July 29, 2020

● General microbiome

[REVIEW] The dialogue between unconventional T cells and the microbiota – Lin et al. – Mucosal Immunology

Human skin microbiome

Stability of Skin Microbiome at Sacral Regions of Healthy Young Adults, Ambulatory Older Adults, and Bedridden Older Patients After 2 Years – Ogai et al. – Biological Research For Nursing

The skin microbiome as a clinical biomarker in atopic eczema: Promises, navigation, and pitfalls – Reiger et al. – Journal of Allergy and Clinical Immunology

● Human gut microbiome

Feeding Bugs to Bugs: Edible Insects Modify the Human Gut Microbiome in an in vitro Fermentation Model – Young et al. – Front. Microbiol.

● Plant, root, and soil microbiome/metabolome

[REVIEW] The Application of Metabolomics for the Study of Cereal Corn (Zea mays L.) – Lena Gálvez Ranilla – Metabolites

Elevational is the main factor controlling the soil microbial community structure in alpine tundra of the Changbai Mountain – Tang et al. – Scientific Reports

● Techniques

A guide to deciphering microbial interactions and metabolic fluxes in microbiome communities – Maciek R Antoniewicz – Current Opinion in Biotechnology

July 27, 2020

Greetings from Pittsburgh!

Saturday and Sunday’s digests were packed full of great articles, which means the week is off to a slower start than usual. We’ve got two environmentally focused preprints that I am super excited about, a paper demonstrating how microbiota can be dosed in order to help mice mitigate intestinal cancer and inflammation, and a paper focused on the eco-thermodynamics of methanogenic bioprocesses. Enjoy!

Animal experiments

Microbiota from alginate oligosaccharide-dosed mice successfully mitigated small intestinal mucositis – Zhang et al. – Microbiome

Water and extremophile microbiome

Preprint: Distinct microbial communities along the chronic oil pollution continuum of the Persian Gulf converge with oil spill accidents – Somee et al. – BioRxiv

Catabolism and interactions of uncultured organisms shaped by eco-thermodynamics in methanogenic bioprocesses – Nobu et al. – Microbiome

Preprint: Freshwater monitoring by nanopore sequencing – Urban et al. – bioRxiv

July 26, 2020

General microbiome

No endospore formation confirmed in members of the phylum Proteobacteria – Polina Beskrovnaya – bioRxiv

Interbacterial competition and anti-predatory behavior of environmental Vibrio cholerae strains – Natalia C. Drebes Doerr – bioRxiv

The kleboxymycin biosynthetic gene cluster is encoded by several species belonging to the Klebsiella oxytoca complex – Preetha Shibu – bioRxiv

Plant, root, and soil microbiome

POPULATION GENOMICS REVEALS MOLECULAR DETERMINANTS OF SPECIALIZATION TO TOMATO IN THE POLYPHAGOUS FUNGAL PATHOGEN BOTRYTIS CINEREA – Alex Mercier – bioRxiv

Phages and viruses

Scientometric Trends for Coronaviruses and Other Emerging Viral Infections – Dima Kagan – bioRxiv

Bioinformatics

Niche and local geography shape the pangenome of wastewater- and livestock-associated Enterobacteriaceae – Liam P Shaw – bioRxiv

Techniques

Comparing DNA Extraction and 16s Amplification Methods for Plant-Associated Bacterial Communities – Cecelia Giangacomo – bioRxiv

Microrisk Lab: an online freeware for predictive microbiology – Yangtai Liu – bioRxiv

Microbes in the news 

Human microbiome project paved way for poultry research – WATTAgNet

Microbes on the market

SeqBiome’s clients already include Nestlé, Mars Petcare, Atlantia and Microbion, among others. – Silicon Republic

Global Human Microbiome Sequencing Market 2020 Industry Research Strategy, Outlook and Product Development to 2025 – Bandera County Courier

July 25, 2020

Good morning and happy Saturday y’all! Today’s digest is brief, but covers some fascinating papers including: small RNAs regulating gut microbe metabolism; epigenetics linking the early-life airway microbiota with allergic rhinitis; and the impact of gut microbial composition on vagal innervation. I’ve also included a non-microbiome pick discussing how to spot and resolve common statistical mistakes in research manuscripts. The authors of the article hope this will help improve robustness of scientific research. Happy reading!

