Navigation Links
Tree resin the key evidence of current and historic insect invasions
Date:3/22/2011

A University of Alberta-led research team has discovered that insects that bore into trees as long ago 90 million years, or as recently as last summer, leave a calling card that's rich with information.

The information is contained in the resin found within trees and on their bark. Resin is produced in large quantities by a tree when it's under attack by insects.

Normally, to assess if a tree is under an attack from boring insects researchers have sometimes had to rip patches of bark from healthy trees. But now forestry workers looking for the telltale sign of insect borings in tree trunks have a far less invasive methodthey can just examine the resin that collects in clumps on the tree trunk.

An attack by boring beetles typically affects trees in two ways. The boring action damages the phloem layer just under the bark, which cuts off the passage of nutrients within the trunk. Also, beetles often introduce a fungus that spreads into the woody xylem tissue of the tree and starves the treetop of water. A side-effect of insect invasion and water stress is a reduction in the tree's ability to absorb carbon dioxide from the atmosphere. Carbon dioxide is necessary for life-sustaining photosynthesis.

The research team, including U of A paleontology graduate student Ryan McKellar, looked for subatomic-sized isotopic evidence that indicates water stress levels in trees as a result of an insect attack.

The team discovered a common marker in carbon isotopes found in the resin of living trees under insect attack and in the fossilized resin or amber produced by ancient trees going as far back as the age of dinosaurs: they both contain elevated levels of carbon-13.

McKellar's group also found evidence of boring beetles and the increased presence of carbon-13 within amber fossils dating back in the geological record to 90 million and 17 million years ago. The locations are as geographically removed as present-day New
'/>"/>

Contact: Brian Murphy
brian.murphy@ualberta.ca
780-492-6041
University of Alberta
Source:Eurekalert

Page: 1 2

Related biology news :

