Navigation Links
Elevated Carbondioxide may Have Negative Impact on Ecosystem

Elevated CO2 is considered to be a serious catalyst of global change. Its effects can be felt throughout the ecosystem , including the insect-plant food chain link.Safeguarding highly-usable crops is of great importance to many local and national economies.

In research to be presented at the annual meeting of the American Society of Plant Biologists in Chicago (July 7-11, 2007), scientists will show that elevated CO2 may negatively impact the relationship between some plants and insects.

Many plants have inherent enzyme-based defenses that are released during insect attack. This study found that when soybeans (Glycine max) were exposed to elevated amounts of CO2 the plants became more susceptible to attack by Japanese beetles (Popillia japonica).

Furthermore, as these beetles consumed the weakened soybeans, the insects invasive abilities were intensified.

Dr. Jorge Zavala, Sr. of the Institute for Genomic Biology at the University of Illinois, and his colleagues conducted tests in which they evaluated this herbivorous attack-defense cycle.

They studied soybeans grown in traditional field conditions but with additional exposure to ambient CO2. The results showed that the amount of cysteine proteinase inhibitors (CystPls) expressed in the genes decreased when soybeans were exposed to elevated CO2.

CystPls is naturally produced by soybeans when they are under insect attack. It inhibits further attack once the invader has ingested it. Our results suggest that elevated CO2 increased the susceptibility of soybean to invasive insects by down-regulating the expression of hormones related with defense, which down-regulate the important defense CystPls against beetles, Zavala said.

Zavala also explained, Under natural field conditions, elevated CO2 not only increased susceptibility of soybean to herbivory by the invasive species Japanese beetle, but also enhanced the performance of these beetles.

The investigation also determined the expression of genes that regulate two of the soybeans defensive hormones, jasmonic acid and ethylene. The results showed that exposure to increased CO2 lowers the plants ability to regulate its defensive hormones.

The relevancy of this study is far-reaching since soybeans are an important crop to many different economies. Furthermore, while this study is specific to one plant and insect pairing, these findings will help inform the on-going debate on CO2 exposure and global change.

Contact: Dr. Jorge Zavala, Sr. zavala@igb.uiuc.edu Katie Engen katie@aspb.org / 301.251.0560 ext 116


'"/>




Related medicine news :

1. Elevated Ozone Levels Hurt Sperm Count
2. Elevated homocysteine levels linked to congestive heart failure risk
3. Elevated LDL levels in Childhood could be Predictors of Heart Disease
4. Elevated Blood Sugar Levels A Risk Factor Of Heart Disease
5. Elevated Insulin Levels To Influence Levels Of Inflammatory Markers
6. Diabetic Type II Women Have Elevated Bone Density Mass
7. Males Lifespan Shortened By Elevated Levels Of Testosterone
8. Adults Needs to be Educated About the Dangers of Elevated TVs
9. Discovery of Elevated Amyloid Peptide levels could lead to Alzheimer’s Preventio
10. New Therapy to Treat Patients With Severely Elevated Cholesterol Levels
11. Study Attributes Elevated Liver Enzymes in HIV/hepatitis to Coinfection Rather Than Antiretrovirals
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/21/2017)... (PRWEB) , ... April 21, 2017 , ... Providing for ... understand the estate planning process, or where to even begin. “Now more than ever ... you are to properly protect yourself and your family,” said attorney Lisa Edgar Dickman, ...
(Date:4/21/2017)... ... April 21, 2017 , ... Westside Dental Associates ... dental care since 1985. After thirty-two years, Dr. Latner has become one of the ... my numerous clients over the years with all their dental needs,” said Dr. Latner, ...
(Date:4/21/2017)... ... ... Each year, everyone is urged to give back to the earth on April ... a better future. However, supporting the environment should be an everyday practice. , ... to five times more polluted than outdoor air, reports the Environmental Protection Agency -- ...
(Date:4/21/2017)... Houston, Texas (PRWEB) , ... April 21, 2017 ... ... repeal…. sound familiar? These are five common elements between the Obamacare program ... feral hog control program which uses Warfarin poison to kill hogs. , ...
(Date:4/21/2017)... ... April 21, 2017 , ... Indiana ... significant bandwidth upgrade infrastructure service to Tele-Media Solutions. IFN is delivering Multi-Gigabit ... IFN’s consortium member-owners, Tele-Media Solution’s protect transport with 3GB Dual Access Internet access ...
Breaking Medicine News(10 mins):
(Date:4/20/2017)... Eyevensys, a private biotechnology company developing its ... that enables the safe, local, sustained production of therapeutic ... of ophthalmic diseases, announces it has received approval from ... to advance its technology into clinical development. ... The EyeCET platform uses ...
(Date:4/20/2017)... Research and Markets has announced the addition of ... By Service (Manufacturing, Research), By Country, (Brazil, Mexico, Colombia, Argentina, ... to their offering. ... The Latin American pharmaceutical contract manufacturing services market is anticipated ... drug registration cost in Latin American countries and continuous economic ...
(Date:4/19/2017)... , April 19, 2017 Cardiology devices segment ... projected period The Cardiology Devices segment is likely ... US$ 15 Mn in 2018 over 2017. By the end ... market valuation close to US$ 700 Mn, expanding at a ... segment dominated the Asia Pacific reprocessed ...
Breaking Medicine Technology: