R. URSACHE - The suberinteresting role of GELP proteins

Abstract

To maintain a protected yet interconnected body, all land plants have evolved specialized and adaptive tissues that play an essential role in facilitating optimal growth and enhancing the ability to respond effectively to various environmental cues. Among these tissues are the seed coat and leaf epidermis, which undergo significant cell wall remodelling and thickening based on suberin and cutin. The mechanisms by which essential plant polyesters, such as cutin and suberin, are assembled and remodelled during plant growth and adaptation remain poorly understood. Using the tools we recently optimized for high-resolution imaging and rapid generation of Arabidopsis thaliana mutants, combined with metabolomics, tissue-specific transcriptomics, and high-resolution imaging-based methods, we aim to uncover the mechanisms controlling the activity and assembly of key enzymes in suberin and cutin assembly. Using tissue-specific transcriptomics approaches, we have identified distinct subsets of GELP proteins as potential key enzymes required for the assembly of seed coat suberin and leaf epidermal cuticle.

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Robertas Ursache dirige le groupe Plant Cell Wall Remodeling and Adaptation au CRAG de Barcelone. Il étudie comment les parois cellulaires végétales, en particulier les parois secondaires, influencent la croissance, la défense et l'adaptation des plantes. Son travail combine des outils innovants comme le CRISPR-Cas9 et la microscopie confocale.

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