Abstract
Rooting responses and ethylene production by hypocotyl cuttings from etiolated mung-bean seedlings treated with the auxins α-naphthaleneacetic acid, γ-(indole-3)-n-butyric acid (IBA) and 2,4,5-trichloro-phenoxypropionic acid were determined. There was no relationship between the abilities of the auxins to induce root formation and their capacities for inducing ethylene production. Studies with mixtures of 3-indoleacetic acid, a poor stimulator of rooting but an effective inducer of ethylene production, and IBA, an effective rooting stimulator but a poor inducer of ethylene production, exposure of cuttings to ethylene or (2-chloroethyl) phosphonic acid (Ethephon), hypobaric storage (150 mb) of treated cuttings, and exposure of auxin-treated cuttings to 7% CO2 also indicated that ethylene is not directly involved in initiation of adventitious roots in this plant material.
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Abbreviations
- IAA:
-
indole-3-acetic acid
- IBA:
-
γ-(indole-3)-n-butyric acid
- NAA:
-
α-naphthaleneacetic acid
- 2,4,5-TP:
-
2,4,5-trichlorophenoxypropionic acid
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Batten, D.J., Mullins, M.G. Ethylene and adventitious root formation in hypocotyl segments of etiolated mung-bean (Vigna radiata (L.) Wilczek) seedlings. Planta 138, 193–197 (1978). https://doi.org/10.1007/BF00386810
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DOI: https://doi.org/10.1007/BF00386810