GDSL-domain proteins have key roles in suberin polymerization and degradation
| Autor: | Cristovāo De Jesus Vieira Teixeira, Damien De Bellis, Emanuel Schmid-Siegert, Kay Gully, Tonni Grube Andersen, Niko Geldner, Valérie Dénervaud Tendon, Joop E.M. Vermeer, Sandra Calderon, Vinay Shekhar, Christiane Nawrath, Sylvain Pradervand, Robertas Ursache |
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| Přispěvatelé: | University of Zurich, Ursache, Robertas, Geldner, Niko, Vermeer, Joop E M |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
0301 basic medicine Chemistry fungi Protein domain food and beverages Plant Science 580 Plants (Botany) 01 natural sciences Cell biology Cell wall 03 medical and health sciences chemistry.chemical_compound 030104 developmental biology 10126 Department of Plant and Microbial Biology Suberin 1110 Plant Science Extracellular Lignin Endodermis 10211 Zurich-Basel Plant Science Center Casparian strip Lateral root formation 010606 plant biology & botany |
| Zdroj: | Nature plants, vol. 7, no. 3, pp. 353-364 |
| ISSN: | 2055-0278 |
| Popis: | Plant roots acquire nutrients and water while managing interactions with the soil microbiota. The root endodermis provides an extracellular diffusion barrier through a network of lignified cell walls called Casparian strips, supported by subsequent formation of suberin lamellae. Whereas lignification is thought to be irreversible, suberin lamellae display plasticity, which is crucial for root adaptative responses. Although suberin is a major plant polymer, fundamental aspects of its biosynthesis and turnover have remained obscure. Plants shape their root system via lateral root formation, an auxin-induced process requiring local breaking and re-sealing of endodermal lignin and suberin barriers. Here, we show that differentiated endodermal cells have a specific, auxin-mediated transcriptional response dominated by cell wall remodelling genes. We identified two sets of auxin-regulated GDSL lipases. One is required for suberin synthesis, while the other can drive suberin degradation. These enzymes have key roles in suberization, driving root suberin plasticity. |
| Databáze: | OpenAIRE |
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