November 8, 2022

Greetings from Pittsburgh, PA!

It’s election day here, which means I have low grade nausea and am looking for a distraction. If you’re in the same boat, check out today’s awesome articles on a holobiont deep sea shrimp, plant-microbiome assemblies of poplar trees, and viral community-wide auxiliary metabolic genes. I also included a few interesting preprints, my favorite of which is noted below and uses a microbiome public dataset to compare different normalization and transformation methods.

Animal microbiome

A novel and dual digestive symbiosis scales up the nutrition and immune system of the holobiont Rimicaris exoculata – Aubé et al. – Microbiome

Plant, root, and soil microbiome

Plant sex affects plant-microbiome assemblies of dioecious Populus cathayana trees under different soil nitrogen conditions – Guo et al. – Microbiome

Phages and viruses

Viral community-wide auxiliary metabolic genes differ by lifestyles, habitats, and hosts – Luo et al. – Microbiome

Techniques

*Preprint: Alpha and beta-diversities performance comparison between different normalization methods and centered log-ratio transformation in a microbiome public dataset – Bars-Cortina – bioRxiv

Preprint: Noise reduction strategies in metagenomic chromosome confirmation capture to link antibiotic resistance genes to microbial hosts – McCallum et al. – bioRxiv

Preprint: Targeted metagenomics using probe capture detects a larger diversity of nitrogen and methane cycling genes in complex microbial communities than traditional metagenomics – Siljanen et al. – bioRxiv

August 19, 2022

Today’s digest is short and sweet! We have articles on the gut microbiota in rats, the influence of host genetics on the leaf fungal microbiome, and biofilm fouling in drinking water. There are also two manuscripts which provide tips for pathway enrichment analysis and biomarker discovery.

Happy reading! Also, if you’re in Scotland, consider checking out the enormous E. coli in Edinburgh this weekend!

Animal experiments

Effects of sea salt intake on metabolites, steroid hormones, and gut microbiota in rats – Chanmuang et al. – PLOS One

Plant, root, and soil microbiome

The changing influence of host genetics on the leaf fungal microbiome throughout plant development – Karasov & Lundberg – PLOS Biology

Water and extremophile microbiome

Impacts of temperature and hydraulic regime on discolouration and biofilm fouling in drinking water distribution systems – Fish et al. – PLOS Water

Bioinformatics

Nine quick tips for pathway enrichment analysis – Chicco & Agapito – PLOS Computational Biology

Ten quick tips for biomarker discovery and validation analyses using machine learning – Diaz-Uriarte et al. – PLOS Computational Biology

July 14, 2022

Today’s digest has multiple articles on statistical and bioinformatic techniques! Also included is a job ad from my research team, so check it out if you’re interested in gaining geomicrobiology research experience at a national laboratory.

Events and jobs

Our geomicrobiology research group at the National Energy Technology Lab – Pittsburgh is looking for a technician/researcher. Exact responsibilities are somewhat flexible depending on interest and education-level; we are accepting applications from current students at all levels as well as postdocs.

General microbiome

Mycobacteriophages: From Petri dish to patient – Hatfull – PLOS Pathogens

Animal microbiome

Reconstructing the ecosystem context of a species: Honey-borne DNA reveals the roles of the honeybee – Wirta et al. – PLOS One

Plant, root, and soil microbiome

Patterns of microbial communities were shaped by bioavailable P along the elevation gradient of Shergyla Mountain, as determined by analysis of phospholipid fatty acids – Ba et al. – PLOS One

Preprint: Soil chemistry and soil history significantly structure oomycete communities in Brassicaceae crop rotations – Blakney et al. – bioRxiv

Community succession and straw degradation characteristics using a microbial decomposer at low temperature – Zhang et al. – PLOS One

Built Environment

Indoor air microbial load, antibiotic susceptibility profiles of bacteria, and associated factors in different wards of Arba Minch General Hospital, southern Ethiopia – Kayta et al. – PLOS One

Techniques

moreThanANOVA: A user-friendly Shiny/R application for exploring and comparing data with interactive visualization – Jiang et al. – PLOS One

Preparation of biological monolayers for producing high-resolution scanning electron micrographs – Mentor et al. – PLOS One

The accuracy of absolute differential abundance analysis from relative count data – Roche & Mukherjee – PLOS Computational Biology

AC-PCoA: Adjustment for confounding factors using principal coordinate analysis – Wang et al. – PLOS Computational Biology

Microbes in the news

The Art of Science: Students Participate in University’s First-Ever Bio-Art Class – Bernardi – Syracuse University News

July 13, 2022

Today’s digest features studies on the leaf-microbiome of 🍅 and 🍓 plants (+ bumblebees and mites), human gut and wastewater resistome, and more. Happy reading!

Reproductive tract

Female reproductive tract microbiota and recurrent pregnancy loss: a nested case-control study – Pirkko Peuranpää – Reproductive BioMedicine Online

Gut microbiome

Dynamic metabolic interactions and trophic roles of human gut microbes identified using a minimal microbiome exhibiting ecological properties – Sudarshan A. Shetty – Journal of the International Society for Microbial Ecology

*Within-patient evolution of plasmid-mediated antimicrobial resistance – Javier DelaFuente – bioRxiv

An expanded reference map of the human gut microbiome reveals hundreds of previously unknown species – Sigal Leviatan – Nature Communications

Animal microbiome

Carpenter Bees (Xylocopa) Harbor a Distinctive Gut Microbiome Related to That of Honey Bees and Bumble Bees – Jo-anne C. Holley – Applied and Environmental Microbiology

Animal experiments

Gardnerella Exposures Alter Bladder Gene Expression and Augment Uropathogenic Escherichia coli Urinary Tract Infection in Mice – Nicole M. Gilbert – Frontiers in Cellular and Infection Microbiology

Plant microbiome

*The Greenhouse Phyllosphere Microbiome and Associations with Introduced Bumblebees and Predatory Mites – Marie Legein – Microbiology Spectrum

Food microbiome

Longitudinal, multi-platform metagenomics yields a high-quality genomic catalog and guides an in vitro model for cheese communities – Christina C. Saak – bioRxiv

New insights of bacterial communities in fermented vegetables from shotgun metagenomics and identification of antibiotic resistance genes and probiotic bacteria – Muhammad Yasir – Food Research International

Water microbiome

*High-resolution characterisation of short-term temporal variability in the taxonomic and resistome composition of wastewater influent – Kevin Kaibond Chau – bioRxiv

Pilot investigation on biostability of drinking water distribution systems under water source switching – Kejia Zhang – Applied Microbiology and Biotechnology

Bioinformatics

*BinaRena: a dedicated interactive platform for human-guided exploration and binning of metagenomes – Michael J. Pavia – bioRxiv

getSequenceInfo: a suite of tools allowing to get genome sequence information from public repositories – Vincent Moco – BMC Bioinformatics

baseLess: Lightweight detection of sequences in raw MinION data – Ben Noordijk – bioRxiv

June 13, 2022

Today’s digest features metagenomics for clinical UTI diagnostics, microbial diversity in kombucha tea, microbial source tracking using single nucleotide variants, and more. Happy reading!

Neonatal microbiome

Editorial: More data needed on neonatal microbiome seeding – W. Florian Fricke & Jacques Ravel – Microbiome

Urinary microbiome

The Urobiomes of Adult Women With Various Lower Urinary Tract Symptoms Status Differ: A Re-Analysis – Cara Joyce – Frontiers in Cellular and Infection Microbiology

*Metagenomic DNA sequencing for semi-quantitative pathogen detection from urine: a prospective, laboratory-based, proof-of-concept study – Victoria A Janes – The Lancet Microbe

Gut microbiome

Perspective: Tiny Gatekeepers: Microbial Control of Host Drug Transporters – Than S. Kyaw and Peter J. Turnbaugh – Clinical Pharmacology & Therapeutics

Host hepatic metabolism is modulated by gut microbiota-derived sphingolipids – Henry H. Le – Cell Host & Microbe

Linking gastrointestinal microbiota and metabolome dynamics to clinical outcomes in paediatric haematopoietic stem cell transplantation – Gintare Vaitkute – Microbiome

Animal microbiome

Microbiomes of microscopic marine invertebrates do not reveal signatures of phylosymbiosis – Vittorio Boscaro – Nature Microbiology

Water microbiome

Cyanopeptides restriction and degradation co-mediate microbiota assembly during a freshwater cyanobacterial harmful algal bloom (CyanoHAB) – Han Gao – Water Research

Low diversity and microdiversity of comammox bacteria in wastewater systems suggests wastewater-specific adaptation within the Ca. Nitrospira nitrosa cluster – Irmarie Cotto – bioRxiv

Soil microbiome

Substrate Utilization and Competitive Interactions Among Soil Bacteria Vary With Life-History Strategies – Ying Wang – Frontiers in Microbiology

In-depth characterization of denitrifier communities across different soil ecosystems in the tundra – Igor S. Pessi – bioRxiv

Food

*Microbial Diversity and Interaction Specificity in Kombucha Tea Fermentations – Elizabeth A. Landis – mSystems

Spontaneous Riboflavin-Overproducing Limosilactobacillus reuteri for Biofortification of Fermented Foods – Irina Spacova, Sarah Ahannach – Frontiers in Nutrition

Bioinformatics

coda4microbiome: compositional data analysis for microbiome studies – M.Luz Calle & Antoni Susin – bioRxiv

GeneToList: A web application to assist with gene identifiers for the non-bioinformatics-savvy scientist – Joshua D. Breidenbach – bioRxiv

*Microbiome source tracking using single nucleotide variants – Leah Briscoe – bioRxiv

June 3, 2022

Happy Friday!

Today’s digest has articles on COVID-19 vaccine hesitancy, a new R package to extract network backbones, and a class of novel antibiotics that targets a Mycobacterium tuberculosis PE-PGRS protein. There also preprints on biofilm winkling in Bacillus subtilis, the dental calculus microbiome, and the relationship between eukaryotic genomes and ocean plankton in a global metagenomic dataset.

Events

Next week is ASM Microbe! I’ll be there, wearing a KN-95 and clutching a box of rapid tests. Feel free to comment or reach out if you’re also attending.

COVID-19

Oro-facial mucocutaneous manifestations of Coronavirus Disease-2019 (COVID-19): A systematic review – Fakhruddin et al. – PLOS ONE

Preprint: The salivary and nasopharyngeal microbiomes are associated with SARS-CoV-2 infection and disease severity – Kim et al. – bioRxiv

Determinants of the COVID-19 vaccine hesitancy spectrum – Piltch-Loeb et al. – PLOS ONE

General microbiome

Preprint: Fatty acid synthesis knockdown promotes biofilm wrinkling and inhibits sporulation in Bacillus subtilis – Arjes et al. – bioRxiv

Association of Strongyloides stercoralis infection and type 2 diabetes mellitus in northeastern Thailand: Impact on diabetic complication-related renal biochemical parameters – Yingklang et al. – PLOS ONE

Analysis of secondary metabolite gene clusters and chitin biosynthesis pathways of Monascus purpureus with high production of pigment and citrinin based on whole-genome sequencing – Zhang et al. – PLOS ONE

Human respiratory microbiome

A novel class of antimicrobial drugs selectively targets a Mycobacterium tuberculosis PE-PGRS protein – Seo et al. – PLOS Biology

Human oral microbiome

Preprint: Assessing the influence of the Mediterranean diet on dental calculus microbiome composition: a pilot study – Innocenti et al. – bioRxiv

Human gut microbiome

Lactobacillus plantarum improves LPS-induced Caco2 cell line intestinal barrier damage via cyclic AMP-PKA signaling – Wei et al. – PLOS ONE

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

Preprint: Eukaryotic genomes from a global metagenomic dataset illuminate trophic modes and biogeography of ocean plankton – Alexander et al. – bioRxiv

Bioinformatics

backbone: An R package to extract network backbones – Neal – PLOS ONE


May 5, 2022

Today’s digest features a review on the role of bacterial translocation (especially oral-gut axis) in health and disease, a proof-of-concept study on probiotics on processing of negative emotions in humans, and more. Happy reading!

Let’s talk microbiome science at the next #MVIF!

Sterile (?) environment

Comprehensive human amniotic fluid metagenomics supports the sterile womb hypothesis – HanChen Wang – Scientific Reports

Probiotics

Lactobacillus acidophilus, L. plantarum, L. rhamnosus, and L. reuteri Cell-Free Supernatants Inhibit Candida parapsilosis Pathogenic Potential upon Infection of Vaginal Epithelial Cells Monolayer and in a Transwell Coculture System In Vitro – Luca Spaggiari – Microbiology Spectrum

*Probiotic Mixture Containing Lactobacillus helveticus, Bifidobacterium longum and Lactiplantibacillus plantarum Affects Brain Responses Toward an Emotional Task in Healthy Subjects: A Randomized Clinical Trial – Julia Rode – Frontiers in Nutrition

Vaginal microbiome

Identification and characterization of novel endolysins targeting Gardnerella vaginalis biofilms to treat bacterial vaginosis – Sara Arroyo-Moreno – npj Biofilms and Microbiomes

Gut microbiome

*Review: Deciphering mechanisms and implications of bacterial translocation in human health and disease – Shen Jin – Current Opinion in Microbiology

Two Competing Guilds as a Core Microbiome Signature for Chronic Diseases – Guojun Wu – bioRxiv

Neonatal Immune Challenge influences the Microbiota and Behaviour in a Sexually Dimorphic Manner – A. Cuskelly – Brain, Behavior, and Immunity

Review: Diet- and microbiota-related metabolite, 5-aminovaleric acid betaine (5-AVAB), in health and disease – Retu Haikonen – Trends in Endocrinology & Metabolism

Gut mycobiome

Review: “Molding” immunity—modulation of mucosal and systemic immunity by the intestinal mycobiome in health and disease – Mackenzie W. Gutierrez – Nature Mucosal Immunology

Animal experiments

Evolution of the murine gut resistome following broad-spectrum antibiotic treatment – Laura de Nies – Nature Communications & Behind the paper here.

Plant, root/soil microbiome

*Sugars dominate the seagrass rhizosphere – E. Maggie Sogin – Nature Ecology & Evolution

Viruses

A snapshot of the global drinking water virome: Diversity and metabolic potential vary with residual disinfectant use – Bridget Hegarty – Water Research

Techniques

Fast quantification of gut bacterial species in cocultures using flow cytometry and supervised classification – Charlotte C. van de Velde – ISME Communications

Bioinformatics

A deep siamese neural network improves metagenome-assembled genomes in microbiome datasets across different environments – Shaojun Pan – Nature Communications

HiFine: integrating Hi-c-based and shotgun-based methods to reFine binning of metagenomic contigs – Yuxuan Du and Fengzhu Sun – Bioinformatics

happi: a Hierarchical Approach to Pangenomics Inference – Pauline Trinh – bioRxiv

Investigating the impact of database choice on the accuracy of metagenomic read classification for the rumen microbiome – Rebecca H. Smit – bioRxiv

TAMPA: interpretable analysis and visualization of metagenomics-based taxon abundance profiles – Varuni Sarwal – bioRxiv

March 7, 2022

hard to do science

Originally tweeted by Peter Fabian (@PeterFabianLab) on March 4, 2022.


General microbiome

Microbial invasion of a toxic medium is facilitated by a resident community but inhibited as the community co-evolves – Philippe Piccardi – bioRxiv

Could a Focus on the “Why” of Taxonomy Help Taxonomy Better Respond to the Needs of Science and Society? – Leighton Pritchard – Preprints

Vaginal microbiome

Cysteine dependence of Lactobacillus iners is a potential therapeutic target for vaginal microbiota modulation – Seth M. Bloom – Nature Microbiology

Citizen-science map of the vaginal microbiome – Sarah Lebeer – Research Square

Insight into the ecology of vaginal bacteria through integrative analyses of metagenomic and metatranscriptomic data – Michael T France – Genome Biology

Urinary microbiome

Review: The gut, vaginal, and urine microbiome in overactive bladder: a systematic review – Christina Sze – International Urogynecology Journal

Gut microbiome

Identification of antimicrobial peptides from the human gut microbiome using deep learning – Yue Ma – Nature Biotechnology

Microbiome risk profiles as biomarkers for inflammatory and metabolic disorders – Amira Metwaly – Nature Reviews Gastroenterology & Hepatology

Animal microbiome

Temporal variations shape the gut microbiome ecology of the moth Brithys crini – Jesús Marín-Miret – Environmental Microbiology

Bioinformatics

Systematically assessing microbiome–disease associations identifies drivers of inconsistency in metagenomic research – Braden T. Tierney – PlosBiology

MultiBaC: An R package to remove batch effects in multi-omic experiments – Manuel Ugidos – Bioinformatics

HiCBin: binning metagenomic contigs and recovering metagenome-assembled genomes using Hi-C contact maps – Yuxuan Du & Fengzhu Sun – Genome Biology


TOMORROW MVIF #7 and the latest microbiome science!

Hey #microbiome people! 🦠
In MARCH there is #MVIF #7!

You can register for free here:
https://hopin.com/events/microbiome-vif-n-7

⭐️Keynote Speaker: prof Willem De Vos ⭐️

📅Check out day and time in your city here:
https://www.microbiome-vif.org/program/

See you there! 😎

Originally tweeted by Microbiome Virtual International Forum (@MicrobiomeVIF) on February 17, 2022.

February 4, 2022

Today’s digest is super diverse (read cool!): novel genes from uncultivated prokaryotes, a new Latilactobacillus species isolated from leaves of a strawberry plant (read the full 🍓 story behind the paper!), the benchmarking study of taxonomic profilers for long-read shotgun metagenomic datasets, and more. The first Issue of a new international peer-reviewed, open access, microbiome-oriented journal – the Microbiome Research Reports – is out with one original article, one perspective and four reviews.
And, a bit of shameless self-promotion, check out my preprint on urinary microbiome of healthy European women!
Happy Friday!

Global microbiome

*Functional and evolutionary significance of unknown genes from uncultivated taxa – Alvaro Rodríguez – bioRxiv

Ear microbiome

The adult microbiome of healthy and otitis patients: Definition of the core healthy and diseased ear microbiomes – Maria Burton – PlosOne

Respiratory microbiome

Intestinal Akkermansia muciniphila predicts clinical response to PD-1 blockade in patients with advanced non-small-cell lung cancer – Lisa Derosa – Nature Medicine

Associations and recovery dynamics of the nasopharyngeal microbiota during influenza‑like illness in the aging population – Sudarshan A. Shetty – Scientific Reports

Genomic diversity and antimicrobial resistance of Prevotella species isolated from chronic lung disease airways – Kasey A. Webb – Microbial Genomics

Gut microbiome

Effect of host genetics on the gut microbiome in 7,738 participants of the Dutch Microbiome Project – Esteban A. Lopera-Maya – Nature Genetics


The gut bacterial community potentiates Clostridioides difficile infection severity – Nicholas A Lesniak – bioRxiv

Emergent evolutionary forces in spatial models of microbial growth in the human gut microbiota – Olivia M. Ghosh and Benjamin H. Good – bioRxiv

Review: Microbiome-based therapeutics – Matthew T. Sorbara and Eric G. Pamer – Nature Reviews Microbiology

Review: Multimodal interactions of drugs, natural compounds and pollutants with the gut microbiota –Anna E. Lindell – Nature Reviews Microbiology

Review: Gut microbiome and health: mechanistic insights – Willem M de Vos – Gut

Vaginal microbiome

Gardnerella vaginalis induces matrix metalloproteinases in the cervicovaginal epithelium through TLR-2 activation – Kristin D. Gerson – American Journal of Obstetrics & Gynecology/SMFM 42nd Annual Meeting: The Pregnancy Meeting

Urinary microbiome

*Extended bacterial diversity of the urinary microbiome of reproductive-age healthy European women captured by culturomics and long-read amplicon sequencing – Svetlana Ugarcina Perovic – bioRxiv


Phylogenetic analysis and antimicrobial susceptibility profile of uropathogens – Hanif Ullah – PlosOne

Multidrug-resistant Uro-associated Escherichia coli Populations and Recurrent Urinary Tract Infections in Patients Performing Clean Intermittent Self-catheterisation – Catherine Mowbray – European Urology Open Science

Plant microbiome

*Latilactobacillus fragifolii sp. nov., isolated from leaves of a strawberry plant (Fragaria x ananassa) – Marie Legein – International Journal of Systematic and Evolutionary Microbiology

Ecology and potential functions of plant-associated microbial communities in cold environments – Malek Marian – FEMS Microbiology Ecology

