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

doi:10.1093/jxb/erv510

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Article

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

Journal of experimental botany - 1 Mar 2016

Hu Ruibo, Li Junling, Wang Xiaoyu, Zhao Xun, Yang Xuanwen, Tang Qi, He Guo, Zhou Gongke, Kong Yingzhen

Abstract excerpt

During differentiation, the Arabidopsis seed coat epidermal cells synthesize and secrete large quantities of pectinaceous mucilage into the apoplast, which is then released to encapsulate the seed upon imbibition. In this study, we showed that mutation in Irregular Xylem 14 (IRX14) led to a mucilage cohesiveness defect due to a reduced xylan content. Expression of IRX14 was detected specifically in the seed coat...

Topics

Arabidopsis
Arabidopsis Proteins
Cellulose
Crystallization
Gene Expression Regulation, Plant
Immunoblotting
Macromolecular Substances
Mutation
Pentosyltransferases
Plant Mucilage

Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

Seeds

Solubility

Spectroscopy, Fourier Transform Infrared

Water

Xylans

Xylose

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Identifiers

PMID: 26834178
DOI: 10.1093/jxb/erv510
PMCID: PMC4762376

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

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Xylan synthesized by Irregular Xylem 14 (IRX14) maintains the structure of seed coat mucilage in Arabidopsis.PMID 26834178Read ↗

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

KNAT7 regulates xylan biosynthesis in Arabidopsis seed-coat mucilage.Semantic proximity Read ↗

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

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

Xylan clustering on the pollen surface is required for exine patterning.Semantic proximity Read ↗

The DUF579 domain containing proteins IRX15 and IRX15-L affect xylan synthesis in Arabidopsis.Semantic proximity Read ↗

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

CESA5 is required for the synthesis of cellulose with a role in structuring the adherent mucilage of Arabidopsis seeds.Semantic proximity Read ↗

Arabidopsis genes IRREGULAR XYLEM (IRX15) and IRX15L encode DUF579-containing proteins that are essential for normal xylan deposition in the secondary cell wall.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 ↗

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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