Navigation Links
Bacteria reveal secret of adaptation at Evolution Canyon
Date:7/27/2008

Bacteria living on opposite sides of a canyon have evolved to cope with different temperatures by altering the make-up of their 'skin', or cell membranes. Scientists have found that bacteria change these complex and important structures to adapt to different temperatures by looking at the appearance of the bacteria as well as their genes. The researchers hope their study, published in the August issue of Microbiology, will start a new trend in research.

'Evolution Canyons' I and II are in Israel. They are similar, each with a hot south-facing slope and a cooler north-facing slope. The sun-exposed 'African' south-facing slopes get eight times more solar radiation than the shady, green, lush 'European' north-facing slopes. Scientists studied 131 strains of Bacillus simplex and found that bacteria on different slopes have evolved differently, forming different 'ecotypes' of the same species.

"We expected that 'ecotype' formation was linked to temperature but we had no initial clue of which specific cell attributes could have led to the adaptation," said Dr Johannes Sikorski from DSMZ in Germany. "To find out, we definitely had to study the appearance of the bacteria, not only their genes."

The cell membrane is one of the most important and complex parts of a cell. Membranes contain different fatty acid molecules; the branching type can change depending on temperature to keep the cell alive. The researchers found significant differences in the fatty acids of several ecotypes that live on different slopes in Evolution Canyon.

"Bacteria respond to temperature by altering their fatty acid composition in a constitutive, long-term fashion," said Dr Sikorski. We found that 'African' ecotypes from the hot slopes had more heat-tolerant fatty acids and 'European' ecotypes from the cool slopes had more cold-tolerant fatty acids in their membranes."

In most modern evolutionary studies, scientists rely on genetic data alone.
'/>"/>

Contact: Lucy Goodchild
l.goodchild@sgm.ac.uk
44-118-988-1843
Society for General Microbiology
Source:Eurekalert

Page: 1 2

Related biology news :

