Promotion of Cress Root Elongation in White Light by 3,5-Diiodo-4-hydroxybenzoic Acid

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...

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Bibliographic Details
Published in:Planta 1975-01, Vol.126 (3), p.269-272
Main Authors: Larqué-Saavedra, A., Wilkins, Henry, Wain, R. L.
Format: Article
Language:English
Subjects:
Aeration
Growth substances
Parabens
Plant growth
Plant roots
Plants
Rafts
Root cap
Root growth
Seedlings
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Summary: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 ethylene or the ethylene precursor methionine to the solution caused marked inhibition of root elongation and this effect was relieved by DIHB.
ISSN:0032-0935
1432-2048
DOI:10.1007/BF00388968