Occurrence of a Novel Galactopinitol and its Changes with Other Non-Reducing Sugars during Development of Leucaena leucocephala Seeds :
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- Chien,Ching-Te
- Tree Seed Laboratory, Division of Silviculture, Taiwan Forestry Research Institute
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- Lin,Tsan-Piao
- Tree Seed Laboratory, Division of Silviculture, Taiwan Forestry Research Institute
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- Juo,Chiun-Gung
- Department of Chemistry, National Taiwan University
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- Her,Guor-Rong
- Department of Chemistry, National Taiwan University
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抄録
A new cyclitol which is abundant in the late develop-mental stages of leucaena (Leucaena leucocephala (Lam.) de Wit) seeds was identified by HPLC, NMR, and GCMS as O-a-D-galactopyranosyl-(1 → 1)-3-O-methyl-D-chiroinositol, a new galactopinitol. This galactopinitol was initially detected midway through seed development and increased to 10.2 mg (g DW)^<-1>, but decreased in mature seeds to its about a half. Stachyose content increased greatly and remained the most abundant of the soluble sugars in mature seeds (25.6 mg (g DW)^<-1>). Artificial drying at 73% relative humidity of 70 DPA immature seeds induced the accumulation of raffinose, stachyose, galactopinitol and galactinol, but the total amounts of these sugars were only about half of those found in mature seeds. Seed germination decreased following an initial increase after 8 d ar-tificial drying to a moisture content of 24%, and this dehydration damage probably is because of underdevelopment of seed tissue. Galactopinitol changes in a similar fashion to the oligosaccharides during the late developmental stage and dehydration experiment, implying that galactopinitol may play a role in desiccation tolerance of leucaena seeds.
収録刊行物
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- Plant and cell physiology
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Plant and cell physiology 37 (4), 539-544,
Japanese Society of Plant Physiologists
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詳細情報 詳細情報について
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- CRID
- 1541698620267532032
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- NII論文ID
- 110003720852
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- NII書誌ID
- AA0077511X
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- 本文言語コード
- en
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- データソース種別
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- NDL-Digital
- CiNii Articles