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 August 23, 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 August 23, 2014).

Share This




More Plants & Animals News

Saturday, August 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Endangered Red Wolves Face Uncertain Future

Endangered Red Wolves Face Uncertain Future

AP (Aug. 22, 2014) A federal judge temporarily banned coyote hunting to save endangered red wolves, but local hunters say that the wolf preservation program does more harm than good. Meanwhile federal officials are reviewing its wolf program in North Carolina. (Aug. 22) Video provided by AP
Powered by NewsLook.com
Farm Resurgence Grows With Younger Crowd

Farm Resurgence Grows With Younger Crowd

AP (Aug. 22, 2014) New England farms are seeing a surge in younger farm hands as the 'buy local' food movement grows across the country. (Aug. 22) Video provided by AP
Powered by NewsLook.com
Drug Used To Treat 'Ebola's Cousin' Shows Promise

Drug Used To Treat 'Ebola's Cousin' Shows Promise

Newsy (Aug. 21, 2014) An experimental drug used to treat Marburg virus in rhesus monkeys could give new insight into a similar treatment for Ebola. Video provided by Newsy
Powered by NewsLook.com
Terrifying City-Dwelling Spiders Are Bigger And More Fertile

Terrifying City-Dwelling Spiders Are Bigger And More Fertile

Newsy (Aug. 21, 2014) According to a new study, spiders that live in cities are bigger, fatter and multiply faster. 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