The effect of low concentrations of 3,5-diiodo-4-hydroxybenzoic acid (DIHB) in promoting the elongation of light-exposed cress (Lepidium sativum L.) roots has been further examined. Aeration of the DIHB solution in which the roots were grown largely removed the growth promotion. The addition of ethy
Control of Zea root elongation by light and the action of 3,5-diiodo-4-hydroxybenzoic acid
✍ Scribed by WILKINS, H.; LARQUÉ-SAAVEDRA, A.; WAIN, R. L.
- Book ID
- 109689885
- Publisher
- Nature Publishing Group
- Year
- 1974
- Tongue
- English
- Weight
- 239 KB
- Volume
- 248
- Category
- Article
- ISSN
- 0028-0836
- DOI
- 10.1038/248449a0
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In previous research here, 3,5-diiodo-4hydroxybenzoic acid (DIHB) was shown to promote the elongation of roots of cress (Lepidium sativum) seedlings growing in light, and to inhibit the auxininduced production of ethylene in this tissue. Although DIHB is a cofactor for the oxidation of indole-3-acet
The apical 2 cm of seedling roots of oilseed rape (Brassica napus L ., cv. 'Primor') produced more ethylene than adjacent, older tissue . Treatment with < 5 X 10' mol m -' 3,5-diiodo-4-hydroxybenzoic acid (DIHB), a presumed inhibitor of ethylene action, failed to stimulate root extension . Larger c