inviable after spore germination, before germ tube formation inviable after spore germination, before germ tube formation, during copper ion starvation A phenotype in which a spore germinates but dies before forming a germ tube or dividing, when spore germination takes place under conditions of copper ion starvation. Such spores exit dormancy and undergo isotropic swelling but the spore wall does not rupture and no germ tube emerges. lethal after spore germination, before germ tube formation, during copper ion starvation midori inviable germinated spore, without germ tube formation, during copper ion starvation inviable following spore germination, before germ tube formation, during copper ion starvation FYPO:0006212 inviable after spore germination, before germ tube formation, during copper starvation 2017-09-12T13:50:59Z Spores with this phenotype can be identified by loss of spore refractility that can be observed by light microscopy or by a decrease in optical absorbance of the spore suspension. inviable after spore germination, before germ tube formation, during cellular response to copper ion starvation