abnormal bipolar mitotic spindle bipolar mitotic spindle with decreased, irregular thickness bipolar mitotic spindle with decreased, irregular thickness during mitotic cell cycle 2018-01-26T11:59:01Z thin, discontinuous bipolar mitotic spindle FYPO:0006346 A physical cellular phenotype observed in the vegetative growth phase of the life cycle in which the mitotic spindle has two poles and can elongate during anaphase, but has decreased and non-uniform thickness along its length. bipolar mitotic spindle with decreased, irregular thickness during vegetative growth midori In images of thin spindles, polar microtubules may appear not to reach continuously from pole to pole. decreased, irregular bipolar mitotic spindle thickness