The presence of a foreign microbial community promotes plant growth and reduces filtering of root fungi in the arctic-alpine plant Silene acaulis

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Conor V. Meade, Clifton P. Bueno de Mesquita, S. K. Schmidt, K. Suding
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引用次数: 1

Abstract

ABSTRACT Background Climate change is expected to drive trailing-edge range redistributions of arctic-alpine plant populations, bringing together immigrant plant ecotypes and soil microbial communities associated with already resident ecotypes. Aims The goal of the present study was to assess growth performance and plant–microbe interactions between seedlings and native and foreign microbial communities in ecotypes of the cushion plant Silene acaulis from Europe and North America. Methods Using seed sourced from Colorado, USA, and Ireland we grew Silene seedlings in sterile bulk soil with live inocula added from their own local soil and each other’s soil. We measured above-ground plant growth metrics, and analysed fungal and bacterial community composition using marker gene sequencing and microscopy. Results Seedlings growing in foreign soil inocula showed significantly greater biomass or shoot length compared to growth in home soil inocula. While seedling root microbiomes were overall convergent with each other compared to source soil inocula, significantly lower filtering of fungal taxa from the soil was observed for seedlings growing in foreign compared to home soil inocula. Conclusions Foreign plant ecotypes from distant habitats may experience competitively beneficial effects when growing in local soil communities; however, the nature and generality of these interactions requires further analysis.
外来微生物群落的存在促进了北极高山植物Silene acaulis的植物生长并减少了根真菌的过滤
气候变化将推动北极-高寒植物种群的迁移范围再分配,将迁移的植物生态型和与已居住生态型相关的土壤微生物群落聚集在一起。本研究的目的是评估来自欧洲和北美的缓冲植物Silene acaulis生态型幼苗与本地和外来微生物群落之间的生长性能和植物-微生物相互作用。方法采用来自美国科罗拉多州和爱尔兰的种子,在无菌的块状土壤中培养Silene幼苗,并在当地土壤和对方土壤中添加活疫苗。我们测量了地上植物的生长指标,并利用标记基因测序和显微镜分析了真菌和细菌的群落组成。结果与本土接种苗相比,外源接种苗的生物量和苗长均显著增加。虽然与源土接种剂相比,幼苗根系微生物组总体上趋同,但与本土接种剂相比,国外接种剂对土壤真菌分类群的过滤明显较低。结论来自远方生境的外来植物生态型在当地土壤群落生长时可能产生竞争优势;然而,这些相互作用的性质和普遍性需要进一步分析。
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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