Navigation Links
Lethal backfire: Green odor with fatal consequences for voracious caterpillars
Date:8/26/2010

ed. Hence the unknown substance is likely an enzyme, because enzymes are typically heat labile. The scientists also determined whether tobacco plants react specifically on Manduca sexta oral secretions or to secretions of other larval species as well. Interestingly, the secretions of two Spodopera species (Spodoptera exigua and S. littoralis) had significantly lower effects.

However, one question remains unanswered: Why does the oral secretion of Manduca sexta larvae contain a substance which endangers the larvae's lives as soon as they start feeding on tobacco leaves? Silke Allmann and Ian Baldwin hypothesize that the production of (E)-2-hexenal protects the larvae against other untested attackers, such as bacteria. Harmful microorganisms, consumed by the larvae every day in large amounts together with the leaf tissue, may be killed quickly and effectively by (E)-2-hexenal, which is known to be a strong antibiotic agent. Hence the detrimental aspects of producing (E)-2-hexenal, that of betraying the precise location of the Manduca sexta larvae to their enemies, may be balanced by the benefits of fewer bacterial infections. Regardless, the winner in this tritrophic food chain is the carnivore Geocoris, which is well fed as a result of the response thanks to its highly sensitive antennae which enable it to smell the slightest concentrations of (E)-2-hexenal. [JWK, AO]


