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BacterioFiles 214 - Cable-Chlorophyte Coop Conducts Current

This episode: Cable bacteria and algae set up electric grid in sediments!


(6 MB, 6.5 minutes)


Show notes: 
Journal Paper


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Smartphone adapted for use as a video microscope to detect parasites in blood in under resourced communities

This is a good news story all around. UC Berkeley engineers, Michael D'Amrosio and Matthew Bakalar (UC Berkeley Bioengineering) with medical personal from NIAID, Dr. Thomas Nutaman and his collaborators from Cameroon and France collectively took the omni-present global resource, a standard smar... Read More

Breakthrough antibacterial approach could resolve serious skin infections

Like a protective tent over a colony of harmful bacteria, biofilms make the treatment of skin infections especially difficult. Microorganisms protected in a biofilm pose a significant health risk due to their antibiotic resistance and recalcitrance to treatment, and biofilm-protected bacteria ac... Read More

TWiV 321: aTRIP and a pause

Paul Duprex joins the TWiV team to discuss the current moratorium on viral research to alter transmission, range and resistance, infectivity and immunity, and pathogenesis.


Hosts: Vincent Racaniel... Read More

Scientists discover bacteria that survives solely by eating electricity

Researchers at Harvard and Yale have used some extreme gene-manipulation tools to engineer safety features into designer organisms.

This work goes far beyond traditional genetic engineering, which involves moving a gene from one organism to another. In this case, they're actually rewriting th... Read More

Antibiotic Producing Fungal Colony

This fungal colony, in association with a few others, was grown on SDA and appears to be an antibiotic producer. The compounds that it's producing appear orange and red. The colony grew and began producing compounds on the agar after five days incubation at 30 degree Celsius. This plate is part ... Read More

TWiP 82 letters


Allan writes:


Dear Vincent, Dickson and Daniel,


I like your idea of a TWIP coffee mug prize (or maybe a mug discount).


In this second case study you presented, the present symptoms are pretty vague, but his history is interesting. Also since with ... Read More

Streptomyces albus

Streptomycetes are a member actinomycete family. Streptomycetes are usually found in soil and are important decomposers. They are aerobic, gram-positive, filamentous rods that create branching hyphae. They also produce more than half of the world's antibiotics, and are therefore very valuable in... Read More

Cigarette smoke makes superbugs more aggressive

Methicillin-resistant Staphylococcus aureus (MRSA), an antibiotic-resistant superbug, can cause life-threatening skin, bloodstream and surgical site infections or pneumonia. Researchers at the University of California, San Diego School of Medicine now report that cigarette smoke may make matters... Read More

Improved survival of HIV patients facilitates heart disease research

WASHINGTON (July 27, 2015) - The improved survival rate of HIV patients in sub-Saharan Africa due to effective treatment programs is increasing the ability of researchers in Africa to study the impacts of cardiovascular disease in HIV patients, according to a guest editor page published today in... Read More

TWiV 309: Ebola email

The TWiVocytes answer questions about Ebola virus, including mode of transmission, quarantine, incubation period, immunity, and much more.


 Hosts: Vincent Racaniello Read More

Swarming Motility/ Proteus mirabilis

A sample of Proteus mirabilis was inoculated on to a TSA plate by taking a sterile swab and placing a drop in the center of the plate. The plate was then incubated at 37 degrees for 8 hrs. Swarming motility can be seen as a clear halo and finger like projections coming from and around the grow... Read More

TWiM 100 Letters

Matt Daugherty writes:


I just listened to the latest TWiM. Thanks for covering our horizontal gene transfer paper! It was great to hear you all talk about it and give your thoughts.


With regards to the selective pressure for retention of the Dae’s in genomes o... Read More

TWiM 104 Letters

Mark writes:


Hello TWiM-aggregate,


Its warm and sunny Spring weather here in California’s Bay Area. The fourth year
of Drought is upon us - please send water.


Speaking of water, below is a humorous incident that could be used to draw
attentio... Read More

TWiV 325: Wildcats go viral

Hosts: Vincent Racaniello


Guests: Rollie Clem and Lorena Passarelli


{audio... Read More

Agar Double Helix

Inspired by the current Agar Art Contest and the gorgeous red of a recently isolated Serratia, I thought I'd try out my first bacteria "sketch." Using Serratia, Citrobacter, and an E. coli on Hektoen Agar I whipped up this goey DNA double helix! Read More

The Ebola Outbreak: 'A Dress Rehearsal For The Next Big One'

Until this year, the world had recorded 1,640 deaths from Ebola since the virus was discovered in 1976.

Then Ebola appeared in West Africa.

So far this year, 887 people have died of Ebola in West Africa, the World Health Organization said Monday.

To put that into perspective, more than ... Read More

TWiM 93 Letters

David writes:


Why not eat locusts? Assuming you can find any fuel to cook em, and apart from deficiency illnesses, I've always wondered why people didn't hunker down and harvest them for emergency food. Did original peoples endure swarms by eating them? Did Euro food ... Read More

TWiV 332: Vanderbilt virology

Host: Vincent Racaniello


Guests: Seth BordensteinJames Crowe... Read More

Continuing Discussion on Gain of Function

Should scientific journals publish gain-of-function (GOF) studies, especially those involving pathogens with pandemic potential? While journal editors at the American Society for Microbiology have done so after careful consideration, some scientists expressed concern over that decision. A series... Read More
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