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The cell biology oflignification inhigher plants Jaime BarrosHenrik SerkIrene Granlund2015 год

The cell biology of lignification in higher plants
review

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Аннотация: Background Lignin is a polyphenolic polymer that strengthens and waterproofs the cell wall of specialized plant cell types. Lignification is part of the normal differentiation programme and functioning of specific cell types, but can also be triggered as a response to various biotic and abiotic stresses in cells that would not otherwise be lignifying. Scope Cell wall lignification exhibits specific characteristics depending on the cell type being considered. These characteristics include the timing of lignification during cell differentiation, the palette of associated enzymes and substrates, the sub-cellular deposition sites, the monomeric composition and the cellular autonomy for lignin monomer production. This review provides an overview of the current understanding of lignin biosynthesis and polymerization at the cell biology level. Conclusions The lignification process ranges from full autonomy to complete co-operation depending on the cell type. The different roles of lignin for the function of each specific plant cell type are clearly illustrated by the multiple phenotypic defects exhibited by knock-out mutants in lignin synthesis, which may explain why no general mechanism for lignification has yet been defined. The range of phenotypic effects observed include altered xylem sap transport, loss of mechanical support, reduced seed protection and dispersion, and/or increased pest and disease susceptibility.
Год издания: 2015
Авторы: Jaime Barros, Henrik Serk, Irene Granlund, Edouard Pesquet
Издательство: Oxford University Press
Источник: Annals of Botany
Ключевые слова: Plant Gene Expression Analysis, Horticultural and Viticultural Research, Lignin and Wood Chemistry
Другие ссылки: Annals of Botany (PDF)
Annals of Botany (HTML)
Europe PMC (PubMed Central) (PDF)
Europe PMC (PubMed Central) (HTML)
PubMed Central (HTML)
PubMed (HTML)