May 3, 2016

Counting the microbial species on Earth, goat rumen microbiome development, red kangaroos who died a tragic death, fungi in burgundy vineyards, Archaea in  Yellowstone, and image irregularities at a Pfizer lab in La Jolla.

Jobs and Events

Postdoctoral Fellowship Opportunity: Microbiology of the Built Environment – Sloan Foundation

Bioinformatics for the Microbiome, May 27 – Stanford Center for Genomics and Personalized Medicine, $49

General microbiology

Scaling laws predict global microbial diversity: Earth is home to as many as 1 trillion (10exp12) microbial species – Kenneth J. Locey – PNAS

Pregnancy and birth

Impact of Prematurity and Perinatal Antibiotics on the Developing Intestinal Microbiota: A Functional Inference Study – Silvia Arboleya – MDPI International Journal of Molecular Sciences

Review: Young microbes for adult obesity – M. Serino – Pediatric Obesity

Review: Microbial therapeutic interventions – Nicole G. Grady – Seminars in Fetal and Neonatal Medicine

Human oral microbiome

Microbiome of Deep Dentinal Caries Lesions in Teeth with Symptomatic Irreversible Pulpitis – Isabela N. Rôças – PLOS ONE

Human respiratory tract microbiome

Nasopharyngeal Microbiota, Host Transcriptome and Disease Severity in Children with Respiratory Syncytial Virus Infection – Wouter A.A. de Steenhuijsen Piters – Am J Respir Crit Care Med.

Human reproductive tract microbiome

Detection of DNA viruses in prostate cancer – Vitaly Smelov – Scientific Reports

Human gut microbiome

Effect of probiotic yoghurt on animal-based diet-induced change in gut microbiota: an open, randomised, parallel-group study – T. Odamaki – Beneficial Microbes

Fecal microbiota transplant for Clostridium difficile infection in older adults – William M. Tauxe – Therapeutic Advances in Gastroenterology

Review: Fine-tuning of the mucosal barrier and metabolic systems using the diet-microbial metabolite axis – Motoyoshi Nagai – International Immunopharmacology

Review: Gut Microbiome in CKD: challenges and opportunities – Anitha Nallu – Translational Research

Editorial: Transplanting a Microbial Organ: the Good, the Bad, and the Unknown – Dionysios A. Antonopoulos – mBio

Animal models
A polyphenol-rich fraction obtained from table grapes decreases adiposity, insulin resistance and markers of inflammation and impacts gut microbiota in high-fat-fed mice – Brian Collins – The Journal of Nutritional Biochemistry

Diet-induced obesity, energy metabolism and gut microbiota in C57BL/6J mice fed Western diets based on lean seafood or lean meat mixtures – Jacob Bak Holm – The Journal of Nutritional Biochemistry

Colonic Inflammation Accompanies An Increase of β-Catenin Signaling and Lachnospiraceae/Streptococcaceae in the Hind Gut of High-Fat Diet-Fed Mice – Huawei Zeng – The FASEB Journal

Gut commensal Bacteroides acidifaciens prevents obesity and improves insulin sensitivity in mice – J-Y Yang – Mucosal Immunology

Composition and Predicted Metabolic Capacity of Upper and Lower Airway Microbiota of Healthy Dogs in Relation to the Fecal Microbiota – Aaron C. Ericsson – PLOS ONE

Cultivation and qPCR Detection of Pathogenic and Antibiotic-Resistant Bacterial Establishment in Naive Broiler Houses – J. P. Brooks – Journal of Environmental Quality

Exploring the Goat Rumen Microbiome from Seven Days to Two Years – Lizhi Wang – PLOS ONE

Bacteriocin from epidemic Listeria strains alters the host intestinal microbiota to favor infection – Juan J. Quereda – PNAS

Animal microbiome

Spatial dynamics of the bacterial community structure in the gastrointestinal tract of red kangaroo (Macropus rufus) – Meirong Li – World Journal of Microbiology and Biotechnology

Assessment of Bacterial Communities in Thirteen Species of Laboratory-Cultured Domestic Mites (Acari: Acaridida) – Jan Hubert – Journal of Economic Entomology

