Results 231 to 240 of about 886,102 (271)
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Temperature Stress and Insect Immunity
Journal of Thermal Biology, 2017This mini-review summarizes the recent knowledge concerning the role of temperature in the immune response of insects. The heat-shock is described as a common phenomenon in both homotherms and poikilotherms, and the role of heat-shock proteins in innate immunity is recalled taking into account its evolutionary aspects.
Iwona Wojda
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Depression of immune reactions in insects
Research in Immunology, 199016 ref.
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Innate immunity in higher insects
Current Opinion in Immunology, 1996The hallmark of the innate immune response of higher insects is the rapid and transient synthesis of a battery of broad spectrum antimicrobial peptides by the fat body. The control of the genes encoding these peptides involves cis-regulatory promoter elements homologous to sequences functional in mammalian acute-phase genes.
Hoffmann, Jules A. +2 more
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Insect hemocytes and their role in immunity
Insect Biochemistry and Molecular Biology, 2002The innate immune system of insects is divided into humoral and cellular defense responses. Humoral defenses include antimicrobial peptides, the cascades that regulate coagulation and melanization of hemolymph, and the production of reactive intermediates of oxygen and nitrogen.
M D, Lavine, M R, Strand
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1993
We are using the diptericin gene as a model system to study the control of expression of the genes encoding antibacterial peptides during the Drosophila immune reaction. In order to investigate the putative regulatory regions in the diptericin promoter, we performed DNaseI footprinting experiments combined with gel-shift assays in two inducible systems:
Georgel, Philippe +5 more
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We are using the diptericin gene as a model system to study the control of expression of the genes encoding antibacterial peptides during the Drosophila immune reaction. In order to investigate the putative regulatory regions in the diptericin promoter, we performed DNaseI footprinting experiments combined with gel-shift assays in two inducible systems:
Georgel, Philippe +5 more
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Plant Immunity to Insect Herbivores
Annual Review of Plant Biology, 2008Herbivorous insects use diverse feeding strategies to obtain nutrients from their host plants. Rather than acting as passive victims in these interactions, plants respond to herbivory with the production of toxins and defensive proteins that target physiological processes in the insect.
Gregg A Howe, Georg Jander
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Eicosanoid-mediated immunity in insects
Developmental & Comparative Immunology, 2018Eicosanoid is a collective term for oxygenated metabolites of C20 polyunsaturated fatty acids. As seen in mammals, eicosanoids play crucial roles in mediating various physiological processes, including immune responses, in insects. Upon microbial pathogen infection, non-self recognition signals are propagated to nearly immune effectors such as ...
Yonggyun, Kim +3 more
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Insect Immunity to Entomopathogenic Fungi
Advances in Genetics, 2016The study of infection and immunity in insects has achieved considerable prominence with the appreciation that their host defense mechanisms share many fundamental characteristics with the innate immune system of vertebrates. Studies on the highly tractable model organism Drosophila in particular have led to a detailed understanding of conserved innate
H-L, Lu, R J, St Leger
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BIOLOGICAL MEDIATORS OF INSECT IMMUNITY
Annual Review of Entomology, 1997▪ Abstract Infection in insects stimulates a complex defensive response. Recognition of pathogens may be accomplished by plasma or hemocyte proteins that bind specifically to bacterial or fungal polysaccharides. Several morphologically distinct hemocyte cell types cooperate in the immune response.
J P, Gillespie, M R, Kanost, T, Trenczek
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Insect immune resistance to parasitoids
Insect Science, 2008AbstractInsect host—parasitoid interactions involve complex physiological, biochemical and genetic interactions. Against endoparasitoids, immune‐competent hosts initiate a blood cell‐mediated response that quickly destroys the intruders and envelops them in a multilayered melanotic capsule. During the past decade, considerable progress has been made in
Carton, Yves +2 more
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