解剖学和形态学
麻醉学
听力与言语-语言病理学
行为科学
心脏和心血管系统
细胞和组织工程学
临床神经病学
危重症监护医学
牙科,口腔外科和医学
皮肤病学
急诊医学
内分泌学和新陈代谢
肠胃学和肝脏学
老人病学和老年医学
卫生保健科学和服务
血液学
免疫学
传染病
综合和补充性医学
医学伦理学
医学信息学
医学实验室技术
医学,全科和内科
医学,法律
医学,研究和试验
神经系统科学
护理
营养学和饮食学
产科医学和妇科医学
肿瘤学
眼科学
整形外科学
耳鼻喉科学
病理学
儿科学
周围血管疾病
药理学和药剂学
生理学
基本医疗保健
精神病学
公共、环境和职业卫生
放射学,核医学和医学成像
康复学
生殖生物学
呼吸系统
风湿病学
运动科学
外科学
毒理学
热带医学
泌尿学和肾脏学
病毒学
老年医学
健康政策和服务
心理学,临床
abstract::Besides the known pyrrolidine alkaloids ruspolinone ( 1), norruspolinone ( 2), and norruspoline ( 3) the "bispyrrolidine" alkaloid hypercratine was isolated from the roots of RUSPOLIA HYPERCRATERIFORMIS M. R. (Acanthaceae). After chemical and spectroscopic analysis of the new compound, structure 4 is suggested. ...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-969927
更新日期:1983-08-01 00:00:00
abstract::The inhibition of butyrylcholinesterase activity in human serum by protoberberine, benzophenanthridine and aporphine alkaloids as well as four model compounds has been studied. The mechanism of the inhibition is discussed on the basis of the different types of interaction of these compounds with butyrylcholinesterase ...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-969916
更新日期:1983-07-01 00:00:00
abstract::From the essential oil of Commiphora guidotti seven sesquiterpene hydrocarbons and a furanosesquiterpenoid, furanodiene, were isolated. ...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-969896
更新日期:1983-06-01 00:00:00
abstract::The chloroform extract of the stems of Encelia ventorum yielded a new benzopyranbenzofuran dimer. The structure was assigned from (1)H-NMR and MS data as 4[2-(5-acetyl-6-hydroxybenzofuranyl)]-2-[6(7-methoxy-2, 2-dimethylbenzo-1 -pyranyl)]-pentan-2-ol. ...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-969992
更新日期:1983-04-01 00:00:00
abstract::A callus was induced from the petiole of Panax ginseng C. A. Meyer by treatment with 2,4-D. The callus has been maintained on the synthetic media containing 2,4-D as growth factor. Habituated ginseng callus which required no auxin for its growth was induced from a 2,4-D callus by successive treatments with a low conce...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-969981
更新日期:1983-03-01 00:00:00
abstract::Eight iridoid glucosides have been isolated from Euphrasia rostkoviana by the combination of open column- and high performance liquid chromatography. The structure of a new compound, named eurostoside, and the identity of the others have been established by chemical transformations and spectral evidence of the compoun...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-969960
更新日期:1983-02-01 00:00:00
abstract::From the roots of Aconitum crassicaule, two new diterpenoid alkaloids, crassicaulisine and crassicaulidine, were isolated. The structure of crassicaulisine, C (24)H (39)O (7)N, has been elucidated as 3 on the basis of chemical and spectral data, while the structure of crassicaulidine, C (24)H (39)O (8)N, has been show...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-969945
更新日期:1983-01-01 00:00:00
abstract::The accumulation of two dihydrofuroquinoline alkaloids has been studied in seventeen strains of Choisya ternata (Rutaceae) initiated from the same tree. The contents of platydesminium and balfourodinium vary in heavy proportions. The effect of some factors (age of the culture, NAA or glucose concentrations of the medi...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-971221
更新日期:1982-12-01 00:00:00
abstract::Comparative study of the seeds of two Cucurbitaceae Momordica charantia L. and Herpetospermum caudigerum Wall. shows and important difference for their metabolism concerning particularly aspartic acid. Momordica can produce vicin, while for Herpetospermum, this amino acid would give asparagin. In the other hand, betwe...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-971211
更新日期:1982-11-01 00:00:00
abstract::Different oil-samples of Melissa officinalis L. were analysed by capillary GC/MS, using fused silica columns and E.I.-Mass-spectrometry. Comparing the observed mass-spectra with those of a spectral collection, 70 compounds of the oil were identified. Geranial, neral, 6-methyl-5-hepten-2-one, citronellal, geranyl-aceta...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-970028
更新日期:1982-10-01 00:00:00
abstract::The methanol extract of the defatted roots of Asparagus adscendens Roxb. yielded beta-sitosterol beta-D-glucoside, two new spirostanol glycosides (asparanin C and asparanin D) and two new furostanol glycosides (asparoside C and asparoside D). ...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-970018
更新日期:1982-09-01 00:00:00
abstract::Strictosidine synthase was partially purified from Catharanthus roseus cell suspension cultures and immobilized on CNBr-activated Sepharose. The immobilized enzyme exhibits a thermostability increased 300 fold over that of the soluble enzyme and catalyses exclusively the formation of the 3alpha(S)-isomer, strictosidin...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-970008
更新日期:1982-09-01 00:00:00
abstract::The reactions of chloranil, fluoranil, 2,5 dichlorobenzoquinone and chloranilic acid with some alkaloids on thin layer chromatograms were examined with a view to determine their suitability as visualizing agents. Chloranil and 2,5 dichlorobenzoquinone (each 0.5% w/v in dioxan) were found to be most suitable as they ga...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-971381
更新日期:1982-08-01 00:00:00
