GDSL-domain proteins have key roles in suberin polymerization and degradation.

Details

Serval ID
serval:BIB_30FC7AE0DD86
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
GDSL-domain proteins have key roles in suberin polymerization and degradation.
Journal
Nature plants
Author(s)
Ursache R., De Jesus Vieira Teixeira C., Dénervaud Tendon V., Gully K., De Bellis D., Schmid-Siegert E., Grube Andersen T., Shekhar V., Calderon S., Pradervand S., Nawrath C., Geldner N., Vermeer JEM
ISSN
2055-0278 (Electronic)
ISSN-L
2055-0278
Publication state
Published
Issued date
03/2021
Peer-reviewed
Oui
Volume
7
Number
3
Pages
353-364
Language
english
Notes
Publication types: Journal Article
Publication Status: ppublish
Abstract
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.
Pubmed
Web of science
Create date
15/03/2021 15:01
Last modification date
17/04/2021 6:33
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