| 總結: | Bamboo is an economically important crop that has gained prominence as an alternative to wood to reduce deforestation and ecosystem destruction. Diseases of bamboo that typically occur on leaves and stems can cause significant loss, reducing the quality and yield of the bamboo. However, there are few reports identifying the fungal species diversity and potential pathogens of bamboo. Here, we describe four new species of plant fungi from the leaves of bamboo within Fujian provinces, China. Fungi were isolated from diseased leaves collected within Fujian province and identified based on their morphological characteristics and multilocus phylogenies using nucleotide sequences derived from combined datasets of the intervening 5.8S nrRNA gene (ITS), the 28S large subunit of nuclear ribosomal RNA gene (LSU), the large subunit of RNA polymerase I (<i>rpb1</i>), the translation elongation factor 1-α gene (<i>tef1-α</i>), and the partial beta-tubulin gene (<i>tub2</i>). These analyses helped reveal and clarify taxonomic relationships in the family Magnaporthaceae. The new species of bambusicolous fungi identified include two species of <i>Bifusisporella</i>, described as <i>B. fujianensis</i> sp. nov. and <i>B. bambooensis</i> sp. nov., and two species of <i>Apiospora</i>, described as <i>A. fujianensis</i> sp. nov. and <i>A. fuzhouensis</i> sp. nov. This study further expands the characterization and distribution of fungi associated with bamboo.
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