AUG 11, 2020 8:20 AM PDT

A New Microbe is Discovered in an 'Unnatural' Environment

WRITTEN BY: Carmen Leitch

Humans have changed their environments in sometimes drastic ways. While we can exert a degree of control over our surroundings, we still share the world and even our own bodies with microbes that have colonized the habitats we've made. Now scientists have identified a new bacterium that can be commonly found in human-created environments - in this case, it was collected from solar panels on Harvard University's Arnold Arboretum. The microbe has been reported in the International Journal of Systematic and Evolutionary Microbiology.

Image credit: Public domain pictures

"Every time we throw up panels, every time we create new surfaces, not only are there things that can exploit them like this new species, but you shouldn't expect that evolution isn't going to happen and create things that better exploit them over time," said Arboretum Director William "Ned" Friedman. "In urban ecosystems, one might even anticipate that there are accelerated aspects of evolution because you're presenting nature with new challenges or opportunities."

This serves as a reminder that the natural world still persists even in environments that aren't traditionally considered natural, noted Friedman.

This bacterium, Sphingomonas solaris, is characterized by colorful pigments, and it loves high temperatures, solar radiation, nutrient restriction, and desiccation.

Visiting graduate student Kristie Tanner from the University of Valencia found the microbe during an afternoon trip to the solar array. The panels were sampled with sterile swabs and bacterial genes were assessed in the lab of Ahmad Khalil, a visiting scholar at Harvard’s Wyss Institute for Biologically Inspired Engineering and a Boston University biomedical engineering professor. Forty different species of bacteria were found, and one of them carried a bacterial marker, a 16S gene, that was different from any that have ever been cataloged.

"It was a big surprise," Tanner said. "I've been doing bioprospecting for five years, studying bacteria in these weird and wonderful environments, and I said, 'This could be a new species.'"

Tanner and Friedman suggested that this new species might have moved to where they found it from the soil nearby. It's a member of the Sphingomonas genus, which was first identified in 1990 and has at least 120 members. Some of these microbes could be useful in helping to remove heavy metals from the environment.

Learn more about how environments that are created by people have uniquely adapted communities of microbes within them from the videos. The one above is by

NASA, while the one below was made by the University of Oregon.

Sources: Phys.org via Harvard University, International Journal of Systematic and Evolutionary Microbiology

About the Author
  • Experienced research scientist and technical expert with authorships on 28 peer-reviewed publications, traveler to over 60 countries, published photographer and internationally-exhibited painter, volunteer trained in disaster-response, CPR and DV counseling.
You May Also Like
JUL 05, 2020
Cell & Molecular Biology
COVID-19 Attacks Endothelial Cells
JUL 05, 2020
COVID-19 Attacks Endothelial Cells
The pandemic virus SARS-CoV-2 enters the body through the respiratory system to cause the illness COVID-19. But we know ...
JUL 19, 2020
Microbiology
A Hybrid Fungus Is Linked to Lung Infections
JUL 19, 2020
A Hybrid Fungus Is Linked to Lung Infections
A type of fungus that's been found in soil or plants has now been identified in a hospital environment and in people for ...
JUL 27, 2020
Space & Astronomy
Bacteria More Lethal and Antibiotic Resistant in Space
JUL 27, 2020
Bacteria More Lethal and Antibiotic Resistant in Space
Research has shown that bacteria are more lethal and resistant to antibiotics when exposed to microgravity (a lack of gr ...
AUG 11, 2020
Clinical & Molecular DX
Supervillain Alert! New Tech IDs Drug-Resistant Superbugs.
AUG 11, 2020
Supervillain Alert! New Tech IDs Drug-Resistant Superbugs.
The human body is made up of around 10 trillion cells. Fascinatingly, we have 10 times more bacterial cells on our bodie ...
AUG 30, 2020
Microbiology
Thousands of Viruses Call the Human Gut Home
AUG 30, 2020
Thousands of Viruses Call the Human Gut Home
Trillions of microorganisms live in the human gut, and they have a significant impact nonhuman health. Researchers are l ...
SEP 09, 2020
Microbiology
Changing How We Think of Drug Resistance in Fungi
SEP 09, 2020
Changing How We Think of Drug Resistance in Fungi
It's been estimated that fungal infections cause more than one million deaths worldwide, and many more are affected.
Loading Comments...