Polysaccharides and Plant Cell Walls

In silico analysis reveals the structural basis of TomEP specificity, a tomato extensin peroxidase

This paper uses in silico analysis to determine the structural basis of TomEP specificity for crosslinking extensin monomers, revealing key residues and motifs involved in substrate binding.

CESA7 and microtubules pattern complex secondary cell walls in explosive fruit

This study identifies CESA7 and microtubules as key factors in shaping the patterned secondary cell walls in explosive fruit endb cells, which enable seed dispersal.

A single-domain expansin-like protein from Gloeophyllum trabeum able to cleave xylan

The paper identifies a catalytic activity in a fungal expansin-like protein, challenging the traditional view of ERPs as non-catalytic.

Golgi-Localized Mannanases Sustain Hemicellulose Biosynthesis

The paper identifies Arabidopsis MAN2/5 enzymes as key regulators of hemicellulose biosynthesis by cleaving insoluble β-mannan in the Golgi.

Genome-wide, evolutionary, and stress-responsive landscape of the Pectin methylesterase gene family in cucumber and muskmelon

This study characterizes the Pectin methylesterase gene family in cucumber and muskmelon, revealing evolutionary dynamics, duplication patterns, and stress-responsive regulation.

Arabidopsis GALACTURONOSYLTRANSFERASE (GAUT) 1 synthesizes a homogalacturonan tightly bound to the cell wall and required for cell expansion

This paper shows GAUT1 synthesizes HG in Arabidopsis, which is tightly bound to the cell wall and essential for cell expansion.

APETALA2 controls seed growth by regulating outer integument mechanical identity during seed coat differentiation

This study shows APETALA2 regulates seed growth by controlling mechanical properties of the outer integument layers through cell wall remodeling without affecting mechanosensitive responses.

Coping with stress: Transcriptional regulators linking cell wall integrity maintenance with primary-wall metabolism in Arabidopsis thaliana

The phosphatase PP2C12 is a negative player in LRX-RALF-FER-mediated cell wall integrity sensing

The paper identifies PP2C12 as a negative regulator of LRX1-RALF-FER signaling in Arabidopsis, modulating FER activity to fine-tune cell wall integrity sensing.

Gene coexpression network analysis of galactomannan biosynthesis and endosperm maturation in species of the genus Coffea

The paper uses gene coexpression network analysis to identify DREB2D as a major regulator of galactomannan biosynthesis in coffee endosperm.

GT61 β-1,2-xylosyltransferases define a conserved xylan modification in gymnosperm and Arabidopsis primary cell walls

The paper identifies a conserved β-1,2-xylosyl modification in primary cell walls of gymnosperms and Arabidopsis, showing it is introduced by GT61 glycosyltransferases.

Synthetic pectin-cellulose nanofiber capsule provides minimal model capturing mechanics of a regenerating plant cell wall

The paper constructs a synthetic pectin-cellulose nanofiber capsule to mimic the mechanical properties of regenerating plant cell walls and finds that thickness-dependent stiffness is similar to natural walls.

The Arabidopsis WAVE/SCAR Protein BRICK1 Associates with Cell Edges and Plasmodesmata

This study identifies BRK1, a WAVE/SCAR complex component, as localized to plasmodesmata and cell edges in Arabidopsis, suggesting its role in regulating actin dynamics at these structures.

The Building Blocks of Early Land Plants: Glycosyltransferases and Cell Wall Architecture in the model liverwort Marchantia polymorpha

This study analyzes cell wall glycans and glycosyltransferases in the liverwort Marchantia polymorpha, revealing unique features and developing a resource for genetic studies.

Rapid High-Resolution Analysis of Polysaccharide-Lignin Interactions via Proton-Detected Solid-State NMR with Application to Eucalyptus and Spruce

This study uses 1H-detected solid-state NMR to rapidly analyze polysaccharide-lignin interactions in eucalyptus and spruce, revealing new structural insights without solubilization.

A molecular glue in plants: The lectin domain of LecRK-I.9 creates persistent plasma membrane - cell wall connections

This paper identifies the lectin domain of LecRK-I.9 as responsible for creating persistent plasma membrane-cell wall connections in plants under water stress.

Fibrous Network Nature of Plant Cell Walls Enables Tunable Mechanics for Development

This study investigates the mechanical behavior of Arabidopsis leaf epidermal cell walls under stretching, revealing nonlinear stiffening regimes and the role of cellulose microfibril deformation modes in regulating plant development.

Deep structural analysis of rhamnogalacturonan-I (RG-I) in Arabidopsis reveals new insights into pectin diversity

The paper provides a detailed structural analysis of rhamnogalacturonan-I in Arabidopsis, revealing novel structural features including O-acetylation of rhamnose residues.

Cellulose Synthase Complexes and Remorins Mediate Stress Resilience Through Cell Wall-Plasma Membrane Attachments

The paper identifies CSC and REM as mechanisms mediating plant cell resilience through cell wall-plasma membrane attachments under hyperosmotic stress.

Galactan mobilization during carbon starvation compromises cell wall-mediated fungal resistance in Arabidopsis

This study shows that galactose is reversibly released from Arabidopsis cell walls during carbon starvation, compromising fungal resistance while providing metabolic resources.

The wheat VIH2-3B, a functional PPIP5K controls the localization of fasciclin-like arabinogalactan protein

This study identifies TaVIH2-3B as a PPIP5K that interacts with TaFLA7, affecting its localization and expression in response to drought and grain development in wheat.

Defective pollen meiosis in Arabidopsis due to combined arabinan and galactan insufficiency

This study shows that arabinan and galactan pectin accumulation in pollen mother cells is essential for successful meiosis in Arabidopsis.

Arabidopsis AtGELP53 modulates polysaccharide acetylation and defense response through oligosaccharide-mediated signaling

This study identifies AtGELP53's role in modulating polysaccharide acetylation and plant defense via oligosaccharide signaling.

Biochemical and structural characterization of glycosyltransferase family 61 proteins reveal a key determinant of sugar donor specificity

The paper characterizes two GT61 enzymes in Sorghum bicolor, identifies their functions in xylan modification, and identifies a residue critical for sugar donor specificity through structural and biochemical analysis.

Directional Cell-to-cell Transport in Plant Roots

The paper demonstrates directional cell-to-cell transport in differentiated plant roots via plasmodesmata and identifies genetic factors affecting this directionality.

In vitro Activity of Citrus IntegroPectin against Lung Cancer Cells

This study evaluates the in vitro anticancer activity of citrus IntegroPectin bioconjugates against human non-small cell lung cancer cells, finding that lemon and red orange-derived pectins are more effective than sweet orange.

IMK2-IMK3 module monitors biogenesis of nascent cell walls in land plants

The paper identifies a signaling module, IMK2-IMK3, that monitors cell plate biogenesis and coordinates it with microtubule behavior in land plants.

Intracellular trafficking of an Arabinogalactan protein SLEEPING BEAUTY influences cell wall integrity and apical tip growth in Physcomitrium patens

The paper shows that glycosylation of SLEEPING BEAUTY (SB) is essential for its secretion and vacuolar trafficking, affecting cell wall integrity and tip growth in moss.

New insights into bryophyte arabinogalactan-proteins from a hornwort and a moss model organism

The paper analyzes arabinogalactan-proteins (AGPs) in two bryophyte models, finding structural differences from angiosperms and evidence of AGP evolution in land plants.

The Cell Wall Controls Stem Cell Fate in the Arabidopsis Shoot Apical Meristem

This study shows that the cell wall controls stem cell fate in the Arabidopsis shoot apical meristem by modulating mechanical properties through pectin methylesterase expression regulated by WUS.