A1 Refereed original research article in a scientific journal
Pseudosperma arenarium (Inocybaceae), a new poisonous species from Eurasia, based on morphological, ecological, molecular and biochemical evidence
Authors: Yan Ya-Ya, Zhang Yi-Zhe, Vauras Jukka, Zhao Li-Na, Fan Yu-Guang, Li Hai-Jiao, Xu Fei
Publisher: PENSOFT PUBLISHERS
Publication year: 2022
Journal: Mycokeys
Journal name in source: MYCOKEYS
Journal acronym: MYCOKEYS
Volume: 92
First page : 79
Last page: 93
Number of pages: 15
ISSN: 1314-4057
eISSN: 1314-4049
DOI: https://doi.org/10.3897/mycokeys.92.86277
Publication's open availability at the time of reporting: Open Access
Publication channel's open availability : Open Access publication channel
Web address : https://mycokeys.pensoft.net/article/86277/
Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/176808727
Self-archived copy's licence: CC BY
Self-archived copy's version: Publisher`s PDF
In this study, Pseudosperma arenarium is proposed as a new species, based on morphological, ecological, molecular and biochemical evidence. The new species grows on sandy ground under Populus and Pinus sylvestris in north-western China and northern Europe, respectively. It is characterised by the combination of the robust habit, nearly glabrous pileus, large cylindrical basidiospores, thin-walled cheilocystidia and eco-logical associations with Populus alba x P. berolinensis and Pinus sylvestris and unique phylogenetic place-ment. Additionally, a comprehensive toxin determination of the new species using ultra-high performance liquid chromatography-tandem mass spectrometry was conducted. Results showed that it was a mus-carine-positive species. The content were approximately five times higher in the pilei [4012.2 +/- 803.1- 4302.3 +/- 863.2 mg/kg (k = 2, p = 95%)] than in the stipes [850.4 +/- 171.1-929.1 +/- 184.2 mg/kg (k = 2, p = 95%)], demonstrating the severity of mushroom poisoning when patients consumed different parts of the poisonous mushroom. Amatoxins, phallotoxins, ibotenic acid, muscimol, psilocybin and psilocin were not detected.
Keywords:
muscarinemass spectrometry, mushroom toxin, new taxon, poisonous mushroom, ultra-high performance liquid chromatography-tandem
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