Narcissus pseudonarcissus L.

In 1956, the alkaloid Methylpseudolycorine (101) isolated from the King Alfred daffodil (Narcissus pseudonarcissus L.) was oxidized to the pale yellow chloride with selenium dioxide (Scheme 36). Conversion into the betaine was accomplished by aqueous ammonia to give yellow prisms of the trihydrate of Criasbetaine (100) (56JA4145, 56JA4151). The UV absorption... 

MORSTADT L, GRABER P, DE PASCALIS L, KLEINIG H, SPETH V and BEYER P (2002) Chemiosmotic ATP synthesis in photo synthetically inactive chromoplasts from Narcissus pseudonarcissus L. linked to a redox pathway potentially also involved in carotene desaturation , Planta, 215, 132-40. 

The following Narcissus plants contain the lactams narciclasine and lyeoricidine, Narcissus pseudonarcissus L., King Alfred, Flower Carpet, Rembrandt, Mount Hood, President Lebrun, Golden Harvest. 

KREUZ, K., BEYER, P., KLEINIG, H., The site of carotenogenic enzymes in chromoplasts from Narcissus pseudonarcissus L, Planta 1982,154,66-69. 

Gude M, Hausen BM, Heitsch H, Konig WA (1988) An investigation of the irritant and allergenic properties of daffodils Narcissus pseudonarcissus L., Amaryllidaceae). Contact Dermatitis 19 1-10... 

Weis A (1969) Untersuchungen iiber Wachstumsregulatoren in Bliiten von Narcissus pseudonarcissus L. und zum Auxintransport in Griffeln von Digitalis purpurea L. Diss Univ d Saarlandes, Saarbriicken... 

In vitro, daffodil chromoplasts (Narcissus pseudonarcissus L.) synthesize... 

Daffodil chromoplasts (Narcissus pseudonarcissus L.) convert I I-phytoene in more desaturated and cyclic carotenes. Recently, we succeeded in the dissection in vitro of these membrane bound reactions into three independent segments, the desaturation of phytoene to -carotene, the desaturation of... 

Kreh, M., R. Matusch, and L. Witte. 1995. Acetylated alkaloids from Narcissus pseudonarcissus. Phytochemistry 40 1303-1306. 

N. poeticus and N. pseudonarcissus for this purpose. It is now known that N. poeticus contains 0.012% of the antineoplastic agent narciclasine (68) in the fresh bulb (14,101). Arabian, North African, and Chinese medical practitioners of the Middle Ages continued using Narcissus oil in cancer treatment (389). For example, bulbs of N. tazetta L. var. chinensis, cultivated in China as a decorative plant, were used topically for the treatment of tumors in folk medicine. In this case, pretazettine (64) was established to be one of the antitumor active compounds (133,390). The bulbs of N. tazetta continue to be used in Turkey as a home remedy for the treatment of abscesses because of their antiphlogistic and analgesic properties (391). 

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