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Table of Content
25 April 1992, Volume 14 Issue 02
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  • Articles
    CHEMICAL STRUCTURES OF PAXILLARINE A,B AND SPIROPACHYSINE B
    QIUMing-Hua NIE Rui-Lin LI Zhong-Rong ZHOU Jun
    1992, 14(02):  1-3. 
    Abstract ( 2582 )   HTML ( )   PDF (459KB) ( 1334 )   Save
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    This paper describes the chemical structural elucidations of the three new steroidal alkaloids from Pachysandra axillaris Franch. On the basis of the spectral analyses of MS, IR,1H, 13C NMR and DEPT spectra and chemical evidences.
    THE URSANE TYPE TRITERPENES FROM ROOT OF TRIPTERYGIUM HYPOGLAUCUM
    ZHANGXian-Ming WANG Chuan-Fen WU Da-Gang
    1992, 14(02):  1-3. 
    Abstract ( 2288 )   HTML ( )   PDF (216KB) ( 1297 )   Save
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    A new ursane type triterpene compound, 3-oxo-22a-hydroxy- ursan-12-en-30-oic acid (30, 22a)-lactone named hypoglaulide (1), and two known compounds, triptotriterpenic acid C (H) and regelin (in), were isloated from the ethyl acetate soluble frac-tion of the alcohol extract of the root of Tripterygium hypoglaucum (Levl.) Levl. ex Hutch, by the means of column chromatography. Their structures were established on the basis of spec-tral and chemical methods.
    STUDIES ON CHEMICAL CONSTITUENTS OF ESSENTIAL OILS OF THREE SPECIES OF SAUSSUREA
    CHENNeng-Yu ZAIJian-Jun PANHui-Ping HE Yuan-Li SONG Zhi-Zhong JIA Zhong-Jian
    1992, 14(02):  1-3. 
    Abstract ( 1910 )   HTML ( )   PDF (370KB) ( 1081 )   Save
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    Qualitative and quantitative analysis of the essential oils steam distilled from the aer ial parts of Saussurea arenaria, S.iodostegia and S.japonica by means of capillary gas chromatography and GC / MS spectrometry. The relative contents of the components in the essential oils were calculated by means of area of normalization. In Saussurea arenaria, S.iodostegia and S.japonica,the 37, 69 and 29 components were identified, respectively.
    THE CHEMICAL CONSTITUENTS OF COLEUS ESQUIROLII
    LIChao-Ming LIN Zhong-Wen ZHENGHui-Lan ZHANG Hong-Jie SUN Han-Dong
    1992, 14(02):  1-3. 
    Abstract ( 2522 )   HTML ( )   PDF (264KB) ( 1265 )   Save
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    从毛萼鞘蕊花(Coleus esquirolii(Lévl)Dunn)全草中分到33个新的二萜,毛萼鞘蕊花乙素(esquirolin B)(1),毛萼鞘蕊花丙素(esquirolin C)(2),毛萼鞘蕊花丁素(esquirolin D)(3),和2个已知化合物,cariocal(4)和蒲公英赛醇(taraxerol)。
    EFFECTS OF THE OLIGOSACCHARINS AND COCONUT MILK ON CALLUS CULTURE OF ONOSMA PANICULATUM
    ZHOU Li-Gang ZHEN Guang-Zhi WANG Shi-Lin GAN Fan-Yuan
    1992, 14(02):  1-3. 
    Abstract ( 2891 )   HTML ( )   PDF (319KB) ( 1172 )   Save
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    C-7 and C-8 are oligosaccharins extracted from Dendrobium candidum, G-7 and G-8 are oligosaccharins from Panax ginseng. The purple herb pigment content was increased by C-8 in 0.paniculatum callus the most significantly among the four kinds of oligosaccharins, and its pigment content was 5.795 ± 0.024 mg / g DW being 3.27 fold of the content in control callus.
    INDUCTION AND SELECTION OF AUXOTROPHIC MUTANTS FROM THE PROTOPLASTS OF LENTINUS EDODES
    YANG Chong-Lin ZHANG Jian-Ming
    1992, 14(02):  1-3. 
    Abstract ( 2754 )   HTML ( )   PDF (333KB) ( 1220 )   Save
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    Protoplasts isolated from monokaryotic mycelia of Lentinus edodes were spread on CM containing 0.6 mol /1 sucrose and irradiated for 30 seconds. After colonies formed, they were transplanted on MM anfl those showing little growth were detected further. 7 auxotrophic mutants were obtained at last, among which 3 mutants remained stable after protoplast isolation, regeneration and mycelial subculture on CM slant for 3 times. They can be used in protoplast fusion in later studies, despite their protoplast yields were low and have to be improved.
    EFFECTS OF BENZYLADENINE(BA) ON THE SOME PHYSIOLOGICAL PROPERTIES AND THE CULTURED EFFICIENCIES OF ANTHERS IN BARLEY
    ZHONGHun-Xin PAN Xiang-Qun CHENHan-Min YU Zhao-Yu LIANG Hai-Man
    1992, 14(02):  1-3. 
    Abstract ( 2566 )   HTML ( )   PDF (648KB) ( 1415 )   Save
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    The upper leaves of anther donor plants of barley bearing anthers at the early uninucleate stage of pollen were sprayed with BA 5, 20 and 50 mg/1 containing 0.1 TWeen-80. The effects of BA-spraying on anther cultures were as follows:1.Treated with 0.1 TWeen-80 (CK n), the formation of pollen callus in barley anthers was increased, and treated with BA 5 mg /1 containing 0.1 TWeen-80, the formation of pol-len callus was further increased.
