The Surprisingly Similar Glycomes of Maize and Arabidopsis Golgi
Research, The Plant Cell, The Plant Cell: In a NutshellOkekeogbu et al. compare the glycomes and proteomes of the Golgi in grasses and dicots, finding that the differences in cell wall architecture are not reflected in differences between polysaccharides produced in the Golgi. Plant Cell https://doi.org/10.1105/tpc.18.00755
Background: Grasses and other…
Generating novel, dual herbicide-resistant crops using CRISPR-mediated gene editing (Plant Physiol)
Plant Science Research WeeklyThere is an ever-growing need for novel herbicides as more weeds are becoming resistant to commonly used herbicides. In a recent report from Hu et al., the authors identified that a previously described cellulose biosynthesis-inhibiting chemical, C17, possesses an herbicidal quality. The authors showed…
Acetylation in the Assembly of Cell-Wall Architecture
Research, The Plant Cell, The Plant Cell: In a NutshellZhang et al. discover a deacetylase from rice that highlights the importance regulating acetylation in the cell wall. Plant Cell https://doi.org/10.1105/tpc.18.00894
By Baocai Zhang and Yihua Zhou, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences
Background: Plant cells…
Side Chains Influence Pectin Properties
Research, The Plant Cell, The Plant Cell: In a NutshellŠola et al. examine how galactose alters rhamnogalacturonan-I properties. Plant Cell https://doi.org/10.1105/tpc.18.000954
By Krešimir Šola and George W. Haughn
Department of Botany, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
Background: Pectin is a component of the plant…
Glycomic analysis of plant endomembrane vesicles (Plant Cell)
Plant Science Research WeeklyEndomembrane vesicles carry not only secreted proteins but also carbohydrates for cell wall synthesis, yet relatively less is know about this latter process. Wilkop et al. describe a method to investigate the glycan contents of specific subsets of vesicles, to begin to understand how these cargos are…
Introducing curcumin biosynthesis in Arabidopsis enhances lignocellulosic biomass processing (Nature Plants)
Plant Science Research WeeklyLignin, polymerized from aromatic monolignols, provides strength to cell walls but its resistance to enzymatic degradation thwarts efforts to isolate cellulosic carbohydrates from cell walls for biofuels and other applications. It has been shown that lignin’s properties can be altered by the incorporation…
Xylan and lignin deposition are independent of cellulose in the secondary cell wall (Plant Cell)
Plant Science Research WeeklyThe secondary cell wall (SCW) plays an important role in the structural integrity of plants and is key to efficient water conductivity. Despite the important role of the SCW, little known about how and when SCW components are assembled. Currently, it is understood that cellulose deposition is a precursor…
Reviews: The regulation of cellulose biosynthesis in plants, and secondary cell wall biosynthesis
Plant Science Research WeeklyPlant cell walls are complex and somewhat difficult to study, but also idespensible for plants and central to many of the ways that people use plants (from wood to fibers to fuels). Two new articles review diverse aspects of plant cell wall synthesis. Polko and Kieber (Plant Cell 10.1105/tpc.18.00760…
CRISPR Mutants Shed Light on Pectin’s Role in Tomato Fruit Softening
Plant Physiology, Plant Physiology: On The InsideTomato (Solanum lycopersicum) fruits undergo pronounced softening during ripening. Softening is important for flavor development and overall palatability, but also impacts fruit storage, transportability, and shelf life. Shelf life is a particularly important quality trait of tomato fruits affected by…