Navigation Links
Self-defense strategies of moss
Date:6/10/2010

Slugs are every gardener's enemy: They can destroy overnight, what he has sown and looked after lovingly. But snails don't like all plants in the same way they shun moss. Why is that so? This question was already posed by the botanist and founder of Chemical Ecology, Ernst Stahl, at the end of the 19th century in Jena. More than a hundred years later chemists from Friedrich-Schiller-University Jena (Germany) found a possible answer: "Moss is capable of building up chemical compounds that protect them from enemies," says Prof. Dr. Georg Pohnert of Jena University. Ernst Stahl had come to the same conclusion after tests. Now the holder of the Chair of Instrumental analytics and his team succeeded in identifying these compounds and in proving their pest repellent properties beyond doubt. The chemists working with Prof. Pohnert published their research results in the latest edition of the german trade journal Angewandte Chemie.

What spoils the snails appetite for moss are so called oxylipins. "These are compounds which are formed from unsaturated fatty acids by pathways involving oxidation when the moss is being damaged," Prof. Pohnert explains. The Jena chemists analysed the moss Dicranum scoparium, also known as ordinary Broom Fork-moss that can be found in nearly all European woods. During their research the scientists found many formerly unknown compounds, among them new, very unusual oxylipins.

"Motivated by the observation that in other organisms, oxylipins often work directly as defence metabolites or are part of the regulation of defence mechanisms, we have analysed the impact of these compounds more accurately," says Prof. Pohnert, who, along with his group, so far focused on the chemical defence strategies of marine organisms. To prove the retardant impact of oxylipins against snail damage, Jena scientists engaged two well known "experts" - the slugs Arion lusitanicus which were being offered two salad leaves. One leaf was treated with oxylipins that had been extracted from moss; the other salad leaf had only been sprayed with the solvent methanol. "Almost without exception the snails choose the leaves that didn't contain oxylipins, even when we diluted the substances a thousand times in comparison to the concentration in moss," reports Martin Rempt, a postgraduate in Pohnerts team.

Prof. Pohnert thinks that these results could be used in the future to develop an organic repellent against slugs and other pests. That would be an ecological alternative to so-called "Schneckenkorn" (Snail Poison) that very often poses a potential danger not only for birds and other enemies of snails, but also for pets. The research will be extended to further moss species in the future.


'/>"/>

Contact: Axel Burchardt
presse@uni-jena.de
49-036-419-31031
Friedrich-Schiller-Universitt Jena
Source:Eurekalert  

Related biology news :

1. New adult malnutrition strategies could improve diagnosis and treatment
2. Drug industry embraces new business strategies after tough year
3. Male Australian redback spiders employ courtship strategies to preserve their life
4. Martin Hensen, head of e-strategies, UCB Germany: Making e-marketing more than just an add-on
5. LSUHSCs Kolls awarded $1.8 million to improve vaccine strategies for P. carinii pneumonia
6. GEN reports on strategies to overcome blood-brain barrier
7. Innovative strategies for war wounded
8. Baker Institute report proposes strategies to ensure global energy security
9. FSU researcher using computers to hone cancer-fighting strategies
10. Crop management strategies key to a healthy Gulf, planet
11. New strategies against bird flu
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Self-defense strategies of moss
(Date:4/13/2017)... April 13, 2017 UBM,s Advanced Design and ... will feature emerging and evolving technology through its 3D ... will run alongside the expo portion of the event ... and demonstrations focused on trending topics within 3D printing ... and manufacturing event will take place June 13-15, 2017 at ...
(Date:4/11/2017)... April 11, 2017 Crossmatch®, a globally-recognized ... solutions, today announced that it has been awarded ... Projects Activity (IARPA) to develop next-generation Presentation Attack ... "Innovation has been a driving force within ... will allow us to innovate and develop new ...
(Date:4/11/2017)... N.Y. , April 11, 2017 ... fingerprints, but researchers at the New York University ... College of Engineering have found that partial similarities ... security systems used in mobile phones and other ... thought. The vulnerability lies in the ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... October 11, 2017 , ... Proscia Inc ., ... a Webinar titled, “Pathology is going digital. Is your lab ready?” with Dr. ... best practices and how Proscia improves lab economics and realizes an increase in ...
(Date:10/11/2017)... (PRWEB) , ... October 11, 2017 , ... ... Administration (FDA) has granted orphan drug designation to SBT-100, its novel anti-STAT3 (Signal ... the treatment of osteosarcoma. SBT-100 is able to cross the cell membrane and ...
(Date:10/10/2017)... , Oct. 10, 2017 International research firm Parks Associates ... will speak at the TMA 2017 Annual Meeting , October 11 ... in the residential home security market and how smart safety and security ... Parks Associates: ... "The residential security ...
(Date:10/9/2017)... ... ... The award-winning American Farmer television series will feature 3 Bar Biologics in an ... on RFD-TV. , With global population estimates nearing ten billion people by 2050, ... a growing nation. At the same time, many of our valuable resources are becoming ...
Breaking Biology Technology: