Salvador-Montoya Carlos A, Elias Samuel G, Popoff Orlando F, Robledo Gerardo L, Urcelay Carlos, Góes-Neto Aristóteles, Martínez Sebastián, Drechsler-Santos Elisandro R
Laboratorio de Micología, Instituto de Botánica del Nordeste-IBONE, Universidad Nacional del Nordeste-UNNE, CC 209, Corrientes W3400, Argentina.
Consejo Nacional de Investigaciones Científicas y Técnicas-CONICET, Godoy Cruz 2290, CABA, CP C1425FQB, Buenos Aires C1425, Argentina.
J Fungi (Basel). 2022 Feb 22;8(3):216. doi: 10.3390/jof8030216.
Phellinotus, a neotropical genus of wood-decay fungi commonly found on living members of the Fabaceae family, was initially described as containing two species, P. neoaridus and P. piptadeniae. The members of this genus, along with six other well-established genera and some unresolved lineages, are the current representatives of the ‘phellinotus clade’. On the other hand, based on a two-loci phylogenetic analysis, some entities/lineages of the ‘phellinotus clade’ have been found in Fomitiporella s.l. In this work, we performed four-loci phylogenetic analyses and based on our results the genera of the ‘phellinotus clade’ are shown to be monophyletic groups. In addition to the natural groups confirmed as different genera, morphological revisions, phylogenetic relationships, and host distribution of different specimens resembling P. neoaridus and P. piptadeniae revealed three new species in the Phellinotus genus, referred to here as P. magnoporatus, P. teixeirae and P. xerophyticus. Furthermore, for P. piptadeniae a narrower species concept was adopted with redefined morphological characters and a more limited distribution range. Both P. neoaridus and P. teixeirae have a distribution range restricted to seasonally dry tropical forests in South America. Additionally, based on detailed morphological revisions Phellinus badius, Phellinus resinaceus, and Phellinus scaber are transferred to the Phellinotus genus. The geographic distribution and host range of the genus are then discussed.
桑黄孔菌属是一种新热带地区的木腐真菌，常见于豆科植物的活体成员上，最初被描述为包含两个物种，即新干旱桑黄孔菌和皮氏豆科桑黄孔菌。该属的成员，连同其他六个已确立的属和一些未解决的谱系，是“桑黄孔菌分支”的当前代表。另一方面，基于双基因座系统发育分析，在广义拟层孔菌属中发现了“桑黄孔菌分支”的一些实体/谱系。在这项工作中，我们进行了四基因座系统发育分析，结果表明“桑黄孔菌分支”的属是单系类群。除了被确认为不同属的自然类群外，对类似新干旱桑黄孔菌和皮氏豆科桑黄孔菌的不同标本进行形态学修订、系统发育关系分析和寄主分布研究后，在桑黄孔菌属中发现了三个新物种，这里称为大孔桑黄孔菌、特氏桑黄孔菌和旱生桑黄孔菌。此外，对于皮氏豆科桑黄孔菌，采用了更狭义的物种概念，重新定义了形态特征并缩小了分布范围。新干旱桑黄孔菌和特氏桑黄孔菌的分布范围都局限于南美洲季节性干燥的热带森林。此外，基于详细的形态学修订，将坏损木层孔菌、树脂木层孔菌和粗糙木层孔菌转移到桑黄孔菌属。然后讨论了该属的地理分布和寄主范围。
