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Microscopic Identification and the Content of Selenium in Gentiana rhodantha (PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年02期
Page:
156-158
Research Field:
Publishing date:

Info

Title:
Microscopic Identification and the Content of Selenium in Gentiana rhodantha
Author(s):
ZHOU Xue-linYU ZhenSUN Ai-qunLIN Chang-song
Department of Life Sciences,Liupanshui Normal University,Liupanshui,Guizhou 553004
Keywords:
Gentiana rhodanthamorphological identificationparaffin sliceselenium-enriched
PACS:
Q 949. 776. 4
DOI:
-
Abstract:
Taking Gentiana rhodantha as material,the morphological characteristics and microstructure were described by using freehand section method and paraffin slice method;selenium content was determined by hydride generation atomic fluorescence spectrometry.The results showed that the root had a wider cortex,suborbicular xylem and unpith stele;the stem had a thicker cortex,siphonostele,continuous ring phloem and cambium,larger pith;the leaf epidermis cells were oval,palisade tissue cells were 1~2 lines,collateral bundle,upper epidermis cells of leaf were irregular and lower epidermis were angle branch.Meanwhile,the results also revealed that the average selenium content of leaf was 771. 246 μg/kg,and the flowers and stems took second place,and the average selenium content of root was 195. 383 μg/kg.Therefore,the selenium content of root reached selenium-enriched food standards,and the rest parts reached high selenium-enriched food standards.Gentiana rhodantha could be used as selenium-enriched in Chinese herbal medicine.

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Last Update: 2014-08-10