Related Experiment Video
Updated: Jun 30, 2026
09:10
Synthesis of Masarimycin, a Small Molecule Inhibitor of Gram-Positive Bacterial Growth
Published on: January 7, 2022
Laying down the bricks: logistic aspects of cell wall biosynthesis
Daniela A Geisler1, Arun Sampathkumar, Marek Mutwil
1Max Planck Institute for Molecular Plant Physiology, Am Muehlenberg 1, 14476 Potsdam, Germany.
Current Opinion in Plant Biology
|September 27, 2008
Summary
Plant cell wall polysaccharide synthesis requires coordination between the plasma membrane and Golgi apparatus. Understanding this link, including vesicle trafficking, is key to improving plant biomass and cell wall composition.
Area of Science:
- Plant Biology
- Cell Biology
- Biochemistry
Background:
- Plant cell wall polysaccharides are synthesized in the plasma membrane and Golgi apparatus.
- Coordination between these synthesis sites and the secretory pathway is crucial for plant growth.
- Existing research primarily focuses on synthesis and modification, with less on inter-compartmental coordination.
Purpose of the Study:
- To explore the coordinated synthesis of plant cell wall polysaccharides.
- To investigate the link between the secretory machinery and polysaccharide production.
- To understand the role of vesicle trafficking in cell wall assembly.
Main Methods:
- Analysis of recent research papers on plant cell wall synthesis and trafficking.
- Examination of studies on the trans-Golgi network's role in plant cell function.
- Review of findings related to proton pumping activity and its impact on cell wall components.
Main Results:
- Impairment of trans-Golgi network proton pumping disrupts plant growth and Golgi morphology.
- Deficiencies in cellulose are observed when proton pumping activity is affected.
- Evidence suggests a need for a coordinated system linking wall signaling, carbohydrate synthesis, and vesicle transport.
Conclusions:
- A fine-tuned system is necessary to integrate signals from the cell wall, carbohydrate synthesis, and vesicle shuttling.
- Understanding the coordination between cell wall synthesis and the secretory pathway offers potential for modulating plant biomass.
- Further research into these linked processes can lead to strategies for enhancing plant biomass production.
More Related Videos
Related Concept Videos
01:28Peptidoglycan Synthesis
Structure of PeptidoglycanPeptidoglycan is a vital structural component of the bacterial cell wall, providing mechanical strength and shape to the cell. It consists of repeating units of two sugars—N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM)—linked by β-1,4 glycosidic bonds. These sugar chains are cross-linked by short peptide chains, forming a mesh-like polymer that surrounds the bacterial plasma membrane.Cytoplasmic Phase – Precursor SynthesisPeptidoglycan biosynthesis begins in...
01:23Inhibitors of Gram-positive Cell Wall Synthesis
Bacterial cell walls are typically rigid structures composed mainly of peptidoglycan, a mesh-like polymer that provides mechanical strength and maintains cell shape. The synthesis of peptidoglycan is a crucial process in bacterial growth and serves as a primary target for many antibiotics.Mechanism of Action of Beta-Lactam AntibioticsBeta-lactam antibiotics, such as penicillin, inhibit peptidoglycan synthesis in actively growing cells. These antibiotics share a characteristic four-membered...
01:02Role of Microtubules in Cell Wall Deposition
Microtubules are small hollow tubes in eukaryotic cells. The cell wall microtubules are polymerized dimers of two globular proteins, α-tubulin and β-tubulin, two globular proteins. With a diameter of about 25 nm, microtubules are the widest components of the cytoskeleton. They help the cell resist compression and provide a track along which vesicles move through the cell or pull replicated chromosomes to opposite ends of a dividing cell. Microtubules go through quick cycles of disassembly and...
01:22Bacterial Cell Wall
The bacterial cell wall is an essential structural component that encases the plasma membrane, preserving cellular integrity, determining shape, and protecting against osmotic stress. This rigid yet flexible structure primarily comprises peptidoglycan, a polymer that forms a mesh-like matrix conferring mechanical strength and flexibility.Peptidoglycan Composition and StructurePeptidoglycan, the core of the bacterial cell wall, comprises alternating units of N-acetylglucosamine (NAG) and...
01:29Archaeal Cell Wall
Archaeal cell walls are structurally and compositionally distinct from their bacterial counterparts, lacking the characteristic peptidoglycan layer found in most bacteria. Instead, archaeal cell walls exhibit remarkable diversity, utilizing materials such as pseudomurein, polysaccharides, and proteins to construct their protective outer layers. This structural flexibility is closely tied to archaea's ecological adaptability.S-Layers: The Common Archaeal Cell WallThe S-layer is the most...
02:43Plant Cell Wall
The plant cell wall gives plant cells shape, support, and protection. As a cell matures, its cell wall specializes according to the cell type. For example, the parenchyma cells of leaves possess only a thin, primary cell wall.Collenchyma and sclerenchyma cells, on the other hand, mainly occur in the outer layers of a plant's stems and leaves. These cells provide the plant with strength and support by either partially thickening their primary cell wall (i.e., collenchyma), or depositing a...