Gut Microbiome
A high-resolution transcriptome map identifies small RNA regulation of metabolism in the gut microbe Bacteroides thetaiotaomicron. Ryan, D. et al. Nature Communications.

Depicting SARS-CoV-2 faecal viral activity in association with gut microbiota composition in patients with COVID-19. Zuo, T. et al. Gut.

High microbiota reactivity of adult human intestinal IgA requires somatic mutations. Kabbert, J. et al. Journal of Experimental Medicine.

A unified catalog of 204,938 reference genomes from the human gut microbiome. Almeida, A. et al. Nature Biotechnology.

Airway Microbiome
Epigenetic landscape links upper airway microbiota in infancy with allergic rhinitis at 6 years of age. Morin, A. et al. Journal of Allergy and Clinical Immunology.

Early-Life Microbiome
Butyrate producing colonic Clostridiales metabolise human milk oligosaccharides and cross feed on mucin via conserved pathways. Pichler, M.J. et al. Nature Communications.

Animal Experiments
Bile acids drive the newborn’s gut microbiota maturation. van Best, N. et al. Nature Communications.

Gut microbiota composition modulates inflammation and structure of the vagal afferent pathway. Kim, J.S. et al. Physiology & Behavior.

TNFα regulates intestinal organoids from mice with both defined and conventional microbiota. Sun, L. et al. International Journal of Biological Macromolecules.

Water Microbiome
Nutrient and microbial water quality of the upper Ganga River, India: identification of pollution sources. Bowed, M.J. et al. Environmental Monitoring and Assessment.

Plant, Root, and Soil Microbiome
Global warming shifts the composition of the abundant bacterial phyllosphere microbiota as indicated by a cultivation-dependent and -independent study of the grassland phyllosphere of a long-term warming field experiment. Aydogan, E.L. FEMS Microbiology and Ecology.

Non-Microbiome Pick
Science Forum: Ten common statistical mistakes to watch out for when writing or reviewing a manuscript. Makin, T.R. and Orban de Xivry, JJ. eLife.

July 24, 2020

Good afternoon all!

Today’s digest is a bit on the lighter side, nevertheless, there are some great papers to sink your teeth into.

Those with an interest in tropical diseases will want to read an investigation into the three-way relationship between humans, their microbiotas and the protozoan cause of Chagas disease.

History buffs, and fans of the epic novel ‘Romance of the Three Kingdoms’ may be interested by an analysis of the soil microbiome of the Jinsha relic, which is found at the site of the former Chinese Shu state capital.

For those more philosophically inclined, there is an interesting discussion on the impact of human space activity on the search for extra-terrestrial life. So that’s ancient history and space-age wizardry all covered in today’s rather modest digest. What more could you want?!

COVID-19

Preprint: Rapid in vitro assays for screening neutralizing antibodies and antivirals against SARS-CoV-2 – Oark et al.

Preprint: The D614G mutation in the SARS-CoV2 Spike protein increases infectivity in an ACE2 receptor dependent manner – Ogawa et al.

Preprint: Escape from neutralizing antibodies by SARS-CoV-2 spike protein variants – Weisblum et al.

