.../centrioles for the spindle microtubules. When replicating tachyzoites were treated with 0.5 μM oryzalin or 1.0 mM colchicine they retained the capacity to form a spindle and undergo nuclear division. Although these parasites could complete budding,they lost the bulk of their subpellicular microtubules...

.... The upA12 mutation caused twofold resistance to amiprophos-methyl and oryzalin, and twofold hypersensitivity to the microtubule-stabilizing drug taxol, suggesting that the mutation enhanced microtubule stability. The resistance mutation was semi-dominant and mapped to the same interval on linkage group III...

...Geoffrey O. Wasteneys; Richard E. Williamson ABSTRACT Giant internodal cells of Nitella tasmanica have cortical microtubules beneath the plasma membrane and endoplasmic microtubules associated with sub-cortical actin bundles and nuclei. We depolymerized the microtubules with oryzalin and followed...