Navigation Links
Predatory bacterial swarm uses rippling motion to reach prey
Date:10/29/2008

Oct. 29, 2008

Like something from a horror movie, the swarm of bacteria ripples purposefully toward their prey, devours it and moves on.

Researchers at the University of Iowa are studying this behavior in Myxococcus xanthus (M. xanthus), a bacterium commonly found in soil, which preys on other bacteria.

Despite its deadly role in the bacterial world, M. xanthus is harmless to humans and might one day be used beneficially to destroy harmful bacteria on surfaces or in human infections, said John Kirby, Ph.D., associate professor of microbiology in the UI Roy J. and Lucille A. Carver College of Medicine.

"It may be that we can modify this predator-prey relationship or apply it to medically relevant situations," Kirby said. "It would be amazing if we could adapt its predatory ability to get rid of harmful bacteria that reside in places we don't want them, including in hospitals or on medical implants."

M. xanthus lives in a multi-cellular unit that can change its structure and behavior in response to changing availability of prey.

This adaptive ability to control movement in response to an environmental stimulus is called chemotaxis, and the research team coined the term predataxis to describe M. xanthus behavior in response to prey.

In earlier studies, Kirby and James Berleman, Ph.D., a postdoctoral fellow in Kirby's lab, showed that the presence of prey causes M. xanthus to form parallel rippling waves that move toward and through prey bacteria. Now, how the bacteria organize to form these traveling waves in response to the presence of prey is the subject of the UI team's latest study, which was published online Oct. 24 in Proceedings of the National Academy of Sciences (PNAS) Early Edition.

"When an M. xanthus aggregate is placed inside a colony of E. coli bacteria, the M. xanthus proceeds to eat the colony from the inside out and creates a rippling
'/>"/>

