Micropropagation of Cephalotaxus harringtonia
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چکیده
منابع مشابه
Antitumor Alkaloids in Callus Cultures of Cephalotaxus Harringtonia
Leaves and stems of CephalolaxlIs harringlonia were induced to callus on Murashige and Skoog medium supplemented with additional vitamins, hypoxanthine, naphthaleneacetic acid and kinetin. Analysis by GC-MS showed cephalotaxine and its antitumor esters (harringtonine, isoharringtonine and homoharringtoninel in both callus and medium, whereas deoxyharringtonine was present (in relatively large a...
متن کاملCephalocyclidin A, a novel pentacyclic alkaloid from Cephalotaxus harringtonia var. nana.
A novel alkaloid with an unprecedented fused-pentacyclic skeleton and six-consecutive asymmetric centers, cephalocyclidin A (1), has been isolated from the fruits of Cephalotaxus harringtonia var. nana, and the structure was elucidated on the basis of spectroscopic data. The relative and absolute stereochemistry of 1 was determined by a combination of NOESY correlations, X-ray crystallographic ...
متن کاملAntitumor alkaloids for Cephalataxus harringtonia: structure and activity.
0 Cephalotaxine and several of its esters were isolated from Cephalotaxus harringtonia K. Koch var. harringtonia. Although cephalotaxine is inactive, harringtonine, isoharringtonine, homoharringtonine, and deoxyharringtonine have shown significant activity against experimental P388 leukemia and against L-121O leukemia in mice. Keyphrases 0 Cepha/otaxus harringtollia alkaloids-structure. antitum...
متن کاملInvestigation of the essential oils from three Cephalotaxus species.
Essential oils from leaves of Cephalotaxus fortunei Hook., Cephalotaxus haningtonia K. Koch., Cephalotaxus sinensis Li. and variety Cephalotaxus harringtonia var. drupacea Koidz. underwent qualitative and quantitative analysis. The content of the oils obtained by hydrodistillation in the investigated species was 0.01 - 0.22% v/w. Gas chromatography (GC-MS) with flame ionisation detector (FID) s...
متن کاملHPLC-electrospray ionization-MS-MS analysis of Cephalotaxus harringtonia leaves and enhancement of the extraction efficiency of alkaloids therein by SFE.
A high-performance liquid chromatographic method is developed for use in the electrospray mass spectrometric (MS)-MS analysis of alkaloids contained in Cephalotaxus harringtonia leaves. Nine alkaloids having ester groups can be separated and detected with good sensitivity. The MS and MS-MS spectra obtained provides information on their chemical structures. Supercritical fluid extraction is also...
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ژورنال
عنوان ژورنال: HortScience
سال: 1994
ISSN: 0018-5345,2327-9834
DOI: 10.21273/hortsci.29.2.120