《植物生理学报》 2013, 49(11): 1273-1277

梭梭属两种植物的根结构和成分

陈虞超, 李苗, 吴明朝, 宋玉霞*

宁夏农业生物技术重点实验室, 银川750002

通信作者：宋玉霞；E-mail: songyx666@163.com；Tel: 0951-6886755

摘　要：

利用半薄切片技术、ICP-OES和HPLC研究梭梭和白梭梭的根结构、根系中矿质元素与次生代谢产物含量, 结果表明, 梭梭和白梭梭根基本结构相同, 均由表皮、皮层及维管柱组成, 具异常维管组织, 皮层薄壁细胞在根中比例较大; 梭梭和白梭梭根系中Na和K元素含量较高; 根系次生代谢产物中蒽醌、生物碱类物质的含量较高。

关键词：梭梭; 白梭梭; 根结构; 矿质元素; 次生代谢产物

收稿：2013-08-09   修定：2013-09-16

资助：国家自然科学基金(31160066和30960023)、宁夏科技支撑计划项目和宁夏自然科学基金(NZ12262)。

Structure and Composition of Roots in Two Species of Haloxylon Bunge

CHEN Yu-Chao, LI Miao, WU Ming-Zhao, SONG Yu-Xia*

Key Laboratory of Agricultural Biotechnology of Ningxia, Yinchuan 750002, China

Corresponding author: SONG Yu-Xia; E-mail: songyx666@163.com; Tel: 0951-6886755

Abstract:

The structure, mineral elements and secondary metabolites in roots of Haloxylon ammodendron and H. persicum were studied with semi-thin section, inductively coupled plasma optical emission spectrometry (ICP-OES) and high performance liquid chromatography (HPLC). The results showed that H. ammodendron and H. persicum had the same root structures on the whole, including epidermis, cortex and vascular cylinder. The roots contained abnormal vascular tissue, a large percentage of parenchyma cells, and high contents of sodium (Na) and potassium (K). In addition, high levels of anthraquinone and aconitum alkaloids were observed in the secondary metabolites of roots.

Key words: Haloxylon ammodendron; Haloxylon persicum; root structure; mineral elements; secondary metabolites