Effect of galactoglucomannan-derived oligosaccharides on elongation growth of pea and spruce stem segments stimulated by auxin
✍ Scribed by O. Auxtová; D. Lišková; D. Kákoniová; M. Kubačková; Š. Karácsonyi; L. Bilisics
- Publisher
- Springer-Verlag
- Year
- 1995
- Tongue
- English
- Weight
- 438 KB
- Volume
- 196
- Category
- Article
- ISSN
- 0032-0935
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✦ Synopsis
Galactoglucomannan-derived oligosaccharides (GGMOs) (degree of polymerization 4-8) isolated from the wood of poplar (Populus monilifera Ait.) were shown to be inhibitors of the 2,4-dichlorophenoxyacetic acid-stimulated elongation growth of pea (Pisum sativum L. cv. Tyrkys) and spruce [Picea abies (L.) Karst] stem segments. A dependence on the concentration of GGMOs (between 10-5-10-1OM) as well as plant species was ascertained. Pea stem segments were much more sensitive (10-1OM) than spruce (10-8M). The GGMOs did not exhibit toxicity even at high concentrations and during long-term bioassays. The timing of the action of GGMOs and auxin in the growth process was also studied.