Wieland G, Neumann R, Backhaus H
Federal Biological Research Centre for Agriculture and Forestry, Institute for Plant Virology, Microbiology and Biosafety, Braunschweig, Germany.
Appl Environ Microbiol. 2001 Dec;67(12):5849-54. doi: 10.1128/AEM.67.12.5849-5854.2001.
We investigated the influence of plant species, soil type, and plant development time on the shaping of microbial communities in soil and in association with roots. The sample group consisted of a total of 32 microcosms in three habitats: soil, rhizosphere, and rhizoplane. Communities were represented by the patterns of a sequence-specific separation of rRNA target sequences. Effects of experimental parameters were classified by a cluster analysis of pattern similarities. The type of plant species (clover, bean, or alfalfa) had the greatest effect in plant-associated habitats and also affected soil patterns. Plant development had a minor habitat-dependent effect that was partly obscured by replicate variation. The results stress the applicability of biased community representations in an analysis of induced variation.
我们研究了植物种类、土壤类型和植物发育时间对土壤及根际微生物群落形成的影响。样本组共有32个微观世界,分布在三个生境中:土壤、根际和根表。群落通过rRNA靶序列的序列特异性分离模式来表示。通过模式相似性的聚类分析对实验参数的影响进行分类。植物种类(三叶草、豆类或苜蓿)在与植物相关的生境中影响最大,也影响土壤模式。植物发育对生境的依赖性较小,部分被重复变异所掩盖。结果强调了有偏差的群落表示法在诱导变异分析中的适用性。