Navigation Links
Carnivorous plants use pitchers of 'slimy saliva' to catch their prey
Date:11/20/2007

Carnivorous plants supplement the meager diet available from the nutrient-poor soils in which they grow by trapping and digesting insects and other small arthropods. Pitcher plants of the genus Nepenthes were thought to capture their prey with a simple passive trap but in a paper in this weeks PLoS ONE, Laurence Gaume and Yoel Forterre, a biologist and a physicist from the CNRS, working respectively in the University of Montpellier and the University of Marseille, France show that they employ slimy secretions to doom their victims. They show that the fluid contained inside the plants pitchers has the perfect viscoelastic properties to prevent the escape of any small creatures that come into contact with it even when diluted by the heavy rainfall of the forest of Borneo in which they live.

Since Charles Darwins time, the mechanism of insect-trapping by Nepenthes pitcher plants from the Asian tropics has intrigued scientists but is still incompletely understood. The slippery inner surfaces of their pitchers have until now been considered the key trapping devices, while it was assumed that the fluid secretions were only concerned with digestion. Gaume and Forterre were able to combine their separate expertise in biology and physics to show that the digestive fluid of Nepenthes rafflesiana actually plays a crucial role in prey capture.

The pair took high-speed videos of flies and ants attempting to move through plants fluid. Flies quickly became completely coated in the fluid and unable to move even when diluted more than 90% with water. Physical measurements on the fluid showed that this was because this complex fluid generates viscoelastic filaments with high retentive forces that give no chance of escape to any insect that has fallen into it and that is struggling in it. That the viscoelastic properties of the fluid remain strong even when highly diluted is of great adaptive significance for these tropical plants which are often subjected
'/>"/>

Contact: Laurence Gaume
laurence.gaume@cirad.fr
Public Library of Science
Source:Eurekalert

Page: 1 2

Related biology news :

1. Emory paleontologist reports discovery of carnivorous dinosaur tracks in Australia
2. Layered approach may yield stronger, more successful bone implants
3. Clever plants chat over their own network
4. Plants can be used to study how and why people respond differently to drugs
5. Book on weeds and invasive plants discusses how to manage them using ecological approaches
6. A greenhouse in order to study the impact of climate change on plants
7. Agent that triggers immune response in plants is uncovered
8. Scientists ramp up ability of poplar plants to disarm toxic pollutants
9. A new baseline of invasive plants in Isabela
10. Hungry microbes share out the carbon in the roots of plants
11. Scientists warn that species extinction could reduce productivity of plants on Earth by half
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/31/2015)... , Chine, 31 juillet 2015 La ... www.icg-10.org ) sera organisée par le BGI du ... Shenzhen en Chine. La ... son inauguration en 2006, l,ICG est devenue l,une ... le domaine des « omiques » et c,est aussi la ...
(Date:7/31/2015)... SHENZHEN, China , July 31, 2015 The ... ) will be held by BGI from October 22-25, 2015, in ... The conference is celebrating its 10 th ... become one of the world,s most influential annual meetings in ... enthusiastic, and enjoyable scientific gatherings. ICG-10 focuses ...
(Date:7/23/2015)... (NASDAQ: AWRE ), a leading supplier of biometrics software ... ended June 30, 2015.  Revenue for the ... 33% compared to $6.8 million in the same quarter last ... $0.3 million, or $0.01 per diluted share, which compared to ... period a year ago.  Lower revenue and ...
Breaking Biology News(10 mins):La 10e International Conference on Genomics (ICG-10) doit s'ouvrir en octobre 2La 10e International Conference on Genomics (ICG-10) doit s'ouvrir en octobre 3The 10th International Conference on Genomics (ICG-10) to Open in October 2Aware, Inc. Reports Second Quarter 2015 Financial Results 2Aware, Inc. Reports Second Quarter 2015 Financial Results 3Aware, Inc. Reports Second Quarter 2015 Financial Results 4Aware, Inc. Reports Second Quarter 2015 Financial Results 5Aware, Inc. Reports Second Quarter 2015 Financial Results 6
... CINCINNATIWith the discovery of a RNA nano-scaffold that remains ... of Cincinnati (UC) have overcome another barrier to the ... Dane and Mary Louise Miller Endowed Chair and professor ... of Engineering and Applied Sciences report the construction of ...
... drilling rig exploded on April 20, 2010, in the ... planetary sciences at the University of Tennessee, Knoxville, grabbed all ... the Louisiana coast. Engel and dozens of scientists ... they knew would be needed once the oil began spilling ...
... of white LED bulbs, it turns out, suppresses melatonin 5 ... Sodium bulbs that give off an orange-yellow light. "Just as ... also be regulations and rules for the pollution stemming from ... University of Haifa. , "White" light bulbs that emit ...
Cached Biology News:Team finds stable RNA nano-scaffold within virus core 2UT researcher investigates Deepwater Horizon oil spill impact on coast 2Dangers of exposure to 'white' light 2Dangers of exposure to 'white' light 3
(Date:7/30/2015)... Marshall, MN (PRWEB) , ... July 31, 2015 , ... ... Ralco Enrichment Center at the Lyon County Fair to be held August 5-9 in ... more about where their meals come from and how agriculture impacts their daily lives. ...
(Date:7/30/2015)... Washington , July 30, 2015 ... Market, by Product (Software, Molecular Modeling, PB/PK, PKPD, Trial ... Discovery & Development, Preclinical, Clinical Trial), by End Users ... Biosimulation Market is expected to reach USD 2,107.99 million ... a CAGR of 15.29%. Browse more ...
(Date:7/30/2015)... COPENHAGEN, Denmark , July 30, 2015 /PRNewswire/ ... a biotechnology company that applies its innovative TransCon ... announced positive top-line results from a six-month Phase ... of once-weekly TransCon Growth Hormone in 53 treatment-naïve, ... "We are extremely pleased with the ...
(Date:7/29/2015)... 30, 2015 Sanofi, a ... the second quarter of 2015. CEO Olivier ... its performance in different businesses. Watch ... http://www.eurobusinessmedia.com/ceo-direct/sanofi/sanofi-h1-2015-results-interview-with-ceo-olivier-brandicourt?utm_source=ceo-direct&utm_medium=wire Topics covered in the ... - Performance drivers - Diabetes ...
Breaking Biology Technology:Ralco Announces Primary Sponsorship of Ralco Enrichment Center at Lyon County Fair 2Biosimulation Market Worth 2,107.99 Million USD by 2020 2Biosimulation Market Worth 2,107.99 Million USD by 2020 3Biosimulation Market Worth 2,107.99 Million USD by 2020 4Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 2Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 3Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 4Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 5Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 6Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 7
... Study ... Initiated ... ET --, SOUTH SAN FRANCISCO, Calif., Oct. 24 Monogram,Biosciences, Inc. (Nasdaq: ... Third Quarter Results The Company had revenue of $10.4 million for ...
... October 25, 2007 at ... ... (Nasdaq: KERX ), a biopharmaceutical company focused on the,acquisition, development ... life-threatening,diseases, including diabetes and cancer, today announced its results for,the third ...
... The Pittsburgh Life Sciences,Greenhouse (PLSG), the ... on a fast track for growth, announced ... Technologies, LLC, a developmental-stage,medical device company, whose ... surgical probe that will alleviate the existing,limitations ...
Cached Biology Technology:Monogram Announces Third Quarter 2007 Financial Results 2Monogram Announces Third Quarter 2007 Financial Results 3Monogram Announces Third Quarter 2007 Financial Results 4Monogram Announces Third Quarter 2007 Financial Results 5Monogram Announces Third Quarter 2007 Financial Results 6Monogram Announces Third Quarter 2007 Financial Results 7Monogram Announces Third Quarter 2007 Financial Results 8Monogram Announces Third Quarter 2007 Financial Results 9Monogram Announces Third Quarter 2007 Financial Results 10Monogram Announces Third Quarter 2007 Financial Results 11Monogram Announces Third Quarter 2007 Financial Results 12Monogram Announces Third Quarter 2007 Financial Results 13Keryx Biopharmaceuticals, Inc. Announces Third Quarter 2007 Financial Results 2Keryx Biopharmaceuticals, Inc. Announces Third Quarter 2007 Financial Results 3Keryx Biopharmaceuticals, Inc. Announces Third Quarter 2007 Financial Results 4Keryx Biopharmaceuticals, Inc. Announces Third Quarter 2007 Financial Results 5Keryx Biopharmaceuticals, Inc. Announces Third Quarter 2007 Financial Results 6The PLSG Invests $115,000 in Innovention Technologies, LLC 2
... anti-freeze environment for enzyme conjugated antibodies and ... viscosity solution at -20C , No ... is convenient , Contains preservatives to ... Protect enzyme conjugates during storage without the ...
A collection of 42 spots with normal tissues from different organs of C57 mice, rat and human....
... voice-coil scanning and positioning system is ... have to be positioned or scanned ... It provides superior responsiveness compared to ... mechanics (X or XY stage) are ...
Improves spot morphology and DNA binding to the slide resulting in increased hybridization signal. ID Clarifier: Optimized spotting solution for use with SigmaScreen APS Coated Slides for Microarrays...
Biology Products: