Abstract
Using gas chromatography-mass spectrometry (GC/MS) techniques of analyses, it has been found that endogenous abscisic acid (ABA) becomes asymmetrically distributed in the elongation zone of horizontal Zea mays (cv. LG 11) roots which are showing a positive gravitropic response. There is a relative increase in the ABA content of the lower half and a concomitant decrease for the upper half in such roots. Asymmetric distribution of ABA is also detected in the elongation zone of half-decapped roots.
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Abbreviations
- IAA:
-
indoleacetic acid
- ABA:
-
abscisic acid
- GC/MS:
-
gas chromatography-mass spectrometry
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Pilet, P.E., Rivier, L. Abscisic acid distribution in horizontal maize root segments. Planta 153, 453–458 (1981). https://doi.org/10.1007/BF00394985
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DOI: https://doi.org/10.1007/BF00394985