cameron L M Gilchrist & Yit-Heng Chooi – Bioinformatics

gapseq: informed prediction of bacterial metabolic pathways and reconstruction of accurate metabolic models – Johannes Zimmermann – Genome Biology

Webinars

mSystems Thinking Series: Diversity, Equity, and Inclusion in Microbiology – ASM – March 26

The Microbiome Centers Consortium Seminar Series – weekly seminars featuring early career researchers – Thursdays

Americas Webinar: Mother’s Milk & Baby’s Bacteria: Discoveries from the CHILD Cohort Study – Meghan Azad – April 14

Courses & Workshops

Get R Done: R Tutorials video series – Chad C. Williams

Machine Learning in Genomics: Tools, Resources, Clinical Applications and Ethics – the NHGRI Genomic Data Science Working Group of the National Advisory Council for Human Genome Research – April 13-14

Podcast

February 2021 Pod: Global Chang‪e‬ – Bengtsson-Palme Lab – Microbiology Lab Pod

Enhancers with Molly Gasperini – Jacob Schreiber – The Bioinformatics Chat

Matthew Schechter: Metagenomics History Part 1 and 2 – Leo Elworth – The Bioinformatics and Beyond Podcast

Ep. 33 Oyster Microbiome with Dr. Rachel Diner – Julie Laurin – Planet B612

Art

UMich Microbial Masterpieces – Community for microbe enthusiasts and artists – Erica Gardner, Anna Urso, Bruna Iunes Sanches
*Check out their giant Winogradsky Panel in the Duderstadt Center gallery

March 4, 2021

Happy Thursday from San Francisco! Today’s Microbiome Digest includes: a paper by Marbouty et al. in which a large number of phages and their interacting bacteria were identified in the healthy human gut; a thorough examination by Zhu et al. of the composition and metabolic potential of cave-dwelling bacteria, including sequencing of 14 new bacterial species; and a study by Mu et al. which found that the maternally-derived microbe Lactobacillus reuteri promotes immunoglobulin A production in the neonatal gut.

There is also a study by Serrano-Villar et al. which examined the use of fecal microbiota transplantation (FMTs) in HIV patients. The authors observed that FMT led to engraftment of two bacterial families–Lachnospiraceae and Ruminococcaceae–typically depleted in HIV-infected subjects and decreased levels of a plasma biomarker of intestinal permeability. While the findings are interesting, I remain skeptical of the appropriateness of FMTs in this context. Instead of an FMT–which requires donors and screening of their stool to ensure quality and safety–why not use a probiotic cocktail of Lachnospiraceae and Ruminococcaceae family members and perhaps include prebiotic factors to try to promote engraftment?

Additionally, there is a great article by Ras et al. discussing the results of a pilot study that successfully implemented microbiome-related bioinformatics courses across 11 African countries.

Pregnancy and Early Life
Distinct Changes Occur in the Human Breast Milk Microbiome Between Early and Established Lactation in Breastfeeding Guatemalan Mothers. – Gonzales, E. et al., Frontiers in Microbiology.

Human Skin Microbiome
Spermidine-induced recovery of human dermal structure and barrier function by skin microbiome. – Kim, G. et al. Communications Biology.

Human Vaginal Microbiome
Influence of dapivirine vaginal ring use on cervicovaginal immunity and functional microbiome in adolescent girls. – Farr Zuend, C. et al., AIDS.

Mapping the entire functionally active endometrial microbiota. – Sola-Leyva, A. et al., Human Reproduction.

Genomic relatedness and clinical significance of Streptococcus mitis strains isolated from the urogenital tract of sexual partners. – Mores, C.R. et al., Microbial Genomics.

Human Gut Microbiome
Identification of an N-acetylneuraminic acid-presenting bacteria isolated from a human microbiome. – Han, Z. et al., Scientific Reports.

Fecal microbiota transplantation in HIV: A pilot placebo-controlled study. – Serrano-Villar, S. et al., Nature Communications.

Gastrointestinal microbiota composition predicts peripheral inflammatory state during treatment of human tuberculosis. – Wipperman, M.F. et al., Nature Communications.

Animal Experiments
Regulation of neonatal IgA production by the maternal microbiota. – Mu, Q. et al., PNAS.

Lysates of Methylococcus capsulatus Bath induce a lean-like microbiota, intestinal FoxP3+RORγt+IL-17+ Tregs and improve metabolism. – Jensen, B.A.H., et al., Nature Communications.

Sex-dependent modulation of immune development by secretory IgA–coated Lactobacillus reuteri isolated from breast milk. – Qi, C. et al., Journal of Dairy Science.

Oral berberine improves brain dopa/dopamine levels to ameliorate Parkinson’s disease by regulating gut microbiota. – Wang, Y. et al., Signal Transduction and Targeted Therapy.

Animal Microbiome
Lactobacillus reuteri-derived extracellular vesicles maintain intestinal immune homeostasis against lipopolysaccharide-induced inflammatory responses in broilers. – Hu, R. et al., Journal of Animal Science and Biotechnology.

Plant, Root, and Soil Microbiome
Dicer-like proteins influence Arabidopsis root microbiota independent of RNA-directed DNA methylation. – Kaushal, R. et al., Microbiome.

Succession of the Resident Soil Microbial Community in Response to Periodic Inoculations. – Wang, Z. et al., Applied and Environmental Microbiology.

