Results 11 to 20 of about 79,429 (193)
Diversity, 2014 Among the diversity of secondary metabolites which are produced by plants as means of defence against herbivores and microbes, pyrrolizidine alkaloids (PAs) are common in Boraginaceae, Asteraceae and some other plant families. Pyrrolizidine alkaloids are
Assem El-Shazly, Michael Wink
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Tolerating Toxins: Grasshoppers that Feast on Pyrrolizidine Alkaloids § [PDF]
CHIMIA, 2018 The elegant grasshopper (Zonocerus elegans) and the variegated grasshopper (Z. variegatus) are among insects that deliberately consume and store pyrrolizidine alkaloids which are subsequently used in defence mechanisms.
Catherine E. Housecroft
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Pyrrolizidine alkaloids of senecio sp from Peru
Química Nova, 2011 Six pyrrolizidine alkaloids (PAs) (two saturated macrocyclic, three unsaturated macrocyclic and one unsaturated seco-macrocyclic) were isolated from native Peruvian Senecio species.
Liliana Ruiz Vásquez and Matías Reina Artiles +3 more
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ProceedingsPyrrolizidine alkaloids (PAs) are heterocyclic organic compounds of natural origin synthesized by either plants or microorganisms [...]
Obinna Kenneth Didigwu +3 more
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Soil-borne microorganisms and soil-type affect pyrrolizidine alkaloids in Jacobaea vulgaris [PDF]
, 2009 Secondary metabolites like pyrrolizidine alkaloids (PAs) play a crucial part in plant defense. We studied the effects of soil-borne microorganisms and soil-type on pyrrolizidine alkaloids in roots and shoots of Jacobaea vulgaris.
Veen, J.A., van +3 more
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Genotoxicity of pyrrolizidine alkaloids [PDF]
Journal of Applied Toxicology, 2010 AbstractPyrrolizidine alkaloids (PAs) are common constituents of many plant species around the world. PA‐containing plants are probably the most common poisonous plants affecting livestock and wildlife. They can inflict harm to humans through contaminated food sources, herbal medicines and dietary supplements.
Tao, Chen, Nan, Mei, Peter P, Fu
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AASLD practice guidance on drug, herbal, and dietary supplement–induced liver injury
, 2022 Hepatology, EarlyView.
Robert J. Fontana +6 more
wiley +1 more source
Alcalóides pirrolizidínicos em espécies do gênero Senecio
Química Nova, 2006 Senecio species contain a large variety of secondary metabolites and many of these plants afford pyrrolizidine alkaloids. This paper is a review of the literature, describing 62 pyrrolizidine alkaloids already isolated in 62 of more than 2000 species of ...
Chana de Medeiros da Silva +2 more
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Foods, 2023 Pyrrolizidine alkaloids are secondary metabolites produced by plants as a defense against insects. These can cause acute or chronic toxicity in humans. Therefore, avoiding potential poisoning from the consumption of tea and culinary plants contaminated ...
Zinar Pinar Gumus
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Journal of Veterinary Research, 2022 Pyrrolizidine alkaloids (PAs) and tropane alkaloids (TAs) are natural contaminants of honey and respectively hepatoxic and neurotoxic compounds. Because honey is a popular constituent of the human diet, it is relevant to warrant the safety of the product.
Kowalczyk Ewelina, Kwiatek Krzysztof
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