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Nitrogen fertilizer amount has minimal effect on rhizosphere bacterial diversity during different growth stages of peanut

文献类型： 外文期刊

作者： Yang, Zheng 1 ; Li, Lin 2 ; Zhu, Wenjuan 1 ; Xiao, Siyuan 1 ; Chen, Siyu 1 ; Liu, Jing 1 ; Xu, Qian 1 ; Guo, Feng 3 ; Lan, Shile 1 ;

作者机构： 1.Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha, Hunan, Peoples R China

2.Hunan Agr Univ, Coll Agron, Changsha, Hunan, Peoples R China

3.Shandong Acad Agr Sci, Biotechnol Res Ctr, Jinan, Shandong, Peoples R China

关键词： Rhizosphere microbiota; Nitrogen fertilizer; Peanut; Arachis hypogaea; High-throughput sequencing

期刊名称：PEERJ （ 影响因子：3.061； 五年影响因子：3.537 ）

ISSN： 2167-8359

年卷期： 2022 年 10 卷

页码：

收录情况： SCI

摘要： The impact of short-term nitrogen fertilizer input on the structure and diversity of peanut rhizosphere microbiota (RM) at different growth stages (GSs) was explored in the southern paddy soil planting environment. Three levels of nitrogen were applied in the field: control (LN, 0 kg/hm2), medium nitrogen (MN, 55.68 kg/hm2), and high nitrogen (HN, 111.36 kg/hm2). The rhizosphere soil was collected during four GSs for high-throughput sequencing and chemical properties analysis. The effect of nitrogen fertilizer application on peanut RM was minimal and was obvious only at the seedling stage. In the four peanut GSs, a significant increase in relative abundance was observed for only one operational taxonomic unit (OTU) of Nitrospira under HN conditions at the seedling stage and mature stage, while there was no consistent change in other OTUs. The difference in RM among different peanut GSs was greater than that caused by the amount of nitrogen fertilizer. This may be due to the substantial differences in soil chemical properties (especially alkali-hydrolyzable nitrogen, pH, and available potassium or total potassium) among peanut GSs, as these significantly affected the RM structure. These results are of great value to facilitate deeper understanding of the effect of nitrogen fertilizer on peanut RM structure.

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[1]Nitrogen fertilizer amount has minimal effect on rhizosphere bacterial diversity during different growth stages of peanut. Yang, Zheng,Zhu, Wenjuan,Xiao, Siyuan,Chen, Siyu,Liu, Jing,Xu, Qian,Lan, Shile,Li, Lin,Guo, Feng. 2022

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