First report of community dynamics of arbuscular mycorrhizal fungi in radiocesium degradation lands after the Fukushima-Daiichi Nuclear disaster in Japan
First report of community dynamics of arbuscular mycorrhizal fungi in radiocesium degradation lands after the Fukushima-Daiichi Nuclear disaster in Japan
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DOI：
10.1038/s41598-019-44665-7
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发表时间：
2019-06-03
影响因子：
4.6
通讯作者：
Isobe, Katsunori
中科院分区：
文献类型：
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作者：
Higo, Masao;Kang, Dong-Jin;Isobe, Katsunori
丛枝菌根真菌（AMF）可以通过土壤修复促进放射性铯（Cs-137）污染土壤的修复。然而，一直没有信息的物种多样性和AMF社区的组成Cs-137污染的土壤后，福岛第一核电站（NPP）灾难。我们通过Illumina MiSeq测序调查，在2013年（采样年1）和2014年（采样年2），在日本福岛第一核电站周围30 km半径范围内，研究了两种不同的'Cs污染土地利用领域（草地和稻田）中，本地AMF定殖狼尾草（Pennisetum purpureum）根系的群落动态。在根中发现9个AMF科，包括球囊霉科、巨孢霉科、拟球囊霉科、明球囊霉科、无梗孢霉科、原孢霉科、两性孢霉科、多孢霉科和未培养球囊霉亚门。草地和稻田中球囊霉科的种类最多，其次是拟球囊霉科。2014年草地和稻田AMF多样性高于2013年。AMF群落结构受采样年份和土地利用类型的影响。在为期2年的调查中，土地利用类型和年份也显著影响了定植于napiergrass根的AMF群落结构。据我们所知，我们的研究结果是第一次报告，以揭示土著AMF的社区动态在周围的Cs-137污染领域核电厂。
Arbuscular mycorrhizal fungi (AMF) can be beneficial for improving restoration of radioactive-cesium (Cs-137)-contaminated soils through soil remediation. However, there has been no information on species diversity and the composition of AMF communities in Cs-137-contaminated soil after the FukushimaDaiichi Nuclear Power Plant (NPP) disaster. We examined the community dynamics of indigenous AMF colonizing roots of napiergrass (Pennisetum purpureum) in two different 'Cs-contaminated land-use fields (grassland and paddy field) by an Illumina MiSeq sequencing investigation within a 30-km radius around the Fukushima-Daiichi NPP in 2013 (sampling year 1) and 2014 (sampling year 2). We found nine AMF families, including Glomeraceae, Gigasporaceae, Paraglomeraceae, Claroideoglomeraceae, Acaulosporaceae, Archeosporaceae, Ambisporaceae, Diversisporaceae and uncultured Glomeromycotina in roots. Glomeraceae was the most abundant in both grassland and paddy field, followed by Paraglomeraceae. The diversity of AMF in grassland and paddy field was higher in 2014 than in 2013. Furthermore, the AMF community structure was impacted by sampling year and land-use type. The AMF community structures colonizing napiergrass roots were also significantly impacted by landuse type and year throughout the 2-year investigation. To our knowledge, our results are the first report to reveal the community dynamics of indigenous AMF in the Cs-137-contaminated fields around NPP.