inviable after spore germination with elongated germ tube 2011-04-27T11:47:04Z FYPO:0000314 A phenotype in which a spore germinates to produce an elongated germ tube, and does not go on to give rise to a viable cell population. midori inviable germinated spore with elongated germ tube lethal after spore germination with elongated germ tube inviable following spore germination with elongated germ tube inviable after spore germination, elongated cell inviable elongated vegetative cell inviable after spore germination with abnormal germ tube morphology