Journal
TOXINS
Volume 15, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/toxins15030224
Keywords
Aculeata; venom; sociality; proteomics; cytotoxicity
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Aculeate hymenopterans use venom for different purposes based on social behavior, with solitary species using it to paralyze prey and social species using it for colony defense. This study found that venom compositions and activities vary among species, with social species having higher presence of peptides causing damage and pain.
Aculeate hymenopterans use their venom for a variety of different purposes. The venom of solitary aculeates paralyze and preserve prey without killing it, whereas social aculeates utilize their venom in defence of their colony. These distinct applications of venom suggest that its components and their functions are also likely to differ. This study investigates a range of solitary and social species across Aculeata. We combined electrophoretic, mass spectrometric, and transcriptomic techniques to characterize the compositions of venoms from an incredibly diverse taxon. In addition, in vitro assays shed light on their biological activities. Although there were many common components identified in the venoms of species with different social behavior, there were also significant variations in the presence and activity of enzymes such as phospholipase A(2)s and serine proteases and the cytotoxicity of the venoms. Social aculeate venom showed higher presence of peptides that cause damage and pain in victims. The venom-gland transcriptome from the European honeybee (Apis mellifera) contained highly conserved toxins which match those identified by previous investigations. In contrast, venoms from less-studied taxa returned limited results from our proteomic databases, suggesting that they contain unique toxins.
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