'/>"/>

Contact: Ian T. Baldwin
baldwin@ice.mpg.de
49-017-518-04226
Max Planck Institute for Chemical Ecology
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Nature Medicine study shows Peregrines bavituximab can cure lethal virus infections
2. Diabetes drug shows promise in fighting lethal cancer complication
3. UCF professors vaccine could be lethal weapon against malaria, cholera
4. Researchers discover genetic differences between lethal and treatable forms of leukemia
5. Even at sublethal levels, pesticides may slow the recovery of wild salmon populations
6. Synthetic lethality: A new way to kill cancer cells
7. Study: Gene therapy reverses effects of lethal childhood muscle disorder in mice
8. Colonies of bacteria fight for resources with lethal protein
9. Pitt researchers discover big role for microRNA in lethal lung fibrosis
10. The kiss of death: Research targets lethal disease spread by insect that bites lips
11. Experimental treatment protects monkeys from lethal Ebola virus post-exposure
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Lethal backfire: Green odor with fatal consequences for voracious caterpillars
(Date:7/29/2014)... PARIS, 29 JULY 2014 With thirty days to ... for the FEBS-EMBO 2014 Conference are well underway. The ... Biochemical Societies (FEBS), EMBO, and the French Society for ... Saturday, 30 August to Thursday, 4 September at the ... 2014 Conference is the largest meeting for the life ...
(Date:7/29/2014)... the first to show that while the impact of ... negative effects may be reduced by maintaining a healthy ... participants who exercised, slept well and ate well had ... healthy lifestyles, even when they had similar levels of ... in the department of psychiatry at UCSF. "It,s very ...
(Date:7/28/2014)... in the United States have a circulatory problem of ... painful and may even require surgery in serious cases. ... and, in turn, limb amputation. , At The University ... School, scientists tested a non-surgical preventative treatment in a ... with increased blood circulation. Their proof-of-concept study appears ...
Breaking Biology News(10 mins):Counting down to FEBS-EMBO 2014 in Paris, France 2Healthy lifestyle may buffer against stress-related cell aging, study says 2Scientists discover genetic switch that can prevent peripheral vascular disease in mice 2
... and sudden collapse of bee colonies across the country, but Penn ... triggers colony deaths which includes suppression of the bee immune system ... bee parasite that feeds much like a tick on the body ... pin head, dark brown in color and visible on close inspection. ...
... their genetic material from distantly related bacteria species, according ... Tucson. , The finding has important biomedical implications because ... many pathogenic bacteria pick up antibiotic resistance or become ... new antibiotics, it's important to monitor the rates and ...
... infected with HIV-1 engage a primitive defense mechanism ... invertebrates. The research also reveals exactly how HIV-1 ... vertebrate cells. However, elucidation of the mechanism HIV-1 ... into a potential vulnerability within the HIV-1 molecule. ...
Cached Biology News:Bee mites suppress bee immunity, open door for viruses and bacteria 2Bee mites suppress bee immunity, open door for viruses and bacteria 3Where bacteria get their genes 2Where bacteria get their genes 3Ancient immune defense mechanism is no match for HIV-1 2
(Date:7/29/2014)... Cheshire Cat: Can a particle be separated from its ... Communications , published the results of the first Cheshire ... conducted by Chapman University in Orange, CA, and Vienna ... a cat without a grin," thought Alice in Wonderland, ... curious thing I ever saw in my life!" Alice,s ...
(Date:7/29/2014)... 29, 2014 Second generation biofuels are a ... fossil fuels. However, as natural gas is very cheap, this ... are not as valuable as they could be in comparison ... financing projects, has made it difficult for renewable energy developers ... off the ground. For these reasons, certain companies have shifted ...
(Date:7/29/2014)... SPRINGS, Colo. , July 29, 2014 /PRNewswire/ ... specializing in cannabis formulation-based drug development and related ... York Times for taking a strong position in ... its Sunday, July 27, 2014 publication.  The New ... editorials and articles this week exploring the issue ...
(Date:7/29/2014)... Tenn. (PRWEB) July 29, 2014 ... in biomass feedstock supply innovation and supply chain ... proprietary feedstock management systems, Energy Grangeā„¢ and Supply ... of R&D and in-the-field testing aimed at consolidating ... offering benefits to landowners, farmers and feedstock end ...
Breaking Biology Technology:The quantum Cheshire cat: Scientists separate a particle from its properties 2The quantum Cheshire cat: Scientists separate a particle from its properties 3The quantum Cheshire cat: Scientists separate a particle from its properties 4Renewable Waste Intelligence: Could Renewable Chemicals Be the Future for the Renewable Energy Industry? 2Cannabis Science, Inc. (CBIS) Applauds New York Times Editorial Board Stance on 'Repealing Prohibition, Again'; NYT Editorial Is Bell Weather of Change 2Cannabis Science, Inc. (CBIS) Applauds New York Times Editorial Board Stance on 'Repealing Prohibition, Again'; NYT Editorial Is Bell Weather of Change 3Genera Energy Introduces Proprietary Feedstock Management Systems 2Genera Energy Introduces Proprietary Feedstock Management Systems 3Genera Energy Introduces Proprietary Feedstock Management Systems 4
... a,biomedical company advancing DNA-guided medicine and personalized,healthcare, today ... Small,Business Innovation Research (SBIR) Grant totaling $1.2 million. ... and Efficacy," was,awarded by the National Institute of ... most prescribed drugs in the world. Drugs in ...
... Post-Split Shares, JACKSONVILLE, Fla., March 19 ... the completion of its,100-for-1 reverse stock split process. ... in the quotation of the price of the ... Shareholders will receive instructions shortly for surrendering ...
... Kalologie Skincare today,announced that Niv Edward Caviar, ... elected to Kalologie Skincare,s board of,directors. Mr. Caviar ... "Niv is a strong marketer with solid ... forward to benefiting from Niv,s unique,insight in the ...
Cached Biology Technology:Genomas Awarded $1.2 Million NIH SBIR Grant to Develop DNA-Guided System for Management of Statin Therapy 2Ex-Allergan Vice President Joins Kalologie Skincare Board of Directors 2
SCCRO (S-17)...
... a nucleoside antibiotic from ... a potent translational inhibitor ... eukaryotic cells. Resistance to ... the products of the ...
... of a class of proteins who function to ... S plays an integral role in proofreading the ... excision repair and in preventing chromosomal recombination between ... DNA specifically at base pair mismatches and small ...
... Antibody Epitope: A BALB/c ... Recommended Storage: Store vial at ... and freeze at -20 C or below for ... thawing. Centrifuge product if not completely clear ...
Biology Products: