Results 171 to 180 of about 13,843 (210)
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Fire Ants Feed Their Nestmates with Their Own Venom
SSRN Electronic Journal, 2022Venom secretion is widely used by ants for disease control and more generally as an external surface disinfectant. Here we report evidence that Solenopsis invicta feed their nestmates with their own venom. Venom alkaloids were found in crops and midguts of ants at concentration levels that have previously been reported as effective against various ...
Jian, Chen, Yuzhe, Du
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Venom and Venom Apparatus of the Bull Ant, Myrmecia gulosa (Fabr.)
Science, 1964The venom of Myrmecia gulosa (Myrmeciinae, Formicidae) is of a proteinaceous type and is separated by electrophoresis into eight components. The venom contains histamine, a hyaluronidase, and a direct hemolytic factor. It also shows kinin-like activity.
G W, CAVILL +2 more
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The chemistry of fire ant venom
Tetrahedron, 1971Abstract Five alkaloids, three trans-2-methyl-6-alkylpiperidines, and two unsaturated analogues, have been identified in the venom of the red form of the fire ant, Solenopsis saevissima. The compounds are represented by the structural formulae I–V. Each has been prepared synthetically.
J.G. MacConnell, M.S. Blum, H.M. Fales
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Biochemical evolution in fire ant venoms
Insect Biochemistry, 1973Abstract The distribution of 2,6-dialkyl(and alkenyl-)piperidine alkaloids in the venom of fire ant workers of Solenopsis xyloni, S. geminata, S. richteri , and S. invicta has been compared with the occurrence of these compounds in the venom of alate queens of the same species. Whereas the venoms of workers of S. invicta and S.
J.M. Brand, M.S. Blum, H.H. Ross
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Neurotoxic kinins from wasp and ant venoms
Toxicon, 1991Kinins are polypeptides of 9-18 amino-acid residues containing a bradykinin-like sequence, in some cases as part of a molecule. The bradykinin-like sequence is either bradykinin, Hyp3-bradykinin or Thr6-bradykinin. Kinins are neurotoxic components of wasp and ant venoms, causing in the insect CNS a presynaptic block of the cholinergic transmission by ...
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Fire ant venoms: Comparative analyses of alkaloidal components
Toxicon, 1972Abstract The chemistry of the venom alkaloids of Solenopsis geminata, S. xyloni and the red and black forms of S. saevissima was investigated. All four forms have a venom composition characterized by the presence of various 2,6-disubstituted piperidines in amounts distinctive of the form. The alkaloids of the red and black forms mainly contain an
J M, Brand +3 more
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2020
The present invention deals with isolated venom peptide precursors comprising a prepropeptide sequence selected from the group consisting of SEQ ID No. 1, SEQ ID No. 2, SEQ ID No. 3, SEQ ID No. 4, SEQ ID No. 95 or SEQ ID No. 96 and a mature peptide.
Treilhou, Michel +3 more
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The present invention deals with isolated venom peptide precursors comprising a prepropeptide sequence selected from the group consisting of SEQ ID No. 1, SEQ ID No. 2, SEQ ID No. 3, SEQ ID No. 4, SEQ ID No. 95 or SEQ ID No. 96 and a mature peptide.
Treilhou, Michel +3 more
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Protein components of fire ant venom (Solenopsis invicta)
Toxicon, 1979Abstract H. Baer , T.-Y. Liu , M. C. Anderson , M. Blum , W. H. Schmid and F. J. James . Protein components of fire ant venom ( Solenopsis invicta ), Toxicon 17, 397–405, 1979.—Venom of the fire ant ( Solenopsis invicta ), long thought to contain only alkaloids, is shown to contain proteins, which undoubtedly accounts for the induction of ...
H, Baer +5 more
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Ant Venoms: A Study of Venom Diversity
1978Ant venoms appear to represent an almost untapped reservoir of information capable of adding several exciting chapters to the story of toxinology. Ants share with some bees and wasps the distinction of being the only truly social group of venomous animals. This fact implies that most of the venomous individuals belong to an essentially sterile class of
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Chemistry of venom alkaloids in the ant genusMegalomyrmex
Journal of Chemical Ecology, 1991Chemical analyses of three species in the Neotropical ant genusMegalomyrmex have identified this taxon as the third myrmicine genus to produce alkaloids as major venom products. Workers ofM. leoninus and workers and ergatoids ofM. goeldii produce one or more of fourtrans-2,5-dialkylpyrrolidines previously identified in other myrmicine genera.M ...
T H, Jones +4 more
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