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duboisia leichhardtii/nicotina
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14 resultados
The Pituri Learning Circle: central Australian Aboriginal women's knowledge and practices around the use of Nicotiana spp. as a chewing tobacco.
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Tobacco smoking has a range of known and predictable adverse outcomes, and across the world sustained smoking reduction campaigns are targeted towards reducing individual and public risk and harm. Conversely, more than 87 million women, mostly in low- and middle-income countries, use smokeless
Alkaloid biosynthesis in somatic hybrids of Duboisia leichhardtii F. Muell. and Nicotiana tabacum L.
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Somatic hybrids of Duboisia leichhardtii and Nicotiana tabacum were obtained by electrofusion followed by individual cloning. The hybrid nature of the cloned cells and regenerated shoots was confirmed by cytological investigation and ribosomal-DNA analysis, respectively. The hybrid plantlets
Genetic diversity among sublines originating from a single somatic hybrid cell of Duboisia hopwoodii + Nicotiana tabacum.
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The genetic instability of an intertribal hybrid cell line, Duboisia hopwoodii + Nicotiana tabacum, obtained by mechanical isolation of a single hybrid cell was studied. Ten subclones of calli derived from this hybrid cell line were cultured for 3 years, and their genetic makeup clarified as to
Tobacco and Pituri Use in Pregnancy: A Protocol for Measuring Maternal and Perinatal Exposure and Outcomes in Central Australian Aboriginal Women.
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Maternal tobacco smoking is a recognized risk behavior that has adverse impacts onmaternal and fetal health. However, in some populations, the use of smokeless tobacco exceeds theuse of smoked tobacco. In central Australia, Aboriginal populations utilize wild tobacco plants(Nicotiana spp.) as
In vitro cytotoxicity of Nicotiana gossei leaves, used in the Australian Aboriginal smokeless tobacco known as pituri or mingkulpa.
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The Aboriginal population of Central Australia use endemic Nicotiana species to make a smokeless tobacco product known usually as pituri or mingkulpa. Nicotiana leaves are masticated with wood ash into a 'quid' that is chewed/sucked for absorption of nicotine. In addition to nicotine, smokeless
The pituri story: a review of the historical literature surrounding traditional Australian Aboriginal use of nicotine in Central Australia.
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The harmful outcomes of nicotine self administration have been the focus of sustained global health education campaigns that have targeted tobacco smoking and to a lesser extent, smokeless tobacco use. 'Smokeless tobacco' infers that the nicotine is not burnt, and administration can be through a
Corrigendum to "In vitro cytotoxicity of Nicotiana gossei leaves, used in the Australian Aboriginal smokeless tobacco known as pituri or mingkulpa" [Toxicol. Lett. 254 (2016) 45-51].
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Occurrence of nicotine together with hyoscine in Duboisia myoporoides R. Br.
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Tropane alkaloid production in cultured cells of Duboisia leichhardtii.
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Calluses were derived from explants of aerial parts of a Duboisia leichhardtii F. Muell. plant. After 3 months of culture we detected small amounts of hyoscyamine and scopolamine in the unorganized calluses, but the amounts decreased until they were undetectable with successive subculture. When
The ethnopharmacology of pituri.
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During the 19th and early part of the 20th century, Australian Aborigines exploited a plant, Duboisia hopwoodii F. Meull. The leaves were cured and packaged in specially woven containers and the finished product, pituri, traded throughout half a million square kilometres of territory. Pituri was
Psychoactive substances of the South Seas: betel, kava and pituri.
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Before white man brought his alcohol to the South Pacific, the indigenes were using many wild plants possessing psychoactive properties. The most prominent were betel in much of Melanesia, kava in much of Polynesia, and pituri in much of Australia. The use of each of these three drugs was
Silencing of quinolinic acid phosphoribosyl transferase (QPT) gene for enhanced production of scopolamine in hairy root culture of Duboisia leichhardtii.
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Scopolamine is a pharmaceutically important tropane alkaloid which is used therapeutically in the form of an anesthetic and antispasmodic drug. The present study demonstrates enhanced scopolamine production from transgenic hairy root clones of Duboisia leichhardtii wherein the expression of
Alkaloid production in Duboisia hybrid hairy root cultures overexpressing the pmt gene.
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Putrescine:SAM N-methyltransferase (PMT) catalyses the N-methylation of the diamine putrescine to form N-methylputrescine, the first specific precursor of both tropane and pyridine-type alkaloids, which are present together in the roots of Duboisia plants. The pmt gene of Nicotiana tabacum was
The influence of indigenous food procurement techniques on populations of cyanobacteria in pre-European Australia: a potential small-scale water amelioration tool.
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During times of pre-European Australia, indigenous people utilized methods of food procurement that resulted in toxic phytochemicals from plants entering their waterholes. This paper focuses on three of these plants, namely the leaves of Acacia colei and Duboisia hopwoodii, which were used by
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