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:
TAG: After insects attack plants bunker sugars for later regrowth

(Date:7/25/2014)... N.Y., July 25, 2014 In the first broad-scale estimate ... Service scientists and collaborators calculated that trees are saving ... 670,000 incidences of acute respiratory symptoms. , While trees, ... of less than 1 percent, the impacts of that ... of the reduced air pollution at nearly $7 billion ...
(Date:7/25/2014)... Before the colonial era, 100,000s of people lived on ... cultures manipulated fire to control the availability of plants ... tribes continue to use fire to maintain desired habitat ... the U.S. Forest Service,s Pacific Southwest Station, will lead ... National Wildfire Refuge during the Ecological Society of America,s ...
(Date:7/25/2014)... the Terra satellite show the different areas that have been ... The burn scars show up as reddish-brown splotches of ... across the remote parts of Eastern Russia in the Sakha ... instrument, it is still possible to see the smoke ... noted below show the devastating number of fires that have ...
Breaking Biology News(10 mins):First national study finds trees saving lives, reducing respiratory problems 2Fire ecology manipulation by California native cultures 2Fire ecology manipulation by California native cultures 3
(Date:7/25/2014)... THOUSAND OAKS, Calif. , July 25, 2014 /PRNewswire/ ... its Board of Directors today declared a $0.61 per ... dividend will be paid on Sept. 5, 2014, to ... business on Aug. 14, 2014.  About ... biology for patients suffering from serious illnesses by discovering, ...
(Date:7/25/2014)... of bacteria live in each person,s digestive tract. Scientists ... and stave off harmful infections, but their role in ... shed light on the role of these bacteria, a ... Alm recently tracked fluctuations in the bacterial populations of ... described in the July 25 issue of the journal ...
(Date:7/25/2014)... from the University of Leicester has furthered our ... potential to create new materials using nanosized ,building ... in the prestigious academic journal Physical Review ... examine in rich detail the structure and internal ... acetylene molecule and a single helium atom. , ...
(Date:7/25/2014)... , July 25, 2014 ... the "Global Metabolomics Market 2014-2018" report ... http://photos.prnewswire.com/prnh/20130307/600769 Metabolomics or Metabonomics is ... Metabolomics has become a new experimental technique that ... the environmental sciences. Metabolites are small molecules that ...
Breaking Biology Technology:Amgen Announces 2014 Third Quarter Dividend 2Amgen Announces 2014 Third Quarter Dividend 3Monitoring the rise and fall of the microbiome 2Monitoring the rise and fall of the microbiome 3Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster 2Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster 3Global Metabolomics Market 2014-2018: Key Vendors are Agilent, Bio-Rad, Bruker, Human Metabolome and Metabolon 2
Cached News: