| 刊名 | Plant Diseases and Pests |
| 作者 | Zerong GENG， Tianhua YU， Zhannan YANG， Shiqiong LUO |
| 作者单位 | Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University； School of Life Sciences, Guizhou Normal University |
| DOI | 10.19579/j.cnki.plant-d.p.2024.01.003 |
| 年份 | 2024 |
| 刊期 | 1 |
| 页码 | 7-15 |
| 关键词 | Artemisia annua; Core bacterial communities; Pathogenic fungi; Bacteria versus fungi |
| 摘要 | [Objectives] This paper was to figure out whether the dominant bacterial community has the role and effect of bacterial community and its defense mechanism against potential pathogenic fungi in Artemisia annua, and thus establish a systematic model of bacteria-fungus-plant. [Methods] Fifty-eight strains of bacteria and one strain of pathogenic fungi, Globisporangium ultimatum, were used for the experiments. These 58 bacterial strains were assembled into a bacterial community, and the bacteria with abundance in the top 1% were reassembled into a dominant bacterial community as measured by 16S rDNA. [Results] The growth of A. annua seedlings inoculated with bacterial communities and pathogenic fungi or dominant bacterial communities and pathogenic fungi was significantly better than that of A. annua seedlings inoculated with pathogenic fungi during in vitro confrontation, which was evident in both enzymatic and non-enzymatic antioxidant assays. [Conclusions] The results suggest that the dominant bacterial community has a crucial role as a representative core microbial community of synthetic bacterial community, which can protect plants by interfering with the growth of phytopathogenic fungi mediated by chemical signals, and can be used as the main synthetic community of biocides to achieve the effect of biocontrol. |
