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Plants (Basel). 2020 Oct 22;9(11). doi: 10.3390/plants9111410.

An Integrated Approach for Efficient and Accurate Medicinal Cuscutae Semen Identification.

Plants (Basel, Switzerland)

Inkyu Park, Sungyu Yang, Goya Choi, Byeong Cheol Moon, Jun-Ho Song

Affiliations

  1. Herbal Medicine Resources Research Center, Korea Institute of Oriental Medicine, Naju 58245, Korea.

PMID: 33105814 PMCID: PMC7690581 DOI: 10.3390/plants9111410

Abstract

To guarantee the safety and efficacy of herbal medicines, accurate identification and quality evaluation are crucial. The ripe dried seeds of Cuscuta australis R.Br. and C. chinensis Lam. are known as Cuscutae Semen (CS) and are widely consumed in Northeast Asia; however, the seeds of other species can be misidentified as CS owing to morphological similarities, leading to misuse. In this report, we propose a multilateral strategy combining microscopic techniques with statistical analysis and DNA barcoding using a genus-specific primer to facilitate the identification and authentication of CS. Morphology-based identification using microscopy revealed that the useful diagnostic characteristics included general shape, embryo exudation, hairiness, and testa ornamentation, which were used to develop an effective identification key. In addition, we conducted DNA barcoding-based identification to ensure accurate authentication. A novel DNA barcode primer was produced from the chloroplast

Keywords: Cuscuta chinensis; Cuscutae Semen; barcode primer; endosperm; light microscope; morphological identification key; rbcL gene; scanning electron microscope; seed morphology

Conflict of interest statement

The authors declare that there are no conflicts of interest.

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