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Role of Microtubules in Cell Wall Deposition01:02

Role 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...
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Chemistry of Carbohydrates03:25

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Carbohydrates are an essential part of the diet in humans and animals. Grains, fruits, and vegetables are natural sources of carbohydrates that provide energy to the body, particularly through glucose, a simple sugar that is a component of starch and an ingredient in many staple foods. The stoichiometric formula (CH2O)n, where n is the number of carbons in the molecule represents carbohydrates. In other words, the ratio of carbon to hydrogen to oxygen is 1:2:1 in carbohydrate molecules. This...
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Towards Biomimicking Wood: Fabricated Free-standing Films of Nanocellulose, Lignin, and a Synthetic Polycation
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Published on: June 17, 2014

Cellulose synthesis: a complex complex.

Marek Mutwil1, Seth Debolt, Staffan Persson

  • 1Max-Planck-Institute for Molecular Plant Physiology, Am Muehlenberg 2, Potsdam, Germany.

Current Opinion in Plant Biology
|May 20, 2008
PubMed
Summary
This summary is machine-generated.

Plant cell walls use cellulose, synthesized by cellulose synthase (CESA) complexes. New research explores CESA regulation, revealing interactions with microtubules and herbicide effects on cellulose production.

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Comprehensive Compositional Analysis of Plant Cell Walls (Lignocellulosic biomass) Part II: Carbohydrates
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Estimation of Crystalline Cellulose Content of Plant Biomass using the Updegraff Method

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10:46

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Estimation of Crystalline Cellulose Content of Plant Biomass using the Updegraff Method
12:34

Estimation of Crystalline Cellulose Content of Plant Biomass using the Updegraff Method

Published on: May 15, 2021

Area of Science:

  • Plant Biology
  • Biochemistry
  • Molecular Biology

Background:

  • Cellulose is the most abundant biopolymer, essential for plant cell wall structure.
  • Cellulose synthase (CESA) complexes synthesize beta-1,4-glucan chains at the plasma membrane.
  • Understanding CESA regulation is key to controlling cellulose production.

Purpose of the Study:

  • To explore regulatory mechanisms of cellulose synthesis.
  • To investigate the effects of herbicides on cellulose production.
  • To examine the relationship between cellulose synthesis and cytoskeletal organization.

Main Methods:

  • Utilizing advanced visualization techniques for fluorescently labeled CESA complexes.
  • Employing dual-labeling to observe cytoskeletal components and CESAs simultaneously.
  • Analyzing the impact of specific herbicides (isoxaben, 2,6-dichlorobenzonitrile) on cellulose synthesis.

Main Results:

  • Herbicides inhibiting cellulose production affect distinct synthesis aspects.
  • Dynamic feedback regulation exists between cellulose synthesis and microtubule organization.
  • CESA2 subunits show potential for substituting CESA6, indicating complex plasticity.

Conclusions:

  • Cellulose synthesis is a highly regulated process involving cytoskeletal interactions.
  • CESA complexes exhibit both specificity and plasticity in their subunit composition.
  • Further research into CESA regulation can inform strategies for modifying plant cell walls.