Navigation Links
Bacterial biofilms as fossil makers
Date:11/24/2008

BLOOMINGTON, Ind. -- Bacterial decay was once viewed as fossilization's mortal enemy, but new research suggests bacterial biofilms may have actually helped preserve the fossil record's most vulnerable stuff -- animal embryos and soft tissues.

A team of 13 scientists led by Indiana University Bloomington biologists Rudolf and Elizabeth Raff found that the invasion of dying embryo cells by bacteria -- and the subsequent formation of densely packed bacterial biofilms inside the embryo cells -- can completely replace embryo cell structure, generating a faithful replica of the embryo. The scientists call this formation a "pseudomorph," a model of the embryo made of bacteria. Their report will appear online via the Proceedings of the National Academy of Sciences "Early Edition" as early as Nov. 24.

"The bacteria consume and replace all the cytoplasm in the cells, generating a little sculpture of the embryo," said Elizabeth Raff, the report's lead author. "We did find, however, that certain conditions must be met if the bacteria are going to aid the preservation process."

Among those conditions, Raff said that at the time of its death, the embryo must exist in a low-oxygen or reducing environment, such as the bottom of a deep ocean or buried in anoxic lakeside mud. If significant oxygen is available, the embryo will undergo "autolysis," or self-destruction, as digestive enzymes get free and wreak havoc. Without oxygen, autolytic enzymes remain stuck inside their organelle prisons.

"The next step, we believe, is that bacteria able to survive in low-oxygen conditions must then infest the cells of the dying embryo," Raff said.

The bacteria form biofilms, crowded assemblies of bacterial cells held together by sticky fibers made of proteins and sugars. As the biofilms fill the embryo cells, the tiny bacteria insinuate themselves between and among the organelles, forming a faithful representation of the cell's innards.'/>"/>

Contact: David Bricker
brickerd@indiana.edu
812-856-9035
Indiana University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Legionnaires bacterial proteins work together to survive
2. Scripps research team blocks bacterial communication system to prevent deadly staph infections
3. Small RNA plays parallel roles in bacterial metabolism
4. New drug targets may fight tuberculosis and other bacterial infections in novel way
5. Bacterial infections in premature babies more common than previously realized
6. Tomato pathogen genome may offer clues about bacterial evolution at dawn of agriculture
7. Biochemists reveal details of mysterious bacterial microcompartments
8. Biologists surprised to find parochial bacterial viruses
9. Tomato pathogen genome may offer clues about bacterial evolution
10. Bacterial slime helps cause serious disease
11. A survivor in Greenland: A novel bacterial species is found trapped in 120,000-year-old ice
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Bacterial biofilms as fossil makers
(Date:4/17/2014)... ALBUQUERQUE, N.M. A credit-card-sized anthrax detection cartridge developed ... small business makes testing safer, easier, faster and cheaper. ... causes anthrax, is commonly found in soils all over ... illness in both humans and animals. The bacteria can ... to B. anthracis may occur through skin ...
(Date:4/17/2014)... A Kansas State University engineer has developed a ... detects improvised explosive devices. The same technique could ... the Steven M. and Kay L. Theede chair ... nuclear engineering, and his research team have created ... or in car trunks. The distance detection method ...
(Date:4/17/2014)... Clemson professor Rajendra Singh Thursday as a "Champion ... expand solar deployment in the residential, commercial and ... Professor of Electrical and Computer Engineering and director ... a local hero leading the charge across the ... solar power and driving policy changes at the ...
Breaking Biology News(10 mins):Pocket-sized anthrax detector aids global agriculture 2Pocket-sized anthrax detector aids global agriculture 3Patented research remotely detects nitrogen-rich explosives 2White House honors Clemson professor as 'Champion of Change' for solar deployment 2
... at the recent United Nations meeting emphasized nutrition as ... of State Hillary Clinton said a key focus is ... of Missouri nutrition experts say getting back to basics ... families and communities in many ways. As ...
... to be met is a significant increase in the use ... to grow in the future, because biomass is used in ... and various types of materials. The planning of biomass usage ... gap between what is included in countries, and regions, current ...
... Clemson University researchers recently reported finding a new class ... how cells repair damaged DNA. The finding from Cao,s ... with computational chemist Brian Dominy appeared in the Sept. ... "A new family of deamination repair enzymes in ...
Cached Biology News:Eating balanced meals, farm-fresh produce benefits families, communities, nutrition researchers say 2Better planning required if EU is to meet energy targets 2Clemson University biochemists identify new genetic code repair tool 2
(Date:1/15/2014)... January 15, 2014 A study has been ... the Formula 1 track could help to tackle the problem ... (MAT), Stowhealth (a GP surgery based in Stowmarket) and academics ... Simplyhealth. Telemetry technology, which is inspired by equipment ...
(Date:1/15/2014)... Rochester, NY (PRWEB) January 15, 2014 The ... cause a major disease. One of these latent viruses is ... is rheumatoid arthritis (RA). Rheumatoid arthritis (RA) is a chronic ... the theory, a study found that RA patients have high ...
(Date:1/15/2014)... Freeslate, Inc ., the leading ... Lupin Limited, one of India’s top five pharmaceutical companies, ... System for high throughput solid form screening. ... a wide range of quality, affordable generic and branded ...
(Date:1/14/2014)... (PRWEB) January 14, 2014 Date: Friday, April ... Location: Warrington Country Club, 1360 Almshouse Road, Warrington, Pa. ... nonprofit organization solely dedicated to finding a cure for hepatitis ... worldwide, will host its annual Crystal Ball on Friday, April ...
Breaking Biology Technology:Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 2Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 4Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 3Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 2Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 3Hepatitis B Foundation to Host Annual Crystal Ball Gala 2
... and OSAKA, Japan, May 18, 2011 Cellectis ... genome customization specialist, has appointed Wako Pure Chemical ... Company,s broad portfolio of research products and services, ... Chemical Industries is a leading distributor of research ...
... SAN JOSE, Calif., May 18, 2011 Oclaro, Inc. ... optical communications and laser solutions, today announced that its ... by Pantec Biosolutions, the leading provider of epidermal medical ... Laser Epidermal System) platform. This cutting-edge new laser platform ...
... May 17, 2011 New data presented today ... moderate to severe chronic prostatitis/chronic pelvic pain syndrome ... meeting of the American Urological Association, RAPAFLO(R) also ... of life. Chronic prostatitis/chronic pelvic pain ...
Cached Biology Technology:Cellectis bioresearch Appoints Wako as Exclusive Distributor of its Genome Customization Solutions in Japan 2Pantec Biosolutions Selects Oclaro Laser Diode Bars for Transdermal Drug Delivery and Tissue Ablation Systems 2Pantec Biosolutions Selects Oclaro Laser Diode Bars for Transdermal Drug Delivery and Tissue Ablation Systems 3Pantec Biosolutions Selects Oclaro Laser Diode Bars for Transdermal Drug Delivery and Tissue Ablation Systems 4Watson Pharmaceuticals Announces New Research Showing RAPAFLO(R) (silodosin) Improves Outcomes for Chronic Prostatitis/Chronic Pelvic Pain Syndrome 2Watson Pharmaceuticals Announces New Research Showing RAPAFLO(R) (silodosin) Improves Outcomes for Chronic Prostatitis/Chronic Pelvic Pain Syndrome 3Watson Pharmaceuticals Announces New Research Showing RAPAFLO(R) (silodosin) Improves Outcomes for Chronic Prostatitis/Chronic Pelvic Pain Syndrome 4Watson Pharmaceuticals Announces New Research Showing RAPAFLO(R) (silodosin) Improves Outcomes for Chronic Prostatitis/Chronic Pelvic Pain Syndrome 5Watson Pharmaceuticals Announces New Research Showing RAPAFLO(R) (silodosin) Improves Outcomes for Chronic Prostatitis/Chronic Pelvic Pain Syndrome 6
Component of HyperMu™ Insertion Kit...
Request Info...
... x 2 , Maintenance ... /each , Immunizations/Boost injections x5 ... ml) x1 /each , Production bleed ... Final Bleed ~ 100 ml blood (~50 ml ...
... 500 g protein in ... mouse whole cell lysate; Abelson transformed macrophage ... as Western blotting positive control, ... and thawing should be minimized, ...
Biology Products: