Know more

Our use of cookies

Cookies are a set of data stored on a user’s device when the user browses a web site. The data is in a file containing an ID number, the name of the server which deposited it and, in some cases, an expiry date. We use cookies to record information about your visit, language of preference, and other parameters on the site in order to optimise your next visit and make the site even more useful to you.

To improve your experience, we use cookies to store certain browsing information and provide secure navigation, and to collect statistics with a view to improve the site’s features. For a complete list of the cookies we use, download “Ghostery”, a free plug-in for browsers which can detect, and, in some cases, block cookies.

Ghostery is available here for free:

You can also visit the CNIL web site for instructions on how to configure your browser to manage cookie storage on your device.

In the case of third-party advertising cookies, you can also visit the following site:, offered by digital advertising professionals within the European Digital Advertising Alliance (EDAA). From the site, you can deny or accept the cookies used by advertising professionals who are members.

It is also possible to block certain third-party cookies directly via publishers:

Cookie type

Means of blocking

Analytical and performance cookies

Google Analytics

Targeted advertising cookies


The following types of cookies may be used on our websites:

Mandatory cookies

Functional cookies

Social media and advertising cookies

These cookies are needed to ensure the proper functioning of the site and cannot be disabled. They help ensure a secure connection and the basic availability of our website.

These cookies allow us to analyse site use in order to measure and optimise performance. They allow us to store your sign-in information and display the different components of our website in a more coherent way.

These cookies are used by advertising agencies such as Google and by social media sites such as LinkedIn and Facebook. Among other things, they allow pages to be shared on social media, the posting of comments, and the publication (on our site or elsewhere) of ads that reflect your centres of interest.

Our EZPublish content management system (CMS) uses CAS and PHP session cookies and the New Relic cookie for monitoring purposes (IP, response times).

These cookies are deleted at the end of the browsing session (when you log off or close your browser window)

Our EZPublish content management system (CMS) uses the XiTi cookie to measure traffic. Our service provider is AT Internet. This company stores data (IPs, date and time of access, length of the visit and pages viewed) for six months.

Our EZPublish content management system (CMS) does not use this type of cookie.

For more information about the cookies we use, contact INRA’s Data Protection Officer by email at or by post at:

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

Dernière mise à jour : Mai 2018

Menu Institutions

SPS - Saclay Plant Sciences


3 questions to Cécile Raynaud

Cécile Raynaud is a researcher at the Institute of Plant Sciences Paris-Saclay (IPS2) in Orsay. In 2014, she was awarded a CNRS bronze medal. This medal rewards the first work of this researcher, which makes her a talented specialist in her field. After obtaining a PhD in 2005 at the Institute of Plant Biology (IBP) in Orsay, she was recruited in 2007 by the French National Center for Scientific Research (CNRS).

1) Where does your interest in plant biology come from?

Plants are fascinating model organisms because they are both similar to and different from other eukaryotes. Many basic cellular processes are conserved in all eukaryotes, and plants are excellent model organisms for their dissection. Indeed, many mutations are lethal in animals whereas they are viable in plants. In addition, plants offer unique genetic resources. Moreover, one unique feature of plants is to possess stem cells that maintain their ability to divide throughout their life cycle and form new organs and tissues. The analysis of the mechanisms that allow the faithful transmission of genetic information is thus particularly interesting. This question is even more relevant considering that plants are sessile organisms constantly exposed to fluctuations in the environment that can impinge on cell division or even cause DNA damage.

2) Could you explain the subject of your research?

I am interested in the regulation of plant cell division and in the mechanisms that govern both the onset of cell proliferation and the transition towards cell differentiation or even programmed cell death. In this context, I specifically focused on the role of chloroplast signals in the control of these transitions. As a team we also analyze the mechanisms that allow faithful transmission of genetic and epigenetic information in proliferating cells, as well as how the chromatin organization required for cell differentiation is established and transmitted during development.

3) What is the advantage of belonging to the SPS LabEx for you?

The SPS LabEx has strengthened the relationships between the laboratories involved in this project. For example, we have obtained joint funding with the group of Mathilde Grelon and Christine Mézard at IJPB to develop a new research project. In addition, LabEx organizes stimulating seminars by inviting renowned researchers.