Navigation Links
Poison: It's what's for dinner
Date:4/18/2009

SALT LAKE CITY As the U.S. Southwest grew warmer from 18,700 to 10,000 years ago, juniper trees vanished from what is now the Mojave Desert, robbing packrats of their favorite food. Now, University of Utah biologists have narrowed the hunt for detoxification genes that let the rodents eat toxic creosote bushes that replaced juniper.

"It was either eat it or move out," says biology Professor Denise Dearing, senior author of the study, published online Tuesday, April 7 in the journal Molecular Ecology.

During the study, eight packrats also known as woodrats were captured from each of two western regions: the Mojave Desert and the cooler Great Basin. Rats from both areas were fed rabbit chow mixed either with creosote or juniper. The scientists then scanned the rodents' genetic blueprints to look for active genes known as "biotransformation genes" because they produce liver enzymes to detoxify the poisons in creosote and the less-toxic juniper.

"We found 24 genes in woodrats from the Mojave Desert that could be key in allowing them to consume leaves from creosote bushes," she says. "The leaves are coated with a toxic resin that can comprise up to 24 percent of the dry weight of the plant."

Dearing says she conducted the study because "we don't really understand how wild animals process their diets, and how herbivores can feed on really toxic diets. If we can understand it, we may be able to understand how they will deal with climate change."

For example, "the toxins in creosote could respond to increases in [atmospheric] carbon dioxide," which causes global warming, she adds. "The plants may make more toxins under elevated CO2 conditions because these toxins are built from carbon atoms."

Dearing says once the actual creosote-detoxification genes are pinpointed among the 24 candidates identified by the new study, those genes someday might be used to modify cattle, sheep or other grazing animals
'/>"/>

Contact: Lee Siegel
leesiegel@ucomm.utah.edu
801-581-8993
University of Utah
Source:Eurekalert  

Page: 1 2 3 4 5

Related biology news :

1. Poison: Its whats for dinner
2. Excellence in open access research celebrated at BioMed Central awards dinner
3. Dinner, lecture series to honor legacy of distinguished UH professor
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Poison: It's what's for dinner
(Date:7/10/2014)... , July 3, 2014 Research ... addition of the "Global Gesture Recognition & ... - Forecasts to 2020" report to their ... Global Gesture Recognition & Touch-Less Sensing Market ... around for a while, but the companies were ...
(Date:7/10/2014)... 2014 According to a new ... Control Systems Market Global Forecast, Market Share, Size, Growth ... Access Control systems market was valued at USD 15,406.1 ... a CAGR of 12.6% from 2014 to 2019, to ... 2019. Browse the full Electronic Access Control ...
(Date:7/10/2014)... 2014  Acuity Market Intelligence today released forecasts from "The ... that the global market for National Electronic ID (eID) programs ... During this time, the number of National eID cards in ... Asia , with its vast population, will dominate ... issued, while Europe trails a distant ...
Breaking Biology News(10 mins):Global Gesture Recognition & Touch-Less Sensing (2D, 3D, Ultrasonic, IR, Capacitive) Market - Forecasts to 2020 2Electronic Access Control Systems Market is Expected to Reach USD 31.2 Billion Globally in 2019: Transparency Market Research 2Electronic Access Control Systems Market is Expected to Reach USD 31.2 Billion Globally in 2019: Transparency Market Research 3Electronic Access Control Systems Market is Expected to Reach USD 31.2 Billion Globally in 2019: Transparency Market Research 4Electronic Access Control Systems Market is Expected to Reach USD 31.2 Billion Globally in 2019: Transparency Market Research 5National Electronic ID Programs Generate $54 Billion Between 2013 and 2018 with 3.5 Billion National eID Card Holders Worldwide 2
... at Oregon State University has used a new method ... in Oregon with high numbers of methamphetamine-related problems per ... illegal drug. The study, presented today at a ... then identified five counties with the most meth-linked incidents ...
... PHILADELPHIA (September 15, 2008) More than 30 years ... of cancer genetics by showing that a person must ... particular class of cancer-inhibiting genes, called tumor-suppressor genes, in ... hypothesis, guided scientists around the globe in their quest ...
... (MGH) and Harvard Medical School investigator Gary Ruvkun, PhD, is ... Basic Medical Research. Presented by the Albert and Mary ... version of the Nobel Prize, and many Lasker recipients have ... be presented in New York on Friday, Sept. 26. ...
Cached Biology News:New method identifies meth hot spots 2New method identifies meth hot spots 3'1-hit' event provides new opportunity for colon cancer prevention, say Fox Chase researchers 2MGH researcher Gary Ruvkun named a co-recipient of the Lasker Award 2MGH researcher Gary Ruvkun named a co-recipient of the Lasker Award 3
(Date:7/10/2014)... (PRWEB) July 10, 2014 Unraveling life’s ... together. The Archer Family purchased a DNA ... DNA, but ended up with a lifetime of memories, ... within the family members’ DNA genuinely brought the family ... to search deeper into genetic history and prior to ...
(Date:7/10/2014)... 10, 2014 Senior supply chain management ... associations, addressed the challenges of “Reducing Cost, Lead Time, ... through strategic sourcing. Describing the partnership of the Bio ... Chain Management Institute ( SCMI) of the University ... 24 at the Kroc Institute of Peace and Justice ...
(Date:7/10/2014)... 2014 /PRNewswire-iReach/ -- Tute Genomics, the leader ... an agreement with Lineagen, Inc., to provide ... Dx PLUS.  Lineagen, focused on the ... currently offers FirstStep Dx PLUS, a ... by healthcare providers as a first-line genetic ...
(Date:7/10/2014)... University of Adelaide research may help in the fight ... can detect tiny quantities of explosives with the use ... the journal Sensors and Actuators B: Chemical , ... can detect explosives in concentrations as low as 6.3 ... of only a few minutes. , "Traditionally explosives detection ...
Breaking Biology Technology:Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 2Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 3Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 4Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 5Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 2Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 3Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 4Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 2Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 3Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 4Detecting trace amounts of explosives with light 2
... Doping may be a no-no for athletes, but researchers ... was key in getting unprecedented power conversion efficiency from ... Graphene solar cells are one of industry,s great ... future. But previous attempts to use graphene, a single-atom-thick ...
... 25, 2012  Oncobiologics, Inc. announced today that it ... biopharmaceutical industry experts. Stephen J. McAndrew, Ph.D. is ... Benn, Ph.D. has joined the company as Vice ... announced its new Scientific Advisory Board, which will ...
... 24, 2012  For years, doctors and microbiologists have sent ... body for examination. These tests take days to get ... Donald Spector, a well-known, serial entrepreneur-inventor and Chairman of ... few institutionally accredited schools of Acupuncture and Massage Therapy ...
Cached Biology Technology:University of Florida physicists set new record for graphene solar cell efficiency 2Oncobiologics Fills Key Leadership Positions and Names Scientific Advisory Board 2Oncobiologics Fills Key Leadership Positions and Names Scientific Advisory Board 3College Chairman And Prolific Inventor Develops Life-Saving, Real-Time Diagnostic Technologies 2College Chairman And Prolific Inventor Develops Life-Saving, Real-Time Diagnostic Technologies 3
Request Info...
... include: ,ICC and IHC Protocol Development ... ,Antibody Screenings in Animal or Human ... of Cells and Tissues ,Peroxidase, Alkaline ... Fluorescent, or Electron Microscopy ,Protein Localization ...
Request Info...
Request Info...
Biology Products: