The early 20th-century artist Robert Delaunay began painting at a pivotal moment in art history, namely during the chemical industry revolution, when the number of pigments available on the market increased. Today scientists are trying to solve the mystery of the painter’s colours, his purples in particular. One of the objectives of this research is to generate knowledge essential to conserving the works.

Léna, cinq ans, pose la question au micro des P’tits bateaux. Et c’est le chercheur François Parcy, spécialiste des fleurs, qui lui répond et lui décrit cette énorme plante que l'on retrouve dans les ...

The ER exit site is a portal on the endoplasmic reticulum where secretory proteins depart. Here, the authors revealed that a balanced phosphorylation state of the ER exit site proteins TANGO1 and Sec1...

La science ouverte va-t-elle prendre un nouveau tournant à l’heure d’un contexte international tendu et d’une IA en plein essor pour le meilleur comme pour le

Is open science on the cusp of taking a new turn in the current context of international tension twinned with AI's rapid rise, for better or for worse?

Epithelial cell polarization is essential for many physiological processes, including tissue morphogenesis, nutrient absorption, barrier integrity, and directional secretion. A defining feature of suc...

Bruno Guillotin has joined the IPS2 unit (Institute of Plant Sciences Paris-Saclay) as a CNRS Research Scientist. He was recruited in February 2025.   After studying Plant Biology and Physiology, he completed his PhD between 2013 and 2016 at the Plant Science Research Laboratory (LRSV – Toulouse) under the supervision of Guillaume Bécard and Jean-Philippe Combier. His doctoral work focused on the autoregulation of arbuscular mycorrhizal symbiosis in Medicago truncatula.   Following his PhD, he turned his attention to the study of root development in various plant species as a postdoctoral researcher in Kenneth Birnbaum’s group at New York University. There, supported by a Human Frontiers Long-Term Fellowship, he developed numerous protocols for single-cell transcriptomics (single-cell RNA-seq), which he implemented to study gene evolution across agronomically relevant species (maize, sorghum, millet), as well as to investigate cell regeneration in the roots of Arabidopsis thaliana.   In 2025, he was appointed as a CNRS Research Scientist and was also awarded the CNRS–INSERM ATIP-Avenir grant. At IPS2, Bruno Guillotin’s research focuses on understanding how plant cells communicate through plasmodesmata, aiming to identify which proteins and peptides move from one cell to another and contribute to organ morphogenesis in plants. His work combines single-cell RNA-seq, proteomics, genomics, and bioinformatics approaches.   Contact email : bruno.guillotin@universite-paris-saclay.fr

(2026) Sun 4 Oct - Thu 8 [EDT]: We are delighted to announce that the Auxin2026 meeting will take place in the Algarve, Portugal between October 4th-8th 2026. This quadrennial event brings together…

The Golgi apparatus has an intricate spatial structure characterized by flattened membrane-bound compartments, known as cisternae. Cisternae house integral membrane enzymes that catalyse glycosylation...

BET1, GOSR2, and STX5 variants can cause fatal inherited diseases, including epilepsies, muscular dystrophy, and multisystemic disorders. Together ...

The transbilayer distribution of plasma membrane cholesterol remains uncertain despite repeated analysis. Here we propose a new mechanism driving cholesterol sidedness: sterols form simple stoichiomet...

Brassinosteroids are essential plant hormones that play a central role in regulating growth, development, and stress responses. Their impact on plant architecture and productivity makes them attractiv...