Summary
Colchicine and cremart (O-ethyl O-(3-methyl-6-nitrophenyl) N-sec-butylphosphorothioamidate) disrupt microtubules in leaf sheath cells of onion plants (Allium cepa L. cv. Senshu-Chuko) and cause cell swelling to make the basal parts of the plants bulbous. Gibberellin A3(GA3) protects microtubules from disruption by colchicine and cremart and suppresses the swelling caused by them. GA3 also protects microtubules from disruption by low temperature.
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Mita, T., Shibaoka, H. Gibberellin stabilizes microtubules in onion leaf sheath cells. Protoplasma 119, 100–109 (1984). https://doi.org/10.1007/BF01287822
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DOI: https://doi.org/10.1007/BF01287822