Navigation Links
How plants fine tune their natural chemical defenses
Date:9/7/2008

LA JOLLA, CA Even closely related plants produce their own natural chemical cocktails, each set uniquely adapted to the individual plant's specific habitat. Comparing anti-fungals produced by tobacco and henbane, researchers at the Salk Institute for Biological Studies discovered that only a few mutations in a key enzyme are enough to shift the whole output to an entirely new product mixture. Making fewer changes led to a mixture of henbane and tobacco-specific molecules and even so-called "chemical hybrids," explaining how plants can tinker with their natural chemical factories and adjust their product line to a changing environment without shutting down intracellular chemical factories completely.

The findings not only gave the Salk scientists a glimpse of the plants' evolutionary past, but may help them fine-tune the production of natural and environmentally friendly fungicides and pesticides as well as new flavors and fragrances by turning "enzymatic knobs" in the right direction.

Trying to make the best of their real estate, plants rely on an impressive arsenal of volatile and nonvolatile molecules, which diffuse easily through the membranes of the cells that produce them to communicate and interact with the outside world. Often highly aromatic and exceedingly specific for a particular ecological niche, these chemicals attract pollinators, summon natural predators of pests, defend against competitors or, through their antimicrobial properties, protect against natural plant pathogens such as fungi and bacteria.

"Most people are familiar with the word biodiversity, but 'chemodiversity,'the extraordinary tapestry of natural chemicals found in plantsis just as important for life, the appearance of new species and the survival of many different ecosystems on the earth," says Howard Hughes Medical Institute investigator Joseph P. Noel, Ph.D, director of the Jack H. Skirball Center for Chemical Biology and Proteomics, who led the stud
'/>"/>

Contact: Gina Kirchweger
Kirchweger@salk.edu
858-453-4100 x1340
Salk Institute
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. NC State first university in nation to offer canine bone marrow transplants
2. Bitter-tasting nectar and floral odors optimize outcrossing for plants
3. Ikaria(R) Receives FDA Orphan Drug Designation for Inhaled Carbon Monoxide for Delayed Graft Function in Solid Organ Transplants
4. UGA gets $2.5 million in grants to study plants to make biofuels
5. Tel Aviv University researchers root out new and efficient crop plants
6. Ikaria(R) Receives FDA Orphan Drug Designation for Inhaled Carbon Monoxide for Delayed Graft Function in Solid Organ Transplants
7. UT Knoxville professor finds unexpected key to flowering plants diversity
8. U of T discovers environmental factors linked to sex ratio of plants
9. New study finds that some plants can adapt to widespread climate change
10. Plants in the fourth dimension
11. Mate choice in plants
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/16/2014)... NXT-ID, Inc. (NASDAQ: NXTD ... company focused on the growing mobile commerce market announces ... the Smart Wallet, at the 13 th annual ... global conference on the intersection of technology and the ... , founder and publisher of the Strategic News Service™, ...
(Date:10/15/2014)... rapidly and to an unexpected extent. The outbreak does ... the virus shows a new disease dynamic in regions, ... reason, the German National Academy of Sciences Leopoldina, acatech ... the Union of the German Academies of Sciences and ... today. , In the statement the academies call for ...
(Date:10/14/2014)... – Like discriminating thieves, prostate cancer tumors scavenge and ... body. But such avarice may be a fatal weakness. ... way to kill prostate cancer cells by delivering a ... destroys the diseased cells brimming with the mineral, leaving ... two drugs already commercially available for other uses, could ...
Breaking Biology News(10 mins):NXT-ID Inc. to Present at 13th Annual FiRe Conference 2NXT-ID Inc. to Present at 13th Annual FiRe Conference 3Academies call for consequences from the Ebola virus epidemic 2Academies call for consequences from the Ebola virus epidemic 3Academies call for consequences from the Ebola virus epidemic 4Academies call for consequences from the Ebola virus epidemic 5Prostate cancer's penchant for copper may be a fatal flaw 2
... new study led by the Wildlife Conservation Society and Zoological ... the Sahara, has suffered a catastrophic collapse of its wildlife ... representing 28 scientific organizations assessed 14 desert species and found ... confined to one percent or less of their historical range. ...
... and described a new species of wild eggplant, found in ... cowiei , recently detailed his findings in the journal ... "gender bending," and explained that the females actually pretend to ... doing is duping bees into visiting their flowers," Martine said. ...
... ALEXANDRIA, Va.December 3, 2013Nearly two-thirds (65%) of Americans ... shutdown in the months ahead as Congress continues ... a new national public opinion poll commissioned by ... sentiment is shared across party affiliations: Democrats (66%), ...
Cached Biology News:Study documents catastrophic collapse of Sahara's wildlife 2Unlikely collaboration leads to discovery of 'gender-bending' plant 2Unlikely collaboration leads to discovery of 'gender-bending' plant 3Majority of Americans believe another government shutdown likely in coming months 2Majority of Americans believe another government shutdown likely in coming months 3
(Date:10/22/2014)... 2014 Involution Studios , a ... a new infographic, Understanding Ebola . The ... designed, easy to follow informative tool for anyone wanting ... symptoms and prevention. , "As the news has spread ... Ebola outbreak represents not only a healthcare crisis with ...
(Date:10/22/2014)... Grace Century, a private equity consultancy ... the addition of Dr. Yousef “Josh” Siddiqui , ... Dr. Siddiqui will provide further healthcare expertise to its ... University College Medical School in the late ... 2001. With further certification as a General Practitioner (GP), ...
(Date:10/22/2014)...   Synthetic Biologics, Inc. (NYSE MKT: SYN), ... infections and diseases, announced today that the U.S. Patent ... for a composition of matter patent application that covers ... SYN-004. This is Synthetic Biologics, first allowed patent application ... to the Company,s extensive C. difficile patent ...
(Date:10/22/2014)... 22, 2014 Research and Markets  has ... by Material, by Application, Geography - Global Analysis and ... Organic electronics, also called as polymer ... science which deals with small conductive molecules and electrically ... molecules and polymers are carbon based, made using synthetic ...
Breaking Biology Technology:Involution Studios' Ebola Infographic Provides Key Disease Information and Statistics at a Glance 2Dr. Yousef Siddiqui joins the Grace Century Advisory Team 2Synthetic Biologics Announces Allowance of Key U.S. Composition of Matter Patent for C. difficile Program 2Synthetic Biologics Announces Allowance of Key U.S. Composition of Matter Patent for C. difficile Program 3Synthetic Biologics Announces Allowance of Key U.S. Composition of Matter Patent for C. difficile Program 4Global Organic Electronics (Semiconductor, Conductive, Dielectric and Substrate) Market - Analysis and Forecast (2014 - 2020) 2Global Organic Electronics (Semiconductor, Conductive, Dielectric and Substrate) Market - Analysis and Forecast (2014 - 2020) 3
... /PRNewswire-FirstCall/ - Neptune Technologies &,Bioressources Inc. ("Neptune") (NASDAQ.NEPT ... 2009 first quarter ended August 31, 2008., ... 31, 2008 was,$2,366,000 compared to $2,085,000 for the ... of 13.5%., The Company substantially decreased its ...
... best "gecko foot" dry adhesive got a new competitor this ... the journal Science by a team of researchers from four ... ability of gecko lizards to scurry up walls and cling ... amazing ability to microscopic branched elastic hairs in their toes ...
... 2 in ranking; up six spots from last year, ... recognition as a leader in biotechnology not just for its,ground-breaking ... Monsanto, headquartered in St. Louis, Missouri, took second place ... a leading,industry publication. The company moved up six spots from ...
Cached Biology Technology:Neptune Technologies & Bioressources Inc. reports first quarter results 2Dry adhesive based on carbon nanotubes gets stronger, with directional gripping ability 2Dry adhesive based on carbon nanotubes gets stronger, with directional gripping ability 3Dry adhesive based on carbon nanotubes gets stronger, with directional gripping ability 4Monsanto Recognized as Top Biotechnology Employer by Science Magazine 2
... Ease of Use : GeneTraffic ... software tool for biological research. GeneTraffic provides ... to validate your data prior to analysis. ... Quickly define your projects using the MIAME ...
... rigid macroporous hydrophilic media. The rigid polymer ... pressures, while the macroporous beads enhance access ... reduces nonspecific binding. Macro-Prep High Q support ... very high flow rates and resolution. It ...
... siTrio siRNA --- a cocktail of 3 ... of interestis our most popular product. The ... 75% knockdown of your target gene when ... for transfection and confirmation of optimal transfection ...
... IDS 25-Hydroxy Vitamin D kit is ... determination of 25-hydroxyvitamin D (25-OH D) ... serum or plasma. Our patented DIRECT ... solvent precipitation and centrifugation and therefore ...
Biology Products: