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Characterization of the microbial community response to replant diseases in peach orchards

文献类型： 外文期刊

作者： Li, Wei-hua 1 ; Chen, Peng 1 ; Wang, Yu-zhu 4 ; Liu, Qi-zhi 1 ;

作者机构： 1.China Agr Univ, Coll Plant Protect, Lab Entomol & Nematol, Beijing 100193, Peoples R China

2.Chinese Acad Sci, Inst Zool, State Key Lab Integrated Management Pest Insects &, Beijing 100101, Peoples R China

3.Shandong Acad Agr Sci, Inst Plant Protect, Shandong Prov Engn Technol Res Ctr Biocontrol Crop, Key Lab Nat Enemies Insects,Minist Agr & Rural Aff, Jinan 250100, Peoples R China

4.Beijing Acad Agr & Forestry Sci, Inst Forestry & Pomol, Beijing 100093, Peoples R China

关键词： replant disease; complex syndrome; microbial community; high-throughput sequencing; environmental variables

期刊名称：JOURNAL OF INTEGRATIVE AGRICULTURE （ 影响因子：4.8； 五年影响因子：4.8 ）

ISSN： 2095-3119

年卷期： 2023 年 22 卷 4 期

页码：

收录情况： SCI

摘要： This study attempted to monitor the development of microbial communities and reveal the correlation between the soil microbial community and soil nutrient factors over different years following the replanting of peach trees. The replanted soil (RS) and nonreplanted soil (NRS) were collected from peach orchards with different growth years (1, 3, 5, 7, 9, 11, and 13 years) in the same region. The soil bacterial and fungal community diversities were analyzed by high-throughput sequencing technology. Redundancy analysis (RDA) was used to show the correlation between the soil microbial community and environmental variables. The alpha diversities of the bacterial and fungal communities indicated that RS contained a higher abundance of bacterial and fungal operational taxonomic units (OTUs) than NRS. NMDS and ANOSIM analyses showed that the soil bacterial and fungal communities were significantly (P<0.01) affected by planting years, and that the main changes occurred in the first and ninth planting years. The presence of the bacterial orders Sphingobacteriales, Burkholderiales and Actinomycetales changed significantly after replanting. Some bacteria associated with bioremediation, such as Burkholderiales and Intrasporangiaceae, and some harmful pathogens, such as Penicillium and Ophiostomatales, significantly increased after replanting (LDA score>3.0). In addition, the soil nutrient contents were lower in RS than in NRS in the early stage (1-5 years), and the RDA showed that bacterial and fungal phyla are closely associated with environmental variables, including the potential of hydrogen (pH), ammonium nitrogen (AN), available phosphorus (AP) and available potassium (AK). These results lead to a deeper understanding of the microbial responses to replanting in peach orchards.

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