General microbiome

Mapping of host-parasite-microbiome interactions reveals metabolic determinants of tropism and tolerance in Chagas disease – Hossain et al.Science Advances

Animal experiments

Host immunity and the colon microbiota of mice infected with Citrobacter rodentium are beneficially modulated by lipid-soluble extract from late-cutting alfalfa in the early stages of infection – Fries-Craft et al.PLOS One

Plant, root, and soil microbiome

Diversity and structure of soil microbiota of the Jinsha earthen relic – Yang et al.PLOS One

Quantitative detection of economically important Fusarium oxysporum f. sp. cubense strains in Africa in plants, soil and water – Matthews et al. – PLOS One

Fungi, bacteria and oomycota opportunistically isolated from the seagrass, Zostera marina – Ettinger and Eisen – PLOS One

Techniques

Majority sensing in synthetic microbial consortia – Alnahhas et al. – Nature Communications

Microbes in the news

Should we disinfect outer space?: Jenna Sutela and Sophia Roosth in conversation – Sutela and Roosth – Art in America

July 23, 2020

In today’s digest – duodenal microbiota linked to stunting in children, differential effects of germfree and antibiotic treated mouse models on social behavior, microbial metabolite receptor GPBAR and its interaction with bile acids, review article on engineering microbes to treat diseases and many more…happy reading!

General microbiome

The Microbiota-Gut-Immune-Glia (MGIG) Axis in Major Depression – Leszek Rudzki – Molecular Neurobiology

Engineering the gut microbiota to treat chronic diseases – Noura S. Dosoky – Applied Microbiology and Biotechnology

Human microbiome

Acute and chronic improvement in postprandial glucose metabolism by a diet resembling the traditional Mediterranean dietary pattern: Can SCFAs play a role? – Marilena Vitale – Clinical Nutrition

Linking the duodenal microbiota to stunting in a cohort of undernourished Bangladeshi children with enteropathy – Robert Y. Chen – New England Journal of Medicine

Enterobacterales Infection after Intestinal Dominance in Hospitalized Patients – Krishna Rao – mSphere

Differences in the gut Firmicutes to Bacteroidetes ratio across age groups in healthy Ukrainian population – Alexander Vaiserman – BMC Microbiology

Preprint- Association of gut microbiota with cerebral cortex and cerebrovascular abnormality in human mild traumatic brain injury – Lijun Bai – BioRxiv

Real-world study in infants fed an infant formula with two human milk oligosaccharides – Enriqueta Román – Nutricion Hospitalaria

Animal experiments

Gut microbiome composition differences among breeds impact feed efficiency in swine – Matteo Bergamaschi – Microbiome

Opposing effects of antibiotics and germ-free status on neuropeptide systems involved in social behaviour and pain regulation – Katerina V. A. Johnson – BMC Neuroscience

Local Necrotic Cells Trigger Systemic Immune Activation via Gut Microbiome Dysbiosis in Drosophila – Hina Kosakamoto – Cell Reports

Peanut skin extract ameliorates the symptoms of type 2 diabetes mellitus in mice by alleviating inflammation and maintaining gut microbiota homeostasis – Lan Xiang – Aging

Preprint- Community composition and development of the post-weaning piglet gut microbiome – D. Gaio – BioRxiv

Gut microbiota regulate tumor metastasis via circRNA/miRNA networks – Zhuxian Zhua – Gut Microbes

Porcine circovirus type 2 (PCV2) and Campylobacter infection induce diarrhea in piglets: Microbial dysbiosis and intestinal disorder – Gang Yang – Animal Nutrition

Plant, root and soil microbiome

Populations of the Parasitic Plant Phelipanche ramosa Influence Their Seed Microbiota – Sarah Huet – Frontiers in Plant Science

Domestication-driven changes in plant traits associated with changes in the assembly of the rhizosphere microbiota in tetraploid wheat – Aymé Spor – Scientific Reports

Water microbiome

Preprint- Time series metagenomic sampling of the Thermopyles, Greece, geothermal springs reveals stable microbial communities dominated by novel sulfur-oxidizing chemoautotrophs – A. Meziti – BioRxiv

Preprint- Evaluation of the microbial community structure of potable water samples from occupied and unoccupied buildings using16S rRNA amplicon sequencing – Kimothy L. Smith – BioRxiv

Phages and Viruses

Preprint- Targeting of Mammalian Glycans Enhances Phage Predation in the Gastrointestinal Tract – Sabrina I. Green – BioRxiv

Techniques
Structural basis of GPBAR activation and bile acid recognition – Fan Yang – Nature

Microbes in News

Machine learning analysis reveals less diverse microbiome in children with type 1 diabetes – Healio

July 22, 2020

Human microbiome

The Urinary Tract Microbiome in Older Women Exhibits Host Genetic and Environmental Influences – Adebayo et al. – Cell Host & Microbe

The vaginal microbiome as a predictor for outcome of in vitro fertilization with or without intracytoplasmic sperm injection: a prospective study – Koedooder et al. – Human reproduction

Comparison of Meconium Microbiome in Dizygotic and Monozygotic Twins Born by Caesarean Section (CS) – Yang et al. – Frontiers in Microbiology

Gut microbiome

Autoreactivity in naïve human fetal B cells is associated with commensal bacteria recognition – Chen et al. – Science

Prenatal stress increases IgA coating of offspring microbiota and exacerbates necrotizing enterocolitis-like injury in a sex-dependent manner – Brawner et al. – Brain, Behavior, and Immunity

General microbiome

* Acquisition and Adaptation of Ultra-small Parasitic Reduced Genome Bacteria to Mammalian Hosts – McLean et al. – Cell Reports

July 21, 2020

Hello! We are in the midst of an unprecedented heat wave here in Western New York and I hope everyone is enjoying summer in the northern hemisphere. In todays post there is an interesting article by Kyung-Eon Lee, et al on the extracellular vesicle of a gut microbe Paenalcaligenes hominis as a risk factor for vagus nerve-mediated cognitive impairment. There also is a preprint on parthenogenesis in weevils as a possible Wolbachia-density dependent trait to ponder as well as a look at the experimental approaches to investigating the vaginal biofilm microbiome. Enjoy!

COVID-19

Preprint: ACE2-independent interaction of SARS-CoV-2 spike protein to human epithelial cells can be inhibited by unfractionated heparin. Lynda J Partridge, et al. bioRxiv

SARS-CoV-2 is not present in the vaginal fluid of pregnant women with COVID-19. MM Aslan, et al. – The Journal of Maternal…

GENERAL MICROBIOME

Preprint: Targeting methionine synthase in a fungal pathogen causes a metabolic imbalance that impacts cell energetics, growth and virulence. Jennifer Scott, et al. bioRxiv

HUMAN SKIN MICROBIOME

News Article: All-Natural Soap For Nourished And Balanced Microbiome Product Launched

HUMAN VAGINAL MICROBIOME

Experimental approaches to investigating the vaginal biofilm microbiome. PubMed – NIH

HUMAN GUT MICROBIOME

The extracellular vesicle of gut microbial Paenalcaligenes hominis is a risk factor for vagus nerve-mediated cognitive impairment. Kyung-Eon Lee, et al. Microbiome

Evolution of Gut Microbiome and Metabolome in Suspected Necrotizing Enterocolitis. MDPI

[PDF] Effect of a Nutritional Intervention on the Intestinal Microbiota of Vertically HIV-Infected Children: The Pediabiota Study. T Sainz,et al. – Nutrients

ANIMAL MICROBIOME

Preprint: Parthenogenesis in weevils of the tribe Naupactini (Coleoptera, Curculionidae): a Wolbachia-density dependent trait?Marcela Silvina Rodriguero, et al. bioRxiv

PLANT, ROOT AND SOIL MICROBIOME

Preprint: Humic acids enrich the plant microbiota with bacterial candidates for the suppression of pathogens. Maura SRA Silva, et al. bioRxiv

Predicting disease occurrence with high accuracy based on soil macroecological patterns of Fusarium wilt. J Yuan, et al. – The ISME Journal

ANIMAL EXPERIMENTS

The gut microbiota of brood parasite and host nestlings reared within the same environment: disentangling genetic and environmental effects. CY Lee, et al. – The ISME Journal

TECHNIQUES

Two possible candidate enzymes from Ulva lactuca-associated epiphytic bacteria obtained through PCR and functional evaluation. JS Ruiz-Toquica, et al. – Universitas Scientiarum

WATER AND EXTREMOPHILE MICROBIOME

Genomic insights into the salt tolerance and cold adaptation of Planococcus halotolerans SCU63 T. L Gan, et al. – Archives of Microbiology

PROBIOTICS / PREBIOTICS

The Benefits of Probiotic Interventions in Maternal-Fetal Health: An Appraise Review. P Dhillon, et al. – PharmaNutrition

PHAGES AND VIRUSES

[PDF] Low Host Abundance and High Temperature Determine Switching from Lytic to Lysogenic Cycles in Planktonic Microbial Communities in a Tropical Sea (Red Sea). R Abdulrahman Ashy, et al. – Viruses

July 19, 2020

Hello from the Sonoran Desert! In today’s digest, you’ll find find a lot of very interesting papers! For those interested in host-phages interactions, there is an amazing work from Ping and collaborators looking at phage infections dynamics in migrating bacterial populations. Interestingly, the authors suggests that phages may be able to “hitchhike” with moving bacteria.

To continue with our viral readings, you’ll also find an interesting perspective paper from Kuprovic and collaborators. In this piece, the authors attempt to reconstruct the virome associated to LUCA (Last Universal Cellular Ancestor). Amazingly, their reconstruction shows that a remarkably complex virome would have been associated to LUCA, suggesting an extensive viral evolution antedating LUCA!

Finally, today’s non-microbiology pick is a book, looking at the fascinating Cuatro Ciénegas Basin, located in México, a site that is often described as a real outdoor laboratory for astrobiology. Indeed, the Basin site contains gypsum-rich soil analogous to the Gale Crater in Mars, and the ponds contains extremely oligotrophic waters, which can be used to model ancient oceans chemistry. You’ll explore along the chapters the history, ecology, microbiology and evolution of this amazing site, to unravel the mysteries of this site absolutely unique on the planet.

Have a great Sunday!


Human respiratory microbiome

Review: Insights gained into respiratory infection pathogenesis using lung tissue metabolomics –  Bernatchez and McCall –  PLOS Pathogens

Human gut microbiome

Description and determinants of the faecal resistome and microbiome of farmers and slaughterhouse workers: A metagenome-wide cross-sectional study –  Van Gompel et al. –  Environment International

Review: The influence of the gut microbiome on obesity –  Blanco – Journal of the American Association of Nurse Practitioners


Animal microbiome (for animals in the wild)

Comparative analysis of the gut microbiota of Apis cerana in Yunnan using high-throughput sequencing. –  Luo et al. –  Archives of Microbiology

Plant, root, and soil microbiome

Higher tree diversity increases soil microbial resistance to drought. –  Gillespie et al. –  Communications Biology

Effect of land uses on soil microbial community structures among different soil depths in northeastern China. –  Ji et al. –  European Journal of soil Biology

Structural variability and niche differentiation of the rhizosphere and endosphere fungal microbiome of Casuarina equisetifolia at different ages. –  Huang et al. –  Environmental Microbiology

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

Substrate regulation leads to differential responses of microbial ammonia-oxidizing communities to ocean warming. –  Zheng et al. –  Nature communications

Diversity and dynamics of relevant nanoplanktonic diatoms in the Western English Channel. –  Arsenieff et al.  –  The ISME Journal

Lake characteristics influence how methanogens in littoral sediments respond to terrestrial litter inputs. –  Yakimovich et al. –  The ISME Journal

Built environment (subways, indoor surfaces)

Heavy metal concentrations in Brazilian port areas and their relationships with microorganisms: can pollution in these areas change the microbial community? –  Del Busso Zampieri et al. –  Environmental Monitoring and Assessment

Food microbiology

Material conversion, microbial community composition and metabolic functional succession during green soybean hull composting. –  Zhang et al. –  Bioresource Technology


Phages and viruses

Hitchhiking, collapse, and contingency in phage infections of migrating bacterial populations. –  Ping et al. – The ISME Journal

Review: The LUCA and its complex virome. –  Krupovic et al. –  Nature Review Microbiology