1. Further research needed to develop evidence-based nutrition guidelines for cancer survivors
2. Jefferson researchers provide genetic evidence that antioxidants can help treat cancer
3. Scientists question indicator of fisheries health, evidence for fishing down food webs
4. More evidence that melanoma does not conform to the cancer stem cell model
5. Evidence is weak for tropical rainforest 65 million years ago in Africas low-latitudes
6. New evidence that fat cells are not just dormant storage depots for calories
7. Oldest evidence of dinosaurs found in Polish footprints
8. Researchers find first genetic evidence for loss of teeth in the common ancestor of baleen whales
9. Marine animals suggest evidence for a trans-Antarctic seaway
10. Animal bone markings show evidence that Lucy species used stone tools, ate meat
11. Scientists discover oldest evidence of human stone tool use and meat-eating
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/1/2014)... superposition to a classical state or a different superposition, it ... each start and end state there is an optimal or ... predict the path or track it experimentally as a straight-line ... , In a new paper featured on the July 30 ... Quantum Studies at Chapman University, the University of Rochester, University ...
(Date:8/1/2014)... 10,000 reptile species have been recorded into the ... reptile species and classification, making the reptile species ... world, alongside bird and fish species. , For ... mark the year that reptiles would become the ... include snakes, lizards, turtles, crocodiles, tuataras and amphisbaenians. ...
(Date:8/1/2014)... appear in the fossil record about 200,000 years ago, ... making art and advanced tools became widespread. , ... Current Anthropology finds that human skulls changed ... at around the same time that culture was blossoming. ... art and rapid cultural exchange probably came at the ...
Breaking Biology News(10 mins):Mapping the optimal route between two quantum states 2Reptile Database surpasses 10,000 reptile species 2Reptile Database surpasses 10,000 reptile species 3Society bloomed with gentler personalities and more feminine faces 2
... dinosaurs died and became fossilized, soft tissues didn't ... through a gradual replacement of all organic material ... State University paleontologist, however, could literally turn that ... professor of paleontology with a joint appointment at ...
... ATP (or GTP, a related energy currency) and transform ... myosin and dynein, proteins that use ATP to ferry ... proteins. The ATP-dependent assembly of actin or tubulin fibers ... march of white blood cells toward pathogens is powered ...
... Ph.D., Senior Bioinformatics Scientist at the European Molecular Biology ... they have identified a new primate-specific gene family that ... eight family members, the RGP gene cluster may help ... from the rest of the animal kingdom. , , ...
Cached Biology News:NC State scientist finds soft tissue in T. rex bones 2DNA Recombination and Repair—A New Twist to RecA Function 2Scientists document complex genomic events leading to the birth of new genes 2Scientists document complex genomic events leading to the birth of new genes 3
(Date:8/1/2014)... , August 1, 2014 According ... Research "Biophotonics Market - Global Industry Analysis, Size, Share, ... was valued at USD 25.16 billion in 2013, which ... growing at a CAGR of 10.4% from 2014 to ... at  http://www.transparencymarketresearch.com/biophotonics-market.html Increasing demand for accurate ...
(Date:8/1/2014)... 2014 BCC Research ( http://www.bccresearch.com ) ... TECHNOLOGIES AND GLOBAL MARKETS , that the global market ... grow to nearly $38.8 billion by 2018, with a ... aptamer delivery category, the fastest moving segment of the ... The field of RNAi therapeutics has shown tremendous growth ...
(Date:8/1/2014)... Testing the mechanical properties of ... understanding embryonic development. How and why embryonic ... functionally distinct tissues is important because abnormalities can ... McDevitt, Melissa Kinney, and Rabbia Saeed worked from ... cues to control many aspects of embryo development. ...
(Date:7/31/2014)... July 31, 2014 Today BioSpace , the leading life ... map campaign spotlighting the life sciences community in Illinois ... Kansas , Michigan , Minnesota ... Ohio and Wisconsin . ... percent of all job postings on BioSpace originating in this region in ...
Breaking Biology Technology:Global Biophotonics Market is Expected to Reach USD 50.20 Billion in 2020: Transparency Market Research 2Global Biophotonics Market is Expected to Reach USD 50.20 Billion in 2020: Transparency Market Research 3Global Biophotonics Market is Expected to Reach USD 50.20 Billion in 2020: Transparency Market Research 4Global Market for RNAi Drug Delivery Technologies to Reach $38.8 Billion in 2018; Aptamer Delivery Segment Surging at 58.2% CAGR 2Global Market for RNAi Drug Delivery Technologies to Reach $38.8 Billion in 2018; Aptamer Delivery Segment Surging at 58.2% CAGR 3Study Links Biomechanics and Gene Expression in Stem Cells 2Midwest Biotech Leaders Featured On BioSpace Map 2
... March 14, 2011 Argentum Medical, LLC today issued a ... versus Noble Biomaterials, Inc. "The most important thing ... patents and it is business as usual for Argentum," said ... case concerned non-patent issues and is currently being appealed. We ...
... Biofuels, a bioenergy crop company using breeding and biotechnology ... it is applying more than 1.6 million genetic markers ... of marker assisted selection (MAS) methods to produce elite, ... the announcement during its presentation at the Biowise 2011 ...
... March 11, 2011 /PRNewswire-Asia-FirstCall/ --Tianyin Pharmaceutical Co., Inc. (NYSE ... specializes in patented biopharmaceutical medicine, modernized traditional Chinese medicine, ... at the 23rd ROTH Annual OC Growth Stock Conference ... Carlton in Dana Point, California. Dr. James ...
Cached Biology Technology:Argentum Medical Issues Response to Recent Decision in Litigation With Noble Biomaterials 2SG Biofuels Advances Jatropha Biotech Platform with Application of Genetic Markers to Reference Genome 2TPI Attends 23rd ROTH Annual OC Growth Stock Conference from March 13-16, 2011 2
DNA fragmentation factor & Inhibitor of CAD...
Rabbit polyclonal to ErbB 2 ( Abpromise for all tested applications). entrezGeneID: 2064 SwissProtID: P04626...
Component in MasterPure™ Purification Kits...
Anti-CoralHue Dronpa Green Monoclonal Antibody Research Focus: cell surface antigens Storage: -20C Shipping Temperature: +4C...
Biology Products: