Stimulation of root formation in difficult-to-root woody cuttings by dithiothreitol

Shoot microcuttings of Malus domestica cv. Jork 9, Malus domestica cv. Cepiland, Mandevilla (Dipladenia) sanderi, and Daphne odora cv. variegata were induced to root by the addition of 0.1-1 mM dithiothreitol following an auxin (indole-3-acetic acid) treatment to initiate root formation. The most di...

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Bibliographic Details
Published in:International journal of plant sciences 1997-03, Vol.158 (2), p.132-135
Main Authors: Auderset, G, Moncousin, C, O'Rourke, J, Morre, D.J
Format: Article
Language:English
Subjects:
AIA
APOCYNACEAE
Auxins
Botany
BOUTURE
Callus
CUTTINGS
DAPHNE
DAPHNE ODORA
Development
ENRACINEMENT
ENRAIZAMIENTO
ESQUEJES
Hormones
IAA
MALUS PUMILA
mandevilla sanderi
Minerals
MULTIPLICATION VEGETATIVE
Plant cuttings
Plant growth
Plant roots
Plants
PROPAGACION VEGETATIVA
Reagents
ROOTING
SHOOT CUTTINGS
STEMS
TALLO
THIOL
THIOLS
TIGE
TIOLES
VEGETATIVE PROPAGATION
Woody plants
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Summary:Shoot microcuttings of Malus domestica cv. Jork 9, Malus domestica cv. Cepiland, Mandevilla (Dipladenia) sanderi, and Daphne odora cv. variegata were induced to root by the addition of 0.1-1 mM dithiothreitol following an auxin (indole-3-acetic acid) treatment to initiate root formation. The most difficult to root, Malus domestica cv. Cepiland, required higher dithiothreitol concentrations to achieve optimum rooting than did the less difficult to root, Malus domestica cv. Jork 9, Mandevilla sanderi, or Daphne odora variegata. The roots induced by the combination of dithiothreitol and auxin treatment were approximately twofold longer and more robust than those induced with auxin treatment alone. The combination treatment of auxin and dithiothreitol has the potential to be of practical importance in root initiation in difficult-to-root cuttings of both woody and herbaceous horticultural varieties.
ISSN:1058-5893
1537-5315
DOI:10.1086/297422