Navigation Links
Yellowstone microbes fueled by hydrogen, according to U. of Colorado study

ions appropriate for energy metabolism. The team used computer-generated thermodynamic models to find out if hydrogen was indeed the principle source of energy. "You can smell sulfide in the air at Yellowstone, and the accepted idea was that sulfur was the energy source for life in the hot springs," Spear said. Not so, according to the team's computer models built on field measurements of hydrogen, sulfide, dissolved oxygen concentration and other factors. Spear said it was difficult to explore a microbial ecosystem. "We have a hard enough time explaining what's going on in a forest, for example, with all the interlacing systems. We can't even see a microbial system." Sample extraction was a dangerous and delicate operation. In order to accurately analyze a hot spring's entire microbial community, Spear needed to collect only about as much material as a pencil eraser. Sediment samples were scooped into special sample vials and immediately frozen in liquid nitrogen canisters to preserve the microbial community. In springs where there was no sediment, Spear collected samples of planktonic organisms by hanging a glass slide in the water and allowing the microbes to accumulate. "Bacteria are just like us. They like to be together, they like to be attached to a surface and they like to have their food - dissolved hydrogen, in this case -- brought to them." Spear explained that the hot springs' colors are the result of interactions between minerals and the microbes living in the pools. Hotter water usually shows colors from minerals, and cooler water plays host to photosynthetic pigments. "Based on what I've seen in this analysis, I think hydrogen probably drives a lot of life in a lot of environments," Spear said. "It's part speculation, but given the number and kinds of bacteria that are metabolizing hydrogen, it's probably a very old form of metabolism. That's important because it tells us about the history of life on Earth," he said. "And if it works this way on Earth
'"/>

Source:University of Colorado at Boulder


Page: 1 2 3 4

Related biology news :

1. W.M. Keck Foundation funds study of friendly microbes
2. Harnessing microbes, one by one, to build a better nanoworld
3. Leprosy microbes lead scientists to immune discovery
4. Could microbes solve Russias chemical weapons conundrum?
5. Proteomics brings researchers closer to understanding microbes that produce acid mine drainage
6. Freeze-dried mats of microbes awaken in Antarctic streambed
7. Understanding the oceans microbes is key to the Earths future
8. Wisconsin scientists discover a master key to microbes pathogenic lifestyles
9. New method for identifying microbes
10. EGF receptor activation prevents microbes from going more than skin deep
11. Gut microbes partnership helps body extract energy from food, store it as fat
Post Your Comments:
(Date:9/16/2014)... Scotland votes for independence later this week, its Government ... people that fracking is necessary, research has revealed. , ... tracking public perception of shale gas extraction in the ... living north of the border are the least supportive ... research in the University,s School of Geography, said: "The ...
(Date:9/16/2014)... From the salmon-rich waters of Southeast Alaska to ... Downeast Maine,s lobster, lumber and tourist towns, coastal residents ... about coastal environments divide along political lines. That,s a ... New Hampshire sociologists published this month in the journal ... a lot of environment-related differences from place to place ...
(Date:9/16/2014)... years ago, the Exxon Valdez spilled 11 million gallons ... themselves cleaning up another giant oil spill in the ... study in the Journal of Consumer Research , ... immediate anxieties instead of catalyzing changes in the way ... national news media coverage of these two events helped ...
Breaking Biology News(10 mins):Scottish people most sceptical on fracking, survey shows 2Scottish people most sceptical on fracking, survey shows 3Politics divide coastal residents' views of environment, UNH research finds 2Politics divide coastal residents' views of environment, UNH research finds 3Exxon Valdez 2014: Does media coverage of manmade disasters contribute to consumer complacency? 2
... summer for sports, fans. World records tumbled at the ... 200m world records, knocking tenths of a second off ... the last few decades, which made marathon runner Mark ... increase in population could account for these dramatic improvements. ...
... genetic polymorphisms induce major differentiations in the metabolic ... paper published November 28 in the open-access journal ... of researchers, led by Karsten Suhre, has conducted ... variants in genes involved in the breakdown of ...
... A new and insidious environmental threat has been ... Queen,s and York universities. Along with scientists ... documented biological damage caused by declining levels of ... the phenomenon "aquatic osteoporosis," Queen,s PhD candidate Adam ...
Cached Biology News:100-meter sprint world record could go as low as 9.48 seconds 2Study identifies genetic variants giving rise to differences in metabolism 2Queen's University biologists find new environmental threat in North American lakes 2
(Date:9/15/2014)... United States (PRWEB) September 16, 2014 ... Inhibitors, Cancer Vaccines, and Adoptive T-cell Therapies is ... This report focuses on the three principal types ... of research and development in cancer immunotherapy (which ... inhibitors, Therapeutic anticancer vaccines and Adoptive cellular immunotherapy. ...
(Date:9/15/2014)... 2014  FlexTech Alliance today issued a dual-focused ... demonstrators (demos) and a functional electronic print leaflet.  ... due on October 22, 2014 and full proposals ... selected are provided by the US Army Research ... by the proposing organization. Photo - ...
(Date:9/15/2014)... has sepsis, a life-threatening condition in which bacteria or ... fast for antibiotics to help. A new device inspired ... at Harvard,s Wyss Institute for Biologically Inspired Engineering may ... "Even with the best current treatments, sepsis patients are ... of the time," said Mike Super, Ph.D., Senior Staff ...
(Date:9/15/2014)... interdisciplinary team of researchers led by Northeastern University ... precise inter-nanotube junctions and a variety of nanocarbon ... facile and easily scalable, which will allow the ... networks for use in applications ranging from electronic ... from cars to sports equipment. , Their findings ...
Breaking Biology Technology:Cancer Immunotherapy Market: Immune Checkpoint Inhibitors, Cancer Vaccines, and Adoptive T-cell Therapies 2Cancer Immunotherapy Market: Immune Checkpoint Inhibitors, Cancer Vaccines, and Adoptive T-cell Therapies 3Cancer Immunotherapy Market: Immune Checkpoint Inhibitors, Cancer Vaccines, and Adoptive T-cell Therapies 4Cancer Immunotherapy Market: Immune Checkpoint Inhibitors, Cancer Vaccines, and Adoptive T-cell Therapies 5FlexTech Alliance Issues 2015 Request for Proposals in Flexible, Printed Electronics 2Blood-cleansing biospleen device developed for sepsis therapy 2Blood-cleansing biospleen device developed for sepsis therapy 3Blood-cleansing biospleen device developed for sepsis therapy 4Northeastern University Researchers Develop Novel Method for Working with Nanotubes 2
... Inc. (Nasdaq: ECTE ), a company developing ... continuous glucose monitoring (tCGM) system and the Prelude® SkinPrep ... from its clinical study of its Symphony tCGM System ... Data from the study confirm that Symphony successfully monitors ...
... create electrical components like resistors, transistors and diodes, that ... Nongjian (NJ) Tao, a researcher at the Biodesign Institute ... molecules may also allow clever designers to produce novel ... conventional electronics. In research appearing in today,s ...
... YORK, Dec. 5, 2011 Levi & Korsinsky is ... securities of Pacific Biosciences of California, Inc. ("PacBio" or ... violations of federal securities laws. For more ... The investigation stems from allegations that the Company failed ...
Cached Biology Technology:Echo Therapeutics Announces Positive Results of Clinical Trial of its Symphony® Transdermal Continuous Glucose Monitoring (tCGM) System in Patients With Type 1 and Type 2 Diabetes 2Echo Therapeutics Announces Positive Results of Clinical Trial of its Symphony® Transdermal Continuous Glucose Monitoring (tCGM) System in Patients With Type 1 and Type 2 Diabetes 3Echo Therapeutics Announces Positive Results of Clinical Trial of its Symphony® Transdermal Continuous Glucose Monitoring (tCGM) System in Patients With Type 1 and Type 2 Diabetes 4S-t-r-e-t-c-h-i-n-g electrical conductance to the limit 2S-t-r-e-t-c-h-i-n-g electrical conductance to the limit 3The Law Firm of Levi & Korsinsky, LLP Launches an Investigation Into Possible Securities Laws Violations by Pacific Biosciences of California, Inc. 2
... Decorin ( Abpromise for all ... Synthetic peptide: IGPEVPDDRDFEPS conjugated to ... of Human Decorin (fragment 36-49 of ... Entrez GeneID: ...
GLP expression profiling service on the Affymetrix platform. Starting material can be blood, tissue or RNA. 5 day turnaround. Standard and custom post analyses of microarray data available....
... System is a fluorescent microscopy-based imaging system ... cells and automatically calculates cell viability, in ... routine function, the variability associated with the ... eliminated. Using the EasyCount ViaSure Kit, up ...
In Western blotting antibodies recognize 94 K protein band, which corresponds to S-layer protein...
Biology Products: