Navigation Links
Team probes mysteries of oceanic bacteria
Date:3/3/2008

ples from the waters off Hawaii, in a part of the ocean known as the North Pacific Gyre.

Each liter of ocean water they collect contains up to a billion bacterial cells. For several years, researchers have been sequencing the DNA found in those bacteria, creating large databases of prevalent marine microbial genes found in the environment.

However, those DNA sequences alone cannot reveal which genes the bacteria are actually using in their day-to-day activities, or when they are expressing them.

Its a lot of information, and its hard to know where to start, said DeLong. How do you know which genes are actually important in any given environmental context?

To figure out which genes are expressed, DeLong and colleagues sequenced the messenger RNA (mRNA) produced by the cells living in complex microbial communities. mRNA carries instructions to the protein-building machinery of the cell, so if there is a lot of mRNA corresponding to a particular gene, it means that gene is highly expressed.

The new technique requires the researchers to convert bacterial mRNA to eukaryotic (non-bacterial) DNA, which can be more easily amplified and sequenced. They then use sequencing technology that is fast enough to analyze hundreds of millions of DNA base pairs in a day.

Once the sequences of highly expressed mRNA are known, the researchers can compare them with DNA sequences in the database of bacterial genes and try to figure out which genes are key players and what their functions are.

The team found some surprising patterns of gene expression, DeLong said. For example, about half of the mRNA sequences found are not similar to any previously known bacterial genes.


'/>"/>

Contact: Elizabeth Thomson
thomson@mit.edu
617-258-5402
Massachusetts Institute of Technology
Source:Eurekalert

Page: 1 2

Related biology news :

1. Comet probes reveal evidence of origin of life, scientists claim
2. Studying component parts of living cells with carbon nanotube cellular probes
3. New MIT tool probes brain circuits
4. Astronomy technology brings nanoparticle probes into sharper focus
5. Shuttle brings space-grown strep bacteria back for study
6. The worlds oldest bacteria
7. Bacteria from sponges make new pharmaceuticals
8. Boston University biomedical engineers find chink in bacterias armor
9. University of Leicester scientists discover technique to help friendly bacteria
10. Spaceflight shown to alter ability of bacteria to cause disease
11. A tiny pinch from a z-ring helps bacteria cells divide
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/29/2015)... Research and Markets ( http://www.researchandmarkets.com/research/2w6zgs/facial ) ... Recognition Market by Solution, by Software, by Hardware, ... report to their offering. The ... become more efficient and cost effective. This has ... from the commercial sector. The development of 3D ...
(Date:5/27/2015)... May 27, 2015   Codonics ... systems and image documentation solutions and ... technologically-advanced automation solutions, is pleased to announce ... Codonics® Safe Label System® (SLS), an award-winning ... with the Omnicell Anesthesia Workstation, helps prevent ...
(Date:5/25/2015)... 25, 2015  Australia,s market for wearable technologies is ... saw the advent of several trials and prototypes. The ... is expected to ignite interest in wearables as well ... Australia . This in turn will spur greater ... new partnerships amongst vendors and distributors. ...
Breaking Biology News(10 mins):Global advanced Facial Recognition Market Expected to Grow From $2.77 Billion in 2015 to $6.19 Billion in 2020, at an Estimated CAGR of 17.4% 2Codonics and Omnicell Expand Partnership 2Codonics and Omnicell Expand Partnership 3Codonics and Omnicell Expand Partnership 4Australian wearables market to grow at CAGR of 78%; revenue of A$1 billion by 2018, says Frost & Sullivan 2Australian wearables market to grow at CAGR of 78%; revenue of A$1 billion by 2018, says Frost & Sullivan 3Australian wearables market to grow at CAGR of 78%; revenue of A$1 billion by 2018, says Frost & Sullivan 4
... The U.S. Department of Homeland,Security (DHS) ... additional,fingerprints from international visitors arriving at Orlando ... the department,s upgrade from two-,to 10-fingerprint collection ... more accurately and efficiently establishing and verifying,visitors, ...
... FLAGSTAFF, Ariz. (Feb. 14, 2008) -- When scientists around the ... Mead, a researcher at Northern Arizona University, is one of ... the poop to prove it. "You have got to ... Laboratory of Quaternary Paleontology. "Although I don,t think anyone is ...
... Humans live in the midst of a seething, breathing ... and exotic, from the surface of the human skin, ... floors. Despite the powerful and pervasive role ... world remains a mystery. This is the subject of ...
Cached Biology News:DHS Begins Collecting 10 Fingerprints From International Visitors at Orlando International Airport 2Dung happens and helps scientists 2Dung happens and helps scientists 3Unexplored microbes hold incredible potential for science and industry 2Unexplored microbes hold incredible potential for science and industry 3
(Date:6/3/2015)... June 03, 2015 GEA's Panther™ ... which is a standalone, fully-equipped laboratory unit that is ... limited productions in pilot plants. The Panther™ NS3006L achieves ... compact design allows for easy installation with simple operation, ... This homogenizer can be used in many different industries, ...
(Date:6/3/2015)... 03, 2015 From smart street lighting ... part in enabling success in dealing with important Societal ... leaders helped bring focus to the role and further ... Photonics21 annual meeting last week in Brussels. ... held 28 and 29 May at the Hotel Le ...
(Date:6/2/2015)... - Shell today celebrated the North American launch of an ... exhibit the size of a city block in New ... and the public, and special appearances by industry leaders ... the best total engine protection by addressing three prominent ... corrosion. "With the launch of Shell V-Power ...
(Date:6/2/2015)... Global Stem Cells Group subsidiary Adimarket has been named ... the regeneration and repair of human organs and tissues. The ... expansion plans in Latin America, a commitment made to meet ... stem cell therapies. , Bioquark Inc. is ... to alter the regulatory state of human tissues and organs, ...
Breaking Biology Technology:GEA Announces the Panther™ NS3006L, a Self-Contained, Fully-Equipped Laboratory Homogenizer Well Suited for Pilot Plants 2Photonics21 Annual Meeting Focuses on Solutions for ‘Societal Challenges’ 2Photonics21 Annual Meeting Focuses on Solutions for ‘Societal Challenges’ 3New Shell V-Power NiTRO+ Premium Gasoline Introduces Breakthrough Formulation for BEST TOTAL Engine Protection 2New Shell V-Power NiTRO+ Premium Gasoline Introduces Breakthrough Formulation for BEST TOTAL Engine Protection 3New Shell V-Power NiTRO+ Premium Gasoline Introduces Breakthrough Formulation for BEST TOTAL Engine Protection 4Adimarket Named Latin American Distributor for Bioquark Biologic Products for the Regeneration and Repair of Human Organs and Tissue with Stem Cells 2Adimarket Named Latin American Distributor for Bioquark Biologic Products for the Regeneration and Repair of Human Organs and Tissue with Stem Cells 3
... the air-conditioning bill, middle class families in Wisconsin - and ... cost of energy. It's simply outrageous that it now costs ... continues to allow the oil companies to rack up record ... facing an energy crisis. It's a crisis of affordability for ...
... has received permission to continue trading company stock while it ... , ,Merge, a developer of medical imaging and information management ... it to continue listing its common stock subject to a ... The company was unable to comply with filing requirements by ...
... Silicon Pastures will invest $195,000 in St. ... next-generation credit card processor that does not use a ... to look beyond the state's borders, and Pehr Anderson, ... arrived at the right time and in the right ...
Cached Biology Technology:Wisconsin can lead the way to energy independence 2Wisconsin can lead the way to energy independence 3