Related Experiment Video
Updated: May 17, 2026

High-resolution Imaging and Analysis of Individual Astral Microtubule Dynamics in Budding Yeast
Published on: April 20, 2017
Microtubule-based transport in filamentous fungi
Martin J Egan1, Mark A McClintock, Samara L Reck-Peterson
1Department of Cell Biology, Harvard Medical School, Boston, MA 02115, United States.
Abstract:
Defects in microtubule-based transport are implicated in many neuropathologies. The filamentous fungi Aspergillus nidulans and Ustilago maydis are valuable models for studying transport owing to their yeast-like genetic and biochemical tractability and metazoan-like dependence on microtubule-based transport for cellular trafficking. In these organisms the role of microtubules in nuclear positioning is well studied, but recent work has expanded the range of cargos to include endosomes, messenger RNA, secretory vesicles, peroxisomes, and nuclear pore complexes, reflecting the diversity of metazoan systems. Furthermore, similarities in transport mechanisms exist between filamentous fungi and metazoan neurons, demonstrating the suitability of A. nidulans and U. maydis for studying the molecular basis of transport-related neuropathologies such as lissencephaly, motor neuron disease, and Perry syndrome.
Insights
Filamentous fungi like Aspergillus nidulans and Ustilago maydis are excellent models for studying cellular transport. Their similarities to metazoan neurons make them suitable for investigating neuropathologies linked to transport defects.
Area of Science:
- Cell Biology
- Neuroscience
- Mycology
Background:
- Microtubule-based transport is crucial for cellular function and implicated in neuropathologies.
- Filamentous fungi offer genetic tractability and conserved transport mechanisms relevant to metazoan systems.
Purpose of the Study:
- To highlight the utility of Aspergillus nidulans and Ustilago maydis as model organisms for studying microtubule-based transport.
- To explore the relevance of fungal transport systems to human neuropathologies.
Main Methods:
- Comparative analysis of microtubule-based transport mechanisms in filamentous fungi and metazoan neurons.
- Leveraging the genetic and biochemical tractability of Aspergillus nidulans and Ustilago maydis.
Main Results:
- Microtubule-based transport in fungi involves diverse cargos including endosomes, mRNA, and vesicles, mirroring metazoan systems.
- Similarities in transport mechanisms between fungi and metazoan neurons are evident.
Conclusions:
- Aspergillus nidulans and Ustilago maydis are suitable models for investigating the molecular basis of transport-related neuropathologies.
- These fungal models can advance our understanding of diseases such as lissencephaly and motor neuron disease.
Related Concept Videos
Microtubules
Microtubules
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...
Microtubule Associated Motor Proteins
The Movement of Organelles and Vesicles
Microtubule Formation
Microtubules in Cell Motility

