Two new species of Phylloporus from Bangladesh, with morphological and molecular evidence
Two new species of Phylloporus from Bangladesh, with morphological and molecular evidence
复制标题
DOI：
10.1080/00275514.2017.1312196
复制
发表时间：
2017-03
期刊：
影响因子：
2.8
通讯作者：
Iqbal Hosen;Taihui Li
中科院分区：
文献类型：
--
作者：
Iqbal Hosen;Taihui Li
摘要根据形态和分子系统发育证据，描述和图解了孟加拉森林中以罗布斯塔为优势种的两新种。该菌菌毛呈酒红色至棕红色，下延片层染成蓝色，菌柄向下逐渐变细，具毛状毛囊，担孢子椭圆形至椭圆形(7-8×4-5微米)。链状毛孔菌的特征是担子小，具红褐色菌毛，狭长下延，远端片层染成蓝色，具毛下层亚壁，担孢子椭圆形至椭圆形-卵圆形(8-9.5×4-5微米)。根据对Num rDNA内转录间隔区(ITS；包括ITS 1-ITS 2，但不包括5.8S)、核糖体大亚基(28S)结构域D1和D2以及翻译延伸因子1-α(TEF1α)的部分序列的系统发育分析，这两个新种都与已知的分类群不同。两种都与表型相似的分类群进行了比较，并用线条和照片进行了说明。提供了孟加拉国已知的Phyllopus种检索表。
ABSTRACT Two new species of Phylloporus from Bangladesh forests dominated by Shorea robusta are described and illustrated, based on morphological and molecular phylogenetic evidence. Phylloporus attenuatus is characterized by its wine-red to brownish-red pilei, decurrent lamellae that stain blue, downwards tapering stipe, a trichodermium pileipellis, and ellipsoidal-ovoid to ellipsoidal basidiospores (7–8 × 4–5 µm). Phylloporus catenulatus is characterized by its small-sized basidiomata with reddish-brown pilei, narrowly decurrent with distant lamellae that stain blue, a subepithelium pileipellis, and ellipsoidal to ellipsoidal-ovoid basidiospores (8–9.5 × 4–5 µm). Both new species of Phylloporus are distinctive from any known taxa based on phylogenetic analyses of partial sequences of the nuc rDNA internal transcribed spacer (ITS; including ITS1-ITS2 but not 5.8S) region, partial sequence of nuclear ribosomal large subunit (28S) domains D1 and D2, and translation elongation factor 1-α (TEF1α). Both species are compared with phenotypically similar taxa and illustrated with line drawings and photographs. A key to the species of Phylloporus known from Bangladesh is provided.