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Which is the morphology of this micro-organism?

Please help me! I am planning to identify this microorganism by API but I can not identify the shape (rod or cocci). This microorganism has positive oxidase. Its colony is red, irregular, flat.
Please teach me. Thanks so much! Nhu Thuy from Vietnam
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First Look at How Individual Staphylococcus Cells Adhere to Nanostructures Could Lead to New Ways to Thwart Infections

The bacterium Staphylococcus Aureus (S. aureus) is a common source of infections that occur after surgeries involving prosthetic joints and artificial heart valves. The grape-shaped microorganism adheres to medical equipment, and if it gets inside the body, it can cause a serious and even life-t... Read More

TWiV 267: Snow in the headlights

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Hosts: Vincent Racaniello, Alan Dove, Read More

E-coli on TSI

E-coli on TSI Read More

Secrets of the Giant, Ancient, Frozen, Killer Virus

It all started with a tiny chunk of dirt. The sample of 30,000-year-old permafrost, a frozen layer of soil from the Siberian tundra, weighed just a fraction of an ounce. But, as TIME reported on Tuesday, that scrap was carrying within it a surprise worthy of a pulp comic book: a gargantuan virus... Read More

TWiM 68 Letters

Dr. Robert Kelley writes:


Dear Twim Docs,


I just finished listening to the latest episode it Twim on the microbiote's effects on obesity. There was discussion about the use of donor feces in the treatment of human disease. I thought this might be of interest.<... Read More

Starch Agar

Starch agar contains high molecular weight starch molecules (soluable starch). When Iodine is added it reacts with starch to produces a dark brown/purple color. A zone of clearing forms around organisms that produce the exoenzyme amylase after addition of iodine. This plate was incubated for ... Read More

TWiM 66 Letters

Neva writes:
You may have seen this. Thought you all might enjoy this header illustration from
http://blogs.scientificamerican.com/artful-amoeba/2013/08/24/wonderful-things-the-hidden-beauty-of-the-horse-dung-fungus/


All your podcast are my favorites!


<... Read More

TWiV 259: Windows into the soul of a cell

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Hosts: Vincent Racaniello and Rich Condit


Guest: Read More

New Pills Deliver Bacteria, Not Drugs to Cure us

It seems that nearly every day, scientists connect another medical condition to atypical gut bacteria populations. Researchers have claimed that gut bacteria play a role not just in digestive health but even in basic brain function and mental health. Certain bacteria are so clearly good for us t... Read More

Media. Green and blue water colour and Serratia marcescens (red)

This is a joint project with water color artist Sarah Roberts to study the interaction of bacteria with traditional water colors. Many different types of bacteria have been assessed but only two so far, can be said to paint. When the white pigmented bacterium Proteus mirabilis, and the red Serra... Read More

Novel Virus Discovered in Half the World's Population

SDSU virologists and biologists have identified a highly abundant, never-before-described virus that could play a major role in obesity, diabetes.

Odds are, there’s a virus living inside your gut that has gone undetected by scientists for decades. A new study led by researchers at San Diego S... Read More

Ice Nucleation Bacteria, Twitter, and Me!

In this post from my microbiology/education blog, I discuss a post on Boing Boing recently that used a video I had made of ice nucleation bacteria. Ice nucleation bacteria are very interesting of course, and I link to the Boing Boing post. In addition, I provide an additional video of students... Read More

UA Study on Flu Evolution May Change Textbooks, History Books

A new study published in the journal Nature provides the most comprehensive analysis to date of the evolutionary relationships of influenza virus across different host species over time. In addition to dissecting how the virus evolves at different rates in different host species, the study chall... Read More

Concrete-Dissolving Bacteria Are Destroying Our Nation's Sewers

Underground in places nobody likes to look, bacteria are doing terrible things to our sewage pipes. The concrete pipes that carry our waste are literally dissolving away, forcing engineers into a messy, expensive battle against tiny microbes.

"The veins of our cities are in serious trouble, a... Read More

TWiP 64 letters

Richard writes:


Good morning, day, evening (depending on your time of day). Esteemed professors!


Firstly my weather report, for Weston super Mare, uk.


It is currently 3 centigrade (feels like 2C), dew point 4C, humidity 78%, there has been 1m... Read More

TWiV 276: Ramblers go viral

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 Host: Vincent Racaniello


Guests: Read More

Liquid soap in public toilets may be covering you in bacteria

Liquid hand soap in many public toilets is doing the opposite of improving hygiene, CCTV reports.

One sample was found to have 600 times more than the standard amount of bacteria, bringing it up to fast food ice levels of grossness. Experts warned that use of the soap could result in skin irr... Read More

Oral bacteria resulting from poor dental hygiene shows a potential association with Alzheimer’s disease

Researchers examined samples from the brains of patients with and without dementia and found lipopolysaccharide, a component of Porphyromonas gingivalis, an oral bacterium, in four out of 10 Alzheimer’s disease brain samples.

“This clearly shows that there is an association between oral bacte... Read More

Rare bacteria outbreak in cancer clinic tied to lapse in infection control procedure

Improper handling of intravenous saline at a West Virginia outpatient oncology clinic was linked with the first reported outbreak of Tsukamurella spp., gram-positive bacteria that rarely cause disease in humans, in a new report from the Centers for Disease Control and Prevention (CDC). The repor... Read More

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