JAMS attendees started off the night well lubricated thanks to the free beers courtesy of some happy financial planning in our favour. The evening started with Anna Simonin from the University of Sydney discussing Neurospora crassa, a filamentous fungus that forms extensive networks by fusion of the hyphae. Anna presented some amazing live imaging of the heady flow of cytoplasm between the fungal filaments. This clever architecture is thought to influence how nutrients are distributed around the colony. To explore how these streams of nutrient traffic may be contributing to Neurospora’s substrate utilisation, the movement of stable isotope labelled amino acids was tracked within a mutant unable to fuse filaments, a mutant that had lowered fusion ability and the wild type.

Event Date: 
Wednesday, March 28, 2012 - 18:00 - 18:15
University of Sydney

Genetically controlled network architecture in the filamentous fungus Neurospora crassa constrains amino acid translocation


Effective nutrient translocation in fungi is essential for nutrient cycling, mycorrhizal symbioses, virulence and substrate utilization. An interconnected mycelial network is proposed to influence resource translocation, but has not been empirically tested. By comparing amino acid translocation in Neurospora crassa colonies defective in network formation and translocation between wild type colonies of different developmental ages, we can gain insight into the influence of network formation on nutrient translocation.

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