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A Novel Phellinidium sp. Causes Laminated Root Rot on Qilian Juniper (Sabina przewalskii) in Northwest China

January 2015 , Volume 99 , Number  1
Pages  39 - 43

Bao-Kai Cui, Yu-Cheng Dai, and Shuang-Hui He, Institute of Microbiology, Beijing Forestry University, P.O. Box 61, Beijing 100083, China; and Li-Wei Zhou and Hai-Sheng Yuan, State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110164, China



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Accepted for publication 7 July 2014.
Abstract

A laminated root rot on Qilian juniper (Sabina przewalskii) caused by a species of Phellinidium (Basidiomycota) was observed in northwest China. Seventeen fungal samples collected from Qinghai Province during 2012 and 2013 were used for taxonomic and pathogenicity tests. The fungal pathogen was identified by morphological characters and phylogenetic analyses based on nLSU sequences. A new fungus is described herein as Phellinidium qilianense sp. nov. One-year-old Qilian juniper seedlings were wound-inoculated under controlled conditions to test pathogenicity of the fungal species. The fungus was successfully reisolated from decayed tissue of tested seedlings. P. qilianense is a new forest pathogen on coniferous trees in China.



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