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KNAT7 regulates xylan biosynthesis in Arabidopsis seed-coat mucilage.

Journal of experimental botany - 6 Jul 2020

Wang Yiping, Xu Yan, Pei Shengqiang, Lu Mingmin, Kong Yingzhen, Zhou Gongke, Hu Ruibo

Abstract excerpt

As a major hemicellulose component of plant cell walls, xylans play a determining role in maintaining the wall structure. However, the mechanisms of transcriptional regulation of xylan biosynthesis remain largely unknown. Arabidopsis seed mucilage represents an ideal system for studying polysaccharide biosynthesis and modifications of plant cell walls. Here, we identify KNOTTED ARABIDOPSIS THALIANA 7 (KNAT7) as a...

Topics

Arabidopsis
Arabidopsis Proteins
Cell Wall
Gene Expression Regulation, Plant
Mutation
Plant Mucilage
Polysaccharides
Repressor Proteins
Seeds
Xylans

Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

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PMID: 32277756
DOI: 10.1093/jxb/eraa189

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 31 Aug 2026.

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KNAT7 regulates xylan biosynthesis in Arabidopsis seed-coat mucilage.PMID 32277756Read ↗

Highly Branched Xylan Made by IRREGULAR XYLEM14 and MUCILAGE-RELATED21 Links Mucilage to Arabidopsis Seeds.Semantic proximity Read ↗

Xylan synthesized by Irregular Xylem 14 (IRX14) maintains the structure of seed coat mucilage in Arabidopsis.Semantic proximity Read ↗

KNAT7 positively regulates xylan biosynthesis by directly activating IRX9 expression in Arabidopsis.Semantic proximity Read ↗

Two β-glucuronosyltransferases involved in the biosynthesis of type II arabinogalactans function in mucilage polysaccharide matrix organization in Arabidopsis thaliana.Semantic proximity Read ↗

A review of xylan and lignin biosynthesis: foundation for studying Arabidopsis irregular xylem mutants with pleiotropic phenotypes.Semantic proximity Read ↗

Starting to gel: how Arabidopsis seed coat epidermal cells produce specialized secondary cell walls.Semantic proximity Read ↗

The Class II KNOX gene KNAT7 negatively regulates secondary wall formation in Arabidopsis and is functionally conserved in Populus.Semantic proximity Read ↗

The Arabidopsis irregular xylem8 mutant is deficient in glucuronoxylan and homogalacturonan, which are essential for secondary cell wall integrity.Semantic proximity Read ↗

Xylans Provide the Structural Driving Force for Mucilage Adhesion to the Arabidopsis Seed Coat.Semantic proximity Read ↗

MYB-bHLH-TTG1 in a Multi-tiered Pathway Regulates Arabidopsis Seed Coat Mucilage Biosynthesis Genes Including PECTIN METHYLESTERASE INHIBITOR14 Required for Homogalacturonan Demethylesterification.Semantic proximity Read ↗

The Arabidopsis DUF231 domain-containing protein ESK1 mediates 2-O- and 3-O-acetylation of xylosyl residues in xylan.Semantic proximity Read ↗

MUCILAGE-MODIFIED4 encodes a putative pectin biosynthetic enzyme developmentally regulated by APETALA2, TRANSPARENT TESTA GLABRA1, and GLABRA2 in the Arabidopsis seed coat.Semantic proximity Read ↗

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