Summary
In epidermal cells of azuki bean (Vigna angularis) epicotyl segments, that were sequentially treated with an auxin-free solution and an auxin solution, cortical microtubules changed their orientation from longitudinal to transverse. Auxin caused the reorientation of microtubules from longitudinal to transverse in segments that were kept under anaerobic conditions and, therefore, showed no elongation, indicating that auxin can regulate the orientation of microtubules by a mechanism that does not involve auxin-induced change in the rate of cell elongation.
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Abbreviations
- DMSO:
-
dimethylsulfoxide
- GA3 :
-
gibberellic acid
- IAA:
-
indoleacetic acid
- MT:
-
microtubule
- PBS:
-
phosphate-buffered saline
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Takesue, K., Shibaoka, H. Auxin-induced longitudinal-to-transverse reorientation of cortical microtubules in nonelongating epidermal cells of azuki bean epicotyls. Protoplasma 206, 27–30 (1999). https://doi.org/10.1007/BF01279250
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DOI: https://doi.org/10.1007/BF01279250