The team of Luis Lopez-Molina demonstrates that maternal and environmental control of seed dormancy is carried out through novel epigenetic mechanisms of RNA interference. This study, published on March 26, 2019 in eLife, reveals that similar processes enable to transmit both the maternal imprint and that of temperatures present during the development of the seed.
Une étude à laquelle ont collaboré Athanasia Tzika et Michel Milinkovitch démontre comment des signaux génétiques et mécaniques se combinent pour permettre la formation d’un réseau organisé de plumes chez les oiseaux, leur permettant de voler. Les résultats ont été publiés le 21 février 2019 dans PLOS Biology.
Vidéo : formation des plumes chez un embryon de poulet
Operons were thought to be absent in plants. The group of Michael Hothorn now reports the identification of an operon-like transcript in plants that allows for the concerted expression of a previously unknown cell-cycle regulator and a metabolic enzyme. This highly unusual transcript is conserved across the entire plant kingdom and is required for plant embryo development and growth. This study was published on February 8, 2019 in Nature Plants.
The Lelio Orci Price has been attributed to Jean-Claude Martinou for his work on the control of mitochondrial organisation and physiology. His research group has made fundamental discoveries on the molecular mechanisms controlling the shape of mitochondria, their ability to import and to process metabolites, and to adapt to various metabolic situations.
The official award ceremony will take place on 15 February 2019 at the LS2 Annual Meeting 2019
The ability of Hydra to regenerate or maintain a single head results from a subtle balance between activating and inhibiting activities. The team of Brigitte Galliot has discovered the identity of the inhibitor and deciphered the dialogue between these two antagonistic activities. This study has been published on January 18, 2019 in Nature Communications.
The team of Paul Guichard and Virginie Hamel has succeeded in reconstructing the frame of a cell’s cilium in vitro. This study, published on January 17, 2019 in Science, reveals the mechanism and dynamics of ciliary structures’ assembly, as well as the crucial role of tubulin in preventing their uncontrolled formation.
Clip: Microtubules doublets formed in vitro
The group of Paul Guichard has developed a technique to visualize cellular elements with a resolution unequalled in optical microscopy. Published on December 17, 2018 in Nature Methods, the results demonstrate how the researchers have succeeded in enlarging biological samples without deforming them and revealing details at a nanometric scale.
The team of Jan Pawlowski has developed an approach that combines genomics and machine learning tools to explore the microbial biodiversity of ecosystems. This new approach, published on December 13, 2018 in Trends in Microbiology, will enable the development of very efficient routine biomonitoring programs.