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首页> 外文期刊>Mycologia >Plant diversity and plant identity influence Fusarium communities in soil
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Plant diversity and plant identity influence Fusarium communities in soil

机译：植物多样性和植物身份影响土壤中的富升社区

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Fusarium communities play important functional roles in soil and in plants as pathogens, endophytes, and saprotrophs. This study tests how rhizosphere Fusarium communities may vary with plant species, changes in the diversity of the surrounding plant community, and soil physiochemical characteristics. Fusarium communities in soil associated with the roots of two perennial prairie plant species maintained as monocultures or growing within polyculture plant communities were characterized using targeted metagenomics. Amplicon libraries targeting the RPB2 locus were generated from rhizosphere soil DNAs and sequenced using pyrosequencing. Sequences were clustered into operational taxonomic units (OTUs) and assigned a taxonomy using the Evolutionary Placement Algorithm. Fusarium community composition was differentiated between monoculture and polyculture plant communities, and by plant species in monoculture, but not in polyculture. Taxonomic classification of the Fusarium OTUs showed a predominance of F. tricinctum and F. oxysporum as well of the presence of a Glade previously only found in the Southern Hemisphere. Total Fusarium richness was not affected by changes in plant community richness or correlated with soil physiochemical characteristics. However, OTU richness within two predominant phylogenetic lineages within the genus was positively or negatively correlated with soil physiochemical characteristics among samples within each lineage. This work shows that plant species, plant community richness, and soil physiochemical characteristics may all influence the composition and richness of Fusarium communities in soil.
机译：富升社区在土壤中和植物中发挥重要功能作用，作为病原体，内心细胞和嗜血症。本研究检测根际镰刀镰刀菌群如何随植物物种而变化，周围植物群落的多样性变化，以及土壤生理化学特征。使用有针对性的偏心神经论表征与长期大草原植物物种的两种多年生大草原植物物种相关的土壤中的镰刀菌群进行特征。靶向RPB2基因座的扩增子文库是从根际土壤DNA产生并使用焦点测序测序。将序列聚集成运营分类单位（OTUS）并使用进化放置算法分配分类法。镰刀菌群落组成是不同的单一培养和植物植物社区之间的区分，并在单一栽培中的植物物种之间，但不在植物中。 Fusarium Otus的分类学分类表明F. Tricinctum和F. Oxysporum以及以前仅在南半球发现的林石的存在。镰刀内富疮性总富含镰刀菌，不受植物群落丰富的变化或与土壤生理化学特征相关的影响。然而，在属中的两种主要系统发育谱系内的oTu丰富性与每个谱系内的样品中的样品中的土壤生理化学特征正面或呈负相关。这项工作表明，植物物种，植物群体丰富性和土壤生理化学特征都可能影响土壤中镰刀菌群的组成和丰富性。

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