Climate change alters temporal dynamics of alpine soil microbial functioning and biogeochemical cycling via earlier snowmelt. – Broadbent, A.A.D. et al., ISME Journal.

Water and Extremophile Microbiome
Microbial Community Structure Driven by a Volcanic Gradient in Glaciers of the Antarctic Archipelago South Shetland. – García-Lopez, E. et al., Microorganisms.

Effect of polymer type on the colonization of plastic pellets by marine bacteria. – Hansen, J. et al., FEMS Microbiology Letters.

Lifestyle of sponge symbiont phages by host prediction and correlative microscopy. – Jahn, M.T. et al., ISME Journal.

Bacteria and Metabolic Potential in Karst Caves Revealed by Intensive Bacterial Cultivation and Genome Assembly. – Zhue, H-Z et al., Applied and Environmental Microbiology.

Phages and Viruses
MetaHiC phage-bacteria infection network reveals active cycling phages of the healthy human gut. – Marbouty, M. et al., Elife.

Bioinformatics
On the evolutionary origins of host–microbe associations. – Sieber, M. et al., PNAS.

Ecology-guided prediction of cross-feeding interactions in the human gut microbiome. – Goyal, A. et al., Nature Communications.

Using a multiple-delivery-mode training approach to develop local capacity and infrastructure for advanced bioinformatics in Africa. – Ras, V. et al., PLoS Computational Biology.

Techniques
Amplicon-based skin microbiome profiles collected by tape stripping with different adhesive film dressings: a comparative study. – Ogai, K. et al., BMC Microbiology.

High-Resolution Differentiation of Enteric Bacteria in Premature Infant Fecal Microbiomes Using a Novel rRNA Amplicon. – Graf, J. et al., mBio.

February 24, 2021

Today’s digest is about functional analyses of microbial community in anoxic sites, microbial life in billions of years old fluid inclusions, development and use of human skin commensal, expanded pig metagenome catalogue and a brilliant review on advances in RNAseq technologies to decipher host-microbiota interactions. Happy reading!

General microbiome

Taxonomic and functional analyses of intact microbial communities thriving in extreme, astrobiology-relevant, anoxic sites – Alexandra Kristin Bashir – Microbiome

Pseudomonas kielensis sp. nov. and Pseudomonas baltica sp. nov., isolated from raw milk in Germany – Stefanie Gieschler – International Journal of Systematic and Evolutionary Microbiology

Human microbiome

Development of a human skin commensal microbe for bacteriotherapy of atopic dermatitis and use in a phase 1 randomized clinical trial – Teruaki Nakatsuji – Nature Medicine

Gut microbiome diversity is an independent predictor of survival in cervical cancer patients receiving chemoradiation – Travis T. Sims – Communications Biology

Characterization of the human skin resistome and identification of two microbiota cutotypes – Zhiming Li – Microbiome

Microbial analyses of blood spot surfaces collected from a laboratory and the bathroom of a female single-person household under different environmental conditions – Hee Sang You – FEMS Microbiology Letters

Animal microbiome

Antidepressants fluoxetine and amitriptyline induce alterations in intestinal microbiota and gut microbiome function in rats exposed to chronic unpredictable mild stress – Weijie Zhang – Translational Psychiatry

Ginsenoside Rk3 Ameliorates Obesity-Induced Colitis by Regulating of Intestinal Flora and the TLR4/NF-κB Signaling Pathway in C57BL/6 Mice – Hongwei Chen – Journal of Agricultural and Food Chemistry

Dietary anthocyanin-rich extract of açai protects from diet-induced obesity, liver steatosis, and insulin resistance with modulation of gut microbiota in mice – Haizhao Song – Nutrition

Effects of supplementing sow diets during late gestation with Pennisetum purpureum on antioxidant indices, immune parameters and faecal microbiota – Peng‐Fei Huang – veterinary Medicine and Science

Alterations in the gut microbiome and metabolic profile in rats acclimated to high environmental temperature – Yang Cao – Microbial Biotechnology

The pelvic flexure separates distinct microbial communities in the equine hindgut – Kailee J. Reed – Scientific Reports

Effects of urolithins on obesity-associated gut dysbiosis in rats fed on a high-fat diet – Abdulrasheed O. Abdulrahman – International Journal of Food Sciences and Nutrition

Functional Foods

Prebiotic Lactulose Ameliorates the Cognitive Deficit in Alzheimer’s Disease Mouse Model through Macroautophagy and Chaperone-Mediated Autophagy Pathways – Yan-Suan Lee – Journal of Agricultural and Food Chemistry

Water microbiome

Ingredients for microbial life preserved in 3.5 billion-year-old fluid inclusions – Helge Mißbach – Nature Communications

Techniques

Expanded catalog of microbial genes and metagenome-assembled genomes from the pig gut microbiome – Congying Chen – Nature Communications

Cross-species RNA-seq for deciphering host–microbe interactions – Alexander J. Westermann – Nature Reviews Genetics

Computational modeling of the gut microbiota reveals putative metabolic mechanisms of recurrent Clostridioides difficile infection – Michael A. Henson – Plos Computational Biology

An ambient-temperature storage and stabilization device performs comparably to flash-frozen collection for stool metabolomics in infants – Sivapriya Ramamoorthy – BMC Microbiology

Ecological rules for the assembly of microbiome communities – Katharine Z. Coyte – Plos Biology