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 Jülich 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:4/13/2017)... According to a new market research report "Consumer ... Administration, and Authorization), Service, Authentication Type, Deployment Mode, Vertical, and Region - ... to grow from USD 14.30 Billion in 2017 to USD 31.75 Billion ... ... MarketsandMarkets Logo ...
(Date:4/6/2017)... , April 6, 2017 Forecasts ... ANPR, Document Readers, by End-Use (Transportation & Logistics, Government ... Oil, Gas & Fossil Generation Facility, Nuclear Power), Industrial, ... Other) Are you looking for a definitive ... ...
(Date:4/3/2017)...  Data captured by IsoCode, IsoPlexis Corporation,s ... statistically significant association between the potency of ... objective response of cancer patients post-treatment. The ... cancer patients will respond to CAR-T cell ... to improve both pre-infusion potency testing and cell ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... PA (PRWEB) , ... October 10, 2017 , ... ... City Science Center’s FirstHand program has won a US2020 STEM Mentoring Award. Representatives ... the award for Excellence in Volunteer Experience from US2020. , US2020’s mission is ...
(Date:10/10/2017)... ... October 10, 2017 , ... ... 13 prestigious awards honoring scientists who have made outstanding contributions ... scheduled symposium during Pittcon 2018, the world’s leading conference and exposition for laboratory ...
(Date:10/9/2017)... (PRWEB) , ... October 09, ... ... published on October 5, 2017, in the medical journal, Epilepsia, Brain Sentinel’s ... the gold standard, video EEG, in detecting generalized tonic-clonic seizures (GTCS) using ...
(Date:10/6/2017)... ... October 06, 2017 , ... ... discussion and webinar on INSIGhT, the first-ever adaptive clinical trial for glioblastoma (GBM). ... Institute. The event is free and open to the public, but registration is ...
Breaking Biology Technology:
Cached News: