Search Results - "Garraffo, H M"

Alkaloids in Bufonid Toads (Melanophryniscus): Temporal and Geographic Determinants for Two Argentinian Species by Daly, J. W, Wilham, J. M, Spande, T. F, Garraffo, H. M, Gil, R. R, Silva, G. L, Vaira, M

“…Bufonid toads of the genus Melanophryniscus represent one of several lineages of anurans with the ability to sequester alkaloids from dietary arthropods for…”
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Evidence for Biosynthesis of Pseudophrynamine Alkaloids by an Australian Myobatrachid Frog (Pseudophryne) and for Sequestration of Dietary Pumiliotoxins by Smith, B. P, Tyler, M. J, Kaneko, T, Garraffo, H. M, Spande, T. F, Daly, J. W

“…Australian myobatrachid frogs of the genus Pseudophryne have only two classes of alkaloids in skin extracts, pseudophrynamines (PSs) and pumiliotoxins (PTXs)…”
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A siphonotid millipede (Rhinotus) as the source of spiropyrrolizidine oximes of dendrobatid frogs by SAPORITO, R. A, DONNELLY, M. A, HOFFMAN, R. L, GARRAFFO, H. M, DALY, J. W

“…Poison frogs of the neotropical family Dendrobatidae contain a wide variety of lipophilic alkaloids, which are accumulated from alkaloid-containing arthropods…”
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Alkaloids from Amphibian Skin:  A Tabulation of Over Eight-Hundred Compounds by Daly, John W, Spande, Thomas F, Garraffo, H. Martin

“…A diverse array of biologically active, lipid-soluble alkaloids have been discovered in amphibian skin. Such alkaloids include the following:  the steroidal…”
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Production of the macrocyclic bis-bibenzyls in axenically farmed and wild liverwort Marchantia polymorpha L. subsp. ruderalis Bischl. et Boisselier by Sabovljević, M. S., Vujičić, M., Wang, X., Garraffo, H. M., Bewley, C. A., Sabovljević, A.

“…Over 60 macrocyclic bis-bibenzyls have been isolated from hepatics. They possess various biological activities such as antimicrobial, antifungal, muscle…”
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Arthropod-frog connection : Decahydroquinoline and pyrrolizidine alkaloids common to microsympatric myrmicine ants and dendrobatid frogs by DALY, J. W, GARRAFFO, H. M, JAIN, P, SPANDE, T. F, SNELLING, R. R, JARAMILLO, C, RAND, A. S

“…Neotropical poison frogs (Dendrobatidae) contain a wide variety of lipophilic alkaloids, apparently accumulated unchanged into skin glands from dietary…”
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Further alkaloids common to ants and frogs: decahydroquinolines and a quinolizidine by Jones, T.H, Gorman, J.S.T, Snelling, R.R, Delabie, J.H.C, Blum, M.S, Garraffo, H.M, Jain, P, Daly, J.W, Spande, T.F

“…Three alkaloids--two minor decahydroquinolines (DHQs) and a major quinolizidine--were detected in an extract of a Brazilian myrmicine ant (Solenopsis…”
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Synthesis and nicotinic activity of epiboxidine: an isoxazole analogue of epibatidine by Badio, Barbara, Garraffo, H.Martin, Plummer, Carlton V, Padgett, William L, Daly, John W

“…Synthetic (±)-epiboxidine (exo-2-(3-methyl-5-isoxazolyl)-7-azabicyclo[2.2.1]heptane) is a methylisoxazole analog of the alkaloid epibatidine, itself a potent…”
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Alkaloids from Bufonid Toads (Melanophryniscus): Decahydroquinolines, Pumiliotoxins and Homopumiliotoxins, Indolizidines, Pyrrolizidines, and Quinolizidines by Garraffo, H. M, Spande, T. F, Daly, J. W, Baldessari, A, Gros, E. G

“…Skins of bufonid toads of the genus Melanophryniscus contain several classes of alkaloids: decahydroquinolines, pumiliotoxins, allopumiliotoxins,…”
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Alkaloids in Madagascan Frogs (Mantella): Pumiliotoxins, Indolizidines, Quinolizidines, and Pyrrolizidines by Garraffo, H. M, Caceres, J, Daly, J. W, Spande, T. F, Andriamaharavo, N. R, Andriantsiferana, M

“…Brightly colored ranid frogs of the genus Mantella are found only in rain forests of Madagascar. Gc-ms and gc-Ft-ir analyses of skin alkaloids of seven…”
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Homobatrachotoxin in the Genus Pitohui: Chemical Defense in Birds? by Dumbacher, John P., Beehler, Bruce M., Spande, Thomas F., Garraffo, H. Martin, Daly, John W.

