Navigation Links
Up from the depths: How bacteria capture carbon in the 'twilight zone'
Date:9/1/2011

WALNUT CREEK, Calif.Understanding the flow and processing of carbon in the world's oceans, which cover 70 percent of Earth's surface, is central to understanding global climate cycles, with many questions remaining unanswered. Between 200 and 1,000 meters below the ocean surface exists a "twilight zone" where insufficient sunlight penetrates for microorganisms to perform photosynthesis. Despite this, it is known that microbes resident at these depths capture carbon dioxide that they then use to form cellular structures and carry out necessary metabolic reactions so that they can survive and reproduce. Details are now emerging about a microbial metabolic pathway that helps solve the mystery of how certain bacteria do this in the dark ocean. These research results, which are enabling a better understanding of what happens to the carbon that is fixed in the oceans every year, were published by a team of researchers, including those from the U.S. Department of Energy (DOE) Joint Genome Institute (JGI), in the September 2, 2011 edition of Science.

Carbon fixation in the dark ocean has so far been attributed primarily to the Archaea, single-celled organisms that often live in extreme environmental conditions. In this region of the ocean, the bacteria living there were thought to rely on organic compounds for both energy and carbon. According to DOE JGI collaborator Ramunas Stepanauskas, Director of the Bigelow Laboratory Single Cell Genomics Center and senior author of the Science paper, "Previous oceanographic models suggested that Archaea do not adequately account for the amount of carbon that is being fixed in the dark ocean. Our study discovered specific types of Bacteria rather than Archaea, and their likely energy sources that may be responsible for this major, unaccounted component of the dark ocean carbon cycle."

To overcome the challenge that had hindered studies of deep ocean microbes, which have not yet been cultivated in t
'/>"/>

Contact: David Gilbert
degilbert@lbl.gov
925-296-5643
DOE/Joint Genome Institute
Source:Eurekalert

Page: 1 2

Related biology news :

1. Scientists reengineer antibiotic to overcome dangerous antibiotic-resistant bacteria
2. New CU-Boulder study reveals bacteria from dog feces in outdoor air of urbanized air
3. U of Minnesota researchers discover a natural food preservative that kills food-borne bacteria
4. University of Houston professor co-authors PNAS paper on how bacteria move
5. New target found for nitric oxides attack on salmonella bacteria
6. Bacterial attack strategy uses special delivery of toxic proteins
7. UCLA study shows bacteria use Batman-like grappling hooks to slingshot on surfaces
8. New contrast agents detect bacterial infections with high sensitivity and specificity
9. Purdue biologists identify new strategy used by bacteria during infection
10. Drug shield helps target antibiotic resistant bacteria
11. When viruses infect bacteria
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/11/2015)... Today, ZUK announced its Android smartphone Z1, featuring FPC,s ... in 2015 that relate to sales of FPC1155 for this smartphone ... MSEK for 2015. Jörgen Lantto, CEO of FPC, comments: ... smartphone manufacturer in China and we are ... for Z1 , its ...
(Date:8/6/2015)... Germany , August 6, 2015 ... (SMI) shows the world,s first Eye Tracking ... Epson,s Moverio BT-200 see-through head mounted display and on ... unprecedented quality and efficiency is brought to personalized visualization ... the first time, professionals and researchers can integrate gaze, ...
(Date:8/5/2015)... VIEW, Calif. , Aug. 5, 2015 ... exhibits continuous growth in applications, penetration into newer sectors, ... after year. The global biosensors space has seen the ... exited the market so far. (Photo - ... Frost & Sullivan, Analysis of the Global Biosensors ...
Breaking Biology News(10 mins):FPC's Touch Fingerprint Sensor FPC1155 in ZUK's Smartphone Z1 2SMI Shows First Eye Tracking Upgrade for Augmented Reality Glasses 2SMI Shows First Eye Tracking Upgrade for Augmented Reality Glasses 3Innovative Biosensors Incite Use in Non-Traditional Applications 2Innovative Biosensors Incite Use in Non-Traditional Applications 3Innovative Biosensors Incite Use in Non-Traditional Applications 4
... molecule in plants - as in mammals including people. ... model plant, researchers have found that nitric oxide targets ... In collaborative work with the research group of Renu ... the Botany Department, University of Delhi, India, Agricultural Research ...
... ASM Press announces the latest addition to its Cumulative ... Cumitech 46 -- Laboratory Procedures for Diagnosis ... to provide guidance to the laboratory personnel and other ... selection, ordering and application of tests for the diagnosis ...
... a neutrophil releases a protein that can suppress glucose ... found. Neutrophils, a type of white blood ... to have a connection with glucose levels. During bacterial ... frequently results in hypoglycemia. In addition, many patients with ...
Cached Biology News:Nitric oxide regulates plants as well as people 2
(Date:9/2/2015)... , Sep. 02, 2015 ... announced the addition of Jain PharmaBiotech,s new report ... to their offering. This report follows ... characteristic that can be objectively measured and evaluated ... processes as well as pharmacological responses to a ...
(Date:9/2/2015)... 2015 Research ... the addition of Jain PharmaBiotech,s new report ... to their offering. The ... fluorescence in situ hybridization (FISH), comparative genomic ... includes application of nanobiotechnology, microarrays, real-time polymerase ...
(Date:9/2/2015)... , ... September 02, 2015 , ... ... of botanical and plant-derived compounds. BCC Research reveals in its new report ... because this market defines the category and generates the most market demand. ...
(Date:9/2/2015)... Australian prostate cancer technology company Minomic International Ltd has ... science that uses its patented antibody. The ... cancer diagnostic test known as MiCheck® next year, was ... peer-reviewed Australian Museum Eureka Science Prize for Excellence ... is awarded for ground breaking research that has only ...
Breaking Biology Technology:Updated 2015 Biomarkers Report - Latest Technologies, Markets and Companies Insights to 2024 with over 1,000 References 2Updated 2015 Biomarkers Report - Latest Technologies, Markets and Companies Insights to 2024 with over 1,000 References 3Global Cytogenetics Technologies Study 2015-2025 - Latest Markets and Companies Analysis 2Global Cytogenetics Technologies Study 2015-2025 - Latest Markets and Companies Analysis 3Plant-derived Compounds Poised to Assume Greater Role in Global Drug Markets, According to BCC Research 2Plant-derived Compounds Poised to Assume Greater Role in Global Drug Markets, According to BCC Research 3Prostate Cancer Company Minomic Wins Prestigious Eureka Science Prize 2Prostate Cancer Company Minomic Wins Prestigious Eureka Science Prize 3
... June 23 The 2008 BioHorizons Global,Symposium drew ... San Diego,California for a 3-day scientific program on ... clinician-moderated session featured a,panel discussion of audience-submitted questions ... Members of the scientific panel and moderators included ...
... Md. and SOUTH SAN FRANCISCO, Calif., June 23, ... Inc. today announced Robyn Barst as the recipient ... Pulmonary Arterial,Hypertension (PAH) Care. The grant, in the ... of Dr. Barst,s choice in order to support,continued ...
... Danube Pharmaceuticals, Inc., a,privately held biopharmaceutical company ... drugs for ophthalmology, is pleased,to announce the appointment ... Chief,Operating Officer., "Dr. Levy,s depth and breathe ... and medical affairs make him an excellent,addition to ...
Cached Biology Technology:BioHorizons Global Symposium 2008 Combines Record Attendance with Groundbreaking Technology 2Pulmonary Hypertension Association Names Recipient of 2008 Award of Excellence in Pulmonary Arterial Hypertension (PAH) Care 2Pulmonary Hypertension Association Names Recipient of 2008 Award of Excellence in Pulmonary Arterial Hypertension (PAH) Care 3Pulmonary Hypertension Association Names Recipient of 2008 Award of Excellence in Pulmonary Arterial Hypertension (PAH) Care 4Brian Levy, OD, MSc, Named Chief Operating Officer of Danube Pharmaceuticals 2Brian Levy, OD, MSc, Named Chief Operating Officer of Danube Pharmaceuticals 3
... APAgene kits are designed to rapidly and ... our patented APA Technology. APAgene provides hassle-free, ... price. All necessary ingredients are provided in ... be used for gap filling, localized cloning ...
N,N'-Methylene-bis-acrylamide, Ultra Pure...
... is designed to deparaffinize and perform Heat ... paraffin-embedded tissue sections mounted on glass microscope ... paraffin at the high temperature used in ... of the paraffin by detergent. Formaldehyde fixation ...
... to deparaffinize and perform Heat Induced Antigen ... sections mounted on glass microscope slides. Deparffinization ... the high temperature used in HIER (over ... paraffin by detergent. Formaldehyde fixation impairs or ...
Biology Products: