Changes in Toxin Quantities Following Experimental Manipulation of Toxin Reserves in Bufo bufo Tadpoles
| Autor: | Attila Hettyey, Anikó Kurali, Zoltán Tóth, Ágnes M. Móricz |
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| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
medicine.medical_specialty Chemical defence Bufadienolide Toad medicine.disease_cause 01 natural sciences Biochemistry Article Bufo bufo chemistry.chemical_compound Mild stress Internal medicine biology.animal medicine Animals Bufo Ecology Evolution Behavior and Systematics Toxins Biological biology Toxin Stress response General Medicine biology.organism_classification Bufadienolides Bufanolides 010602 entomology Toxin production Endocrinology chemistry Larva Toxicity Predator attack Hormonal treatment Tadpoles After treatment 010606 plant biology & botany |
| Zdroj: | Journal of Chemical Ecology |
| ISSN: | 1573-1561 0098-0331 |
| DOI: | 10.1007/s10886-019-01045-9 |
| Popis: | Possessing toxins can contribute to an efficient defence against various threats in nature. However, we generally know little about the energy- and time-demands of developing toxicity in animals, which determines the efficiency of chemical defence and its trade-off with other risk-induced phenotypic responses. In this study we examined how immersion into norepinephrine solution inducing the release of stored toxins, administration of mild stress mimicking predator attack or simple handling during experimental procedure affected the quantity and number of toxin compounds present in common toad (Bufo bufo) tadpoles as compared to undisturbed control individuals, and investigated how fast toxin reserves were restored. We found that total bufadienolide quantity (TBQ) significantly decreased only in the norepinephrine treatment group immediately after treatment compared to the control, but this difference disappeared after 12 h; there were no consistent differences in TBQ between treatments at later samplings. Interestingly, in the norepinephrine treatment approximately half of the compounds characterized by >700 m/z values showed the same changes in time as TBQ, but several bufadienolides characterized by |
| Databáze: | OpenAIRE |
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