Animal microbiome

Gut microbiome of the largest living rodent harbors unprecedented enzymatic systems to degrade plant polysaccharides – Lucelia Cabral – Nature Communications

Review: Pesticide-induced disturbances of bee gut microbiotas – Michelle Z Hotchkiss – FEMS Microbiology Reviews

Animal experiments

Effect of a freeze-dried coffee solution in a high-fat diet-induced obesity model in rats: Impact on inflammatory response, lipid profile, and gut microbiota – Marilia Hermes Cavalcanti – PlosOne

Gut microbiota and butyrate contribute to nonalcoholic fatty liver disease in premenopause due to estrogen deficiency – Limin Liu – PlosOne

Techniques

BIOME-Preserve: A novel storage and transport medium for preserving anaerobic microbiota samples for culture recovery – Embriette R. Hyde – PlosOne

Species-targeted sorting and cultivation of commensal bacteria from the gut microbiome using flow cytometry under anaerobic conditions – Samuel Bellais – Microbiome

Bioinformatics

*Evaluation of taxonomic profiling methods for long-read shotgun metagenomic sequencing datasets – Daniel M Portik – bioRxiv

AGAMEMNON: an Accurate metaGenomics And MEtatranscriptoMics quaNtificatiON analysis suite – Giorgos Skoufos – Genome Biology

McComedy: A user-friendly tool for next-generation individual-based modeling of microbial consumer-resource systems – André Bogdanowski – Plos Computational Biology

VeChat: Correcting errors in long reads using variation graphs – Xiao Luo – bioRxiv

ReadBouncer: Precise and Scalable Adaptive Sampling for Nanopore Sequencing – Jens-Uwe Ulrich – bioRxiv


📻

January 10, 2022

Today’s digest features studies on glycosaminoglycans degradation by urinary microbiome, social network of honeybees, improved DNA extraction for low biomass samples, the LotuS2 tool for amplicon sequencing analysis, and more. Happy Monday!


Gut microbiome

Review: The role of the microbiota in the management of intensive care patients – Piotr Szychowiak – Annals of Intensive Care

Review: The Gut Microbiome in Myalgic Encephalomyelitis (ME)/Chronic Fatigue Syndrome (CFS) – Rahel S. König – Frontiers in Immunology

Review: Opioid Use, Gut Dysbiosis, Inflammation, and the Nervous System – Richa Jalodia – Journal of Neuroimmune Pharmacology

Urinary microbiome

*A Semi-Quantitative Assay to Measure Glycosaminoglycan Degradation by the Urinary Microbiota – Vivian H. Nguyen – Frontiers in Cellular and Infection Microbiology

Vaginal microbiome

Composition and Stability of the Vaginal Microbiota of Pregnant Women With Inflammatory Bowel Disease – Janet E Hill – Inflammatory Bowel Diseases

Skin microbiome

*Anatomy promotes neutral coexistence of strains in the human skin microbiome – Arolyn Conwill – Cell Host & Microbe

Water microbiome

Tenets of a Holistic Approach to Drinking Water-Associated Pathogen Research, Management, and Communication – Caitlin Proctor – Water Research

Animal microbiome

Review: Possibilities and limits for using the gut microbiome to improve captive animal health – Jessica Diaz & Aspen T. Reese – Animal Microbiome

The mosquito microbiome includes habitat-specific but rare symbionts – Hans Schrieke – Computational and Structural Biotechnology Journal

*The gut microbiota affects the social network of honeybees – Joanito Liberti – bioRxiv

Techniques and methods

Combined assembly of long and short sequencing reads improve the efficiency of exploring the soil metagenome – Guoshun Xu – BMC Genomics

Enrichment of gut microbiome strains for cultivation-free genome sequencing using droplet microfluidics – Anna Pryszlak – Cell Report Methods

When to suspect contamination rather than colonization – lessons from a putative fetal sheep microbiome – Simone Bihl – Gut Microbes

*Microvolume DNA extraction methods for microscale amplicon and metagenomic studies – Anna R. Bramucci – ISME Communications

Bioinformatics

*LotuS2: An ultrafast and highly accurate tool for amplicon sequencing analysis – Ezgi Özkurt – bioRxiv

Generating lineage-resolved, complete metagenome-assembled genomes from complex microbial communities – Derek M. Bickhart – Nature Biotechnology