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Insect population control using pesticides faces new challenges as global temperatures change. Symbiotic bacteria of insects play a key role in insect resistance to pesticides, and these symbiotic bacteria themselves are sensitive to the effects of temperature changes. , a sucking pest, survives in a wide range of temperatures (15°C-35°C), and is presently controlled predominantly using the pesticide imidacloprid. Here, we investigated the effects of temperature and imidacloprid on microbial population composition using 16S rRNA sequencing. We found that the application of imidacloprid in high-temperature environments led to an increase in the species diversity of bacteria in the body of High temperatures may disrupt the symbiotic relationship between certain bacteria and , such as . High temperatures led to a decrease in the abundance of . , , and were very sensitive to temperature and were strongly affected by temperature changes. Microorganisms that were greatly affected by the concentration of imidacloprid in the community include and . The aim of this study is to reveal the dynamics and diversity of symbiotic bacteria of treated with imidacloprid at a range of temperatures. These results provide insight into new strategies for pest control in a changing climate.
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http://dx.doi.org/10.3389/fmicb.2024.1485708 | DOI Listing |
Commun Biol
September 2025
Department of General and Applied Biology, São Paulo State University (UNESP), Institute of Bioscience, Rio Claro, SP, Brazil.
Symbiotic relationships shape the evolution of organisms. Fungi in the genus Escovopsis share an evolutionary history with the fungus-growing "attine" ant system and are only found in association with these social insects. Despite this close relationship, there are key aspects of Escovopsis evolution that remain poorly understood.
View Article and Find Full Text PDFJ Agric Food Chem
September 2025
State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Provincial Key Laboratory of Microbial Molecular Biology, College of Life Science, Hunan Normal University, Changsha 410081, China.
Entomopathogenic nematode symbiotic bacteria (EPNB) enhance nematode insecticidal capacity through symbiosis. This study cloned the complete 32-kb type III secretion system (T3SS) gene cluster from TT01 using Red/ET recombineering and functionally expressed it in T3SS-deficient HN_xs01. Heterologous T3SS expression significantly enhanced HN_xs01 adhesion and invasion capabilities in CF-203 cells.
View Article and Find Full Text PDFMycorrhiza
September 2025
Department of Microbiology, College of Resources, Sichuan Agricultural University, Chengdu, 611130, China.
Ectomycorrhizal fungi (EMF) colonize roots to establish symbiotic associations with plants. Sporocarps of the EMF Tuber spp. are considered as a delicacy in numerous countries and is a kind of EMF of great economic and social importance.
View Article and Find Full Text PDFiScience
September 2025
Instituto de Biología Molecular y Celular de Plantas, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, 46022 Valencia, Spain.
Arbuscular mycorrhizal fungi (AMF) play a crucial role in disease control by establishing symbiotic relationships with plant roots. AMF improve salinity tolerance in plants by regulating the Na/K ratio through selective ion transport and mediate osmotic regulation by inducing the accumulation of osmotic-compatible solutes such as glycine betaine and proline to enable plant cells to maintain water content and the metabolic balance. AMF can also activate antioxidant defense responses by stimulating enzymes that protect plant cells from harmful oxidation and pathological infections.
View Article and Find Full Text PDFCurr Biol
September 2025
Queensland Alliance for Agriculture and Food Innovation, University of Queensland, St Lucia, QLD, Australia.
A new study shows that sucrose allocation within soybean roots by the sucrose transporter GmSWEET3c promotes rhizobial infection, nodulation, and symbiotic nitrogen fixation.
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