Navigation Links
Green leaf volatiles increase plant fitness via biocontrol
Date:10/25/2012

ration of flowers and seeds: its ability to produce grandchildren? For this cannot be taken for granted. Defense reactions, such as the emission of odor molecules or the synthesis of digestive inhibitory substances, are costly and may attract foes as well as friends, or squander resources needed for seed maturation. After defending itself, a plant may survive, but at what cost? Is it really better off than if it had simply tolerated the herbivorous foe? Natural defenses, or in other words biological control, are only useful for agriculture if they secure or, better, increase expected yield.

With only very few exceptions, plants emit green leaf volatiles (GLVs) when damaged. The GLVs released by damaged wild tobacco attract Geocoris bugs which attack herbivores, most importantly young herbivorous Manduca larvae: each Manduca larva, if allowed to grow to full size, can consume multiple full-grown wild tobacco plants! The emission of specific GLVs, including (E)-2-hexenal and related compounds, increases as soon as freshly hatched Manduca larvae start feeding on leaves and so Geocoris can tell whether the GLVs come from Manduca feeding as opposed to any other damage. In contrast, proteinase inhibitors (PIs) are synthesized in the leaves to interfere with the digestion of leaf proteins and thus render the plant less nutritious to herbivores; hence, they can weaken feeding caterpillars. Both GLVs and PIs have been shown to reduce the number of particular herbivores, or the amount of damage they cause, for plants growing in nature over the course of short field trials. This time, researchers asked the question: do these compounds increase yield, i.e. reproduction, over the full growing season of a plant? In other words, are plants which produce these compounds really fitter than those that don't?

In the summers of 2010 and 2011, Meredith Schuman, Kathleen Barthel and Ian Baldwin performed field experiments with
'/>"/>

Contact: Ian T. Baldwin
baldwin@ice.mpg.de
49-364-157-1101
Max Planck Institute for Chemical Ecology
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. LAMIS -- a green chemistry alternative for laser spectroscopy
2. Green Oakley Cluster to double OSC computing power
3. UH makes Princeton Reviews Green List 3 years in a row
4. Gladstone scientist Warner C. Greene receives Washington University School of Medicine Alumni Award
5. Analysis of speed of Greenland glaciers gives new insight for rising sea level
6. A practical guide to green products and services
7. Old aerial photos supply new knowledge on glaciers in Greenland
8. Weizmann Institute solar technology to convert greenhouse gas into fuel
9. Steel-strength plastics -- and green, too!
10. Ancient global warming allowed greening of Antarctica
11. UCLAs Yi Tang receives Presidential Green Chemistry Challenge Award from EPA
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Green leaf volatiles increase plant fitness via biocontrol
(Date:7/10/2014)... NEW YORK , June 27, 2014 /PRNewswire/ ... against Provectus Biopharmaceuticals, Inc. ("Provectus" or the "Company")(NYSE-MKT: ... action, filed in United States District Court, Middle ... Division, is on behalf of a class consisting ... otherwise acquired Provectus securities between December 17, 2013 ...
(Date:7/10/2014)... -- NXT-ID, Inc., (OTCQB: NXTD) a biometric authentication company focused on the ... was interviewed on July 1 st on the ... . Mr. Pereira discusses the company,s next generation smart wallet ... the Wocket™ aims to replace a traditional wallet with a ... tells Gino he has never heard of the Wocket ...
(Date:7/10/2014)... GOTHENBURG, Sweden , July 8, 2014 ... FPC1021 has won a new design win (DW). An Asian ... targeted date for mass production start in August 2014.   ... an Asian smartphone OEM, which has a planned date for ... received an initial ramp order of SEK 5M, for delivery ...
Breaking Biology News(10 mins):SHAREHOLDER ALERT: Pomerantz Law Firm Announces the Filing of a Class Action against Provectus Biopharmaceuticals, Inc. and Certain Officers - PVCT 2SHAREHOLDER ALERT: Pomerantz Law Firm Announces the Filing of a Class Action against Provectus Biopharmaceuticals, Inc. and Certain Officers - PVCT 3Security and Your Money: Tampa Bay Radio Host Cedric Harris Talks to NXT-ID CEO Mr. Gino Pereira about the Wocket Smart Wallet 2Security and Your Money: Tampa Bay Radio Host Cedric Harris Talks to NXT-ID CEO Mr. Gino Pereira about the Wocket Smart Wallet 3Security and Your Money: Tampa Bay Radio Host Cedric Harris Talks to NXT-ID CEO Mr. Gino Pereira about the Wocket Smart Wallet 4FPC Wins DW and Initial Ramp Order for FPC1021 Touch Sensor for Flagship Smartphone from Asian OEM 2
... biology textbooks, a single genetic mutation is rarely enough to ... a series of mutations that work together to trigger tumor ... that distinct cancer-causing mutations in neighboring cells can cooperate to ... Cancer biologists have long known that it takes ...
... , CARDIFF, Calif. , Jan. 13 ... Mind, Inc. was in high demand at this year,s Consumer Electronics Show ... many interviews with major media organizations during the 3 day event. Among ... Up TV , with Mark Albertson . Additionally, we have been ...
... Cold Spring Harbor, N.Y. Two scientists from ... international team that has discovered a genetic mutation that ... is a devastating inherited neurological disease that is very ... often among Ashkenazi Jews. The study was ...
Cached Biology News:Mutations in different cells cooperate to set the stage for cancer 2Mutations in different cells cooperate to set the stage for cancer 3Jedi Mind Receives Vast Media Coverage at CES in Las Vegas 2Jedi Mind Receives Vast Media Coverage at CES in Las Vegas 3CSHL scientists use next-gen sequencing to rapidly discover genetic cause of devastating disorder 2
(Date:7/10/2014)... quantum Hall effect in bilayer graphene and shown that ... an electric field. , The fractional quantum Hall ... sheets are exposed to large magnetic fields, is a ... electrons behave as a single system. However, while the ... details of this collective behavior remain not well understood, ...
(Date:7/10/2014)... recent study by researchers at the University of ... physical mechanisms governing the interplay of spin and ... limits of ultrafast spintronic devices for data storage ... charge as well as spin-angular momentum. In a ... there is no spin current," explained David Cahill, ...
(Date:1/15/2014)... , Jan. 15, 2014  Bill Jacobs Automotive, a group of ... teaming up with the Heartland Blood Center and offering free ... The drive takes place Saturday, Jan. 18 at the Bill ... p.m. (Photo: http://photos.prnewswire.com/prnh/20140115/MN46637 )  The ...
(Date:1/15/2014)... Cynvenio, a cancer diagnostics company focused ... analysis of tumor cells in the bloodstream, today announced ... decision support application powered by CollabRx, Inc. , ... test, Therapy Finder will provide breast cancer patients and ...
Breaking Biology Technology:Columbia researchers observe tunable quantum behavior in bilayer graphene 2Columbia researchers observe tunable quantum behavior in bilayer graphene 3University of Illinois study advances limits for ultrafast nano-devices 2Join the Bill Jacobs Auto blood drive and receive a free oil change 2Cynvenio Offers New Breast Cancer Therapy Finder Application for its ClearID Breast Cancer Genomic Test 2Cynvenio Offers New Breast Cancer Therapy Finder Application for its ClearID Breast Cancer Genomic Test 3
... can make a professor lose his cool more than having ... for making a mistake are endless: a DVD made specifically ... skipping around uncontrollably or even an overhead projector falling to ... duty of solving such technical issues and more falls on ...
... Madison, Wis. - If wireless keeps growing at its ... get their work done, says a wireless channel manager for ... at a recent Accelerate Madison program, saying the ... for corporations over the next few years. With costs falling ...
... Eau Claire, Wis . Faculty in the chemistry ... more than $600,000 in grant money from the National ... help them purchase state-of-the-art instrumentation and support faculty-student research. ... a department like ours and it'll have a significant ...
Cached Biology Technology:Interest drives investment of instructional technology 2Interest drives investment of instructional technology 3Interest drives investment of instructional technology 4Cisco manager touts wireless advantages 2UW-Eau Claire chemistry faculty get $600,000 in NSF grants 2UW-Eau Claire chemistry faculty get $600,000 in NSF grants 3
... E-PAGE Gels easier and more efficient by ... several types of pre-cut pre-assembled membrane/filter paper ... 13.5 cm E-PAGE Gels*. The available nitrocellulose ... western transfer of proteins (Figure 1 Table ...
... carbohydrate analysis standard is a lyophilized ... sugar alcohol; molecular weights range from ... provided for use with the Aminex ... kit for column testing or semiquantitative ...
... kit was tested on rat tissue extracts (liver, ... ( S. cerevisae ) extract. It was also ... and cell lines. Application: A simple and reliable ... based on the detection of the inorganic phosphate ...
... is the condition in which a lack ... and the various antioxidants. Oxidative stress ... of several diseases, including artherosclerosis, chronic inflammatory ... several antioxidant systems that are very important ...
Biology Products: