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:7/10/2014)... SPRINGS, Colo. , June 27, 2014 /PRNewswire/ ... that the National Institute of Standards and Technology ... 10 of its academic research and forensic science ... (FSSB).  The Board is an element of the ... AAFS members are among the first appointments made ...
(Date:7/10/2014)... 2014 Smart technology emphasis grows in ... improved security: NXT-ID, Inc. (OTCBB: NXTD), eBay Inc. (NASDAQ: ... Apple Inc. (NASDAQ: AAPL ), Visa Inc. (NYSE: ... NXT-ID, Inc., (OTCQB: NXTD) a biometric authentication company focused on ... second series of 30 second spots on CNBC for its ...
(Date:7/10/2014)... July 2, 2014 NXT-ID, Inc., (OTCQB: NXTD) a biometric authentication ... Mr. Gino Pereira was interviewed on July 1 ... Tampa Florida . Mr. Pereira discusses the company,s ... Harris and how the Wocket™ aims to replace a ... Cedric Harris tells Gino he has never ...
Breaking Biology News(10 mins):Ten Members of the American Academy of Forensic Sciences Appointed to Forensic Science Standards Board (FSSB) 2Ten Members of the American Academy of Forensic Sciences Appointed to Forensic Science Standards Board (FSSB) 3Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 2Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 3Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 4Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 5Security and Your Money: Tampa Bay Radio Host Cedric Harris Talks to NXT-ID CEO Mr. Gino Pereira about the Wocket Smart Wallet 2Security and Your Money: Tampa Bay Radio Host Cedric Harris Talks to NXT-ID CEO Mr. Gino Pereira about the Wocket Smart Wallet 3Security and Your Money: Tampa Bay Radio Host Cedric Harris Talks to NXT-ID CEO Mr. Gino Pereira about the Wocket Smart Wallet 4
... Environment has awarded planning grants to 17 Stanford faculty ... sustainable built environment (SBE), an emerging field that promotes ... "Buildings consume about 40 percent of the energy and ... said Ray Levitt, a professor of civil and environmental ...
... viral genes tightly wound within a capsule, waiting for ejection ... revealed. Using electron microscopy and three-dimensional computer reconstruction, UC ... image yet of the protein envelope of an asymmetrical virus ... in the journal Structure . The image, with a ...
... WINSTON-SALEM, N.C. A hypertension medication called olmesartan medoxomil ... that occurs in patients with high blood pressure, according ... one of the study,s lead investigators and director of ... University Baptist Medical Center, said, "We believe the data ...
Cached Biology News:New grants will support research in the sustainable built environment 2Scientists discover DNA knot keeps viral genes tightly corked inside shell 2Hypertension treatment effective in reversing vascular damage 2
(Date:7/11/2014)... SEATTLE , July 11, 2014  Researchers ... navigate three-dimensional images. The new technology, called Virtual ... of small structures like neurons and synapses using ... Finger,s unique technology makes 3D imaging studies orders ... resources at an unprecedented level across many areas ...
(Date:7/10/2014)... Faso (PRWEB) July 10, 2014 ... today have access to an additional family planning ... access to contraception at all levels of the ... lower-dose formulation of a widely used contraceptive—Pfizer’s Depo-Provera® ... , Burkina Faso is the first of four ...
(Date:7/10/2014)... 2014 Deep Knowledge Ventures last ... on ‘Commercialising Longevity Research’ and welcomed a host ... London Bioscience Innovation Center for the event, organised ... Analytics Ltd. The meeting highlighted the need for ... for age-related disease, as well as the crucial ...
(Date:7/10/2014)... Terascala, the industry leader in HPC management ... vice president of product management for Flexera Software, has ... Terascala’s software when combined with leading compute and storage ... and most reliable solutions for processing big data. , ... and broaden its product portfolio. His leadership in startups ...
Breaking Biology Technology:Virtual Finger Enables Scientists To Navigate And Analyze 3D Images Of Complex Biological Structures 2Virtual Finger Enables Scientists To Navigate And Analyze 3D Images Of Complex Biological Structures 3Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 2Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 3Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 4Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 5Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 6DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 2DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 3DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 4DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 5DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 6Terascala Expands Executive Team 2Terascala Expands Executive Team 3
... France, November 28 The results of a,study ... Grasses,sublingual desensitisation product, which is due to receive ... study, VO52.06, which was carried out on 280,patients ... met the main evaluation criterion by,demonstrating a statistically ...
... Researchers at the National Institute of Standards and ... that eventually leads to cracks and breakdown in ... it long has been thought not to exist. ... the design of new silicon-based micro-electromechanical system (MEMS) ...
... Angiotech Pharmaceuticals,Inc. (NASDAQ: ANPI , TSX: ANP), ... scheduled to participate in the Bank of America,2007 ... - 4 in Orlando, FL., Tom Bailey, ... presentation followed by a 25-minute Question and Answer ...
Cached Biology Technology:STALLERGENES: ORALAIR Grasses: Positive Results of VO52.06 Paediatric Study 2Job-related stress: NIST demonstrates fatigue effects in silicon 2
Request Info...
... SlowFade Light Antifade Kit is an aqueous-based ... with fluorescent dyes. This formulation of antifade ... and Cascade Blue fluorophores that is often ... kit is available with the blue-fluorescent nucleic ...
Vitellogenin (Japanese medaka) Standard...
20X TE buffer *RNase free*...
Biology Products: