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首页> 外文期刊>Applied Soil Ecology >Alterations in soil bacterial community in relation to Spartina alterniflora Loisel. invasion chronosequence in the eastern Chinese coastal wetlands
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Alterations in soil bacterial community in relation to Spartina alterniflora Loisel. invasion chronosequence in the eastern Chinese coastal wetlands

机译：土壤细菌群落与斯巴塔基纳德林群落的改变。 入侵中国沿海湿地的急生急性

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摘要

In order to better understand the variations in soil bacterial community and associated drivers following plant invasion, we investigated changes in soil bacterial community along with 9-, 13-, 20- and 23-year-old Spartina alterniflora Loisel. (SA) invasion in comparison with bare flat (BF) in the eastern Chinese coastal wetlands, based on analyses of quantitative polymerase chain reaction (qPCR) and Illumina MiSeq DNA sequencing of 16S rRNA gene. The SA invasion significantly elevated soil bacterial abundance and diversity relative to BF, with the highest levels in 9-year-old SA soil, which gradually decreased with SA invasion from 9 to 23 years. The abundance of copiotrophic Proteobacteria, beta-proteobacteria, and Bacteroidetes generally diminished along with SA invasion chronosequence. While, changes in abundance of oligotrophic Chloroflexi, Acidobacteria, Nitrospirae and Planctomycetes exhibited opposite trends. Our data suggest that soil nutrient substrates, and physiochemical properties (soil pH and/or moisture) primarily drive the shifts in soil bacterial abundance, diversity, and community composition along with SA invasion chronosequence in the costal wetlands of eastern China. Overall, soil bacterial abundance and diversity peaked in 9-year-old SA community, with soil bacterial community composition changing from copiotrophic to oligotrophic groups along with SA invasion chronosequence.
机译：为了更好地了解植物侵袭后土壤细菌群落和相关司机的变化，我们研究了土壤细菌群落的变化以及9-，13岁，20岁和23岁的Spartina alternflora Loisel。 （SA）与中国东部沿海湿地的裸露（BF）相比，基于分析的定量聚合酶链反应（QPCR）和Illumina Miseq DNA测序为16S rRNA基因的裸露的湿地（BF）。 SA侵袭相对于BF的土壤细菌丰富和多样性显着升高，9岁的SA土壤中的最高水平，SA侵入从9至23年逐渐降低。丰富的胃抚养蛋白植物，β-噬菌体和菌株通常随着SA侵袭血管酮而降低。虽然但是含有植物氯昔洛氏菌，抗酸杆菌，氮气和平分霉菌的丰富变化表现出相反的趋势。我们的数据表明，土壤养分基材和生理化学性质（土壤pH和/或水分）主要推动土壤细菌丰度，多样性和群落组成的变化以及东部昂贵湿地的SA入侵时间序列。总体而言，土壤细菌丰富和多样性达到9岁的SA社区，土壤细菌群落组成从豆类营养到寡噬细胞群以及SA侵袭血管核。

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