Research Progress on the Efficacy and Chemical Components of Medicinal Taxillus chinensis(DC.)Danser

Taxillus chinensis(DC.)Danser is a traditional Chinese medicine,which has the effects of nourishing the liver and kidney and strengthening the bones and muscles.Its properties and efficacy were recorded in many ancient Chinese herbal medicine books and modern books.In addition,other parasitic plants of the Loranthaceae family also have the effects of promoting blood circulation,checking diarrhea,and resisting tumor to treat various diseases.This paper reviewed recent scholars’research on the efficacy and chemical composition of medicinal Loranthaceae plants,and expounded the similarities and differences between T.chinensis and other medicinal Loranthaceae plants.

基于简单重复序列间标记分析寄主影响的广寄生遗传多样性

以寄生于不同寄主的广寄生[Taxillus chinensis(DC.)Danser]作为研究对象,运用简单重复序列间(Inter-simple sequence repeat,ISSR)分子标记技术对其进行遗传多样性分析。采用植物基因组DNA提取试剂盒对15个寄主的广寄生进行DNA提取,随后使用5个ISSR引物进行PCR扩增。对扩增出来的条带进行人工计数,借助POPGENE 3.2软件和NTSYS 2.10软件对15个寄主广寄生的遗传多样性进行分析。结果表明,共扩增出65条条带,均为多态性条带,多态性占比为100%。遗传相似系数在0.353 8~0.784 6,聚类图将15个样品分为6个类群,研究表明,15个寄主广寄生样品的遗传多样性存在差异,群体间具有遗传差异性。

广宁红花油茶寄生危害调查分析

通过调查东莞樟木头林场广宁红花油茶林广寄生[Taxillus chinensis(DC)Danser],结果表明,广宁红花油茶(Camellia semiserrata)树上广寄生寄生株率为76.5%,单株广宁红花油茶广寄生平均生物量为12.89 kg,最少为0.12 kg,最多有39.1 kg。广寄生平均基径13.59 mm,平均枝高为96.78 cm。广宁红花油茶地径、树高、冠幅生长性状间相关显著;广寄生生物量除与油茶树高生长相关不显著外,与广宁红花油茶地径、冠幅、寄生枝基径、高呈极显著正相关。