Bacterial community in Haemaphysalis ticks of domesticated animals from the Orang Asli communities in Malaysia – Jing-Jing Khoo – Ticks and Tick-borne Diseases

Metabolomics of reef benthic interactions reveals a bioactive lipid involved in coral defence – Robert A. Quinn – Proceedings of the Royal Society B

Taxonomic and functional diversity of the culturable microbiomes of epigeic earthworms and their prospects in agriculture – Arjun Singh – Journal of Basic Microbiology

Methanogen Diversity in Indigenous and Introduced Ruminant Species on the Tibetan Plateau – Xiao Dan Huang – Archaea

Horse Species Symposium abstracts: Journal of Animal Science
Recent advances in the microbiome and physiology of the hindgut of the horse and dog – F. Camargo
Canine intestinal microbiology and metagenomics: From phylogeny to function – B. C. Guard – Journal of Animal Science
The microbiome of the horse hindgut: History and current knowledge – V. Julliand

Plant, root, and soil microbiome

Bacterial diversity and composition in major fresh produce growing soils affected by physiochemical properties and geographic locations – Jincai Ma – Science of the Total Environment

Microbial diversity limits soil heterotrophic respiration and mitigates the respiration response to moisture increase – Fen-Guo Zhang – Soil Biology and Biochemistry

Total and active microbial communities and phoD as affected by phosphate depletion and pH in soil – Sabine A. Ragot – Plant and Soil

Genetically modified WYMV-resistant wheat exerts little influence on rhizosphere microbial communities – Zhenhua Zhang – Applied Soil Ecology

Loss of testate amoeba functional diversity with increasing frost intensity across a continental gradient reduces microbial activity in peatlands – Vincent E.J. Jassey – European Journal of Protistology

Regional-scale analysis of arbuscular mycorrhizal fungi: the case of burgundy vineyards – Marie-Lara Bouffaud – Oeno One

Review: Role of Plant Growth Promoting Rhizobacteria in Agricultural Sustainability—A Review – Pravin Vejan – MDPI Molecules

Chapter: Mycorrhizas in Agroecosystems – Marcela C. Pagano – Recent Advances on Mycorrhizal Fungi

Water and extremophile microbiome

Next-Generation Sequencing Assessment of Eukaryotic Diversity in Oil Sands Tailings Ponds Sediments and Surface Water – Maria Aguilar – The Journal of Eukaryotic Microbiology

Drift in ocean currents impacts intergenerational microbial exposure to temperature – Martina A. Doblin – PNAS

Low Genome Content Diversity of Marine Planktonic Thaumarchaeota – Haiwei Luo – Environmental Microbiology Reports

The distribution, diversity and function of predominant Thermoproteales in high-temperature environments of Yellowstone National Park – Zackary J. Jay – Environmental Microbiology

Multidrug resistance phenotypes are widespread over different bacterial taxonomic groups thriving in surface water – Carlos Narciso-da-Rocha – Science of the Total Environment

A 150-year record of phytoplankton 1 community succession controlled by hydroclimatic variability in a tropical lake – Kweku Afrifa Yamoah – Biogeosciences

Review: Hydrothermal Vents and Methane Seeps: Rethinking the Sphere of Influence – Lisa A. Levin – Frontiers in Marine Science

ReviewMicrobial associations with macrobiota in coastal ecosystems: patterns and implications for nitrogen cycling – Orissa M Moulton – Frontiers in Ecology and the Environment

Book: Biotechnology of Extremophile – Springer

Waste and pollution microbiology

Revealing colonisation and biofilm formation of an adherent coal seam associated microbial community on a coal surface – Silas H.W. Vick – International Journal of Coal Geology

Enhanced Degradation of Diesel in the Rhizosphere of Lupinus luteus after Inoculation with Diesel-Degrading and Plant Growth-Promoting Bacterial Strains – María Balseiro-Romero – Journal of Environmental Quality

Built environment microbiology

Urban Microbiomes and Urban Agriculture: What Are the Connections and Why Should We Care? – Gary M. King – Sowing Seeds in the City

Bioinformatics, transcriptomics, metagenomics

rnaQUAST: a quality assessment tool for de novo transcriptome assemblies – Elena Bushmanova – Bioinformatics

Feature: Microbiology: the road to strain-level identification – Vivien Marx – Nature Methods

Protocol BookData Mining Techniques for the Life Sciences – Springer
Bacterial Genomic Data Analysis in the Next-Generation Sequencing Era – Massimiliano Orsini
Update on Genomic Databases and Resources at the National Center for Biotechnology Information – Tatiana Tatusova
Big Data, Evolution, and Metagenomes: Predicting Disease from Gut Microbiota Codon Usage Profiles – Maja Fabijanić

More microbiology

Riches of phenotype computationally extracted from microbial colonies – Tzu-Yu Liu – PNAS

Microbes in the news

UB’s microbiome hunters. These are exciting times at UB as its work on the human genome and microbiome matures. – Research Foundation for The State University of New York

Video: How Your City Has Its Own Unique Microbiome – Discovery News – YouTube

Wrapping up multiple sclerosis at UCSF – Claire Conway – UC San Francisco

Stalking Cave Bacteria to Make Secret Weapons Against Superbugs: Dr. Naowarat Cheeptham – Sam Grobart – Bloomberg

Seres Therapeutics Announces Achievement of Target Enrollment of SER-109 Phase 2 Study for the Prevention of Recurrent Clostridium difficile Infection – Business Wire

Bacteria use traffic-cop-like mechanism to infect gutWSU scientists discover mechanism critical to pathogens’ success – EurekAlert

Tesla’s Bioweapon Defense Mode can protect you from bacteria, and reduce pollution
Cars. Tesla’s AC unit is available on the Model X and the new Model S – Alphr

Bacteria Hysteria

This odor-fighting, bacteria-killing underwear is made with pure silver – Christian de Looper – Yahoo Digital Trends
Millions of people are drinking mold and bacteria with their coffee. This is how to avoid it! – David Wolfe

Science, publishing and career

Image integrity concerns in papers from a Pfizer lab – Leonid Schneider – For Better Science

April 25, 2016, back in Cali

Arrived back at SFO, and enough material for another digest. Longitudinal assessment of sputum microbiome, patient perspectives on FMT,  blue whale feces, and decontamination of amplicon datasets.

Events

Microbiome & Mice 2016, Advancing Microbiome Research Symposium – April 26, New York

Human oral microbiome

Longitudinal assessment of sputum microbiome by sequencing of the 16S rRNA gene in non-CF bronchiectasis patients – Michael J Cox – bioRxiv preprint

The gut and oral microbiome in HIV disease: a workshop report – DL Moyes – Oral Diseases

Modulation of the orodigestive tract microbiome in HIV-infected patients – D Saxena – Oral Diseases

Human vaginal microbiome

Molecular assessment of bacterial vaginosis by Lactobacillus abundance and species diversity – Joke A. M. Dols – BMC Infectious Diseases

Human gut microbiome

Patient Perspectives on Fecal Microbiota Transplantation for Clostridium Difficile Infection – Caroline Zellmer – Infectious Diseases and Therapy

Animal models

Effects of a diet high in resistant starch on fermentation end-products of protein and mucin secretion in the colons of pigs – Liping Zhou – Starch

Extensive Mobilome-Driven Genome Diversification in Mouse Gut-Associated Bacteroides vulgatus mpk – Anna Lange – Genome Biology and Evolution

Animal microbiome

Analysis of the microbial diversity in faecal material of the endangered blue whale, Balaenoptera musculus – Olivia Guass – Antonie van Leeuwenhoek

Water microbiome

Effects of land use on the structure and function of leaf-litter microbial communities in boreal streams – Caroline E. Emilson – Freshwater Biology

Biological responses to environmental heterogeneity under future ocean conditions – Philip W. Boyd – Global Change Biology

Techniques

Decontamination of 16S rRNA gene amplicon sequence datasets based on bacterial load assessment by qPCR – Vladimir Lazarevic – BMC Microbiology

