Featured Research

from universities, journals, and other organizations

'Hellish' Hot Springs Yield Greenhouse Gas-eating Bug

Date:
December 7, 2007
Source:
University of Calgary
Summary:
A new species of hardy methane-eating bacteria has been discovered in hot springs in New Zealand. Scientists discovered the methane-eating microorganism in the geothermal field known as Hell's Gate, near the city of Rotorua in New Zealand.

University of Calgary biology professor Peter Dunfield and colleagues discovered a methane-eating microorganism in the geothermal field known as Hell's Gate, near the city of Rotorua in New Zealand.
Credit: Peter Dunfield

A new species of bacteria discovered living in one of the most extreme environments on Earth could yield a tool in the fight against global warming.

University of Calgary biology professor Peter Dunfield and colleagues discovered a methane-eating microorganism in the geothermal field known as Hell's Gate, near the city of Rotorua in New Zealand. It is the hardiest "methanotrophic" bacterium yet discovered, which makes it a likely candidate for use in reducing methane gas emissions from landfills, mines, industrial wastes, geothermal power plants and other sources.

"This is a really tough methane-consuming organism that lives in a much more acidic environment than any we've seen before," said Dunfield, who is the lead author of the paper. "It belongs to a rather mysterious family of bacteria (called Verrucomicrobia) that are found everywhere but are very difficult to grow in the laboratory."

Methanotrophic bacteria consume methane as their only source of energy and convert it to carbon dioxide during their digestive process. Methane (commonly known as natural gas) is 20 times more potent a greenhouse gas than carbon dioxide and is largely produced by decaying organic matter. Scientists have long known that vast amounts of methane are produced in acidic environments, not only geothermal sites but also marshes and peat bogs. Much of it is consumed by methanotrophic bacteria, which serve an important role in regulating the methane content of the world's atmosphere.

"Scientists are interested in understanding what conditions cause these bacteria to be more or less active in the environment" says Dunfield, "Unfortunately, few species have been closely studied. We now know that there are many more out there."

Dunfield has tentatively named the new bacterium Methylokorus infernorum to reflect the 'hellish' location of its discovery where it lives in boiling waters filled with chemicals that are toxic to most life forms. The Maori caretakers of the site, the Tikitere trust, have supported scientific study of the area. The study was conducted while Dunfield was working for GNS Science, a geological research institute owned by the New Zealand government. He recently joined the U of C's Department of Biological Sciences as a professor of environmental microbiology.

The bacterium's genome has been completely sequenced by researchers at the University of Hawaii and Nankai University in China, which could help develop biotechnological applications for this organism.

Dunfield said he plans to pursue his work in Canada by hunting for new life forms in extreme environments such as northern peatlands, the oilsands of northern Alberta and the hot springs of Western Canada.

"Hot springs are exotic and extreme habitats, where you find a lot of bizarre organisms," he said. "Bacteria are a fascinating group to work with because 95 per cent of them have never been studied in a lab and we have very little idea about what this huge amount of biodiversity is capable of."

This research was published December 6 in the journal Nature.


Story Source:

The above story is based on materials provided by University of Calgary. Note: Materials may be edited for content and length.


Cite This Page:

University of Calgary. "'Hellish' Hot Springs Yield Greenhouse Gas-eating Bug." ScienceDaily. ScienceDaily, 7 December 2007. <www.sciencedaily.com/releases/2007/12/071206110822.htm>.
University of Calgary. (2007, December 7). 'Hellish' Hot Springs Yield Greenhouse Gas-eating Bug. ScienceDaily. Retrieved July 28, 2014 from www.sciencedaily.com/releases/2007/12/071206110822.htm
University of Calgary. "'Hellish' Hot Springs Yield Greenhouse Gas-eating Bug." ScienceDaily. www.sciencedaily.com/releases/2007/12/071206110822.htm (accessed July 28, 2014).

Share This




More Plants & Animals News

Monday, July 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Traditional African Dishes Teach Healthy Eating

Traditional African Dishes Teach Healthy Eating

AP (July 28, 2014) Classes are being offered nationwide to encourage African Americans to learn about cooking fresh foods based on traditional African cuisine. The program is trying to combat obesity, heart disease and other ailments often linked to diet. (July 28) Video provided by AP
Powered by NewsLook.com
Raw: Sea Turtle Hatchlings Emerge from Nest

Raw: Sea Turtle Hatchlings Emerge from Nest

AP (July 27, 2014) A live-streaming webcam catches loggerhead sea turtle hatchlings emerging from a nest in the Florida Keys. (July 27) Video provided by AP
Powered by NewsLook.com
Russia Saves Gecko Sex Satellite, Media Has Some Fun With It

Russia Saves Gecko Sex Satellite, Media Has Some Fun With It

Newsy (July 27, 2014) The satellite is back under ground control after a tense few days, but with a gecko sex experiment on board, the media just couldn't help themselves. Video provided by Newsy
Powered by NewsLook.com
Trees Could Save More Than 850 Lives Each Year

Trees Could Save More Than 850 Lives Each Year

Newsy (July 27, 2014) A national study conducted by the USDA Forest Service found that trees collectively save more than 850 lives on an annual basis. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins