| 张钰玉,陈智雄,陈方,等.不同土壤条件下辣椒根际土壤微生物群落分布特征研究[J].广东农业科学,2024,(4-6):- |
| Investigation of Rhizospheric Microbial Community in Pepper under Varied Soil ConditionsYuyu Zhang1*, Zhixiong Chen1, Fang Chen1, Jinqiang Yan2 *,Junyu Wu1,Qingyuan Xi3,Shumei Ge1 |
| 投稿时间：2023-12-29 修订日期：2024-03-21 |
| DOI： |
|
| 摘要点击次数: 59 |
| 全文下载次数: 0 |
| Abstract: |
| 【Objective】This study endeavors to examine the distribution patterns of rhizospheric microbial communities in diverse resistant pepper varieties, laying the groundwork for investigating the biological control mechanisms of soil-borne diseases in peppers. 【Methods】 Employing the susceptible variety HL99 and the resistant variety SSQ as experimental materials, we utilized high-throughput sequencing technology to scrutinize and compare the impacts of diseased and non-diseased soil conditions on the diversity, species composition, correlation networks, and functions of bacterial and fungal communities in distinct disease-resistant pepper rhizospheric soils. 【Results】Diverse disease-resistant pepper varieties exhibit distinct effects on soil domestication, directly influencing the distribution of rhizosphere soil microbial communities and subsequently impacting pepper growth. Disease environments can result in a decrease in bacterial richness and an increase in fungal richness in the soil. Under disease conditions, the bacterial community exhibits a more pronounced response, but there is no significant difference in bacterial community structure between different disease-resistant varieties. However, a noticeable difference exists in the fungal community structure among different disease-resistant varieties. Nevertheless, under different treatments and varieties, the relative abundance of individual bacterial or fungal genera does not exhibit a significant correlation with pepper growth performance. In comparison, disease-resistant varieties can recruit a greater number of beneficial fungi in the rhizosphere, forming a correlated network structure within and between groups. This phenomenon may contribute to the formation of distinct microbial community structures, enhancing pepper resistance to diseases and promoting the growth of disease-resistant pepper varieties under disease conditions.【Conclusion】The correlated network structure established by beneficial fungi and bacteria in the rhizosphere of disease-resistant pepper varieties enhances pepper"s resilience to disease environments and optimizes its growth performance. The identification of fungi such as Fusarium, Verticillium, Acremonium, Cladosporium, Botrytis, Trichoderma, Talaromyces and Arthrobotrys, alongside bacteria such as Bacillus, Streptomyces, and Pseudomonas, elucidating their respective intra- and inter-group correlation network structures, will supply crucial information for soil domestication research, the selection and colonization of biocontrol resources, and serve as a fundamental theoretical reference for the biological control of soil-borne diseases. |
|
View Fulltext
查看/发表评论 下载PDF阅读器 |
|
|
|
