A new Rhizopogon species associated with Pinus amamiana from Japan
A new Rhizopogon species associated with Pinus amamiana from Japan
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与日本滨松 (Pinus amamiana) 相关的 Rhizopogon 新种
DOI：
10.1016/j.myc.2017.10.001
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发表时间：
2018
期刊：
影响因子：
1.4
通讯作者：
Nara K
中科院分区：
文献类型：
--
作者：
Sugiyama Y;Murata M;Nara K
松属（Pinus amamiana）是一种濒危的松属植物，仅分布于日本屋久岛和种子岛。我们调查了剩余的P. amamiana森林，发现了一些牛肝菌（Boletales）的子实体，其中许多物种表现出严格的寄主特异性，以一个狭窄的范围内的松科树木，并发挥关键作用，在主机建立。根据形态特征和分子系统学研究，本文描述了一个新的分支-八带刺草Roppogonyakushimensissp. nov.，该种与Versicolores亚属和Roppogon亚属有亲缘关系。我们还通过比较孢子果和外生菌根根尖之间的rDNA ITS序列，证实了其与P. amamamiana的外生菌根关联。
Pinus amamiana is an endangered Pinus species found only on Yakushima Island and Tanegashima Island, Japan. We surveyed remaining P. amamiana forests and found some sporocarps of Rhizopogon (Boletales), many species of which exhibit strict host specificity to a narrow range of Pinaceae trees and play critical roles in host establishment. Based on morphological characteristics and molecular phylogeny, here we describe Rhizopogon yakushimensis sp. nov. This new species belongs to a new clade, phylogenetically related to the subgenera Versicolores and Rhizopogon. We also confirmed its ectomycorrhizal association with P. amamiana by comparing rDNA ITS sequences between the sporocarps and ectomycorrhizal root tips.