Microorganisms Associated with the Ambrosial Beetle Xyleborus affinis with Plant Growth-Promotion Activity in Arabidopsis Seedlings and Antifungal Activity Against Phytopathogenic Fungus Fusarium sp. INECOL_BM-06

• Published in: Microbial ecology 2023-05, Vol.85 (4), p.1396-1411
• Main Authors: Castillo-Esparza, J. Francisco, Mora-Velasco, Karen A., Rosas-Saito, Greta H., Rodríguez-Haas, Benjamín, Sánchez-Rangel, Diana, Ibarra-Juárez, Luis A., Ortiz-Castro, Randy
• Format: Article
• Language: English
• Subjects: Animals; Antifungal activity; Antifungal Agents - metabolism; Arabidopsis; Arabidopsis - microbiology; Auxins; Beetles; Bioactive compounds; Biological control; Biomedical and Life Sciences; Coleoptera; Computer architecture; Ecology; Forestry; Fungi; Fungicides; Fusarium; Geoecology/Natural Processes; Insecta; Insects; Jasmonic acid; Life cycle; Life cycles; Life Sciences; Microbial Ecology; Microbiology; Microorganisms; Nature Conservation; Pathogens; Phytopathogenic fungi; Plant Diseases - microbiology; Plant growth; Plant Microbe Interactions; Plant species; Plants; Plants (botany); Salicylic acid; Seedlings; Seedlings - microbiology; Signal transduction; Signaling; Water Quality/Water Pollution; Weevils - microbiology; Xyleborus affinis
• ISSN: 0095-3628; 1432-184X
• DOI: 10.1007/s00248-022-01998-7

Plants interact with a great diversity of microorganisms or insects throughout their life cycle in the environment. Plant and insect interactions are common; besides, a great variety of microorganisms associated with insects can induce pathogenic damage in the host, as mutualist phytopathogenic fungus. However, there are other microorganisms present in the insect-fungal association, whose biological/ecological activities and functions during plant interaction are unknown. In the present work evaluated, the role of microorganisms associated with Xyleborus affinis , an important beetle species within the Xyleborini tribe, is characterized by attacking many plant species, some of which are of agricultural and forestry importance. We isolated six strains of microorganisms associated with X. affinis shown as plant growth-promoting activity and altered the root system architecture independent of auxin-signaling pathway in Arabidopsis seedlings and antifungal activity against the phytopathogenic fungus Fusarium sp. INECOL_BM-06. In addition, evaluating the tripartite interaction plant-microorganism-fungus, interestingly, we found that microorganisms can induce protection against the phytopathogenic fungus Fusarium sp. INECOL_BM-06 involving the jasmonic acid-signaling pathway and independent of salicylic acid-signaling pathway. Our results showed the important role of this microorganisms during the plant- and insect-microorganism interactions, and the biological potential use of these microorganisms as novel agents of biological control in the crops of agricultural and forestry is important.