Know more

About cookies

What is a "cookie"?

A "cookie" is a piece of information, usually small and identified by a name, which may be sent to your browser by a website you are visiting. Your web browser will store it for a period of time, and send it back to the web server each time you log on again.

Different types of cookies are placed on the sites:

  • Cookies strictly necessary for the proper functioning of the site
  • Cookies deposited by third party sites to improve the interactivity of the site, to collect statistics

Learn more about cookies and how they work

The different types of cookies used on this site

Cookies strictly necessary for the site to function

These cookies allow the main services of the site to function optimally. You can technically block them using your browser settings but your experience on the site may be degraded.

Furthermore, you have the possibility of opposing the use of audience measurement tracers strictly necessary for the functioning and current administration of the website in the cookie management window accessible via the link located in the footer of the site.

Technical cookies

Name of the cookie


Shelf life

CAS and PHP session cookies

Login credentials, session security



Saving your cookie consent choices

12 months

Audience measurement cookies (AT Internet)

Name of the cookie


Shelf life


Trace the visitor's route in order to establish visit statistics.

13 months


Store the anonymous ID of the visitor who starts the first time he visits the site

13 months


Identify the numbers (unique identifiers of a site) seen by the visitor and store the visitor's identifiers.

13 months

About the AT Internet audience measurement tool :

AT Internet's audience measurement tool Analytics is deployed on this site in order to obtain information on visitors' navigation and to improve its use.

The French data protection authority (CNIL) has granted an exemption to AT Internet's Web Analytics cookie. This tool is thus exempt from the collection of the Internet user's consent with regard to the deposit of analytics cookies. However, you can refuse the deposit of these cookies via the cookie management panel.

Good to know:

  • The data collected are not cross-checked with other processing operations
  • The deposited cookie is only used to produce anonymous statistics
  • The cookie does not allow the user's navigation on other sites to be tracked.

Third party cookies to improve the interactivity of the site

This site relies on certain services provided by third parties which allow :

  • to offer interactive content;
  • improve usability and facilitate the sharing of content on social networks;
  • view videos and animated presentations directly on our website;
  • protect form entries from robots;
  • monitor the performance of the site.

These third parties will collect and use your browsing data for their own purposes.

How to accept or reject cookies

When you start browsing an eZpublish site, the appearance of the "cookies" banner allows you to accept or refuse all the cookies we use. This banner will be displayed as long as you have not made a choice, even if you are browsing on another page of the site.

You can change your choices at any time by clicking on the "Cookie Management" link.

You can manage these cookies in your browser. Here are the procedures to follow: Firefox; Chrome; Explorer; Safari; Opera

For more information about the cookies we use, you can contact INRAE's Data Protection Officer by email at or by post at :


24, chemin de Borde Rouge -Auzeville - CS52627 31326 Castanet Tolosan cedex - France

Last update: May 2021

Menu Logo Principal Logo-Ima-ANR Logo CNRS Logo_IMA_UPEC Logo-IMA_UPMC


The scientific program of ODORSCAPE

Scientific program
An experimental framework comprised of six tasks to take into account genome to behavior levels

Choosing two mini-ecosystems and analysing the composition of their ODORSCAPES

In the first Task  (CEFE, IPE, Ecotron IdF) a screening procedure will aim at selecting the most suitable plant species/cultivars to be included in two simplified crop- tree-weed plant community systems and to be grown and treated individually or in combination.

Then, the volatile emissions of each simplified system will be collected and analysed quantitatively and qualitatively from plants exposed to high O3 and CO2 alone, or in combination and combined to thermal and hydric stresses.

Culture en écotron et piégeage des volatils

   Volatile emissions of plants grown in controlled conditions are captured and quantitatively and qualitatively analyzed

 Study the changes in metabolic pathways

For Task 2 (IPE, Ecotron IdF and CEFE) the changes in plant metabolic pathways for the production of VPCs will be investigated by transcriptomic and biochemical approaches.

The physiological status of plants will be established through measurements of water and gas exchanges in order to assess the changes in metabolic flux at the plant level, in response to global climate change.

A transcriptomic analyse to trace the physiological changes in response to growth conditions


Reconstitution of representative odorscapes

In Task 3 (CEFE, IPE and Ecosens) collections of natural headspaces of the mini ecosystems will be tested on insect behaviour.

From the results of headspace analyses and bioassays, we will reconstitute two modified odorscapes: Humid Temperate Odorscape (HTO) and Dry Temperate Odorscape (DTO) from synthetic samples of the salient compounds.

COV Michael

Expriments are performed in mini-ecosystems

Analyse the effects on moth olfaction

In Task 4 (Ecosens) the olfactory signal detection and processing for HTO and DTO odorscapes will be studied using neurobiological approaches at two levels of the male and female moth olfactory system: i) olfactory receptor neurons conducting olfactory information from the antennae to the antennal lobe, and ii) antennal lobe neurons.

We will determine how the modified odorscapes are perceived by the moths.

Then, odorscapes will be used as background odors during stimulations with signals involved in reproductive behaviors (pheromone and host-plant odor) to look for changes in encoding quality, intensity, and temporality of olfactory information.

The perception of ecollogically relevant signals (pheromone, host odor) is modulated by the sensory background. Electrophysiology and Calcium Imaging techniques allow to study these modifications and to understand how the moth sensory system analyse signal and background.


Analyse the effect of odorscape on moth behavior

In Task 5 (Ecosens) wind tunnel and 3D trajectometry will be used to measure the orientation performances to odor signals in a VPC environment, modified in intensity and quality according to changes of VPC emission profiles observed in tasks 1 and 2.

By analyzing tracks recorded in different odorant backgrounds, we will evaluate the moth capacity to adapt their orientation strategy to complex odorant environments according to preceding experience.

side view

Ecologicaly relevant odors elicit orientation behavior. 3D trajectometry is used to analyse how the orientation stragegy of a moth is modified under different odorscapes

olfactory receptors

Genomic effects of exposure to modified odorscapes

In Task 6 (Ecosens) we will investigate the effects of exposing adult moths to a VPC-enriched environment (as designed from tasks 1 and 3) on the expression of the insect olfactory transcriptome, for a global view of the molecular effects.

Evaluating modifications in the transcriptome expression via RNAseq analyses will lead to identify candidate genes involved in the modulation of the olfactory sensitivity upon changes. Special attention will be given to odorant-binding proteins and olfactory receptor encoding genes, both involved in detection, and to odorant-degrading enzymes involved in odorant clearance.

Mean term pre-exposure to odorants is known to affect the expression of genes involved in olfaction. Transcriptome analyse is used to identify which genes are affected by changes in odorscapes.