The clue to this came from another marine bacterium, and it's a bacterium called Vibrio fischeri.

They were oxygen, hydrogen, nitrogen, carbon monoxide, methane, and nitric oxide.

Some researchers consider the reaction with nitric oxide the most problematic, because it raises blood pressure.

Is it bigger than the biggest bacterium? We don't know.

Hygromycin B is an antibiotic produced by the bacterium Streptomyces hygroscopicus .

Providencia is a Gram negative, motile bacterium of the family Enterobacteriaceae.

And so this particular bacterium is actually visible to the naked eye.

A bacterium, which has no consciousness at all, wants to move towards light.

Now this bacterium is part of mats that are found off the coast of Chile.

What you're looking at on this slide is just a person from my lab holding a flask of a liquid culture of a bacterium, a harmless beautiful bacterium that comes from the ocean, named Vibrio fischeri.

What we now know is that if we treat the animal with a pathogenic bacterium a multi drug resistant pathogenic bacterium in the same time we give our anti quorum sensing molecule, in fact, the animal lives.

They either pop the bacterial membrane, they make the bacterium so it can't replicate its DNA.

Already it is possible to sequence the entire genetic code of a bacterium in under four hours.

The toxin that causes diphtheria is produced by a normally benign bacterium when infected with a certain virus.

This bacterium has the special property that it makes light, so it makes bioluminescence, like fireflies make light.

Two billion people worldwide carry the bacterium that causes TB, one in ten of whom will develop the disease.

This transfer of genetic sequences from parasites to hosts could involve hundreds of genes for a bacterium in different hosts.

In biological systems, this means that its main reactions are with itself (dismutation) or with another biological radical such as nitric oxide (NO) or with a transition series metal.

What the important thing is that we learned is that every bacterium has exactly the same enzyme and makes exactly the same molecule.

What you know is that when that bacterium gets into the animal, in this case, a mouse, it doesn't initiate virulence right away.

Some strains of this bacterium are pathogenic to humans as it is strongly associated with peptic ulcers, chronic gastritis, duodenitis, and stomach cancer.

For example, if the bacterium Wolbachia s genes are integrated by different hosts, such as spiders, insects, or worms, the hosts offspring are also descendants of Wolbachia.

But with synthetic biology, we can actually imagine engineering this bacterium to produce something that gives us the quality, quantity and shape of material that we desire.

First we figured out how this bacterium does this, but then we brought the tools of molecular biology to this to figure out really what's the mechanism.

Their bodies had been totally taken over by another organism, a bacterium, that had figured out how to replicate photosynthesis in the dark, through a process we now call chemosynthesis.

The genome of the bacterium has been sequenced and a study has shown several genes can generate enzymes for degrading skin and proteins that may be immunogenic (activating the immune system).

So you can find a little feature on a bacterium that you don't like, like Staphylococcus I don't like it in particular, because it killed a professor friend of mine last year.

Syringaresinol, a lignan and the hydrolysate of liriodendrin, occurring also in Castela emoryi , Prunus mume and Magnolia thailandica , has been shown to inhibit the motility of peptic ulcer causing bacterium Helicobacter pylori .

Instead, they have focused on strategies for preventing the kidneys from filtering the infused hemoglobin the hemoglobin from leaking through the blood vessel walls and synthetic hemoglobin from destroying nitric oxide (a gas produced in blood vessels that helps them to dilate and increase blood flow).

More than two billion people carry the TB bacterium, and at some point about 10 of them will develop the disease, which kills some 1.5 million victims per year (compared to 20,000 dead in the recent Ebola outbreak).

It is a disease which cannot be detected, caused not by a virus or a bacterium, but simply by a protein which has no nucleic acids, that is to say it cannot be identified by a blood test.

And it opens and closes the shutter so the amount of light coming out of the bottom which is made by the bacterium exactly matches how much light hits the squid's back, so the squid doesn't make a shadow.

Why this is interesting is because in the past decade we have found that this is not just some anomaly of this ridiculous, glow in the dark bacterium that lives in the ocean all bacteria have systems like this.

Somehow, we have to explain how when you put together teams, armies, battalions of hundreds of millions of little robotic unconscious cells not so different really from a bacterium, each one of them the result is this. I mean, just look at it.

In late April, a delegation from the Peruvian Ministry of Education that arrived to the area confirmed that over ten children had passed away due to whooping cough, a highly contagious disease of the airways caused by the Gram negative bacterium Bordetella pertussis. They also confirmed there were more children infected.

There are people who are mimicking the energy harvesting device inside of purple bacterium, the people at ASU. Even more interesting, lately, in the last couple of weeks, people have seen that there's an enzyme called hydrogenase that's able to evolve hydrogen from proton and electrons, and is able to take hydrogen up basically what's happening in a fuel cell, in the anode of a fuel cell and in a reversible fuel cell.