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Pyrrolizidine Alkaloids: Biosynthesis, Biological Activities and Occurrence in Crop Plants
Molecules, 2019 Pyrrolizidine alkaloids (PAs) are heterocyclic secondary metabolites with a typical pyrrolizidine motif predominantly produced by plants as defense chemicals against herbivores.
Sebastian Schramm +2 more
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Pyrrolizidine alkaloids in honey: determination with liquid chromatography-mass spectrometry method
Journal of Veterinary Research, 2018 Pyrrolizidine alkaloids (PAs) are probably the most widespread toxins of natural origin. More than 6,000 plant species produce these toxic compounds. Bees can forage on flowers of plants producing PAs, which leads to contamination of honey with the toxic
Kowalczyk Ewelina, Kwiatek Krzysztof
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Improved Method for Isolation of Lycopsamine from Roots of Comfrey ()
Natural Product Communications, 2012 An improved method for the isolation and purification of pyrrolizidine alkaloids from comfrey ( Symphytum officinale L.) roots was developed, introducing very fast, selective and ion residue-free reduction of N -oxides followed by ion-exchange ...
Damjan Janeš +2 more
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Frontiers in Chemical BiologyThe food control of tropane and pyrrolizidine alkaloids has become in recent years in Europe one of the main priorities within the food safety field due to the exponential increase in food alerts related to the concerning levels of these natural toxins ...
Natalia Casado +4 more
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Pyrrolizidine Alkaloids: the underestimated natural toxicants
RevSALUS, 2022 Ana, Cláudia Ribeiro, Sandra Leal
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Assessing Mutagenicity of Methanolic Exteract of Borage Flower (Echium amuenum) Using Ames Bioassay
Iranian South Medical Journal, 2014 Background: pyrrolizidine alkaloids have been isolated from Echium amuenum. These alkaloids knowing as hepatotoxic, damage the liver. Mutagenicity of pure pyrrolizidine alkaloids has been identified.
Meysam Moosavi +4 more
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Development of a High-Resolution Tandem Mass Spectral Library for Pyrrolizidine Alkaloids (PASL)
Scientific DataThis Data Descriptor reports the submission of a High-Resolution Orbitrap Mass Spectral Library of Pyrrolizidine Alkaloids (PASL) to public repositories.
Leonie V. Straub +4 more
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Dietary alkaloids and the development of androconial organs in Estigmene acrea
Journal of Insect Science, 2003 Male salt marsh moths, Estigmene acrea (Lepidoptera: Arctiidae), possess inflatable androconial organs called coremata. Prior to mating males form aggregations and inflate their coremata en masse.
Jason W. Davenport, William E. Conner
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2018
Naturally occurring pyrrolizidine alkaloids (PAs) are isolated from plants and other sources. The interest of the scientific community in these compounds owes itself to their high toxicity and biological activity, as well as to the challenge of synthesizing their pyrrolizidine scaffold.
Joaquín, Tamariz +3 more
openaire +3 more sources
Naturally occurring pyrrolizidine alkaloids (PAs) are isolated from plants and other sources. The interest of the scientific community in these compounds owes itself to their high toxicity and biological activity, as well as to the challenge of synthesizing their pyrrolizidine scaffold.
Joaquín, Tamariz +3 more
openaire +3 more sources