Results 91 to 100 of about 2,772 (212)

Data from: Stepwise evolution of resistance to toxic cardenolides via genetic substitutions in the Na+/K+-ATPase of milkweed butterflies (Lepidoptera: Danaini)

open access: yes, 2013
Despite the monarch butterfly (Danaus plexippus) being famous for its adaptations to the defensive traits of its milkweed host plants, little is known about the macroevolution of these traits.
Boppré, Michael   +11 more
core   +1 more source

Antiproliferative Cardenolides from the Aerial Parts of Pergularia tomentosa

open access: yes, 2019
The LC-MS analysis of the MeOH extract of the aerial parts of Pergularia tomentosa led to the isolation of 23 compounds, of which the structures were elucidated unambiguously by NMR spectroscopic data analysis. Three new doubly linked cardenolides (4, 13,
Stefania Martucciello (177865)   +6 more
core   +1 more source

19-Nor- and 18,20-Epoxy-cardenolides from the Leaves of Calotropis gigantea

open access: yes, 2016
Two new cardenolides (1 and 2) along with 12 known compounds were isolated from the dichloromethane extract of the leaves of Calotropis gigantea. The structural elucidation was accomplished by spectroscopic methods.
Somyote Sutthivaiyakit (2188786)   +1 more
core   +1 more source

The chemistry of antipredator defense by secondary compounds in neotropical lepidoptera: facts, perspectives and caveats

open access: yesJournal of the Brazilian Chemical Society, 2000
Chemical defense against predation in butterflies and moths has been studied since nineteenth century. A classical example is that of the larvae of the monarch butterfly Danaus plexippus, which feed on leaves of Asclepias curassavica (Asclepiadaceae ...
Trigo José R.
doaj  

Improved method for diagnosis of Nerium oleander poisoning in necropsy tissues

open access: yesPesquisa Veterinária Brasileira
: Nerium oleander is an ornamental cardiotoxic plant found in tropical and subtropical areas of the World. Its toxicity is related to the content of cardioactive glycosides, mainly oleandrin, found throughout the plant.
Ana F.M. Botelho   +7 more
doaj   +1 more source

Cardenolide [PDF]

open access: yes, 2018
K. J. Lackner, D. Peetz
openaire   +1 more source

Addressing the Evolution of Cardenolide Formation in Iridoid-Synthesizing Plants: Site-Directed Mutagenesis of PRISEs (Progesterone-5β-Reductase/Iridoid Synthase-like Enzymes) of Plantago Species

open access: yesMolecules
Enzymes capable of processing a variety of compounds enable plants to adapt to diverse environmental conditions. PRISEs (progesterone-5β-reductase/iridoid synthase-like enzymes), examples of such substrate-promiscuous enzymes, are involved in iridoid and
Maja Dorfner   +5 more
doaj   +1 more source

Subcellular localization of enzymes involved in the biosynthesis of digoxin in Digitalis lanata

open access: yesFrontiers in Plant Science
Digoxin is a cardiac glycoside derived from the foxglove plant Digitalis lanata and is widely prescribed for treating heart failure and atrial fibrillation.
Viviane Zeng   +3 more
doaj   +1 more source

Cardenolides in nectar may be more than a consequence of allocation to other plant parts: a phylogenetic study of Asclepias

open access: yes, 2012
1.The primary function of secondary plant metabolites is thought to be defence against herbivores. The frequent occurrence of these same noxious compounds in floral nectar, which functions primarily to attract pollinators, has been seen as paradoxical ...
Rasmann, S.   +18 more
core   +1 more source

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