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:10/29/2014)... Researching the safety of nanoparticles is all the rage. ... topic, examining the question of whether titanium dioxide nanoparticles ... into the body, whether carbon nanotubes from electronic products ... to be or whether nanoparticles in food can get ... Public interest is great, research funds are flowing – ...
(Date:10/29/2014)... LANSING, Mich. – As bodies decompose, their types ... the clues they provide could mean the difference ... , Michigan State University is using a more ... help Detroit death-scene investigators examine these changing populations. ... as geographical location of death, gender, race, socioeconomic ...
(Date:10/29/2014)... as ,facultative, form part—together with other cells—of tissues and ... from the others. However, they have a very special ... cells again. This phenomenon is something that happens in ... tissue growth, thus allowing the regeneration of the organ ... the underlying mechanism that allows these cells to retain ...
Breaking Biology News(10 mins):Nanosafety research: The quest for the gold standard 2Nanosafety research: The quest for the gold standard 3MSU partners with Detroit to investigate death scenes 2A mechanism that allows a differentiated cell to reactivate as a stem cell revealed 2
... from The University of Manchester have revealed new images ... blood immune cells attack viral infections and tumours. , ... fighting infections and cancer in the human body, change ... a type of protein found on viral-infected or tumour ...
... by bacteria and used as an organic pesticide, could ... humans and provide effective relief to over a billion ... California, San Diego, La Jolla, CA, report on this ... print in the journal Applied and Environmental Microbiology ...
... develop through a number of immature stages. During this ... to. For immune system B cells, Rudolf Grosschedl of ... his team have discovered that the transcription factor EBF1 ... are. When the researchers switched off the transcription factor, ...
Cached Biology News:Researchers reveal the clearest new pictures of immune cells 2Natural pest control protein effective against hookworm: A billion could benefit 2Between B cells and T cells 2
(Date:10/27/2014)... October 27, 2014 The report ... Intelligent Traffic Management, Communication, Monitoring), and by Display ... to 2019” segments the global market into various ... It also identifies the drivers and restraints for ... challenges. , Browse 75 market tables and 37 ...
(Date:10/27/2014)... 2014 Janssen Biotech, Inc. and the ... today the launch of Get Your ... campaign designed to provide resources for people living ... role of nutrition and appropriate therapy in managing ... associated with this release, please click: http://www.multivu.com/players/English/7261131-janssen-ccfa-get-your-full-course-for-ibd-wellness-with-sunny-anderson/ ...
(Date:10/26/2014)... (PRWEB) October 26, 2014 The ... Routers, ADC, Network Security Equipment, WAN Optimization Appliances]: ... and segments the data center networking market into ... of revenues. The report also identifies the factors ... opportunities impacting it along with the future roadmaps. ...
(Date:10/25/2014)... The report “Adipic Acid Market ... - Global Trends & Forecast to 2019” report ... market drivers, opportunities, and trends in different regions. ... figures spread through 217 slides and in-depth TOC ... Forecast to 2019”., http://www.marketsandmarkets.com/Market-Reports/adipic-acid-269.html , Early buyers ...
Breaking Biology Technology:Smart Highway Market by Technology, and Display Expected to Reach $27.992.0 Million by 2019- New Report by MarketsandMarkets 2Smart Highway Market by Technology, and Display Expected to Reach $27.992.0 Million by 2019- New Report by MarketsandMarkets 3Smart Highway Market by Technology, and Display Expected to Reach $27.992.0 Million by 2019- New Report by MarketsandMarkets 4Celebrity Cook Sunny Anderson Teams Up With Janssen And Crohn's & Colitis Foundation Of America To Launch Educational Campaign 2Celebrity Cook Sunny Anderson Teams Up With Janssen And Crohn's & Colitis Foundation Of America To Launch Educational Campaign 3Celebrity Cook Sunny Anderson Teams Up With Janssen And Crohn's & Colitis Foundation Of America To Launch Educational Campaign 4Data Center Networking Market by Ethernet Switches, SAN & Routers Worth $21.85 Billion by 2018 - New Report by MarketsandMarkets 2Data Center Networking Market by Ethernet Switches, SAN & Routers Worth $21.85 Billion by 2018 - New Report by MarketsandMarkets 3Data Center Networking Market by Ethernet Switches, SAN & Routers Worth $21.85 Billion by 2018 - New Report by MarketsandMarkets 4Adipic Acid Market Estimated to Grow $7,539.2 Million by 2019 - Report by MarketsandMarkets 2Adipic Acid Market Estimated to Grow $7,539.2 Million by 2019 - Report by MarketsandMarkets 3Adipic Acid Market Estimated to Grow $7,539.2 Million by 2019 - Report by MarketsandMarkets 4
... Wis. Can a Mac really be hacked in just ... of Wisconsin-Madison systems engineer, who criticized recent media reports for sensationalism ... the owner of a computer gave out login accounts to potential ... someone who had been given access to the computer to take ...
... charging marketers to reach the inboxes of their subscribers, it's ... cent? 1/4 cent? , ,The right inbox? Priceless. , ... most consumers. It's not uncommon for inboxes to average hundreds ... percent are either welcomed or relevant. Most consumers have some ...
... Fifty-five fledgeling companies and ideas passed muster in the ... said on Wednesday. , ,They were chosen from 188 ... summaries of their businesses and represent various municipalities, with ... down from 200 entries last year and 330 in ...
Cached Biology Technology:What's an inbox worth? 2What's an inbox worth? 3What's an inbox worth? 4
... Highly nutritious peptone, ... the production of bacterial ... cultivation of bacteria with ... Corynbacterium, Haemophilus, Neisseria, Pasteurella, ...
... RPMI 1640 with 2 mM L-glutamine and harvested ... order to keep the antigens in their native ... cells are arrayed on a 12-well (5 mm) ... treated to enhance cellular attachment and to minimize ...
... StabilCoat Plus Microsphere/Microarray Stabilizer is an ... protein and other non-toxic chemicals in a ... 7.4. This product contains a ... as a preservative. StabilCoat Plus Stabilizer ...
... ABgene's Protein Purification Plates are designed for ... gels. The 96-well plates feature two 0.25mm ... of each well. The wells remain liquid-tight ... buffer, during which time the protein diffuses ...
Biology Products: