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Multiplicity of type 6 secretion system toxins limits the evolution of resistance.
Proc Natl Acad Sci U S A
January 2025
Division of Evolution, Infection and Genomics, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9NT, United Kingdom.
The bacterial type 6 secretion system (T6SS) is a toxin-injecting nanoweapon that mediates competition in plant- and animal-associated microbial communities. Bacteria can evolve de novo resistance against T6SS attacks, but resistance is far from universal in natural communities, suggesting key features of T6SS weaponry may act to limit its evolution. Here, we combine ecoevolutionary modeling and experimental evolution to examine how toxin type and multiplicity in attackers shape resistance evolution in susceptible competitors.
View Article and Find Full Text PDFPlain language summary of the SHAMAL study in patients with severe eosinophilic asthma treated with benralizumab.
Immunotherapy
January 2025
kThoraxklinik Heidelberg, Heidelberg, Germany; lIKF Pneumologie, Mainz, Germany.
Vapour heat as a potential means of controlling insects in stored dates.
Bull Entomol Res
January 2025
Department of Date Palm Pests and Diseases, Central Laboratory for Date Palm, Agricultural Research Centre (ARC), Giza, Egypt.
Post-harvest treatments are very critical in accepting the exported dates. However, stored dates are attacked by a wide range of stored pests causing serious damage to yield. Therefore, this study investigated the efficacy of treating stored dates variety Siwi with vapour heat on almond moth (Walker), the Indian meal moth (Hübner), the saw-toothed grain beetle Linnaeus, the red flour beetle (Herbst), and the drugstore beetle (L.
View Article and Find Full Text PDFAntimicrobial Activity of Nano-GeO/CTAB Complex Against Fungi and Bacteria Isolated from Paper.
Int J Mol Sci
December 2024
State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun 130062, China.
Microbial attack, particularly fungal degradation of cellulose, is a leading cause of paper damage. To address fungal spores and the rising concern of microbial drug resistance, a nano-Germanium dioxide (GeO)/cetyltrimethylammonium bromide (CTAB) complex (nano-GeO/CTAB complex) with potent antibacterial properties was synthesized. Its inhibitory effects were evaluated against bacteria, including Gram-positive and Gram-negative , as well as fungi isolated from paper ( spp.
View Article and Find Full Text PDFNanoencapsulated Essential Oils for Post-Harvest Preservation of Stored Cereals: A Review.
Foods
December 2024
Laboratory of Herbal Pesticides, Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
Cereal grains are frequently attacked by microorganisms and insects during storage and processing, which negatively affects their quality, safety, and market value. Therefore, protecting stored grains from microbial contamination is crucial for food industries, farmers, public health associations, and environmental agencies. Due to the negative impact of synthetic gray chemicals, antimicrobial plant-based essential oils (EOs) can serve as alternative, safer, environmentally friendly preservatives that can prolong the shelf life of cereals.
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