Su Yu-Ting, Xu Fei, Zhang Ping, Deng Peng-Tao, Lai Meng-Meng, Chen Zuo-Hong
School of life science and resources and environment, Yichun University, Yichun, Jiangxi 336000, China Hunan Normal University Changsha China.
College of Life Science, Hunan Normal University, Changsha, Hunan 410081, China Yichun University Yichun China.
MycoKeys. 2025 Jun 9;118:225-244. doi: 10.3897/mycokeys.118.141080. eCollection 2025.
Globally, many species of Amanitasect.Amanita (Amanitaceae, Agaricales) cause poisoning after consumption. and , two new species of A.sectionAmanita from China, are described here. Morphology and molecular phylogenetic analyses based on five genes (ITS, nrLSU, , , and ) revealed these two taxa as distinct species. 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. 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 and the absence of these toxins in .
在全球范围内，许多鹅膏属（伞菌目，鹅膏科）的物种在被食用后会导致中毒。本文描述了来自中国的鹅膏属的两个新物种，即 和 。基于五个基因（ITS、nrLSU、 、 和 ）的形态学和分子系统发育分析表明，这两个分类单元是不同的物种。 的特征是菌盖呈淡黄色至黄色，覆盖有疣状菌托残余物；基部有近球形的球茎，有短的边缘；担孢子近球形至宽椭圆形，无淀粉质。 的特征是菌盖呈褐色，覆盖有近圆锥形的菌托残余物；基部有卵形球茎，有奶油色边缘；担孢子近球形至宽椭圆形，无淀粉质。通过液相色谱串联质谱法（LC-MS/MS）对最臭名昭著的毒素进行筛查，结果显示 在 中存在鹅膏蕈氨酸（IBO）和蝇蕈醇（MUS），而在 中不存在这些毒素。
