Identification of Ophiostomatalean Fungi Associated with Infesting in Northeastern China

Overview

Journal Front Microbiol

Specialty Microbiology

Date 2022 Sep 19

PMID 36118248

Authors

Huimin Wang

Caixia Liu

Fangzheng Yue

Dong-Hui Yan

Quan Lu

Affiliations

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Abstract

Ophiostomatalean fungi usually facilitate bark beetles to infest tree hosts and seriously endanger the health of coniferous forests. Spessivtsev is a common endemic bark beetle in Asia and primarily threatens . species have similar morphology; however, they can be differentiated by their genetic characteristics through phylogenetic analyses. To date, the 28S rDNA sequence of and the diversity of ophiostomatalean fungi associated with have not been reported. In this study, we aimed to clarify the taxonomic status of and identify ophiostomatalean fungi associated with infesting in northeastern China. In total, 315 ophiostomatalean fungal strains were isolated from 62 adults of and 220 tissue samples from galleries in Jilin Province. Thirty-five representative strains were further identified by comparing their morphological and physiological characteristics and conducting the phylogenetic analysis of ITS, ITS2-LSU, TUB2, and TEF1-α. We identified nine species of ophiostomatalean fungi belonging to four genera, which included six novel species ( sp. nov., sp. nov., sp. nov., sp. nov., sp. nov., and sp. nov.), two previously described species ( and ), and one undefined specie ( sp. 1). To the best of our knowledge, this is the first report of . and . in China and the fungal diversity of ophiostomatalean in . The dominant species were and , representing 39.37% and 35.87% of the isolates, respectively. The results of this study provide valuable information on the symbiotic relationship between bark beetles and ophiostomatalean fungi.

Citing Articles

Ophiostomatalean Fungi (Ascomycota, Ophiostomatales) Associated with Three Beetles from var. in Heilongjiang, China.

Wang Z, Liu C, Tie Y, Song X, Wang H, Lu Q J Fungi (Basel). 2025; 11(1).

PMID: 39852446 PMC: 11766559. DOI: 10.3390/jof11010027.

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