Microbiome Digest, October 23, 2014

Not much microbiome news today – which was good because I got time to watch the solar eclipse and a huge solar storm at the same time.  Enjoy the read!

Animal models of microbiome research

Lyn Deficiency Leads to Increased Microbiota-Dependent Intestinal Inflammation and Susceptibility to Enteric Pathogens – Morgan E. Roberts – Journal of Immunology

“Lyn2/2 mice exhibited profound cecal inflammation, bacterial dissemination, and morbidity following S. Typhimurium challenge and greater colonic inflammation throughout the course of C. rodentium infection.”

Rock microbiome

* Halophilic Archaea Cultivated from Surface Sterilized Middle-Late Eocene Rock Salt Are Polyploid – Salla T. Jaakkola – PLOS ONE

“We used real-time PCR to show that our isolates are polyploid, with genome copy numbers of 11–14 genomes per cell in exponential growth phase.”

More Microbiology

Zooming in to see the bigger picture: Microfluidic and nanofabrication tools to study bacteria – Felix J. H. Hol, Cees Dekker – Science

“Here, we review the new scientific insights gained by using a diverse set of nanofabrication and microfluidic techniques to study individual bacteria and multispecies communities.”

Review: Theory and Empiricism in Virulence Evolution – James J. Bull, Adam S. Lauring – PLOS Pathogens

“Our purpose here is to offer a brief introduction to virulence theory, explain some of its strengths and weaknesses, and suggest how theory might be united with empiric data”


Comparing the new 16S rRNA V4 and ITS primers to the old primers-RESULTS! – Embriette Hyde – MicroBEnet

“The Knight lab has been working hard testing new primers for 16S rRNA amplicon production and its time to share our progress.”

Microbes in the News

As permafrost soils thaw, soil microbes amplify global climate change – Science Daily

“Now, research by an international team of scientists from the U.S., Sweden and Australia, led by University of Arizona scientists, shows that a single species of microbe, discovered only very recently, is an unexpected key player in climate change.”

* The Scientist: Prof. Esther Angert Studies Extreme Bacteria – Siddesh Ramesh – Cornell Sun

“While the majority of bacteria cannot be seen without a microscope, there exists a group of bacterial species that is visible to the naked eye. Known as Epulopiscium, they are “an extreme on the spectrum of diversity of bacterial life in existence,” according to Prof. Esther Angert, microbiology.”

Bik’s Picks

Flare Alert: Monster Sunspot Turns Toward Earth – Ian O’Neill – Discovery

“Amateur astronomers have been wowed by a vast sunspot that has rotated to face Earth, the largest since this solar cycle began in 2008, and solar observatories (on the ground and orbiting Earth) are closely monitoring the region.“

Watch cell division with new, remarkable resolution: Nobel winner Betzig strikes again – Tech Times

“Just weeks after sharing the Nobel Prize in chemistry for his work involving high-resolution microscopes, a U.S. researcher has again stunned the scientific world with a new technique that peers deeply into living cells.

Ancient Europeans do not drink milk according to new study – BetaWired

“Almost everyone drinks milk today but a new study shows that ancient Europeans were not milk lovers back in the old days. According to a DNA analysis result, ancient Europeans are lactose intolerant.”