HOME >> BIOLOGY >> NEWS
After insects attack, plants bunker sugars for later regrowth

This press release is also available in German.

Using radioactive carbon and genetically modified native tobacco plants (Nicotiana attenuata), scientists at Max Planck Institutes in Jena and Golm (Potsdam) and at the Research Centre in J├╝lich have discovered the first gene mediating tolerance to herbivore attack: GAL83, the beta-subunit of Nicotiana attenuataTMs SNF-1 related kinase. This gene mediates a rapid herbivore-elicited carbon-hoarding behaviour in which recently assimilated carbon (measured with 11CO2) is squirrelled away to the roots rather than transported to young expanding leaves, to be used later to extend the period of seed and flower production when the plant is done growing. As soon as the plants are attacked by the larvae of the nicotine-resistant tobacco hornworm, Manduca sexta, elicitors from this herbivoreTMs mouth (called FACs - fatty acid conjugates), which also tune the plantTMs induced defence responses, are shown in this study to activate carbon storage in the roots. By reconfiguring where it stores carbon, the plant gains a measure of tolerance and thereby the ability to withstand voracious herbivores.

Ecological studies conducted in the department of Prof. Ian T. Baldwin at the Max Planck Institute for Chemical Ecology in Jena, Germany, focus on the defense of plants against attack from herbivores. Plants respond to attack by producing an arsenal of direct (toxins, digestibility reducers, etc.) and indirect defences that reduce the attackers' performance, thereby lessening the amount of damage inflicted to the plant. However, the co-evolutionary dynamics of the interaction often leads to herbivores that are adapted to the plantTMs defences. Resolution of this evolutionary impasse may require the kind of solution advocated by Mahatma Gandhi: tolerate the damage. Or
'"/>

Contact: Dr. Ian T. Baldwin
baldwin@ice.mpg.de
49-364-157-1101
Max-Planck-Gesellschaft
5-Sep-2006


Page: 1 2 3

Related biology news :

1. After a decades-long search, scientists identify new genetic risk factors for multiple sclerosis
2. After scrutiny, preemie lung treatments turn out to be safe, effective
3. After 2 years, study shows Revlimid patients live longer and remain transfusion free
4. After North Korea test, what can be done to reduce the growing nuclear threat?
5. After the Hurricanes
6. After the yeast is gone bacteria continue to develop flavor of sparkling wine
7. After a time-shift, mixed signals from the circadian clock
8. After flu exposure, mild exercise protects mature mice from dying
9. Tropical insects go the distance to inform rainforest conservation
10. For many insects, winter survival is in the genes
11. Do we need a paradigm change? Disputing coevolution in herbivorous insects

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:1/6/2017)... , Jan. 5, 2017  SomaLogic announced ... "Digital Life Alliance" established by iCarbonX, the ... to build a "Global Digital Health Ecosystem that ... a combination of individual,s biological, behavioral and psychological ... agreement between the companies, SomaLogic will provide proteomics ...
(Date:12/22/2016)... MOUNTAIN VIEW, Calif. , Dec. 20, 2016  As ... all levels, 23andMe, the leading personal genetics company, recently released ... Only Me . The book focuses on the topics ... the Next Generation Science Standards (NGSS) taught in elementary school ... the second in a series by illustrator Ariana Killoran ...
(Date:12/16/2016)... , Dec. 16, 2016   IdentyTechSolutions ... Identity management products and solutions and a cutting-edge ... today that it is offering seamless, integrated solutions ... security entrance products. The solutions provide IdentyTech,s customers ... secure their facilities from crime and theft. ...
Breaking Biology News(10 mins):
(Date:1/19/2017)... , Jan. 19, 2017 /PRNewswire -- WuXi ... device open-access capability and technology platform, today announced ... leading biology focused preclinical drug discovery contract research ... will become a wholly-owned subsidiary of WuXi, and ... competences and providing greater services. The acquisition will ...
(Date:1/19/2017)... ... January 19, 2017 , ... November Research ... leading biopharmaceutical and medical device manufacturers and regulators, is proud to announce the ... 11-compliant email client designed to provide product vigilance departments with the flexibility and ...
(Date:1/19/2017)... 2017 AquaBounty Technologies, Inc. (AIM: ABTU; NASDAQ: ... aquaculture and a majority-owned subsidiary of Intrexon Corporation (NYSE: ... the listing of its common shares on the NASDAQ ... "AquaBounty,s listing on NASDAQ represents an important ... to the U.S. markets as we advance plans for ...
(Date:1/19/2017)... ... January 19, 2017 , ... FireflySci Inc. is a go-getter ... The tremendous growth is accounted to two main factors. The first is the ... network of vendors supplying FireflySci products all around the world. , 2016 was a ...
Breaking Biology Technology:
Cached News: