Identification of pinitol as a main sugar constituent and changes in its content during flower bud development in carnation (Dianthus caryophyllus L.)
Identification of pinitol as a main sugar constituent and changes in its content during flower bud development in carnation (Dianthus caryophyllus L.)
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DOI：
10.1016/s0176-1617(98)80248-4
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发表时间：
1998-05-01
影响因子：
4.3
通讯作者：
Ito, A
中科院分区：
文献类型：
--
作者：
Ichimura, K;Kohata, K;Ito, A
从香石竹（DianthuscaryophyllusL.）乙醇提取物中检测到一种除葡萄糖、果糖、蔗糖和肌醇外的未知糖类化合物。叶并使用高效液相色谱法分离。分离得到的化合物经核磁共振氢谱和碳谱鉴定为D-（+）-手性肌醇单甲醚（松醇）。4个品种叶片中的糖含量最高，茎、花瓣和花的其余部分也含有大量的松醇。在花瓣中，松醇含量保持不变，在花芽发育过程中的鲜重基础上，但器官松醇含量显着增加。松醇含量在花的其他部分也很高。这些研究结果表明，松醇，一个主要的糖成分，有助于芽的生长和随后的花瓣开放在康乃馨与其他代谢糖，如葡萄糖和蔗糖。
An unknown sugar-like compound other than glucose, fructose, sucrose and mya-inositol was detected in the ethanol extract of carnation (Dianthus caryophyllus L.) leaves and isolated using high performance liquid chromatography. The isolated compound was identified as D-(+)-chiro-inositol monomethylether (pinitol) by H-1-NMR and C-13-NMR spectra. Pinitol was the most abundant sugar in the leaf and also was present in st em, petal and the remaining part of flower in large amounts in 4 cultivars tested. In petals, the pinitol content remained constant during flower bud development on a fresh weight basis, but the organ pinitol content increased markedly. The pinitol content was also high in the other parts of the flower. These findings suggest that pinitol, a major sugar constituent, contributes to the bud growth and subsequent petal opening in the carnation together with other metabolic sugars, such as glucose and sucrose.