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Related Concept Videos

Assembly of Cytoskeletal Filaments01:18

Assembly of Cytoskeletal Filaments

Cytoskeletal filaments are polymeric forms of smaller protein subunits. However, individual cytoskeletal filaments may easily disassemble or associate with other similar filaments to form rigid structures. Microfilaments, made of actin monomers, rely on actin-binding proteins to form bundles and create networks of individual actin filaments. Microtubules rely on microtubule-associated proteins (MAPs) to form sturdy cylindrical structures. However, the proteins involved in forming complex...
Microtubules in Cell Motility01:24

Microtubules in Cell Motility

Microtubules are thick hollow cylindrical proteins that help form the cytoskeleton. Microtubules have varied roles in the cell. These filaments help form cellular appendages like cilia and flagella, which are responsible for locomotion. The cilia arise from basal bodies, separated from the main body by a membrane-like structure forming the transition zone. This zone is the gate for the entry of lipids and proteins, creating a unique composition of lipids and proteins in the ciliary membrane and...
Microtubules in Cell Motility01:24

Microtubules in Cell Motility

Microtubules are thick hollow cylindrical proteins that help form the cytoskeleton. Microtubules have varied roles in the cell. These filaments help form cellular appendages like cilia and flagella, which are responsible for locomotion. The cilia arise from basal bodies, separated from the main body by a membrane-like structure forming the transition zone. This zone is the gate for the entry of lipids and proteins, creating a unique composition of lipids and proteins in the ciliary membrane and...
Adaptability of Cytoskeletal Filaments01:12

Adaptability of Cytoskeletal Filaments

The cytoskeleton is a complex dynamic structure performing varied functions based on cellular requirements. The adaptability of the individual filaments in the cytoskeleton determines their ability to perform various functions within the cell. It can undergo rapid reorganization during processes like cell division or remain stable for several hours as in the interphase. The adaptability of these filaments depends on stringent regulatory mechanisms. The microfilament and microtubules of the...
Assembly of Complex Microtubule Structures01:32

Assembly of Complex Microtubule Structures

Complex microtubule structures are present in resting cells and in dividing cells. In resting cells, they are responsible for maintaining the cellular architecture, tracks for intracellular transport, positioning of organelles, assembly of cilia and flagella. They mediate the bipolar spindle assembly for chromosomal segregation and positioning of the cell division plate in dividing cells. The formation of microtubule complex structures depends on the cell type, cell stage, and cell function.
Microtubules01:18

Microtubules

Microtubules are the thickest cytoskeletal filaments with a diameter of 25 nm. In prokaryotic organisms, microtubules are commonly found in locomotory appendages like cilia and flagella. In eukaryotic cells, microtubules form specialized extensions for moving fluid over the surface, like those found in cells lining the intestine.
Microtubules have two structurally similar globular protein subunits: α and β tubulins. In the cytosol, the α and β tubulins form a heterodimer. These αβ-heterodimers...

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Related Experiment Video

Updated: Jun 19, 2026

Visualizing Actin and Microtubule Coupling Dynamics In Vitro by Total Internal Reflection Fluorescence (TIRF) Microscopy
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Visualizing Actin and Microtubule Coupling Dynamics In Vitro by Total Internal Reflection Fluorescence (TIRF) Microscopy

Published on: July 20, 2022

Actin and microtubule cytoskeleton interactions.

Jan Petrásek1, Katerina Schwarzerová

  • 1Department of Plant Physiology, Faculty of Science, Charles University, Vinicná 5, 128 44 Prague 2, Czech Republic. petrasek@ueb.cas.cz

Current Opinion in Plant Biology
|October 27, 2009
PubMed
Summary

Plant cytoskeleton

Area of Science:

  • Plant cell biology
  • Cytoskeletal dynamics
  • Molecular plant science

Background:

  • The plant cytoskeleton, comprising actin microfilaments (AFs) and microtubules (MTs), is crucial for cell division, intracellular transport, and cell shape.
  • Direct interactions between AFs and MTs via specific proteins are known in other eukaryotes but less understood in plants.

Purpose of the Study:

  • To summarize recent advances in identifying and understanding proteins that interact with both actin microfilaments and microtubules in plants.
  • To explore the roles of these interacting proteins in fundamental cellular and developmental processes.

Main Methods:

  • Literature review of recent studies on plant cytoskeletal interactions.
  • Analysis of candidate proteins and protein complexes interacting with both AFs and MTs.

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Reconstituting and Characterizing Actin-Microtubule Composites with Tunable Motor-Driven Dynamics and Mechanics
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Reconstituting and Characterizing Actin-Microtubule Composites with Tunable Motor-Driven Dynamics and Mechanics

Published on: August 25, 2022

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Last Updated: Jun 19, 2026

Visualizing Actin and Microtubule Coupling Dynamics In Vitro by Total Internal Reflection Fluorescence (TIRF) Microscopy
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Using Microfluidics and Fluorescence Microscopy to Study the Assembly Dynamics of Single Actin Filaments and Bundles
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Using Microfluidics and Fluorescence Microscopy to Study the Assembly Dynamics of Single Actin Filaments and Bundles

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Reconstituting and Characterizing Actin-Microtubule Composites with Tunable Motor-Driven Dynamics and Mechanics
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  • Synthesis of functional evidence for these interactions in plants.

    • Main Results:

    • Identification of promising candidate proteins or complexes that potentially bridge AFs and MTs in plants.
    • Highlighting the current lack of extensive functional evidence for these plant-specific interactions.
    • Connecting these interactions to essential cellular and developmental functions.

    Conclusions:

    • While candidate proteins for direct AF-MT interactions exist in plants, further functional validation is required.
    • These interactions are likely critical for various cellular processes and plant development.
    • Continued research is needed to fully elucidate the mechanisms and significance of AF-MT cross-talk in plants.