Results 31 to 40 of about 1,572 (155)
Insects, 2020 Predators and parasitoids regulate insect populations and select defense mechanisms such as the sequestration of plant toxins. Sequestration is common among herbivorous insects, yet how the structural variation of plant toxins affects defenses against ...
Prayan Pokharel +3 more
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BMC Evolutionary Biology, 2017 Background The Na,K-ATPase is a vital animal cell-membrane protein that maintains the cell’s resting potential, among other functions. Cardenolides, a group of potent plant toxins, bind to and inhibit this pump.
Jennifer N. Lohr +4 more
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Molecules, 2012 In this work, we have evaluated the molluscicidal activity of two cardenolide extracts from <em>Adenium arabicum</em> Balf f. [the benzene (B) and methanol (M) extracts], one cardenolide extract from <em>Calotropis procera</em> ...
Alaa Bayoumi +3 more
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Calotropin and corotoxigenin 3-O-glucopyranoside from the desert milkweed Asclepias subulata inhibit the Na+/K+-ATPase activity [PDF]
PeerJ, 2022 Na+/K+-ATPase is an essential transmembrane enzyme found in all mammalian cells with critical functions for cell ion homeostasis. The inhibition of this enzyme by several cardiotonic steroids (CTS) has been associated with the cytotoxic effect on cancer ...
Salvador E. Meneses-Sagrero +6 more
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Cardiac glycosides isolated from the Indian-snuff, Maquira sclerophylla Ducke
Memorias do Instituto Oswaldo Cruz, 1991 The hydroalcoholic extract of the powdered bark of the Indian-snuff Maquira sclerophylla Ducke was purified by column chromatography in silica-gel and the major cardenolide isolated from preparative TLC was identified by 1H-NMR, 1 2 C-NMR and IR analyses.
João Ernesto de Carvalho +2 more
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Cardiac Glycosides in Human Physiology and Disease: Update for Entomologists
Insects, 2019 Cardiac glycosides, cardenolides and bufadienolides, are elaborated by several plant or animal species to prevent grazing or predation. Entomologists have characterized several insect species that have evolved the ability to sequester these glycosides in
Rif S. El-Mallakh +2 more
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Functional Ecology, Volume 40, Issue 2, Page 501-516, February 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Coevolutionary arms races between plants and insects, in which gains of novel plant defences select for counteradaptations in herbivores, are key drivers of biodiversity.
Broti Biswas +5 more
wiley +1 more source
Two New Cyototoxic Cardenolides from the Whole Plants of Adonis multiflora Nishikawa & Koki Ito
Molecules, 2015 A phytochemical investigation of the whole plants of Adonis multiflora Nishikawa & Koki Ito. resulted in the isolation and identification of two new cardenolides—adonioside A (1) and adonioside B (6)—as well as four known cardenolides: tupichinolide (
Jae-Woo Jung +10 more
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Food Science &Nutrition, Volume 14, Issue 1, January 2026.Chitosan is highlighted for its industrial applications include food processing and preservation, pharmaceuticals, agriculture systems, and environmental protection. ABSTRACT Chitin, the natural biopolymer of the world next to cellulose, is a modified biodegradable polysaccharide.
Saeedeh Karimlar +4 more
wiley +1 more source
Ecology and Evolution, 2020 To understand how comprehensive plant defense phenotypes will respond to global change, we investigated the legacy effects of elevated CO2 on the relationships between chemical resistance (constitutive and induced via mechanical damage) and regrowth ...
Leslie E. Decker, Mark D. Hunter
doaj +1 more source