Planta Med 2008; 74(4): 470-473
DOI: 10.1055/s-2008-1034360
Biochemistry and Molecular Biology
Original Paper
© Georg Thieme Verlag KG Stuttgart · New York

Molecular Authentication of Dendrobium loddigesii Rolfe by Amplification Refractory Mutation System (ARMS)

Liang Qian1 , Ge Ding1 , Qi Zhou1 , Zhenyu Feng1 , Xiaoyu Ding1 , Sun Gu1 , Ying Wang1 , Xuexia Li1 , Bihai Chu1
  • 1Jiangsu Key Laboratory for Biodiversity & Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, P. R. China.
Further Information

Publication History

Received: July 2, 2007 Revised: January 3, 2008

Accepted: February 18, 2008

Publication Date:
26 March 2008 (online)

Abstract

As a widely used medicinal plant, Dendrobium loddigesii Rolfe is always a possible target for fraudulent labeling. The identification of D. loddigesii is generally difficult from its morphological and chemical appearance only. In order to develop a convenient and efficient identification method for D. loddigesii, six pairs of diagnostic ARMS primers were designed based on nrDNA ITS sequences of D. loddigesii and eleven adulterants. The results showed that one diagnostic primer pair (FJB-04-forward, FJB-04-reverse) could be used to authenticate D. loddigesii by generating a fragment of 353 bp at annealing temperatures from 48 °C to 62 °C while the other diagnostic primer pair (FJB-03-forward, FJB-03-reverse) took on the same effect at annealing temperatures from 49 °C to 55 °C. This points out the potential of ARMS analysis for authentication of D. loddigesii.

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Professor Xiaoyu Ding

Jiangsu Key Laboratory for Biodiversity & Biotechnology

College of Life Sciences

Nanjing Normal University

Nanjing 2006

People’s Republic of China

Email: dingxynj@263.net

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