Navigation Links
Amber specimen captures ancient chemical battle
Date:8/29/2007

CORVALLIS, Ore. It appears that chemical warfare has been around a lot longer than poison arrows, mustard gas or nerve weapons about 100 million years, give or take a little.

A new study by researchers at Oregon State University has identified a soldier beetle, preserved almost perfectly in amber, which was in the process of using chemical repellants to fight off an attacker when an oozing flow of sap preserved the struggle for eternity.

The discovery is the earliest fossil record of a chemical defense response, scientists say, and indicates that this type of protective mechanism now common in the insect world and among other animal species has been around for more than 100 million years. Its a sophisticated form of defense that clearly was in good working order while dinosaurs still roamed the Earth.

The findings were just published in the Journal of Chemical Ecology.

The chance of these circumstances all coming together at the exact right second was pretty slim, said George Poinar, Jr., a courtesy professor of zoology at OSU and one of the worlds leading experts on distant life forms preserved in amber. You have a prehistoric insect being attacked, using its defenses to ward off the predator and the whole event becoming captured in action as sap flowed down a tree. Its quite remarkable.

The beetle was a small insect, about one-quarter inch long, which may have been in the process of becoming lunch for a giant roach or some other larger insect that apparently was 2-3 inches long, judging by the length of an antenna from the other insect also found in the specimen. The other insect either escaped the sap or was preserved in a different piece of amber, in these samples of Burmese amber that came from the Hukawng Valley in Myanmar.

This particular insect is now extinct, but the broader family of soldier beetles still exists, and they still use this same type of chemical defense mechanism, Poinar said. Th
'/>"/>

Contact: George Poinar
poinarg@science.oregonstate.edu
541-752-0917
Oregon State University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Amber reveals ecology of 30 million year old spiders
2. Science captures the essence of fruit
3. WWF captures first-ever photo of wild rhino on Borneo
4. Triple threat polymer captures and releases
5. MITs ocean model captures diversity of underwater forests
6. Envisat captures first image of Sargassum from space
7. Ancient olfaction protein is shared by many bugs, offering new pest control target
8. Researchers find missing genes of ancient organism
9. Family trees of ancient bacteria reveal evolutionary moves
10. Scientists find fossil proof of Egypts ancient climate
11. U-M team recovers ancient whale in Egyptian desert
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/20/2014)... from the University of Tbingen, Arizona State University, the ... Public Health Institute (Swiss TPH) isolated Mycobacterium pinnipedii ... least 1000 years old. The pathogen is a relative ... occasionally causes disease in humans today. These researchers assume ... Peruvian coast. "The link to sea lions was unexpected" ...
(Date:8/20/2014)... August 19, 2014 -- Bay Area Lyme Foundation, which ... simple to cure, applauds new research published in an ... Ticks and Tick-borne Diseases . The findings show ... are active throughout the year, making the threat of ... at California Department of Public Health (CDPH) Vector-borne Disease ...
(Date:8/20/2014)... -- When are athletes who have suffered concussions ready ... study has found that high school athletes who head ... days experience a significant regression in their abilities to ... regression, as seen in changes in their balance and/or ... athletes. Ten of the 12 had returned to activity ...
Breaking Biology News(10 mins):Lyme disease risk is year-round in Northwest California, according to new study 2Lyme disease risk is year-round in Northwest California, according to new study 3Recovery reversal seen in Oregon study of returning concussed athletes 2Recovery reversal seen in Oregon study of returning concussed athletes 3
... searches blood for the tiniest remnants of broken down ... up cancer activators called proteases. The results improve researchers, ... to where to look for possible indicators of early ... , the research shows previously unknown contributing factors to ...
... The cells and tissues in our bodies grow, develop ... the various microbial pathogens that invade our bodies and ... milieu. Yet the methods of culturing and studying human ... on flat impermeable surfaces. While such 2-D culturing and ...
... with a peer facing the same self-management challenges helped ... sugar levels better than those who used traditional nurse ... University of Michigan Health System. The findings, published ... showed the peer partner program resulted in lower ...
Cached Biology News:New clues to how cancer-related proteins plasmin, thrombin lose inhibition 2New clues to how cancer-related proteins plasmin, thrombin lose inhibition 3New clues to how cancer-related proteins plasmin, thrombin lose inhibition 4The world is not flat: Exploring cells and tissues in three dimensions 2The world is not flat: Exploring cells and tissues in three dimensions 3The world is not flat: Exploring cells and tissues in three dimensions 4Diabetic adults' conditions improved after phone calls with fellow patients 2Diabetic adults' conditions improved after phone calls with fellow patients 3
(Date:8/20/2014)... Bulgaria (PRWEB) August 20, 2014 ... was released today including improvements to the enterprise ... and connectors for Lucene, SOLR and Elasticsearch. This ... for this high performance triplestore – GraphDB™ was ... interested in deploying the only mature enterprise resilient ...
(Date:8/19/2014)... Aug. 19, 2014 Research and Markets  has announced ... Global Strategic Business Report" report to their offering. ... Culture Supplies in US$ Thousands by the following Product Segments: Media, ... for the US, Canada , Japan ... , and Latin America . Annual estimates and ...
(Date:8/19/2014)... Research and Markets  has announced the addition of the ... report to their offering. This report ... in US$ Thousands. The report provides separate comprehensive analytics for ... , Asia-Pacific , and Rest of ... 2012 through 2020. Market data and analytics are derived from ...
(Date:8/19/2014)... 19, 2014 Research and ... the "Spectroscopy Equipment and Accessories - ... their offering. This report ... and Accessories in US$ Thousands by the ... Raman Spectrometers, NMR-EPR Spectrometers, Near Infrared (NIR) ...
Breaking Biology Technology:Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 2Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 3Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 4Global Cell and Tissue Culture Supplies - Strategic Business Report 2014 2Global Solid Oxide Fuel Cells (SOFCs) - Strategic Business Report 2014 2Global Spectroscopy Equipment and Accessories - Strategic Business Report 2014 2
... Jan. 2 Nektar,Therapeutics, (Nasdaq: NKTR ) President ... at the upcoming JPMorgan 26th Annual Healthcare,Conference at the ... January 8, 2008, at 4:30 p.m. Pacific Time., ... and slideshow,webcast through a link posted on the Investor ...
... Cephalon, Inc. (Nasdaq:,CEPH) today announced that it has ... Food and Drug Administration (FDA) requesting approval of,TREANDA(R) ... patients,with indolent B-cell non-Hodgkin,s lymphoma (NHL) who have ... rituximab-containing,regimen. According to the National Cancer Institute, an ...
... MYL ) today,announced that Mylan Pharmaceuticals Inc. ... Drug Administration (FDA) for its Abbreviated New Drug,Application ... Balsalazide Disodium Capsules are the generic version of ... approximately,$130.9 million for the 12 months ending Sept. ...
Cached Biology Technology:Cephalon Submits New Drug Application for TREANDA for the Treatment of Patients with Relapsed Indolent Non-Hodgkin's Lymphoma 2Cephalon Submits New Drug Application for TREANDA for the Treatment of Patients with Relapsed Indolent Non-Hodgkin's Lymphoma 3Cephalon Submits New Drug Application for TREANDA for the Treatment of Patients with Relapsed Indolent Non-Hodgkin's Lymphoma 4