Bacterial community in peanut soils in various cropping systems

文献类型： 外文期刊

第一作者： Huang, Y. Q.

作者： Huang, Y. Q.;Han, L. S.;Tao, T. T.;Yao, Y. C.;Yang, J. F.;Liang, C. H.;Xie, J. H.;Han, X. R.;Han, L. S.;Liang, C. H.;Xie, J. H.

作者机构：

关键词： Amendments;Archis hypogea;bacterial diversity;bacterial communities;continuous cropping;crop rotation;illumina sequencing;maize;monoculture;peanut;soil microbes;Zea mays

期刊名称：ALLELOPATHY JOURNAL （ 影响因子：0.962； 五年影响因子：0.99 ）

ISSN：

年卷期：

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收录情况： SCI

摘要： We investigated (i). the composition of soil bacterial communities in continuous monoculture and rotation in 3-cropping systems (continuous maize monoculture for 3 years, continuous peanut monoculture for 3 years, maize-peanut rotation), (ii). if soil bacterial communities in the rhizosphere were affected by the addition of chemical soil amendments (mixture of biochar and silicon powder) and biological soil amendments (Kuai-rui-song) in continuous monoculture peanut. The Analysis of the V4 16S rRNA gene region on the Illumina MiSeq platform, identified the changes in bacterial diversity and community structure. Although the composition of predominant taxa was similar in all 5-treatments, but there were few differences in the least-abundant phyla such as Synergistetes, Tenericutes, GAL15 and WS2. There were four unique phyla [Synergistetes, GAL15, WS2 and Kazan-3B-281 in peanut fields in continuous monoculture. Four phyla [Tenericutes, WS2, OP3 and FCPU426] were significantly different (p < 0.05) in the peanut monoculture field and in the maize-peanut rotation field. Continuous monoculture with peanut had the highest bacterial community richness, as indicated by high Chao index and Ace index. In maize-peanut rotation, the rhizosphere bacteria belonged to 500 genera. Among the bacteria, Bradyrhizobium, Rhodospirillum, Burkholderia, Candidatus Koribacter, Candidatus, Solibacter and Koribacteraceae were more frequent. Although there was no improvement in bacterial diversity at the generic level, but the addition of soil amendments slightly altered the bacterial diversity than in peanut monoculture and the addition of biological soil amendment was slightly better than the chemical additive.

分类号： Q94

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