Morphology, multilocus phylogeny, and toxin analysis reveal two new species of Amanita section Amanita (Amanitaceae) from China.

IF 2.8 2区 生物学 Q2 MYCOLOGY
Mycokeys Pub Date : 2025-06-09 eCollection Date: 2025-01-01 DOI:10.3897/mycokeys.118.141080
Yu-Ting Su, Fei Xu, Ping Zhang, Peng-Tao Deng, Meng-Meng Lai, Zuo-Hong Chen
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引用次数: 0

Abstract

Globally, many species of Amanitasect.Amanita (Amanitaceae, Agaricales) cause poisoning after consumption. Amanitaflavomelleiceps sp. nov. and Amanitaparvisychnopyramis sp. nov., two new species of A.sectionAmanita from China, are described here. Morphology and molecular phylogenetic analyses based on five genes (ITS, nrLSU, RPB2, TEF1-α, and TUB2) revealed these two taxa as distinct species. Amanitaflavomelleiceps sp. nov. is characterized by a yellowish-to-yellow pileus covered by verrucose volval remnants; a subglobose basal bulb with shortly limbate; subglobose to broadly ellipsoid, inamyloid basidiospores. Amanitaparvisychnopyramis sp. nov. is characterized by a brownish pileus covered by subconical volval remnants; an ovate basal bulb with a cream limbate; and subglobose-to-broadly ellipsoid, inamyloid basidiospores. Screening for the most notorious toxins by liquid chromatography tandem mass spectrometry (LC-MS/MS) revealed the presence of ibotenic acid (IBO) and muscimol (MUS) in A.parvisychnopyramis and the absence of these toxins in A.flavomelleiceps.

Morphology、多位点系统发育和毒素分析揭示了产自中国的金缕梅科金缕梅属二新种。
在全球范围内,有许多种类的蜘蛛目。毒伞(Amanitaceae, Agaricales)食用后会引起中毒。本文报道了中国a . sectionamanitaflavomelleiceps sp. 11和Amanitaparvisychnopyramis sp. nov.两个新种。基于ITS、nrLSU、RPB2、TEF1-α和TUB2基因的形态学和分子系统发育分析表明,这两个类群是不同的物种。Amanitaflavomelleiceps sp. 11 .的特征是由疣状绒毛残余覆盖的黄至黄色的菌毛;近球形基生球茎具短缘状;近球形到宽椭球,淀粉样担子孢子。Amanitaparvisychnopyramis sp. 11 .的特征是褐色的毛被近圆锥状的绒毛残余覆盖;卵形基生球茎具一奶油状边缘;和亚球形到宽椭球,淀粉样担子孢子。液相色谱-串联质谱法(LC-MS/MS)筛选结果显示,小锥蒿中含有伊博tenic acid (IBO)和muscimol (MUS),而黄茎蒿中不含这两种毒素。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Mycokeys
Mycokeys MYCOLOGY-
CiteScore
5.90
自引率
12.10%
发文量
66
审稿时长
6 weeks
期刊介绍: MycoKeys is a peer-reviewed, open-access, online and print, rapidly produced journal launched to support free exchange of ideas and information in systematics and biology of fungi (including lichens). All papers published in MycoKeys can be freely copied, downloaded, printed and distributed at no charge for the reader. Authors are thus encouraged to post the pdf files of published papers on their homepages or elsewhere to expedite distribution. There are no restrictions nor charge for color.
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