Navigation Links
Team finds a better way to watch bacteria swim
Date:10/4/2009

ng in three dimensions for more than about 30 seconds, the researchers said. And it is nearly impossible to determine what cues are spurring a cell to move in a given direction. The new method addresses both of these problems without altering the normal behavior of the bacterium, they found.

"Because the cell is immobilized, what we do is change the environment around it," Chemla said. "We can set up a flow cell that has two different concentrations of some chemical, for example, and see how the bacterium responds. Technically we're moving the swimming pool relative to the swimmer," he said.

The new approach allows the researchers to track a single bacterium as it swims for up to an hour, "which is orders of magnitude above what people could do before," Golding said. This will offer a new look at questions that so far have been unanswerable, he said.

"For example, some people have asked whether E. coli has a nose. Does it have a front and back?" Golding said. The team's observations indicate that while the bacterium can travel in either direction, most E. coli have "a pronounced preference" for one over the other, he said.

The researchers found that after most tumbles, a bacterium usually continued swimming in the same general direction, but that about one in six tumbles caused it to change direction completely. They were also able to quantify other features of bacterial swimming, such as changes in velocity and the time spent running and tumbling. The new technique will allow researchers to address many more questions about this model organism, they said.

"That's the typical way biology moves forward," Golding said. "You develop a new measurement capability and then you can use that to go back and look at fundamental questions that people had been looking at but had no way of answering."


'/>"/>

Contact: Diana Yates
diya@illinois.edu
217-333-5802
University of Illinois at Urbana-Champaign
Source:Eurekalert  

Page: 1 2

Related biology news :

1. University of Oregon researcher finds that on waters surface, nitric acid is not so tough
2. Study finds environmental tests help predict hospital-acquired Legionnaires disease risk
3. Study finds blocking angiogenesis signaling from inside cell may lead to serious health problems
4. Study finds Viagra increases release of key reproductive hormone
5. Survey finds elevated rates of new asthma among WTC rescue and recovery workers
6. St. Jude finds factors that accelerate resistance to targeted therapy in lymphoblastic leukemia
7. Study finds a high rate of asthma in college athletes
8. Ecologist finds dire devastation of snake species following floods of 93, 95
9. Men shed light on the mystery of human longevity, study finds
10. JILA finds flaw in model describing DNA elasticity
11. Americans remain pessimistic about the environment, Stanford-AP survey finds
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Team finds a better way to watch bacteria swim
(Date:4/21/2015)... 21, 2015 High crime ... are boosting access control systems market in ... a recently published report by TechSci Research " Saudi ... access control systems market in Saudi Arabia ... 2020.The access control systems market in the Kingdom is ...
(Date:4/20/2015)... The announcement comes as demand for fire ... Ireland,s foremost records management company, has ... an impressive track record of clients within the first 12 ... management sector in Dubai . As a ... employ a further eight staff members at its Irish headquarters. ...
(Date:4/14/2015)... YORK , April 14, 2015  HYPR ... IDentity Online (FIDO ® ) Alliance tm , ... specifications. FIDO members commit to share technology and ... methods that are interoperable, more secure and private, ... enable biometric identity verification that protects sensitive user ...
Breaking Biology News(10 mins):Saudi Arabia Access Control Systems Market to Touch USD1.2 Billion by 2020 Says TechSci Research 2Saudi Arabia Access Control Systems Market to Touch USD1.2 Billion by 2020 Says TechSci Research 3Glenbeigh Records Management Wins Contract With Dubai Islamic Bank 2Glenbeigh Records Management Wins Contract With Dubai Islamic Bank 3HYPR Corp. Joins the FIDO Alliance 2HYPR Corp. Joins the FIDO Alliance 3
... genetic clues into rheumatoid arthritis (RA), a chronic inflammatory ... yet known, RA has been linked to an inherited ... occurrence among siblings seems to be random. ... profiles in patients with RA, researchers at the University ...
... a new low-cost system that analyzes scattered laser light ... processing and homeland security at one-tenth the cost of ... Using Optical Scattering Technology - works by shining a ... in a nutrient medium. , "Unlike conventional methods, we ...
... vegetables, the other infecting humans - essentially use the ... the cells of their respective hosts. , That's what ... a study published in the current issue of the ... that the pathogen that causes malaria in humans and ...
Cached Biology News:New genes implicated in rheumatoid arthritis 2Purdue creates new low-cost system to detect bacteria 2Purdue creates new low-cost system to detect bacteria 3Purdue creates new low-cost system to detect bacteria 4Malaria, potato famine pathogen share surprising trait 2
(Date:5/1/2015)... -- A new report by  visiongain  forecasts ... $22.4bn in 2019. That revenue forecast and others appear ... 2015-2025 ,  published in March 2015. ... forecasts and qualitative analyses of the antithrombotic drugs market. ... London, UK . It produces analyses ...
(Date:5/1/2015)... -- According to a new market ... by Type (Monoclonal, Polyclonal), by Technology (Hybridoma), by ... Analysis & Global Forecast to 2019", published by ... Market for the forecast period of 2014 to ... Billion by 2019 from $1.425 Billion in 2014, ...
(Date:4/30/2015)... N.J. , April 30, 2015  Roka Bioscience, ... focused on providing advanced testing solutions for the detection ... results for the first quarter of 2015 on May ... Roka Bioscience will also host a conference ... 2015 to discuss its first quarter financial results. During ...
(Date:4/30/2015)... , April 30, 2015 /PRNewswire/ - BioAmber Inc. (NYSE: ... chemicals, today announced that it has commenced an underwritten public ... to grant the underwriters a 30-day option to purchase ... of common stock offered in the public offering. The ... be no assurance as to whether or when the ...
Breaking Biology Technology:Antithrombotic Drugs: World Industry and Market Prospects 2015-2025 2Antithrombotic Drugs: World Industry and Market Prospects 2015-2025 3Antithrombotic Drugs: World Industry and Market Prospects 2015-2025 4Antithrombotic Drugs: World Industry and Market Prospects 2015-2025 5Antibody Production Market worth $2.572 Billion by 2019 2Antibody Production Market worth $2.572 Billion by 2019 3Antibody Production Market worth $2.572 Billion by 2019 4Roka Bioscience to Report First Quarter 2015 Financial Results On May 7, 2015 2BioAmber Inc. Announces Public Offering Of Common Stock 2BioAmber Inc. Announces Public Offering Of Common Stock 3
... , , NEW ... announces that a new market research report is ... Future of Nutrigenomics: New opportunities in personalized nutrition ... , Nutrigenomics explores how nutrients or bioactive ...
... , ROCKVILLE, Md. , Feb. 16 ... focused on the development and commercialization of clinical-stage products for central ... fourth quarter and full year ended December 31, 2009 . ... for the fourth quarter of 2009, compared to $7.7 ...
... ... partnering with sponsors and CROs , ... Orlando, FL (PRWEB) February 16, 2010 -- Akaza Research is pleased ... 12-14 in Orlando, Florida. The event is being held at the Orlando World Center ...
Cached Biology Technology:Reportlinker Adds The Future of Nutrigenomics: New opportunities in personalized nutrition and food-pharma collaboration 2Reportlinker Adds The Future of Nutrigenomics: New opportunities in personalized nutrition and food-pharma collaboration 3Reportlinker Adds The Future of Nutrigenomics: New opportunities in personalized nutrition and food-pharma collaboration 4Reportlinker Adds The Future of Nutrigenomics: New opportunities in personalized nutrition and food-pharma collaboration 5Reportlinker Adds The Future of Nutrigenomics: New opportunities in personalized nutrition and food-pharma collaboration 6Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2009 Results 2Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2009 Results 3Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2009 Results 4Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2009 Results 5Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2009 Results 6Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2009 Results 7Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2009 Results 8Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2009 Results 9Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2009 Results 10Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2009 Results 11Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2009 Results 12Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2009 Results 13Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2009 Results 14Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2009 Results 15Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2009 Results 16Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2009 Results 17Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2009 Results 18Akaza Research to Present OpenClinica Electronic Data Capture Software at Partnerships in Clinical Trials 2010 2
Mouse monoclonal antibody to PDK2 - pyruvate dehydrogenase kinase, isoenzyme 2...
... expression of an N-terminal FLAG® fusion and ... marker from bicistronic mRNA. Two genes ... for transcription of a single message from ... for protein-protein interaction studies, multi-subunit proteins, and ...
Mouse monoclonal antibody raised against a partial recombinant CALCOCO2. NCBI Entrez Gene ID = CALCOCO2...
Mouse polyclonal antibody raised against a partial recombinant KCTD13. NCBI Entrez Gene ID = 253980...
Biology Products: