Two penzigioid Xylaria species described from China based on morphological and molecular characters
Two penzigioid Xylaria species described from China based on morphological and molecular characters
复制标题
基于形态和分子特征的中国两种 Penzigiooid Xylaria 物种描述
DOI：
10.11646/phytotaxa.436.1.3
复制
发表时间：
2020-03-16
期刊：
影响因子：
1.1
通讯作者：
Li, Yu
中科院分区：
文献类型：
--
作者：
Ma, Hai-Xia;Qu, Zhi;Li, Yu
本文描述了采自吉林省的一种新的核菌-。形态学和rDNA ITS和β-微管蛋白序列的系统发育分析支持这一新种的建立。在宏观上，新种的特征是具穿透寄主树皮的盘状分泌子座。显微镜下，具暗褐色至黑色椭圆形不等侧子囊孢子和大的瓮状顶端环，在梅尔策氏试剂中变蓝。讨论了新种与相关真菌的区别。另一种Penzigioid Xylaria，X. sibirica为首次在中国报道。
A new pyrenomycetous fungus, Xylaria acericola, collected in Jilin Province, northeastern China, is described and illustrated on the basis of two collections. Both morphology and phylogenetic analysis of rDNA ITS and beta-tubulin sequences support the establishment of this new species. Macroscopically, the new species is characterized by penzigioid stromata erumpent through bark of host plant. Microscopically, it has dark-brown to black, ellipsoid-inequilateral ascospores and large, urn-shaped ascus apical ring bluing in Melzer's reagent. The differences between the new species and the related fungi are discussed. Another penzigioid Xylaria species, X. sibirica, is reported in China for the first time.