Highlights•Hemicelluloses can interact with lignin through covalent cross-links in plant cell
walls.•Different reaction mechanisms can lead to cross-linking using diverse hemicellulose …

Contents Summary 1703 I. Introduction 1703 II. Cellulose biosynthesis 1705 III. Xylan
biosynthesis 1709 IV. Glucomannan biosynthesis 1713 V. Lignin biosynthesis 1714 VI …

The chemical complexity of lignin remains a major challenge for lignin valorization into
commodity and fine chemicals. A knowledge of the lignin features that favor its valorization …

Covering: Up to 2019 Phenolic cross-links and phenolic inter-unit linkages result from the
oxidative coupling of two hydroxycinnamates or two molecules of tyrosine. Free dimers of …

A transformation in plant cell wall evolution marked the emergence of grasses, grains and
related species that now cover much of the globe. Their tough, less digestible cell walls …

Although cell wall polymers play important roles in the tolerance of plants to abiotic stress,
the effects of salinity on cell wall composition and metabolism in grasses remain largely …

It has been 20 years since Brachypodium distachyon was suggested as a model grass
species, but ongoing research now encompasses the entire genus. Extensive …

Xylan is the second most abundant polysaccharide in plant biomass. It is a crucial
component of cell wall structure as well as a significant factor contributing to biomass …

The 4-coumarate: coenzyme A ligase (4CL) is a key enzyme that contributes to channeling
metabolic flux in the cinnamate/monolignol pathway, leading to the production of …

The hydroxycinnamic acids p‐coumaric acid (pCA) and ferulic acid (FA) add diversity to the
portfolio of products produced by using grass‐fed lignocellulosic biorefineries. The level of …