MP_2025v16n3

Molecular Pathogens, 2025, Vol.16, No.3, 111-120 http://microbescipublisher.com/index.php/mp 118 be limited under high pathogen pressure or continuous high temperature and humidity environment. Studies in recent years have shown that the combined use of crop rotation with biocontrol measures such as microbial agents, biochar, and organic fertilizers can further improve the prevention and control effect (He et al., 2021; Gao et al., 2025). For example, the combination of Bacillus subtilis and Marigold rotation can enhance the colonization ability of antagonistic bacteria, prolong its active period in the rhizosphere environment, and form a more stable biocontrol barrier (Cha et al., 2021). The addition of biochar can adjust soil pH and buffer the diffusion path of pathogens, creating a good living space for antagonistic microorganisms. Figure 3 Schematic diagram for the identification of crop rotation-unique antagonistic core microbiomes to suppress wilt disease in banana (Adopted from Hong et al., 2023) Image caption: (a) Geographic location of Ledong County where the field experimental site was conducted in Hainan Province in China. (b) Crop rotation system in field and pot trials. A 2-yr field trial of pepper and eggplant was conducted for the first and second seasons in 2015 before banana was rotated in 2016. (c) Identification of rotation crop-unique antagonistic core taxa. The rotation crop-unique antagonistic core microbiome is defined as microbial taxa with consistently higher abundance in rhizosphere soils of the rotation season (2015) and banana growing season (2016) when compared to those in monoculture banana soils. (d) Targeted isolation of crop-unique antagonistic core taxa in soils. (e) Functional validation of crop rotation-unique antagonistic core taxa against wilt disease in banana. (E) was used as a control. Sterile water was established as a negative sterile water treatment to eliminate the plant growth-promoting effect of the E. tabaci strain (Adopted from Hong et al., 2023) In the future, we should strengthen the in-depth study of the interaction mechanism between non-host plants and microbial communities, and explore the dynamic process of rhizosphere signal transduction, biocontrol gene expression and soil system resistance formation. At the same time, regionalized and precise rotation technology solutions should be developed to promote the construction of the "crop-soil-microorganism" trinity disease green control technology system. In terms of promotion, it is also necessary to carry out demonstration and promotion in combination with farmers' technical acceptance and investment level, and use digital agricultural platforms to realize rotation model simulation and prediction, so as to improve the intelligence and precision of rotation mode. 8 Summary and Outlook As an important economic vegetable, Solanaceae crops occupy a core position in China's agricultural production system. However, the high incidence of soil-borne diseases caused by the continuous cropping system, especially wilt and bacterial wilt, has severely restricted the improvement of yield and quality, and has become a major obstacle to the development of green agriculture. This article systematically sorted out the types and transmission mechanisms of common Solanaceae diseases, and explained that non-host plants form multi-dimensional interference with pathogens through niche competition, root secretion regulation, and microbial community reconstruction, effectively blocking their life cycle.

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