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The cytoskeletal architecture can be studied using different microscopic and biochemical techniques. Electron microscopy was instrumental in discovering the cytoskeletal architecture around the 1960s, which allowed obtaining structural information at a high-resolution level. However, the sample preparation procedure often limits this ability in biological samples. Several protocols have been developed over the years to optimize sample preparation. In one of the protocols known as rotary...
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Related Experiment Video

Updated: Jun 22, 2026

High Resolution Quantification of Crystalline Cellulose Accumulation in Arabidopsis Roots to Monitor Tissue-specific Cell Wall Modifications
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Published on: May 10, 2016

Pectins influence microfibril aggregation in celery cell walls: An atomic force microscopy study.

Julian C Thimm1, David J Burritt, William A Ducker

  • 1Department of Botany, University of Otago, Dunedin, New Zealand.

Journal of Structural Biology
|July 2, 2009
PubMed
Summary
This summary is machine-generated.

Selective pectin removal from celery cell walls using atomic force microscopy (AFM) revealed that microfibrils swell and aggregate. This indicates pectins influence microfibril spacing and association within plant cell walls.

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Characterizing Individual Protein Aggregates by Infrared Nanospectroscopy and Atomic Force Microscopy
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Published on: September 12, 2019

Area of Science:

  • Plant Cell Wall Biology
  • Biophysics
  • Materials Science

Background:

  • Plant cell walls provide structural support and regulate cell expansion.
  • Cellulose microfibrils are key structural components embedded in a matrix of other polysaccharides.

Purpose of the Study:

  • To investigate the impact of pectin and hemicellulose extraction on cellulose microfibril structure in celery parenchyma.
  • To quantify changes in microfibril dimensions and aggregation.

Main Methods:

  • Atomic Force Microscopy (AFM) for high-resolution imaging of cell wall material.
  • Selective chemical extraction of pectins and hemicelluloses.
  • Image analysis to measure microfibril diameters and proportions.

Main Results:

  • Selective pectin removal led to an increase in the mean diameter of cellulose microfibrils.
  • The proportion of larger microfibrils increased relative to smaller ones after pectin extraction.
  • These changes suggest microfibril swelling and increased self-association.

Conclusions:

  • Pectins play a crucial role in regulating the spacing and aggregation of cellulose microfibrils.
  • Microfibril swelling and aggregation are consequences of pectin matrix removal.
  • Findings provide insights into the dynamic nature of plant cell wall architecture.