Abstract
The interactions between cells of lower fungi may occur through plasmodesmata-like structures, which have been visualized electron microscopically in fungal septa. Developing zygospores of the zygomycetous speciesRhizopus sexualis andGilbertella persicaria contain transcellular strands in septa which separate young gametangia from the suspensors. These simple, unbranched strands occur at intervals in the gametangial wall, and resemble plasmodesmata (Hawker et al.1966). The structures were found to be connected with the endoplasmic reticulum. Plasmodesmata-like structures have also been demonstrated in septa of hyphae of the ascomycetous yeastsGeotrichum candidum (Kirk and Sinclair1966) and inEndomycopsis fibuliger (Takada et al.1965). Septa ofGalactomyces geotrichum exhibit unbranched plasmodesmata-like structures, extending through the cell wall. The width of these channels is40-60 nm, with a desmotubule of10 nm diameter (Marchant1976) which connects endoplasmic reticulum on either side of the septum. Plasmodesmata-like structures occur in few fungi, while in the majority of fungi with septate hyphae the protoplasm of neighbouring cells is connected through the septal pore channel.
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© 1999 Springer-Verlag Berlin Heidelberg
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Müller, W.H., Humbel, B.M., Van Aelst, A.C., Van der Krift, T.P., Boekhout, T. (1999). The Perforate Septal Pore Cap of Basidiomycetes. In: van Bel, A.J.E., Van Kesteren, W.J.P. (eds) Plasmodesmata. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-60035-7_8
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DOI: https://doi.org/10.1007/978-3-642-60035-7_8
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