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Micrococcus luteus

Safranin-stained Micrococcus luteus showing sarcinae and other arrangements. (approx. 1000 X). Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

TWiM #32: Not the shadow biosphere



Hosts: Vincent Racaniello, Read More

TWiP 40: Doctor, there's a worm in my eye!



Hosts: Vincent Racaniello and Dickson Despommier


Vincent and Dickson discuss loaiasis caus... Read More

Microbiology art gallery for engaging large classes

By adding some art to his “Fundamentals of Microbiology” science course at the University of Waterloo, Biology professor Josh Neufeld has found a way to engage his students with the topic in a fun and creative way.

BIOL 140, explains Neufeld, is a large introductory course divided across thre... Read More

TWiM #31: Screen door on a submarine



Hosts: Vincent Racaniello, Jo Handelsman Read More

TWiV 186 Letters

Kurt writes:


Dear Vincent,


Sorry I missed your visit to NU- my teaching duties in Evanston prevented it!


Several of my students attended both and had good reports all around. Your work on ISGs sounds like it is coming along well.


I just today l... Read More

Serratia marcescens colonies

Pigmented and non-pigmented parts of Serratia marcescens colonies. Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

Blood Agar Plate

The results after incubation of a blood agar plate exposed to a laboratory environment for approximately 2 hrs. Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

BacterioFiles Micro Edition 87 - Fermenter Fixes Folate Faults

This episode: Probiotics could help prevent folate deficiency!





Download Ep... Read More

Clostridium difficile

A colour-enhanced scanning electron micrograph image showing a cluster of Clostridium difficile on a surface. Clostridium difficile is a species of Gram-positive bacteria that causes severe diarrhea and other intestinal disease when competing bacteria in the gut flora have been wiped out by anti... Read More

Bacteria Friend and Foe (archived educational film)

A classic film archived by CreativeCommonsTV about the benefits and dangers of microbes. Read More

TWiV 161 Letters

Ayesha writes:


Honourable TWIVnesses!


I heard this series and thought you might dig it for listener pick of the week: h... Read More

TWiV 185: Dead parrots and live Wildcats



Hosts: Vincent Racaniello, Sarah Connolly, Andrew Karaba, Read More

Gut bacteria ‘biome’ differs in obese people

For the first time, the vast array of bacteria in the human gut has been studied as a complex, integrated biological system, rather than a set of separate species.

The new approach, which reveals patterns that correspond with body weight, treats the human microbiome as a cohesive “supra-organ... Read More

The Latest News from the Human Microbiome Project

The NIH Human Microbiome Project has been a 5-year endeavor to produce community resources to support the field of human microbiome research. Although the HMP has already produced hundreds of peer-reviewed publications, in the past week 2 major HMP Consortium papers as well as 20+ companion pap... Read More

Circular, opaque colonies

Circular, opaque colonies on the surface of a nutrient agar plate. Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

The Black Queen Hypothesis: how microbes lose a necessary function and survive to tell the tale

Pared down genomes are the norm in symbiotic microbes, but how do non-symbionts get away with cutting out functions it would appear that they need? The authors of an Opinion piece in mBio this week explain their ideas about the matter. They say microbes that shed necessary functions may well be ... Read More

Chronic Fatigue Syndrome and the CDC: A Long, Tangled Tale

David Tuller, health journalist and Berkeley faculty member, has written a piece on the CDC's handling of CFS. His account draws from interviews, a close reading of a fraction of the 4608 epidemiologic studies that pop up on a PubMed search for “chronic fatigue syndrome,” and a review of many pa... Read More

Bacteria's slimy biofilm could help humans

Bacteria and other microbes love living in slimy communities that cling to riverbed rocks and swimming pool walls, contaminate factory equipment and medical implants, and sometimes coat the teeth as plaque. When such microbe gatherings stick to a hard surface, they’re called biofilms. They're al... Read More

Flesh Eating Bacteria Makes Super Molecular Glue

The same bacteria that eats flesh can make a super glue used to bind molecules.

Dr. Mark Howarth, with his graduate student Bijan Zakeri in Oxford University's department of biochemistry, developed an adhesive that sticks molecules together, nearly inseparably.

They used the bacteria Strep... Read More
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