https://scholars.lib.ntu.edu.tw/handle/123456789/626167
標題: | The brown root rot fungus Phellinus noxius affects microbial communities in different root-associated niches of Ficus trees | 作者: | Liu T.-Y Chen C.-H Yang Y.-L Tsai I.J Ho Y.-N CHIA-LIN CHUNG |
公開日期: | 2022 | 卷: | 24 | 期: | 1 | 起(迄)頁: | 276-297 | 來源出版物: | Environmental Microbiology | 摘要: | Brown root rot (BRR) caused by Phellinus noxius is a destructive tree disease in tropical and subtropical areas. To understand how BRR affects the composition of the plant rhizoplane-enriched microbiota, the microbiomes within five root-associated compartments (i.e., bulk soil, old/young root rhizosphere soil, old/young root tissue) of Ficus trees naturally infected by P. noxius were investigated. The level of P. noxius infection was determined by quantitative PCR. Illumina sequencing of the internal transcribed spacer and 16S rRNA revealed that P. noxius infection caused a significant reduction in fungal diversity in the bulk soil, the old root rhizosphere soil, and the old root tissue. Interestingly, Cosmospora was the only fungal genus positively correlated with P. noxius. The abundance and composition of dominant bacterial taxa such as Actinomadura, Bacillus, Rhodoplanes, and Streptomyces differed between BRR-diseased and healthy samples. Furthermore, 838 isolates belonging to 26 fungal and 35 bacterial genera were isolated and tested for interactions with P. noxius. Antagonistic activities were observed for isolates of Bacillus, Pseudomonas, Aspergillus, Penicillium, and Trichoderma. Cellophane overlay and cellulose/lignin utilization assays suggested that Cosmospora could tolerate the secretions of P. noxius and that the degradation of lignin by P. noxius may create suitable conditions for Cosmorpora growth. © 2021 Society for Applied Microbiology and John Wiley & Sons Ltd. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85121722488&doi=10.1111%2f1462-2920.15862&partnerID=40&md5=f4cf22fbc14989aefd20cf5e01f4d267 https://scholars.lib.ntu.edu.tw/handle/123456789/626167 |
ISSN: | 14622912 | DOI: | 10.1111/1462-2920.15862 | SDG/關鍵字: | RNA 16S; Basidiomycetes; Ficus; genetics; microbiology; microflora; plant disease; plant root; rhizosphere; tree; Trichoderma; Basidiomycota; Ficus; Microbiota; Plant Diseases; Plant Roots; Rhizosphere; RNA, Ribosomal, 16S; Soil Microbiology; Trees; Trichoderma |
顯示於: | 植物病理與微生物學系 |
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