1. Shuttle brings space-grown strep bacteria back for study
2. The worlds oldest bacteria
3. Bacteria from sponges make new pharmaceuticals
4. Boston University biomedical engineers find chink in bacterias armor
5. University of Leicester scientists discover technique to help friendly bacteria
6. Spaceflight shown to alter ability of bacteria to cause disease
7. A tiny pinch from a z-ring helps bacteria cells divide
8. Legionnaires bacterial proteins work together to survive
9. Scripps research team blocks bacterial communication system to prevent deadly staph infections
10. NSF awards Stevens team $1 million for research on smart, bacteria-repellent nanohydrogels
11. Chemical compound present in detergents produce bacteria alterations in agricultural soils
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/11/2014)... 2014  That blood pressure plays a role in human ... the medical term for high blood pressure – was first ... inflatable cuff that,s used in measuring blood pressure was invented ... new about hypertension, its triggers and its effects. In fact, ... and the best ways to treat it. For ...
(Date:12/10/2014)... You,ve been here before: you desperately need to sign into ... key or the answer to your secret question. What,s your ... Today, Hoyos Labs , a digital infrastructure security ... an end to the frustration that comes with usernames, passwords ... a user,s smartphone to acquire his or her biometrics to ...
(Date:12/10/2014)... , Dec. 9, 2014  Wake Forest Baptist Medical Center ... for its School of Medicine. Funding for this $50 ... campaign that will be publicly launched next summer. ... in the former 60 series R.J. Reynolds Tobacco Company ... Construction will begin immediately with plans to be ready ...
Breaking Biology News(10 mins):Research points to need for new approaches to treatment of high blood pressure 2Research points to need for new approaches to treatment of high blood pressure 3Research points to need for new approaches to treatment of high blood pressure 4The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 3Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 2Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 3Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 4
... Microbes are everywhere thousands of species are in your mouth, ... in your mouth are mostly harmless as long as you ... gum disease a path into the blood stream. Microbes in ... country are also mostly harmless with some notable exceptions. ...
... from the National Cancer Centre Singapore, Duke-NUS Graduate Medical ... University (Thailand), have made a seminal breakthrough in understanding ... a rare but highly lethal form of liver cancer. ... Tan, Steve Rozen, Irinel Popescu and Vajaraphongsa Bhudhisawasdi, used ...
... the first conference of its 2013-2014 meeting season and ... "Advancing Vaccines in the Genomics Era" at the Windsor ... Grand Challenges in Global Health meeting for that program,s ... Symposia Global Health Series, supported by the Bill & ...
Cached Biology News:Virginia Tech researchers explore natural way to displace harmful germs from household plumbing 2Virginia Tech researchers explore natural way to displace harmful germs from household plumbing 3Virginia Tech researchers explore natural way to displace harmful germs from household plumbing 4Singapore scientists expose molecular secrets of bile duct cancers from different countries 2Singapore scientists expose molecular secrets of bile duct cancers from different countries 3Keystone Symposia launches 2013-14 meeting series with first conference in Rio de Janeiro 2
(Date:12/22/2014)... Malvern, PA & Brussels (PRWEB) December 22, 2014 ... Education (CfPIE), the global leader of technical training ... Society for Clinical Data Management (SCDM) to ... training and certification programs —providing access to the ... The partnership extends SCDM members with 10% off when ...
(Date:12/22/2014)... 2014  Alternative Energy & Environmental Solutions, Inc., ... a letter of intent to acquire BioTechPharma Corporation, ... a nanotechnology-based development platform used to create drug ... on-site collection and testing to identify infectious disease, ... an immediate, non-invasive and cost-effective manner. ...
(Date:12/22/2014)... The American Journal of Hematology/Oncology, ... and editorials addressing developments and pathways related to ... provocative article exploring the role of follicle-stimulating hormone ... of prostate cancer. , The article references ... that there could be a connection to prostate ...
(Date:12/19/2014)... Tigard, OR and Hershey, PA (PRWEB) December 19, ... (OTC Pink: BJCT), a leading developer and manufacturer ... has entered into an agreement with Immunomic Therapeutics, ... Bioject’s Biojector®-2000 needle-free injection device with its LAMP™ ... receives an option for an exclusive Worldwide license ...
Breaking Biology Technology:CfPIE Announces Partnership with the Society for Clinical Data Management 2CfPIE Announces Partnership with the Society for Clinical Data Management 3ALNE Announces Intention To Acquire BioTechPharma 2Prostate Cancer Experts Dissect the Role of Follicle-stimulating Hormone in the Development, Progression and Potential Treatment of Prostate Cancer 2Prostate Cancer Experts Dissect the Role of Follicle-stimulating Hormone in the Development, Progression and Potential Treatment of Prostate Cancer 3Prostate Cancer Experts Dissect the Role of Follicle-stimulating Hormone in the Development, Progression and Potential Treatment of Prostate Cancer 4Bioject and Immunomic Therapeutics Enter into an Agreement for License of Needle-Free Technology for LAMP-vax Vaccines 2Bioject and Immunomic Therapeutics Enter into an Agreement for License of Needle-Free Technology for LAMP-vax Vaccines 3
... 13, 2011 PrimeraDx today announced that Jeff Liter ... Development.   "Jeff,s diverse background in all ... to the leadership team," Said Matt McManus, President and ... capabilities of the ICE Plex system in the ...
... a human gene mutation in a patient,s stem cells. ... 12 October, brings the possibility of patient-specific therapies closer ... researchers from the Wellcome Trust Sanger Institute and the ... both cirrhotic liver disease and lung emphysema. Using cutting-edge ...
... Life Technologies Corporation (NASDAQ: LIFE ) ... Sequencing 200 Kit, which enables 200 base pair reads. The ... sequencer that can deliver millions of highly accurate long reads ... after our launch, the speed, simplicity and scalability of ...
Cached Biology Technology:PrimeraDx Appoints Jeff Liter as VP of Corporate Development 2Clean correction of a patient's genetic mutation 2Clean correction of a patient's genetic mutation 3Ion Torrent Gets Better Faster With 4th Qtr New Product Releases 2Ion Torrent Gets Better Faster With 4th Qtr New Product Releases 3Ion Torrent Gets Better Faster With 4th Qtr New Product Releases 4Ion Torrent Gets Better Faster With 4th Qtr New Product Releases 5
... These plastic feeding tubes for rodent ... reduce the risk of perforation and trauma. ... hassle of cleaning and the risk of ... 20ga ...
Barcoded Slides, 5 Packs of 5 Slides (25/Case)...
...
... the 9, 10, 12, and 13 positions. It ... for the quantification of 13(S)-HODE by GC- or ... linoleic acid with plant and mammalian lipoxygenases. It ... tumor cells to the endothelium at concentrations around ...
Biology Products: