Land-Use Type Drives Soil Population Structures of the Entomopathogenic Fungal Genus Metarhizium

• DOI: 10.3390/microorganisms9071380
• Publication Date: 2021-06-25T15:07:40Z
• Authors: María Fernández-B...; Florian Gschwend; Johanna Mayerhofer; Anna Hug; Franco Widmer; Jürg Enkerli
• Keywords: Metarhizium; Entomopathogenic fungus

Species of the fungal genus Metarhizium are globally distributed pathogens arthropods, and a number biological control products based on these fungi have been commercialized to variety pest arthropods. In this study, we investigate abundance population structure spp. in three land-use types—arable land, grassland, forest—to provide detailed information habitat selection factors that drive occurrence soil. At 10 sites each type, which all part Swiss national soil-monitoring network (NABO), were present at 8, 10, 4 sites, respectively. On average, most abundant followed by forest then arable land; 349 isolates collected from 30 sequence analyses nuclear translation elongation factor 1α gene, as well microsatellite-based genotyping, revealed presence 13 brunneum, 6 robertsii, 3 guizhouense multilocus genotypes (MLGs). With 259 isolates, M. brunneum was species, significant differences detected structures between forested unforested sites. Among 15 environmental assessed, C:N ratio, basal respiration, total carbon, organic bulk density significantly explained variation among populations. The gained study will support best-adapted agents additional criteria for adaptation or development new strategies.