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Melanophryniscus

Moreover, it is known that toads belonging to the genus Melanophryniscus contain toxic alkaloids in their skin °°. From Melanophryniscus montevidensis, alkaloids of the pumiliotoxin (PTX) group and indolizidines were isolated. [Pg.58]

Mebs, D., Pogoda, W., Maneyro, R. and Kwet, A. 2005. Studies on the poisonous skin secretion of individual red bellied toads, Melanophryniscus montevidensis (Anura, Bufonidae), from Uruguay. Toxicon, 46 641-650. [Pg.249]

The apparent occurrence of decahydroquinolines as major alkaloids in dendrobatid frogs of the genera Dendrobates, Epipedobates, and Phyllobates, and in bufonid toads of the genus Melanophryniscus, strongly suggests the independent evolutionary development of biosynthetic pathways to decahydroquinolines in two separate amphibian lineages. [Pg.212]

Fig. 7. Structures of allopumiliotoxins. Absolute configurations are known for 267A, 339A, and 339B and are assumed to be the same for the others. All occur in dendrobatid frogs. Some also occur in ranid (Mantella), bufonid (Melanophryniscus), and myobatrachid (Pseudophryne) amphibians (73,73,8))-... Fig. 7. Structures of allopumiliotoxins. Absolute configurations are known for 267A, 339A, and 339B and are assumed to be the same for the others. All occur in dendrobatid frogs. Some also occur in ranid (Mantella), bufonid (Melanophryniscus), and myobatrachid (Pseudophryne) amphibians (73,73,8))-...
Fig. 9. Structures of homopumiliotoxins from dendrobatid frogs and bufonid toads. The structure of homopumiliotoxin 223G is based on nuclear magnetic resonance spectral analysis (77). The absolute configuration is unknown. Homopumiliotoxin 223G occurs in dendrobatids (77), ranids (73), and bufonids (8 ), while the other alkaloids have been detected only in the bufonid toads (Melanophryniscus) (81). Fig. 9. Structures of homopumiliotoxins from dendrobatid frogs and bufonid toads. The structure of homopumiliotoxin 223G is based on nuclear magnetic resonance spectral analysis (77). The absolute configuration is unknown. Homopumiliotoxin 223G occurs in dendrobatids (77), ranids (73), and bufonids (8 ), while the other alkaloids have been detected only in the bufonid toads (Melanophryniscus) (81).
Daly JV, Wilham JM, Spande TF, Garaffo HM, Gil RR, Silva GL, et al. Alkaloids in bufonid toads (Melanophryniscus) temporal and geographic determinants for two Argentinian species. J Chem Ecol 2007 33(4) 871-87. [Pg.335]

Grant T, Colombo P, Verrastro L, Saporito RA. The occurrence of defensive alkaloids in non-integumentary tissues of the Brazilian red-belly toad Melanophryniscus simplex (Bufonidae). Chemoecology 2012 22(3) 169-78. [Pg.336]

Hantak MM, Grant T, Reinsch S, Mcginnity D, Loring M, ToyookaN, et al. Dietary Alkaloid Sequestration in a poison frog and experimental test of alkaloid uptake in Melanophryniscus stelzneri (Bufonidae). J Chem Ecol 2013 39(ll-12) 1400-6. [Pg.337]

Figure 43 Alkaloids from bufonid toads of the genus Melanophryniscus pumiliotoxin 265D (1734) pumiliotoxin 309A (1735) pumiliotoxin 307G (1736) putative structure for alkaloid 207S (1737) quinolizidine 2751 (1738) alkaloid 249F (1739) indolizidine 223D (1740). Figure 43 Alkaloids from bufonid toads of the genus Melanophryniscus pumiliotoxin 265D (1734) pumiliotoxin 309A (1735) pumiliotoxin 307G (1736) putative structure for alkaloid 207S (1737) quinolizidine 2751 (1738) alkaloid 249F (1739) indolizidine 223D (1740).
See other pages where Melanophryniscus is mentioned: [Pg.28]    [Pg.29]    [Pg.36]    [Pg.212]    [Pg.224]    [Pg.224]    [Pg.229]    [Pg.232]    [Pg.238]    [Pg.241]    [Pg.247]    [Pg.267]    [Pg.280]    [Pg.165]    [Pg.24]    [Pg.77]    [Pg.354]    [Pg.560]    [Pg.165]    [Pg.289]    [Pg.317]    [Pg.319]    [Pg.322]    [Pg.323]    [Pg.324]    [Pg.324]   
See also in sourсe #XX -- [ Pg.58 ]

See also in sourсe #XX -- [ Pg.71 ]

See also in sourсe #XX -- [ Pg.560 ]



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Melanophryniscus montevidensis

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