Microbes in the news

“Amazing. If I ever want to know what city I’m in, all I need is a microscope!” Study: Cities Have Unique ‘Bacterial Fingerprints’ – American Voices – The Onion
Cities Are Microbial Wastelands Built On Dead Skin – Laurie Winkless – Forbes

How researchers teach bacteria new behaviors – Science Daily

A Very Precious Free Gift For a Newborn Baby – Toni Harman – Huffington Post

Have exploding cells blown up MV dogma? – Naomi Attar – Nature Reviews Microbiology

Science, publishing and career

BMJ editor Fiona Godlee takes on corruption in science – CBC News

Our image duplication project on bioRxiv

As some of you already know, I have been working on a side-project on scientific misconduct, together with Arturo Casadevall ( Johns Hopkins) and Ferric Fang ( University of Washington). In this project, we screened over 20,000 papers that had been published in 40 different journals for cases of inappropriate image duplication, focusing on photographic images such as Western blots, gels, microscopy/histology, and FACS plots. It took me 2 years of almost all my free time to screen the papers and make reports on the 1 in every 25 papers that showed duplicated images or parts of images.

After sending our manuscript to 3 different journals and receiving 3 rejection letters, we wanted to share our results with a wider (and hopefully more positive) audience. So earlier this week, we posted our manuscript on the preprint server bioRxiv (a very easy and free process!). We have also submitted our ms to journal #4. After all, the fouth time’s a charm, right?

Here is the abstract and link to our preprint (not peer-reviewed). You can leave comments at the bottom.

The Prevalence of Inappropriate Image Duplication in Biomedical Research Publications – Elisabeth M. Bik, Arturo Casadevall, Ferric C. Fang – Preprint on bioRxiv

Inaccurate data in scientific papers can result from honest error or intentional falsification. This study attempted to determine the percentage of published papers containing inappropriate image duplication, a specific type of inaccurate data. The images from a total of 20,621 papers in 40 scientific journals from 1995-2014 were visually screened. Overall, 3.8% of published papers contained problematic figures, with at least half exhibiting features suggestive of deliberate manipulation. The prevalence of papers with problematic images rose markedly during the past decade. Additional papers written by authors of papers with problematic images had an increased likelihood of containing problematic images as well. As this analysis focused only on one type of data, it is likely that the actual prevalence of inaccurate data in the published literature is higher. The marked variation in the frequency of problematic images among journals suggest that journal practices, such as pre-publication image screening, influence the quality of the scientific literature.

Retraction Watch coverage

So far, our manuscript has been featured by a couple of news and science sites. Cat Ferguson of Retraction Watch was the first to cover our study in an article called “One in 25 papers contains inappropriately duplicated images, screen finds“. Cat writes:

Bik’s procedure to find these kinds of duplications is disarmingly simple. She pulls up all the figures in a paper and scans them. It only takes her about a minute to check all the images in a PLoS ONE paper, a little longer for a paper with more complicated figures. In some cases, Bik adjusted the contrast on the image to better spot manipulations.

Some other news sites that covered the study:

Problematic images found in 4% of biomedical papers. Giant survey suggests journals should pay more attention to detecting inappropriate duplications – Monya Baker – Nature News

Many Duplicates Unearthed – GenomeWeb

Repeat Offenders: Scanning the literature, scientists find that nearly 2 percent of papers contain duplicated and manipulated figures – Kerry Grens – The Scientist

Brain station; monkey business; duplication dilemma – Katie Moisse -Spectrum News

Peer Review Fails, Again. I don’t know if the refusal of three (3) journals to date to publish this work or that peer reviewers of the original papers missed the duplication is the sadder news about this paper. – Patrick Durusau – Another Word For It.

In German: Schummelbilder in vier Prozent aller Veröffentlichungen – Lars Fischer- Spektrum

In Dutch: Veel geknoei met foto’s – Wetenschapsfraude –  Dezelfde foto met een ander bijschrift, is dat een slordigheidje of bewuste misleiding? Het blijkt regelmatig voor te komen – Sander Voormolen – NRC

In Russian: 4% биомедицинских статей содержат некорректные иллюстрации – Scientific Russia