一蚁巢中束梗孢类昆虫病原真菌的多型现象II.隐存的一个多头束霉新种，蚁生多头束霉

Phenotypic polymorphism of the stilbellaceous entomogenous fungi in an ant nest of Ponera II. A cryptic new Tilachlidium species, Tilachlidium poneraticum

摘要:

【目的】探明在一个猛蚁Ponera sp.蚁巢罹病兵蚁上的一株束梗孢类昆虫病原真菌的分类地位。【方法】主要基于表型特征(特别是营养来源)结合分子系统学及拆分网络的组合分析。【结果】通过表型特征比较，菌株GZAC XCH-ant-710以寄主为蚂蚁、较小的瓶梗(11.9?16.2) μm× 1.1 μm和分生孢子(2.2?4.3) μm×1.1 μm与其他几种寄生昆虫的多头束霉已知种相区别。【结论】基于表型特征(特别是营养来源)与种的界定及进化关系的理论支持，及多途径的组合分析揭示，菌株GZAC XCH-ant-710是多头束霉属一新成员，蚁生多头束霉Tilachlidium poneraticum。

Abstract:

[Objective] To identify the taxonomic status of a stilbaceous entomopathogenic fungus collected on the soldier ant of Ponera. [Methods] The analysis mainly based on phenotypic traits (especially from the nutritional supplies), combined of molecular phylogeny and splits network. [Results] The strain GZAC XCH-ant-710 distinguished from the other Tilachlidium species by the ant host, the size of phialide and conidia, (11.9?16.2) μm×1.1 μm, (2.2?4.3) μm×1.1 μm, respectively. [Conclusion] The strain GZAC XCH-ant-710 is a new species, supported by the phenotypic traits (especially from the nutritional supplies), species delimitation, theory of evolutionary relationship, and multipath of combined analysis, and named Tilachlidium poneraticum.