Navigation Links
Scientists discover 'dancing' algae
Date:4/20/2009

Scientists at the Cambridge University have discovered that freshwater algae can form stable groupings in which they dance around each other, miraculously held together only by the fluid flows they create. Their research was published today in the journal Physical Review Letters.

The researchers studied the multicellular organism Volvox, which consists of approximately 1,000 cells arranged on the surface of a spherical matrix about half a millimetre in diameter. Each of the surface cells has two hair-like appendages known as flagella, whose beating propels the colony through the fluid and simultaneously makes them spin about an axis.

The researchers found that colonies swimming near a surface can form two types of "bound states"; the "waltz", in which the two colonies orbit around each other like a planet circling the sun, and the "minuet", in which the colonies oscillate back and forth as if held by an elastic band between them.

The researchers have developed a mathematical analysis that shows these dancing patterns arise from the manner in which nearby surfaces modify the fluid flow near the colonies and induce an attraction between them. The observations constitute the first direct visualisations of the flows, which have been predicted to produce such an attraction. They have been implicated previously in the accumulation of swimming microorganisms such as bacteria and sperm cells near surfaces.

These findings also have implications for clustering of colonies at the air-water interface, where these recirculating flows can enhance the probability of fertilization during the sexual phase of their life cycle.

Professor Raymond E. Goldstein, the Schlumberger Professor of Complex Physical Systems in the Department of Applied Mathematics and Theoretical Physics (DAMTP) and lead author of the study, said: "These striking and unexpected results remind us not only of the grace and beauty of life, but also that
'/>"/>

Contact: Genevieve Maul
genevieve.maul@admin.cam.ac.uk
44-122-333-2300
University of Cambridge
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Gladstone scientists uncover potential mechanism of memory loss in Alzheimers disease
2. Three Studies by Independent Scientists Highlighting Pressure Cycling Technology (PCT) to be Presented this Week at the British Mass Spectrometry Societys 29th Annual Meeting
3. Social Network for Scientists Marks Ten Years Online
4. Scientists synthesize memory in yeast cells
5. Scientists synthesize memory in yeast cells
6. University of Leicester scientists discover technique to help friendly bacteria
7. Scientists discover how cancer may take hold
8. Yale scientists make 2 giant steps in advancement of quantum computing
9. New Scientists Boost Disease-based Research at Boston Biomedical Research Institute
10. Scientists say sabercat bit like a pussycat
11. New Corporate Website Launched - Focus on Life Scientists, Flow Cytometrists, & Clinicians
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/27/2015)... March 27, 2015  Peter Walter was chosen as ... his pioneering work on how proteins are transported between ... regulatory mechanism that cells use to handle stress tied ... a professor of biochemistry at the University of California, ... a range of human diseases related to defective protein ...
(Date:3/27/2015)... York (PRWEB) March 27, 2015 Governor ... 2015 application period for 43North - the world’s largest ... including a grand prize of $1 million, six $500,000 ... from around the world to compete for prizes that ... enterprises in the Western New York region. , ...
(Date:3/26/2015)... The Market Element LLC, a leading ... with Designing Gig LLC to provide website design, development, ... “Forging this alliance with Designing Gig represents a pivotal ... a comprehensive, end-to-end, digital solution for our clients, which ... Chuck Miller, president of The Market Element. “For small ...
(Date:3/26/2015)... 2015 PAREXEL International Corporation (Nasdaq: ... research organization , announced today that the ... acquire all of the business assets of privately-owned ... of specialized pharmacovigilance services, based in Chandigarh, ... assessment, monitoring, and prevention of adverse effects ...
Breaking Biology Technology:German-born cell biologist Peter Walter wins the 2015 Vilcek Prize in Biomedical Science 2German-born cell biologist Peter Walter wins the 2015 Vilcek Prize in Biomedical Science 3Governor Andrew M. Cuomo Anounces Launch of Year Two of World's Largest Business Idea Competition and Opening of New Incubator Space in Buffalo, New York 2Governor Andrew M. Cuomo Anounces Launch of Year Two of World's Largest Business Idea Competition and Opening of New Incubator Space in Buffalo, New York 3Governor Andrew M. Cuomo Anounces Launch of Year Two of World's Largest Business Idea Competition and Opening of New Incubator Space in Buffalo, New York 4Governor Andrew M. Cuomo Anounces Launch of Year Two of World's Largest Business Idea Competition and Opening of New Incubator Space in Buffalo, New York 5The Market Element LLC and Designing Gig LLC Form Strategic Alliance 2PAREXEL Announces Execution of Definitive Agreement to Acquire Quantum Solutions India, Strengthening Leadership In Pharmacovigilance Services 2PAREXEL Announces Execution of Definitive Agreement to Acquire Quantum Solutions India, Strengthening Leadership In Pharmacovigilance Services 3PAREXEL Announces Execution of Definitive Agreement to Acquire Quantum Solutions India, Strengthening Leadership In Pharmacovigilance Services 4
... 2012  AnaptysBio, Inc., a privately-held therapeutic antibody ... strategic alliances with two partners: Novartis and ... alliance announced today with Novartis is AnaptysBio,s ... and follows an initial partnership where AnaptysBio ...
... in the human body is moved by its strongest muscles: ... enormous strengths are working on the surface of our teeth. ... for dentures, inlays or bridges", glass chemist Prof. Dr. Dr. ... After all, these are worn as much as healthy teeth. ...
... Sangamo BioSciences, Inc. (Nasdaq: SGMO ) announced today ... update on the progress of Sangamo,s ZFP Therapeutic® development programs ... am PT (10:30 am ET) on Thursday, January 12, 2012, ... be held in San Francisco. The presentation will ...
Cached Biology Technology:AnaptysBio Announces New Strategic Antibody Discovery 2AnaptysBio Announces New Strategic Antibody Discovery 3Nanocrystals make dentures shine 2Sangamo BioSciences Announces Presentation at J.P. Morgan Healthcare Conference 2
(Date:3/24/2015)... DUBLIN , Mar. 24, 2015 Research and Markets ... "Face and Voice Biometrics - Global Strategic Business Report" report ... for Face and Voice Biometrics in US$ Thousands by the following ... analytics for the US, Canada , ... , Middle East & ...
(Date:3/24/2015)... GARDENS, Fla. , March 24, 2015 /PRNewswire/ ... identity management solutions, today announced that its U.are.U ... clothing accessory retailer Goorin Bros . to ... Crossmatch biometrics-based solution secures access to the POS ... the increased risk of data breaches. ...
(Date:3/23/2015)... 23, 2015   HOYOS Labs , a leading ... announced that the Company will demonstrate multiple biometrics-based technologies ... consumers at Connect:ID on March 23 through 25, 2015, ... will highlight the IEEE Biometric Open Protocol Standard; free ... enterprise access control system. BOPS was invented by HOYOS ...
Breaking Biology News(10 mins):Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 2Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 3Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 4Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 5Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 6Crossmatch Fingerprint Readers Help Retailer Prevent Data Breaches at Point-of-Sale 2HOYOS Labs to Showcase Host of Biometrics Technologies at Connect:ID in Washington, D.C. 2HOYOS Labs to Showcase Host of Biometrics Technologies at Connect:ID in Washington, D.C. 3
... the University of California, San Diego, have found that ... patterns of fur coloration that camouflage mice against their ... this week in the journal PLoS Biology, marks one ... have been linked to an organism,s ability to survive ...
... Researchers at Rensselaer Polytechnic Institute have developed a new ... a simple sheet of black paper. The nanoengineered ... toward meeting the trickiest design and energy requirements of ... Along with its ability to function in temperatures up ...
... Not all patients with sepsis mount the same immune ... to findings from the first large-scale natural history study ... School of Medicine researchers in the August 13/27 issue ... interpretations of how the immune system responds to infection ...
Cached Biology News:Interaction of just 2 genes governs coloration patterns in mice 2Beyond batteries: Storing power in a sheet of paper 2Beyond batteries: Storing power in a sheet of paper 3Study begins to reveal clues to the cause and progression of sepsis 2Study begins to reveal clues to the cause and progression of sepsis 3