“…Three passerine species in the genus Pitohui, endemic to the New Guinea subregion, contain the steroidal alkaloid homobatrachotoxin, apparently as a chemical…”
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Alkaloid 223A:  The First Trisubstituted Indolizidine from Dendrobatid Frogs by Garraffo, H. M, Jain, P, Spande, T. F, Daly, J. W

“…The structure of alkaloid 223A (1), the first member of a new class of amphibian alkaloids, purified by HPLC from a skin extract of a Panamanian population of…”
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Formicine ants: An arthropod source for the pumiliotoxin alkaloids of dendrobatid poison frogs by Saporito, R.A, Garraffo, H.M, Donnelly, M.A, Edwards, A.L, Longino, J.T, Daly, J.W

“…A remarkable diversity of bioactive lipophilic alkaloids is present in the skin of poison frogs and toads worldwide. Originally discovered in neotropical…”
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Chemistry of venom alkaloids in some Solenopsis (Diplorhoptrum) species from Puerto Rico by Jones, T.H. (Virginia Military Institute, Lexington, VA.), Torres, J.A, Spande, T.F, Garraffo, H.M, Blum, M.S, Snelling, R.R

“…A number of 15-carbon alkaloids have been identified in venom extracts of four Puerto Rican species of ants in the genus Solenopsis (Diplorhoptrum). Workers of…”
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Absence of skin alkaloids in captive-raised Madagascan mantelline frogs ( Mantella) and sequestration of dietary alkaloids by Daly, John W., Martin Garraffo, H., Hall, Geoffrey S.E., Cover, John F.

“…J. W. Daly, H. M. Garraffo, G. S. E. Hall and J. F. Cover Jr. Absence of skin alkaloids in captive-raised Madagascan mantelline frogs ( Mantella) and…”
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3-Methyl-4-phenylpyrrole from the Ants Anochetus kempfi and Anochetus mayri by Jones, T. H, Flournoy, R. C, Torres, J. A, Snelling, R. R, Spande, T. F, Garraffo, H. M

“…The cephalic extracts of the ant Anochetus kempfi were found to contain 2,5-dimethyl-3-isoamylpyrazine (1) and 3-methyl-4-phenylpyrrole (2). The structures of…”
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Dietary source for skin alkaloids of poison frogs (Dendrobatidae)? by DALY, J. W, GARRAFFO, H. M, SPANDE, T. F, JARAMILLO, C, RAND, A. S

“…A wide range of alkaloids, many of which are unknown elsewhere in nature, occur in skin of frogs. Major classes of such alkaloids in dendrobatid frogs are the…”
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A New Subclass of Alkaloids from a Dendrobatid Poison Frog: A Structure for Deoxypumiliotoxin 251H by Jain, P, Garraffo, H. M, Spande, T. F, Yeh, H. J. C, Daly, J. W

“…Deoxypumiliotoxin 251H [4], representing a new subclass of the pumiliotoxin-A class of alkaloids, has been isolated from a dendrobatid frog, Epipedobates…”
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3-hexyl-5-methylindolizidine isomers from thief ants, Solenopsis (Diplorhoptrum) species by Gorman, J.S.T. (Virginia Military Institute, Lexington, VA.), Jones, T.H, Spande, T.F, Snelling, R.R, Torres, J.A, Garraffo, H.M

“…The venom alkaloids from the workers of nine collections of Solenopsis (Diplorhoptrum) from California contain either (5E,9E)-3-hexyl-5-methylindolizidine (1c)…”
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Bioactive Alkaloids of Frog Skin: Combinatorial Bioprospecting Reveals That Pumiliotoxins Have an Arthropod Source by Daly, John W., Kaneko, Tetsuo, Wilham, Jason, Garraffo, H. Martin, Spande, Thomas F., Espinosa, Alex, Donnelly, Maureen A.

“…Nearly 500 alkaloids have been detected in skin extracts from frogs of the family Dendrobatidae. All seem to have been sequestered unchanged into skin glands…”
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