Navigation Links
Poison: It's what's for dinner
Date:4/5/2009

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. Excellence in open access research celebrated at BioMed Central awards dinner
2. 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:1/22/2015)... Jan. 16, 2015  A man-made form of insulin delivered ... mental capabilities in adults with mild cognitive impairment and ... by researchers at Wake Forest Baptist Medical Center. ... amnesic mild cognitive impairment (MCI) or mild to moderate ...
(Date:1/22/2015)... Jan. 21, 2015  Analyst Report Issued by Small Cap IR. ... showed that planet-wide, transactions at merchants on the leading payment ... number of credit, debit, and prepaid cards reached 6.54 billion.  ... of fraudulent card usage in 2012, and credit and debit ...
(Date:1/22/2015)... Inc. , a market leader of iris-based identity authentication solutions, ... the new role of Senior Vice President of Mobile and ... platforms and wearable solutions for EyeLock,s technologies. Gerber brings more ... industry to his role at EyeLock, with expertise in human ...
Breaking Biology News(10 mins):Nasal Spray with Insulin Equivalent Shows Promise as Treatment for Adults with Mild Cognitive Impairment, Alzheimer's Dementia 2Nasal Spray with Insulin Equivalent Shows Promise as Treatment for Adults with Mild Cognitive Impairment, Alzheimer's Dementia 3$4.80 Near Term Price Target with "Buy" given by CapRock Research for NXT-ID, Inc. (NASDAQ: NXTD) issued by Small Cap IR 2EyeLock Names Steve Gerber as Senior Vice President of Mobile and Wearables 2
... ORLANDO, Fla. The American Association for Cancer Research ... Caring for Carcinoid Foundation-AACR Grants for Carcinoid Tumor and ... Beverly Sackler AACR Fellowships for Ileal Carcinoid Tumor Research. ... the Caring for Carcinoid Foundation (CFCF) and the Raymond ...
... at Marshall University is conducting research that may someday lead ... Dr. Elmer M. Price, who heads the research team ... his group has identified and analyzed unique adult animal stem ... neurons they found appear to have many of the qualities ...
... A prototype scanner aboard the international space station has been ... months since it was launched, providing scientists with a new ... from oil spills to plankton blooms. The images and ... world through an online clearinghouse coordinated by Oregon State University. ...
Cached Biology News:Scientists awarded carcinoid tumor and pancreatic neuroendocrine tumor research grants 2Scientists awarded carcinoid tumor and pancreatic neuroendocrine tumor research grants 3Data streaming in from Space Station to OSU lab 2Data streaming in from Space Station to OSU lab 3
(Date:12/24/2014)... December 23, 2014 SoundConnect’s ... to introduce cutting edge communication technology, provide continued ... upgrades. This webinar series demonstrates online communication features ... leverage web conferencing’s most innovative and powerful tools. ...
(Date:12/24/2014)... 23, 2014 According to Ross Selinger, President ... of ITRA Global, the national office market continues to be ... This is evidenced by the third quarter’s surprising 3.9% GDP, ... Low energy costs have held inflation down and the Fed ...
(Date:12/24/2014)... 2014 Nashville Fertility Center announced that ... American Society for Reproductive Medicine (ASRM), a leading professional organization ... In his new role as treasurer, Dr. Hill also fills ... voice in furthering the mission of ASRM. , Dr. ...
(Date:12/24/2014)... San Diego, CA (PRWEB) December 23, 2014 ... where their Twitter followers can submit their #HolidayInTheLab pictures for ... lab mates. , For those struggling to think of a ... in the Lab Contest provides the ideal holiday presents. The ...
Breaking Biology Technology:SoundConnect Launches Leading Edge Business Communications Webinar Series 2SoundConnect Launches Leading Edge Business Communications Webinar Series 3ITRA Global Reports Long Island Is Out of Sync With The National Office Market 2ITRA Global Reports Long Island Is Out of Sync With The National Office Market 3Nashville Fertility Center Announces Dr. George A. Hill Selected to Serve as ASRM Treasurer for 2014-15 2Nashville Fertility Center Announces Dr. George A. Hill Selected to Serve as ASRM Treasurer for 2014-15 3Major Pipette Distributor Pipette.com Announces their Holiday in the Lab Contest 2
... -- Shandong Zhouyuan Seed,and Nursery Co., Ltd. (OTC ... incorporated in the State of Delaware, announced,that its ... and,Nursery Co., Ltd. ("Zhouyuan" or "the Company"), had ... Kun Yuan Seeds Co., Ltd. ("Kun Yuan") on,August ...
... 2007, SAN DIEGO, Sept. 17 Neurocrine ... Neurocrine Biosciences will,present at the A.G. Edwards Annual ... September 19, 2007 at 1:30 p.m. Eastern,Time (ET) ... be,simultaneously webcast and may be accessed on the ...
... Conn., Sept. 17 Diageo (NYSE: DEO ),the ... to announce,its sponsorship of a physician,s training program in ... of the State of,New York (MSSNY). The program, ... developed to better prepare physicians to address and assess ...
Cached Biology Technology:Shandong Zhouyuan Seed and Nursery Co., Ltd. Signs an Agreement with Linyi Company 2Shandong Zhouyuan Seed and Nursery Co., Ltd. Signs an Agreement with Linyi Company 3Diageo Sponsors Medical Society of the State of New York's Physicians Training Program 2Diageo Sponsors Medical Society of the State of New York's Physicians Training Program 3
Curcumin is an extract of turmeric root with antioxidant, anti-tumor promoter, and anti-inflammatory properties. Curcumin inhibits the induction of NOS in macrophages....
... RNAi Kit is optimized for ... amounts of ready-to-use dsRNA for ... The MEGAscript RNAi Kit is ... transcription technol-ogy and includes reagents ...
Total Proteins from over 50 different human Alzheimer, Diabetic, Liver Cirrhosis, and Lupus diseased tissues are available....
... Using its actuators as building ... customized work cell-level ,robotic solutions that ... applications. Beyond the base ,system, Parker ... vacuum cups, custom structures, and ,guarding., ...
Biology Products: