Fungus propagules in plastids: the mycosome hypothesis
Keywords:Aureobasidium pullulans, fungi, plastids, Mycosomes, someangia
AbstractA stress-induced “mycosome”phase of Aureobasidium pullulans consisting of minute reproductive propagules that may revert directly to walled yeast cells is described. Mycosomes detected by light- and electronmicroscopy reproduce within senescent plant plastids, and display three developmental pathways: wall-less cells (protoplasts), yeast cells, or membrane-bounded spherules that harbor plastids. Widespread in plant and algal cells, mycosomes are produced by both ascomycete and basidiomycete fungi.
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