Correlation of microbiomes in “plant-insect-soil” ecosystem

Abstract

IntroductionTraditional chemical control methods pose a damaging effect on farmland ecology, and their long-term use has led to the development of pest resistance.MethodsHere, we analyzed the correlations and differences in the microbiome present in the plant and soil of sugarcane cultivars exhibiting different insect resistance to investigate the role played by microbiome in crop insect resistance. We evaluated the microbiome of stems, topsoil, rhizosphere soil, and striped borers obtained from infested stems, as well as soil chemical parameters.Results and DiscussionResults showed that microbiome diversity was higher in stems of insect-resistant plants, and contrast, lower in the soil of resistant plants, with fungi being more pronounced than bacteria. The microbiome in plant stems was almost entirely derived from the soil. The microbiome of insect-susceptible plants and surrounding soil tended to change towards that of insect-resistant plants after insect damage. Insects’ microbiome was mainly derived from plant stems and partly from the soil. Available potassium showed an extremely significant correlation with soil microbiome. This study validated the role played by the microbiome ecology of plant–soil-insect system in insect resistance and provided a pre-theoretical basis for crop resistance control.

Foliar Applied ZnO Quantum Dots Boost Pumpkin (Cucurbita moschata Duch.) Growth and Positively Alter Endophytic and Rhizosphere Microbial Communities

“…In addition, Poaceascoma (RA: 9.52%) and Zopfiella (RA: 3.18%) were the differentially enriched rhizosphere fungi at the genus level in the ZnO QD treatment (Figures J and S18). Poaceascoma , belonging to Ascomycetes , was found in insect-resistant and insect-susceptible sugarcane, but not in healthy plants, indicating that it may play an important role in plant resistance to insects Pseudomonas syringae .…”

“…Poaceascoma, belonging to Ascomycetes, was found in insect-resistant and insect-susceptible sugarcane, but not in healthy plants, indicating that it may play an important role in plant resistance to insects. 77 Zopfiella can produce secondary metabolites that exhibit antibacterial activity against plant pathogens such as Pseudomonas syringae. 78 The overall findings suggest that foliar application of ZnO QDs altered the rhizosphere fungal community, which may contribute to the enrichment of beneficial fungi, thereby promoting plant growth.…”

6Pgdh polymorphism in wild bulb mite populations: prevalence, environmental correlates and life history trade-offs

“…Our results suggest that soil properties can differentially affect mite fitness at the intra-species level too. The effects of soil could be mediated by factors like vegetation or soil microbial community composition (Li et al 2023 ; Pineda et al 2017 ). For example, host-microbiome interactions in bulb mites affect nutrition (Zindel et al 2013 ), which in turn impacts fitness and traits like development rate and body size (Leigh and Smallegange 2014 ).…”

6Pgdh polymorphism in wild bulb mite populations - prevalence, environmental correlates and life history trade-offs

“…Our results suggest that soil properties can differentially affect mite tness at the intra-species level too. The effects of soil could be mediated by factors like vegetation or soil microbial community composition (Li et al 2023, Pineda et al 2017. For example, host-microbiome interactions in bulb mites affect nutrition (Zindel et al 2013), which in turn impacts tness and traits like development rate and body size (Leigh & Smallegange 2014).…”