Insights into the dynamics between viruses and their hosts in a hot spring microbial mat. –  Jarett et al. –  ISME Journal

Bioinformatics

IDMIL: an alignment-free Interpretable Deep Multiple Instance Learning (MIL) for predicting disease from whole-metagenomic data. –  Rahman and Rangwala –  Bioinformatics


My non-microbiology pick

Book: Astrobiology and Cuatro Ciénegas Basin as an Analog of Early Earth. –  Medina-Chávez et al. –  Cuatro Ciénegas Basin: An Endangered Hyperdiverse Oasis. Springer

July 18, 2020

Have a nice weekend! Today, in this Digest: microbiome in psoriasis, cancer and a set of papers about vaginal microbiome.  

Human and General Microbiome

The cutaneous and intestinal microbiome in psoriatic disease – Stephanie T. Lea – Clinical Immunology

Microbiome-induced antigen presenting cell recruitment coordinates skin and lung allergic inflammation – Niki D. Ubags – Journal of Allergy and Clinical Immunology

Butyrate, but not Propionate, Reverses Maternal Diet-Induced Neurocognitive Deficits in Offspring – Linchao Yu – Pharmacological Research

Host Genotype and Colonist Arrival Order Jointly Govern Plant Microbiome Composition and Function – Devin R. Leopold – Current Biology

Characterization of gut contractility and microbiota in patients with severe chronic constipation – Dina R. Yarullina – PLoS ONE

A high-resolution transcriptome map identifies small RNA regulation of metabolism in the gut microbe Bacteroides thetaiotaomicron – Daniel Ryan – Nature Communications 

Bacteria pathogens drive host colonic epithelial cell promoter hypermethylation of tumor suppressor genes in colorectal cancer – Xiaoxuan Xia – Microbiome

Vaginal microbiome analysis of healthy women during different periods of gestation – Dan Li – Bioscience Reports

The Gut Microbiome as a Component of the Gut-Brain Axis in Cognitive Health – Wen Gao – Biological Research For Nursing 

The Effect of Gut Microbiome on Carcinogenic DNA Damage – Yun-Chung Hsiao – Chemical Research in Toxicology

The effect of curative resection on fecal microbiota in patients with colorectal cancer: a prospective pilot study – Sung Sil Park – Annals of Surgical Treatment and Research

Tumor microbial diversity and compositional differences among women in Botswana with high-grade cervical dysplasia and cervical cancer – Travis T Sims – International Journal of Gynecological Cancer

Gut microbial composition changes in bladder cancer patients: A case-control study in Harbin, China – Canxia He –  Asia Pacific Journal of Clinical Nutrition

Beneficial Microbes, Interventions, and Compounds

A 4-strain Probiotic Supplement Influences Gut Microbiota Composition and Gut Wall Function in Patients with Ulcerative Colitis – Jonas Ghyselinck – International Journal of Pharmaceutics

Systematic Review: Probiotics for induction of remission in Crohn’s disease – Berkeley N Limketkai – Cochrane Systematic Review

Human milk and mucosa-associated disaccharides impact on cultured infant fecal microbiota – Antonio Rubio-del-Campo – Scientific Reports 

YYFZBJS ameliorates colorectal cancer progression in ApcMin/+ mice by remodeling gut microbiota and inhibiting regulatory T-cell generation – Hua Sui – Cell Communication and Signaling 

Challenges of Screening Prospective Stool Donors for Fecal Microbiota Transplantation – Nancy E. Dubois – Biological Research For Nursing

Effects of banana powder (Musa acuminata Colla) on the composition of human fecal microbiota and metabolic output using in vitro fermentation – Dan‐Dan Tian – Journal of Food Science

COVID-19 Papers

ACE2 and TMPRSS2 expression by clinical, HLA, immune, and microbial correlates across 34 human cancers and matched normal tissues: implications for SARS-CoV-2 COVID-19 – Riyue Bao – Journal of ImmunoTheraphy of Cancer