abstract::From leaves of Penstemon barbatus Nutt. a new iridoid glucoside has been isolated. The structure was established mainly by spectroscopic methods ( (1)H-NMR, (13)C-NMR, IR, MS). ...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-971261
更新日期:1982-06-01 00:00:00
abstract::From the defatted seeds of Cassia marginata fam (Caesalpinaceae) two new anthraquinone glycosides have been isolated and characterised as physcion-8-O-alpha-L-xylopyranoside and emodin-8-O-alpha-L-arabinopyranoside. ...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-971241
更新日期:1982-05-01 00:00:00
abstract::A new strain of Claviceps was isolated from a blokked mutant of Claviceps purpurea. This strain accumulates substantial amounts of clavine alkaloids (2 g/l). The alkaloid fraction is composed of chanoclavine-I ( approximately 10%) and a mixture of agroclavine/elymoclavine (90%). Most suitable for alkaloid production i...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-971231
更新日期:1982-05-01 00:00:00
abstract::The composition of the phthalide mixture of the essential oil from roots of Levisticum officinale Koch was investigated. The phthalide mixture was analyzed by combining separation methods - GLC, LSC and TLC - and subsequently using spectroscopic methods - IR, MS and NMR. E- and Z-butylidenephthalide, E- and Z-ligustil...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-971448
更新日期:1982-04-01 00:00:00
abstract::Orosunol and 8-demethylorosunol, two new 1-aryl-2,3-naphthalide lignans, have been isolated from Justicia flava root. Structures IV and V respectively have been proposed for them by spectral (UV, IR, PMR, (13)C NMR, and MS) and chemical evidence. ...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-971427
更新日期:1982-03-01 00:00:00
abstract::The effect of nitrogen and carbon sources on growth and diosgenin production was studied with Dioscorea deltoidea cells which were grown under defined conditions in a chemostat, and transferred to batch cultures. Both ammonium and nitrate nitrogen were required for growth and steroid production; diosgenin production w...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-971414
更新日期:1982-02-01 00:00:00
abstract::An ionpair-HPLC-technic using a reversed-phase column was developed to screen plant extracts for cardiotonic amines and to isolate them in a preparative scale for direct MS and pharmacological investigations. By this method the positive inotropic tyramine could be isolated from Selenicereus grandiflorus (L.) Britt et ...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-971397
更新日期:1982-01-01 00:00:00
abstract::From roots of Rubia cordifolia L. four anthraquinones are isolated: 1-hydroxy 2-methoxy anthraquinone; 1,4-dihydroxy 2-methyl 5-methoxy anthraquinone or 1,4-dihydroxy 2-methyl 8-methoxy anthraquinone; 1,3-dimethoxy 2-carboxy anthraquinone and rubiadin. ...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-971524
更新日期:1981-12-01 00:00:00
abstract::Leaves and stem barks of S. scheffleri Gilg afforded eight dihydroindole alkaloids. Four tertiary monomers (O-methyl Na-acetylstrychnosplendine, Na-acetylstrychnosplendine, strychnobrasiline and strychnofendlerine) have been isolated from leaf material while stem barks yielded one tertiary monomer (desacetylisoretulin...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-971656
更新日期:1981-08-01 00:00:00
abstract::A pyrolytic gaschromatographic process was developed for the routine assay of both cyclodextrin inclusion complexes, and for the differentiation of the mechanical mixture of the same oil with beta-cyclodextrin. The method is a direct assay of low material demand. ...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-971636
更新日期:1981-07-01 00:00:00
abstract::The alkaloidal content of of the stem barks of Hernandia cordigera has been studied and compared to that of other Hernandia species. Main alkaloids are phenolic aporphines. ...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-971545
更新日期:1981-05-01 00:00:00
abstract::Variability in the oil content in natural populations of Cymbopogon jawarancusa is discussed. Races rich in piperitone, phellandrene and other chemical constituents have been identified. The oil producing ability was largely genetic and showed heritability of 79.0 percent. ...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-971731
更新日期:1981-04-01 00:00:00
abstract::The known alkaloids (+/-)-stylopine, (+/-)-sinactine, protopine, (+)-bulbocapnine, (-)-domesticine, (+)-corydine and (+)-isoboldine were found in the mixture of alkaloids from Corydalis marschalliana (Papaveraceae), growing in Bulgaria. The alkaloids dehydronantenine, (+)-nantenine and oxonantenine were isolated for t...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-971718
更新日期:1981-03-01 00:00:00
abstract::A gas-chromatographical method is described on which seven pyrrolizidine alkaloids (Fuchsisenecionine, Senecionine, Senecivernine, Senkirkine, Retrorsine, O (7)-Angelylheliotridine and Heliotrine) are determinated in a qualitative way and their ratio of concentration in Senecio fuchsii, vernalis, inaequidens and ovire...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-971688
更新日期:1981-02-01 00:00:00
abstract::The structure of albifloranine 1, a new alkaloid of ibogane type from the stem bark of Tabernaemontana albiflora (M IQ.) Pull. (Apocynaceae) has been determined. A detailed (1)H NMR study of albifloranine 1, coronaridine 2 and heyneanine 3 is presented. ...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-971678
更新日期:1981-01-01 00:00:00