HOME >> BIOLOGY >> NEWS
Hydrogen and methane provide raw energy for life at 'Lost City'

The hydrothermal vents were miles from where anyone could have imagined. One massive seafloor vent was an unheard of 18 stories tall. And all were creamy white and gray, suggesting a very different composition than vent systems studied since the 1970s.

Scientists who named the spot Lost City knew they were looking at something never seen before when the field was serendipitously discovered in December 2000 during a National Science Foundation expedition to the mid-Atlantic.

This week in Science, researchers publish for the first time findings about the gases produced at Lost City and the organisms that make their living off them. Both are so different from so-called black-smoker hydrothermal vents that they may provide a whole new avenue for looking for the earliest life on Earth and for signs of life on other planets, according to Deborah Kelley, University of Washington oceanographer and lead author of the Science article.

Microorganisms at Lost City are living in fluids with alkaline pH that ranges from 9 to 11, which is nearly as caustic as Liquid-Plumr, Kelley says. This compares to the previously studied black-smoker vents where organisms are well adjusted to acidic pHs.

Further, she says, Lost City microbes appear to live off bountiful methane and hydrogen. Absent is carbon dioxide, the key energy source for life at black-smoker vents. And there is little hydrogen sulfide and only very low traces of metals, on which many of the microbes at the other kind of vents depend. The difference in what's available is because water circulates through the Lost City hydrothermal vent field via serpentinization, a chemical reaction between seawater and the mantle rock on which Lost City sits. The resulting fluids are 105 F to 170 F. At the other kind of field, first discovered in the early 1970s, volcanic activity or magma drives venting and fluids can reach 700 F. The vents at such sites are often referred to as black smokers because some emit h
'"/>

Contact: Sandra Hines
shines@u.washington.edu
206-543-2580
University of Washington
3-Mar-2005


Page: 1 2 3 4

Related biology news :

1. Plants do not emit methane
2. Explaining the methane mystery
3. Sequencing the genome of a new kind of methane producer
4. The forgotten methane source
5. LUCA technologies confirms real-time methane generation
6. New study suggests Concord grape juice may provide protection against breast cancer
7. Female gender provides an advantage in renal diseases
8. Forecasting system provides flood warnings to vulnerable residents of Bangladesh
9. Discovery of new protein could provide new understanding of male fertility
10. Einstein researchers prototype vaccine could provide improved protection against tuberculosis
11. Genomics study provides insight into the evolution of unique human traits

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/19/2019)... ... February 18, 2019 , ... ... of advanced delivery technologies and development solutions for drugs, biologics and consumer ... Company’s (P&G) highest external business partner recognition, the External Business Partner of ...
(Date:2/13/2019)... ... 2019 , ... Cambridge Innovation Institute (CII) is pleased to ... which includes four annual Internet of Business (IoB) events in the U.S., consisting ... Kuhl, President, Cambridge Innovation Institute, says, "We are delighted to be able to ...
(Date:2/12/2019)... , ... February 12, 2019 , ... Ava, a 115-pound ... she partially tore one of her cruciate ligaments. Just one year later, she ... nature, was able to recover without surgical intervention and resumed her normal activities without ...
Breaking Biology News(10 mins):
(Date:2/2/2019)... ... February 01, 2019 , ... Biomatlante, a ... of its new CEO, Julien Dert, being effective on February 1st, 2019. , ... finance and management, in which more than 12 years in the Medical Device ...
(Date:1/30/2019)... SAN JUAN, Puerto Rico (PRWEB) , ... January 29, 2019 , ... ... Negotiations, will be the featured expert at a special online event titled: Six ... be held 1 p.m. eastern time, February 13, 2019 on the BrightTALK network. ...
(Date:1/28/2019)... ... January 28, 2019 , ... Fragment-based lead discovery (FBLD) ... this early stage, false positives can be problematic due to high levels of ... screening techniques are highly sensitive to detect weak interactions. Nanomed , leading ...
(Date:1/21/2019)... ... 2019 , ... Microbial Discovery Group (MDG), a leading Bacillus ... cleaning market. MDG’s SporActiv liquid and powder product line contains safe ingredients that ... floor and tile cleaners, carpets, drains, portable restroom cleaning and more. , ...
Breaking Biology Technology:
Cached News: