野生防风的根及其根际土壤中的矿物质元素。

Mineral elements in root of wild Saposhnikovia divaricata and its rhizosphere soil.

机构信息

College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, China.

出版信息

Biol Trace Elem Res. 2013 Jun;153(1-3):363-70. doi: 10.1007/s12011-013-9684-x. Epub 2013 May 21.

DOI:10.1007/s12011-013-9684-x

Abstract

Mineral elements are important components of medicinal herbs, and their concentrations are affected by many factors. In this study, Ca, Mg, Na, K, Fe, Mn, Cu, and Zn concentrations in wild Saposhnikovia divaricata and its rhizosphere soil collected from seven locations at two different times in China were measured, and influences of rhizosphere soil on those minerals in plant were evaluated. The results showed that mean concentrations of eight minerals in plant samples decreased in the order: Ca > Mg > Na > K > Fe > Zn > Mn > Cu, and those in the soil samples followed the following order: Na > Fe > Ca > K > Mg > Mn > Zn > Cu. Mean concentrations of Ca, Na, Mg, and K in plants were higher than those in soils, while higher mean concentrations of the other four minerals were found in soils. It was found that there was a positive correlation of Mg, Na, and Cu concentrations in the plant with those in the soil respectively, but a negative correlation of Mn concentration in plant with that in the soil. Except Ca, K, and Mn, the other five minerals in plant were all directly affected by one or more chemical compositions of soil. The results also indicate that pH value and concentrations of total nitrogen, Mg, Mn, and Cu in soil had significant correlations with multimineral elements in plant. In a word, mineral elements uptake of S. divaricata can be changed by adjusting the soil fertility levels to meet the need of appropriate quality control of S. divaricata.

摘要

矿物质元素是中药材的重要组成部分，其浓度受多种因素的影响。本研究测定了中国 7 个不同地点、2 个不同时期采集的野生防风及其根际土壤中 Ca、Mg、Na、K、Fe、Mn、Cu 和 Zn 的浓度，并评价了根际土壤对植物中这些矿物质的影响。结果表明，植物样品中 8 种矿物质的平均浓度顺序为：Ca＞Mg＞Na＞K＞Fe＞Zn＞Mn＞Cu，土壤样品中的顺序为：Na＞Fe＞Ca＞K＞Mg＞Mn＞Zn＞Cu。植物中 Ca、Na、Mg 和 K 的平均浓度高于土壤，而其他 4 种矿物质的平均浓度则较高。研究发现，植物中 Mg、Na 和 Cu 的浓度与土壤中的浓度呈正相关，而 Mn 的浓度与土壤中的浓度呈负相关。除 Ca、K 和 Mn 外，植物中的其他 5 种矿物质均直接受到土壤中一种或多种化学成分的影响。研究结果还表明，土壤的 pH 值以及总氮、Mg、Mn 和 Cu 的浓度与植物中的多种矿物质元素有显著相关性。总之，通过调节土壤肥力水平来改变防风对矿物质元素的吸收，可以满足防风适当质量控制的需要。