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Fungal Genet Biol. 2003 Nov;40(2):138-45.

Conidial anastomosis tubes in Colletotrichum.

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Department of Biology, Universidade Federal de Lavras (UFLA), Lavras, 37-200 000 MG, Brazil.


We describe the occurrence of special kinds of hyphae that create anastomoses directly between conidia. They can be found both in the laboratory and on infected plants. They first appear within asexual fruiting bodies approximately 15 days after conidiation has begun leading to the appearance of chains of connected conidia. Coincident with this we demonstrate in Colletotrichum lindemuthianum nuclear dynamics, including fragmentation, with cytoplasmic flow and passage of nuclei and organelles between conidia through the anastomosis tubes. We propose that conidial anastomosis tubes play an important role in the life cycle of these fungi.

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