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 UB AgroSup CNRS


Mycorrhiza : mechanisms and management

Mycorrhiza : mechanisms and management

Team Leader : Daniel WIPF

The research focus of our group is the understanding of the interactions between plants and microorganisms (e.g. symbiotic fungi, oomycetes …) that contribute to the improvement of the plant fitness (nutrition, defense/resistance to pathogens or to biotic stress such as drought or heavy metals). Our research works is organized at various integrating levels.

At the plant cell level, we are interested in the early signaling pathways triggered by molecules from microorganisms (mutualistic and pathogenic). Our work aims to explore the lateral segregation of lipids and proteins (e.g NADPH producer, transporters) into plasma membrane domains and to identify the cell determinants of such segregation in order to understand its role in the signaling pathways. In addition, we are analyzing the role of intracellular trafficking to and from the plasma membrane, in particular the clathrin-mediated endocytosis, in the signaling. Finally, we are interested in knowing how signaling lipids and reactive oxygen species produced by NAPHP oxidases contribute to the early steps of defense signaling.

At the biotrophic interface, our research work focuses on the arbuscular mycorrhizal (AM) symbiosis, formed between the majority of land plants and the most common group of mycorrhizal fungi of the phylum glomeromycota. Our interests are in understanding the establishment and functioning of the mutualistic symbiosis mainly at the nutrient exchange level (transportome). We particularly aim at identifying and selecting sugar transporters from plant, and analyzing sugar flows along the plant and through the plasma membrane that may impact in the outcome of the plant-microbe interaction. We are also interested in fungus monosaccharide transporters that would allow direct uptake of sugars from the soil. Moreover, we also study AM formation in combined phosphate and nitrogen limited conditions allowing an altered profile of plant defense genes, very likely through the activation of NADPH oxidases.

Consequently, we also investigate how to actually use the mutualistic interaction practically in the field for optimizing the provided ecosystemic services. Indeed, establishment of an AM community through mycelia network can significantly increase nutrient absorption in starved soils, as well as water absorption and resistance to pathogens or heavy metals, therefore allowing the reduction of the application of chemical fertilizers and pesticides.

Our main model for signaling pathway and defense in pathogenic interaction is tobacco cells elicited by cryptogein secreted by the oomycete Phytophthora cryptogea. Our main symbiosis model is the association Medicago truncatula/Rhizophagus irregularis, but we also work on various plants of agronomical interest such as grape.


C. Arnould IE INRAE

L. Bonneau MC UB

K. Bouhidel MC UB

P.E. Courty CR INRAE

C. Der IE UB

N. El Mjiyad AT INRAE

J. Fromentin AI INRAE

P. Gerbeau-Pissot MC UB

N. Leborgne-Castel PR UB

V. Monfort-Pimet  AT INRAE

G. Recorbet CR INRAE

F. Robert TR INRAE


D. van Tuinen CR INRAE