Contact: Jennifer Brown
jennifer-l-brown@uiowa.edu
319-335-9917
University of Iowa
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Fishing ban guards coral reefs against predatory starfish outbreaks
2. Gene against bacterial attack unravelled
3. Study reveals how viruses collectively decide the fate of a bacterial cell
4. New paper sheds light on bacterial cell wall recycling
5. Bacterial persistence in streams
6. A survivor in Greenland: A novel bacterial species is found trapped in 120,000-year-old ice
7. Bacterial slime helps cause serious disease
8. Tomato pathogen genome may offer clues about bacterial evolution
9. Biologists surprised to find parochial bacterial viruses
10. Biochemists reveal details of mysterious bacterial microcompartments
11. Tomato pathogen genome may offer clues about bacterial evolution at dawn of agriculture
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/19/2014)... It,s not a monkey. It,s not a lemur. It,s ... Meet the Philippine tarsier: a tiny, adorable and downright "cool" ... animals that Americans are familiar with," said Rafe Brown, curator-in-charge ... giant eyes and ears; an extremely cute, furry body; a ... interesting expanded fingers and toe tips that look a bit ...
(Date:8/19/2014)... a new implantable tissue scaffold coated with bone growth ... When applied to bone injuries or defects, this coated ... that looks and behaves just like the original tissue. ... dramatic improvement over the current standard for treating bone ... the patient,s body a painful process that does ...
(Date:8/19/2014)... ( Aug. 19, 2014 ) -- Scientists at the ... pick up and transfer single cells using a pipette ... They describe this engineering feat and preliminary test results ... the American Chemical Society . , "Studying single cells ... current biomedical research," said nanomedicine department. faculty member Lidong ...
Breaking Biology News(10 mins):Philippine tarsier gets boost from Kansas research, and genetic proof of a new variety 2Philippine tarsier gets boost from Kansas research, and genetic proof of a new variety 3Engineering new bone growth 2Engineering new bone growth 3Moving single cells around -- accurately and cheaply 2
... NY-- A multinational team of scientists has identified a single gene, ... fruit and seeds of the oil palm are the source of ... provide one of the most promising sources of biofuel. ... high-quality full genome map of the oil palm plant and to ...
... in California,s Central Valley, one of the world,s most ... species miles from farmland. Writing in Environmental Toxicology ... Tree Fogs in remote mountain areas, including national parks; ... by the elements. California,s Central Valley is one ...
... The following statement is being issued by Robbins Geller Rudman & Dowd ... Litigation SUPERIOR COURT OF THE STATE OF CALIFORNIA ... IN RE PACIFIC BIOSCIENCES OF CALIFORNIA , INC. SECURITIES ... OF PROPOSED SETTLEMENT OF CLASS ACTION Hon. Marie S. Weiner ...
Cached Biology News:Full genome map of oil palm indicates a way to raise yields and protect rainforest 2Full genome map of oil palm indicates a way to raise yields and protect rainforest 3Pesticides contaminate frogs from Californian National Parks 2Robbins Geller Rudman & Dowd LLP and Scott+Scott, Attorneys at Law, LLP Announce Proposed Settlement of Class Action in the Pacific Biosciences Securities Litigation 2Robbins Geller Rudman & Dowd LLP and Scott+Scott, Attorneys at Law, LLP Announce Proposed Settlement of Class Action in the Pacific Biosciences Securities Litigation 3Robbins Geller Rudman & Dowd LLP and Scott+Scott, Attorneys at Law, LLP Announce Proposed Settlement of Class Action in the Pacific Biosciences Securities Litigation 4
(Date:8/19/2014)... August 19, 2014 Sales Horizons, a ... its online sales skills training course to ... , MedTech clinical staff spend the majority of their ... standalone medical center, or physician practice – providing support ... why stop there? Sales Horizons believes clinical staff are ...
(Date:8/18/2014)... FREDERICK, Md. , Aug. 18, 2014 ... the maker of advanced consumer medical devices ... Kotak was interviewed by CEOLIVE.TV as ... The entire interview is available at ... interview Dr. Kotak explains to investors the ...
(Date:8/18/2014)... 18, 2014 According to ... Research "Life Science Reagents Market(Products- PCR Reagent Kits, ... In-Vitro Diagnostic Reagents and Others; End Users- Commercial ... Laboratories, and Forensic Laboratories)- Global Industry Analysis, Size, ... the global life science reagents market was valued ...
(Date:8/18/2014)... China is increasingly being recognized ... research industry. Clinicaltrial.gov statistics highlight the popularity of ... population; a high increase in infectious diseases; a ... pool of patients and a track record of ... China also presents challenges for the clinical research ...
Breaking Biology Technology:Sales Horizons Launches a New Online Sales Training Course for MedTech Clinical Staff to Develop Their Sales Skills 2Sales Horizons Launches a New Online Sales Training Course for MedTech Clinical Staff to Develop Their Sales Skills 3BioElectronics EVP Dr. Deepak Kotak Interviewed on CEO Live 2BioElectronics EVP Dr. Deepak Kotak Interviewed on CEO Live 3Global Life Science Reagents Market Expected to Reach USD 25.7 Billion in 2019: Transparency Market Research 2Global Life Science Reagents Market Expected to Reach USD 25.7 Billion in 2019: Transparency Market Research 3Global Life Science Reagents Market Expected to Reach USD 25.7 Billion in 2019: Transparency Market Research 4Global Life Science Reagents Market Expected to Reach USD 25.7 Billion in 2019: Transparency Market Research 5China – Land of Opportunities & Challenges for the Clinical Research Industry, New Webinar Hosted by Xtalks 2
... March 20 On Wednesday, April 29, 2009, Wyeth (NYSE: ... 2009 first quarter. The Company will hold a forty-five minute ... on April 29, 2009. Interested investors and others may ... through our Internet webcast, which may be accessed by visiting ...
... Solos Endoscopy, Inc. (Pink Sheets: SNDY) is pleased ... agreement with Lifeline Biotechnologies, Inc. (Pink Sheets: LLBO) ... to Lifeline Biotechnologies for a combination of stock, ... Endoscopy originally purchased the products from Lifeline Biotechnologies ...
... has shown that certain marginalized groups including the ... African Americans and Latinos fare worse than others ... injuries and fatalities. , Now, a ... that they also experience greater terrorism-related fears and make ...
Cached Biology Technology:Wyeth Sets Webcast and Conference Call for 2009 First Quarter Earnings 2Solos Endoscopy, Inc. Sells Ovascope and Mastascope Product Line to Lifeline Biotechnologies, Inc. 2Disabled and other vulnerable groups more susceptible to terrorism fears 2
Negative Control, eluted and packaged aseptically in 20l of 10mM Tris-HCL, pH 8.0, 1 mM EDTA, 5 years at either 4°C or -20°C...
AdestaTM Tissue/Cell Preservation Medium Sterile / Non-sterile: Sterility Tested Endotoxin: ...
...
... Clone/PAD: ZMD.440. Immunogen: Synthetic peptide derived ... PDGF-D (platelet derived growth factor D iris-expressed ... which differs from mouse and rat by ... with the ~50 kDa human mouse and ...
Biology Products: