Spatial structuring of soil microbial communities in commercial apple orchards.
Spatial structuring of soil microbial communities in commercial apple orchards.
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DOI：
10.1016/j.apsoil.2018.05.015
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发表时间：
2018-09
期刊：
影响因子：
--
通讯作者：
Xu X
中科院分区：
文献类型：
--
作者：
Deakin G;Tilston EL;Bennett J;Passey T;Harrison N;Fernández-Fernández F;Xu X
土壤微生物群的最大变异发生在果园之间（大规模）。果园内土壤微生物群的空间结构在不同果园之间差异很大。不同的植被导致土壤微生物群落差异较大，尤其是真菌群落。表征空间微生物群落结构对于理解和解释一种作物物种的连续种植对后续作物性能的影响非常重要，特别是在这导致生长活力和作物产量降低的情况下。我们研究了两个具有对比农艺特征的历史悠久的果园中土壤细菌和真菌群落的空间结构，特别是相似性的距离衰减。采用空间明确采样策略从最近挖过的成排苹果树下和草地过道下收集土壤。基于扩增子的元条形码技术用于表征土壤微生物群落。结果表明，（1）土壤微生物群落结构的大部分差异是由于大尺度差异（即果园之间）造成的，（2）果园内部也存在小尺度（1-5 m）的空间变异，但果园之间微生物群落结构的空间关系不同且不可预测，（3）植被类型（即树木或草及其相关管理）可以显着改变土壤微生物群落的结构，影响很大微生物群的比例。果园内树站和邻近草道的土壤微生物群落结构的不连续性说明了植被类型以及联合杂草和养分管理对土壤微生物群落结构的重要性。
Most variability in soil microbiota is between orchards (large scale). Within-orchard spatial structure of soil microbiota varies greatly between orchards. Different vegetation causes large differences in soil microbiota, particularly fungal community. Characterising spatial microbial community structure is important to understand and explain the consequences of continuous plantation of one crop species on the performance of subsequent crops, especially where this leads to reduced growth vigour and crop yield. We investigated the spatial structure, specifically distance-decay of similarity, of soil bacterial and fungal communities in two long-established orchards with contrasting agronomic characteristics. A spatially explicit sampling strategy was used to collect soil from under recently grubbed rows of apple trees and under the grassed aisles. Amplicon-based metabarcoding technology was used to characterise the soil microbial communities. The results suggested that (1) most of the differences in soil microbial community structure were due to large-scale differences (i.e. between orchards), (2) within-orchard, small-scale (1–5 m) spatial variability was also present, but spatial relationships in microbial community structure differed between orchards and were not predictable, and (3) vegetation type (i.e. trees or grass and their associated management) can significantly alter the structure of soil microbial communities, affecting a large proportion of microbial groups. The discontinuous nature of soil microbial community structure in the tree stations and neighbouring grass aisles within an orchard illustrate the importance of vegetation type and allied weed and nutrient management on soil microbial community structure.
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使用通用的unifrac距离将微生物组组成与环境协变量相关联。
DOI：
10.1093/bioinformatics/bts342
发表时间：
2012-08-15
期刊：
Bioinformatics (Oxford, England)
影响因子：
--
作者：
Chen J;Bittinger K;Charlson ES;Hoffmann C;Lewis J;Wu GD;Collman RG;Bushman FD;Li H
通讯作者：
Li H
影响因子：
6.4
作者：
Dequiedt, S.;Saby, N. P. A.;Ranjard, L.
通讯作者：
Ranjard, L.
影响因子：
4.8
作者：
Fierer, Noah;Bradford, Mark A.;Jackson, Robert B.
通讯作者：
Jackson, Robert B.
影响因子：
3.7
作者：
Docherty KM;Borton HM;Espinosa N;Gebhardt M;Gil-Loaiza J;Gutknecht JL;Maes PW;Mott BM;Parnell JJ;Purdy G;Rodrigues PA;Stanish LF;Walser ON;Gallery RE
通讯作者：
Gallery RE
DOI：
10.1111/j.2517-6161.1995.tb02031.x
发表时间：
1995-01-01
影响因子：
5.8
作者：
BENJAMINI, Y;HOCHBERG, Y
通讯作者：
HOCHBERG, Y