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How does adulteration of wax foundation affect phenoloxidase and lysozyme activities as selected parameters of immunity in Apis mellifera? [PDF]
Journal of Veterinary ResearchThe adulteration of wax foundation is, for many reasons, a growing problem of modern beekeeping not only in Europe but also around the world. Wax foundation contaminated with stearin addition leads to a brood die-off, while paraffin addition negatively ...
Strachecka Aneta +5 more
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Veterinary Sciences, 2021 β-glucans can activate the animal innate immune system by acting as immune-modulators and inducing various stimulatory effects. The aim of this study was to investigate the effect of 1,3-1,6 β-glucans administered orally for 96 h on Apis mellifera ...
Simona Sagona +9 more
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Immune properties of invertebrate phenoloxidases
Developmental & Comparative Immunology, 2021 Melanin production from different types of phenoloxidases (POs) confers immunity from a variety of pathogens ranging from viruses and microorganisms to parasites. The arthropod proPO expresses a variety of activities including cytokine, opsonin and microbiocidal activities independent of and even without melanin production.
Lage Cerenius, Kenneth Söderhäll
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Tarantula Hemocyanin Shows Phenoloxidase Activity [PDF]
Journal of Biological Chemistry, 1998 An enzyme generally catalyzes one well defined reaction with high specificity and efficiency. We report here in contrast that the copper protein hemocyanin of the tarantula Eurypelma californicum exhibits two different functions. These occur at the same active site.
H, Decker, T, Rimke
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Genetics of a Drosophila phenoloxidase [PDF]
Molecular and General Genetics MGG, 1985 An electrophoretic mobility variant of phenoloxidase in a lz stock of Drosophila melanogaster was identified as the A3 component of the phenoloxidase complex by using two different activators to study enzyme activity-natural activator isolated from pupae and 50% 2-propanol.
Rizki, Tahir M. +2 more
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Effects of known phenoloxidase inhibitors on hemocyanin-derived phenoloxidase from Limulus polyphemus [PDF]
Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology, 2012 Inhibitors of phenoloxidase are used routinely to characterise the structural and functional properties of phenoloxidases. Hemocyanin-derived phenoloxidase activity is also sensitive to standard phenoloxidase inhibitors. In this study, we characterise the effects of a number of phenoloxidase inhibitors on hemocyanin-derived phenoloxidase activity from ...
Wright, Jamie +5 more
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Journal of Innate Immunity, 2023 Insect humoral immune responses are regulated in part by protease cascades, whose components circulate as zymogens in the hemolymph. In mosquitoes, these cascades consist of clip-domain serine proteases (cSPs) and/or their non-catalytic homologs, which ...
Xiufeng Zhang +12 more
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A High Soldier Proportion Encouraged the Greater Antifungal Immunity in a Subterranean Termite
Frontiers in Physiology, 2022 Termites possess a mighty social immune system, serving as one of the key obstacles to controlling them biologically. However, the dynamic mechanism coordinating the social immunologic defense and caste distribution of the termites remains elusive.
Wenhui Zeng +5 more
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Frontiers in Immunology, 2022 The gut microenvironment of houseflies provides unique conditions for microbial colonization. Some gut microorganisms provide benefits for the development of the host by regulating the interaction between the host and intestinal pathogens.
Qian Zhang +7 more
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BMC Research Notes, 2019 Objective Hemolymph plays many important roles in the physiology of an insect throughout its lifetime; however, for small-bodied insects, studies are lacking because of the difficulties encountered while collecting hemolymph.
Hiroko Tabunoki +3 more
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