Multiple new strains of bacteria discovered in the human belly button

Jul 06, 2011 by Deborah Braconnier report
Image: Belly Button Biodiversity

(Medical Xpress) -- New research released this week may find you spending a few extra minutes in the shower scrubbing your belly button. Researchers from the Belly Button Biodiversity project, led by Jiri Hulcr from North Carolina State University, have revealed their first round of DNA results and reveal the discovery of some 1,400 strains of bacteria living inside volunteer’s belly buttons, and 662 of those are unrecognized strains.

The team of researchers solicited samples from volunteer’s belly buttons and then took the samples back to the lab to cultivate and analyze the content. They extracted DNA from the bacterial samples and compared it to DNA information that can be found on public databases.

What they discovered was that 40 species account for about 80 percent of all the bacteria found in belly buttons. However, they discovered 662 that are currently unrecognized and are believed to be new to science.

Two of the volunteers that provided belly button swabs were New Scientist journalist Peter Aldhous and science writer Carl Zimmer. While Aldhous apparently is an avid belly button scrubber, revealing no bacterial colonies in his navel, Zimmer’s swab revealed 53 species of bacteria. Zimmer described in his own column how the results showed that out of those 53 species, 35 were found in other participants of the study, but he had 17 different species in his navel that no one else had. One , Marimonas, has only been seen previously in the ocean, and another, Georginia, has only been found in the soils of Japan.

In looking over the projects website, Belly Button Biodiversity, you can see that the purpose of this project is to raise awareness and interest in microbiology. The idea that our skin is covered in a vast array of life that very little is really known about is the purpose of the project. They chose the belly button as their target skin sample because it is isolated and a great place for microbes to take up residence. They compare this skin exploration to that of the first explorers reaching the sands of a new continent.

While this project was created to help learn and teach about the life found on your skin, the project’s initial results are making a real contribution to better understanding microbial diversity.

This round was limited to , so who knows just what fungi, viruses, or other creatures could be calling your navel home.

Explore further: Do sexually transmitted diseases drive variation in mammalian immunity?

Related Stories

Study finds unexpected bacterial diversity on human skin

May 28, 2009

The health of our skin -- one of the body's first lines of defense against illness and injury — depends upon the delicate balance between our own cells and the millions of bacteria and other one-celled microbes ...

Recommended for you

Researchers identify new mechanism to aid cells under stress

6 hours ago

A team of biologists from NYU and Harvard has identified new details in a cellular mechanism that serves as a defense against stress. The findings potentially offer insights into tumor progression and neurodegenerative diseases, ...

Researchers image and measure tubulin transport in cilia

7 hours ago

Defective cilia can lead to a host of diseases and conditions in the human body—from rare, inherited bone malformations to blindness, male infertility, kidney disease and obesity. Scientists knew that somehow ...

Researchers find unusually elastic protein

10 hours ago

Scientists at Heidelberg University have discovered an unusually elastic protein in one of the most ancient groups of animals, the over 600-million-year-old cnidarians. The protein is a part of the "weapons system" that the ...

How malaria-spreading mosquitoes can tell you're home

Jan 22, 2015

Females of the malaria-spreading mosquito tend to obtain their blood meals within human dwellings. Indeed, this mosquito, Anopheles gambiae, spends much of its adult life indoors where it is constantly expose ...

User comments : 3

Adjust slider to filter visible comments by rank

Display comments: newest first

gwrede
4.3 / 5 (6) Jul 06, 2011
Good thing this article isn't in a ladies' magazine. I don't want my woman to force me to scrub my bellybutton with bowl bleach.
poof
5 / 5 (2) Jul 06, 2011
Good thing they didnt swab a girls belly button, god only knows how many different lifeforms they would find.
Jaeherys
3 / 5 (2) Jul 06, 2011
Looks like I'm going to be growing some cultures :D.

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.