Mycobiology

  • 제48권3호
  • /
  • Pages.204-209
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  • 2020
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  • 1229-8093(pISSN)
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  • 2092-9323(eISSN)
한국균학회 (The Korean Society of Mycology)
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Determination of Amatoxins in Lepiota brunneoincarnata and Lepiota venenata by High-Performance Liquid Chromatography Coupled with Mass Spectrometry

  • Long, Pan (College of Life Science, Hunan Normal University) ;
  • Fan, Fengxia (College of Life Science, Hunan Normal University) ;
  • Xu, Bin (State Key Laboratory of Toxicology and Medical Countermeasures, and Laboratory of Toxicant Analysis, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences) ;
  • He, Zhengmi (College of Life Science, Hunan Normal University) ;
  • Su, Yuting (College of Life Science, Hunan Normal University) ;
  • Zhang, Ping (College of Life Science, Hunan Normal University) ;
  • Xie, Jianwei (State Key Laboratory of Toxicology and Medical Countermeasures, and Laboratory of Toxicant Analysis, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences) ;
  • Chen, Zuohong (College of Life Science, Hunan Normal University)
  • 투고 : 2019.11.26
  • 심사 : 2020.05.03
  • 발행 : 2020.06.30
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초록

Three hepatic failure poisoning incidents caused by Lepiota brunneoincarnata and Lepiota venenata mushrooms have been occurred in China in 2017, L. venenata has been described as a new species. However, the cyclopeptide toxins of these lethal mushrooms remain poorly understood. In this study, the composition and content of amatoxins in L. brunneoincarnata and L. venenata are analyzed and compared, the analysis of composition and content of amatoxins in L. venenata are reported for the first time. The results showed that β-amanitin (β-AMA), α-amanitin (α-AMA), amanin, and amaninamide were identified in L. brunneoincarnata, and α-AMA, amanin II (an analog of amanin), and an unknown compound were identified in L. venenata. The differences between L. brunneoincarnata and L. venenata in the identified compounds provide chemical evidence for L. venenata as a new species. Quantitative analysis shows that α-AMA concentrations in L. brunneoincarnata and L. venenata were 0.72-1.97 mg/g dry weight, β-AMA concentrations in L. brunneoincarnata were 0.57-0.94 mg/g dry weight, and β-AMA was absent in L. venenata.

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참고문헌

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피인용 문헌

  1. Occurrence and chemotaxonomical analysis of amatoxins in Lepiota spp. (Agaricales) vol.195, 2020, https://doi.org/10.1016/j.phytochem.2021.113069