    STUDY ON KARYOTYPES OF THREE SPECIES OF ROEGNERIA
    SUN Gen-Lou YAN Ji YANG Jun-Liang
    1992, 14(02):  1-3. 
    Abstract ( 2520 )   HTML ( )   PDF (277KB) ( 1168 )   Save
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    In this paper the karyotypes of Roegneria komarovii (Nevski) Nevski, R.fedtschenkoi (Tzvel.) J.L.Yang et B.R.Lu and R. caucasica Nevski were analysed. The karyotype formulae are as follows: R.komarovii: 2n= 4x= 28= 24m+ 2sm+ 2sat; R.fedtschenkoi: 2n= 4x= 28= 24m+ 2sm+ 2sat; R.caucasica: 2n= 4x= 28= 22m+ 2sm+ 4sat. The karyotpyes of R.komarovii, R.fedtschenkoi and R.caucasica fall into "2A" type.
    LIGHT SENSITIVE SEEDS IN DICOTYLEDONS AND THEIR BIOLOGICAL CHARACTERS
    REN Zhu-San
    1992, 14(02):  1-3. 
    Abstract ( 2701 )   HTML ( )   PDF (466KB) ( 1364 )   Save
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    This paper reported the light sensitive seeds (LS seed) in 43 families, 84 genera. The morphological charaters of LS seeds, seed dispersal type, plant growth behavious and distribu-tion in dicotyledon plant system are discussed.
    SEASONAL CHANGES OF FUNCTIONAL PHLOEM OF SOME DECIDUOUS TREES ON HAINAN ISLAND
    WU Ji-Lin HAO Bing-Zhong
    1992, 14(02):  1-3. 
    Abstract ( 2922 )   HTML ( )   PDF (517KB) ( 1174 )   Save
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    The seasonal development of secondary phloem of 23 species of deciduous trees dis-tributed naturally or introduced on Hainan Island in tropical area of China was studied using microscopy. The functional phloem thickness in main trunk and branchlet of 6 species of the trees wen determined systematically and for the rest trees a comparision of functional phloem thickness in main trunk was made between leaf-absent and leaf-bearing period. According to the characteristics of phloem development in main trunk of the trees studied, they can be di-vided into three groups. The trees in the first group have a functional phloem in leaf-absent pe-riod with a thickness over 70 as that in leaf-bearing period.
    THE ULTRASTRUCTURAL STUDY ON THE EARLY DEVELOPMENT OF ENDOSPERM OF NITRARIA SIBIRICA
    LIShi-Weng MAHong TU Li-Zhu
    1992, 14(02):  1-3. 
    Abstract ( 2441 )   HTML ( )   PDF (679KB) ( 1244 )   Save
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    On the basis of the previous studies with light microscopy, we attempted to use TEM observing the early development of the endosperm in Nitraria sibirica Pall.The endosperm undergoes three developmental phase: free nuclear endosperm, cellularization, and disintegrative and absorbtive phase. At the free nuclear stage, the nuclei are surrounded by mass of dense cytoplasmic matrix.
    A NEW VARIETY OF TOXICODENDRON FROM YUNNAN
    CHENZhen-Feng ZHOU Yong-Nian
    1992, 14(02):  1-3. 
    Abstract ( 2052 )   HTML ( )   PDF (33KB) ( 1059 )   Save
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    A var.succedaneo differt foliis paniculis ad apicem ramulorum aggregatis, foliolis 3-4-jugis,basi decursivis,ramulis rachis fare villosis.
    ANATOMICAL STUDIES OF PETIOLE IN LIGUSTICUM FROM CHINA
    PANZe-Hui WUZhu-Jun PU Pa-Ting
    1992, 14(02):  1-3. 
    Abstract ( 2394 )   HTML ( )   PDF (599KB) ( 1127 )   Save
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    Nearly 30 species of Ligusticum occur in China. This paper deals with the petiolar anatomy of 21 species (25 samples) in the genus. The anatomical characters of 21 species are very diverse and listed in Table 1 and Plates I, II Comparing the petiolar anatomy of 8 populations belonging to 4 species, it is shown that the anatomical characters of petioles in Ligusticum possess certain stability except with some variations of numbers of vascular bundles within a species, and can be used as a useful taxonomical evidence.
    ON THE REDUCTION OF ROBOROWSKIA BATALIN
    ZHUANG Xuan(H.CHUANG) SU Zhi-Yun
    1992, 14(02):  1-3. 
    Abstract ( 2746 )   HTML ( )   PDF (258KB) ( 1250 )   Save
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    There were two different views about the status of the monotytic genus Roborowskia Batalin, since it was established in 1893 based upon the Roborowski's collection from KLunlun mountain. As far as it has been treated as an endemic genus of China by some botanists without regard to the advices ofHutchinson (1921), Lid6n (1986), and so on. They had ever pointed out that it is perhaps not distinguishable from Corydalis and had better to be a section of Corydalis.
    NEW BAMBOOS OF FARGESIA AND CHIMONOBAMBUSA FROM SICHUAN
    YI Tong-Pei
    1992, 14(02):  1-3. 
    Abstract ( 2604 )   HTML ( )   PDF (234KB) ( 1116 )   Save
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    Species F.fractiflexae mihi similis,sed culmis non cractiflexis;vaginis culmorumpersistentibus,superne fasciariis,membranaceis, nervillis transversis conspicuis,lamilispatentibus vel erectis;laminis foliorum minoribus,4-9(10)cm longis,3-6(7)mm latis,nervis secundariis 2-raro3-jugis differt.
    NEW TAXA OF THE GENUS THLADIANTHA (CUCURBITACEAE)
    LI Jian-qiang WU Zheng-Yi
    1992, 14(02):  1-3. 
    Abstract ( 2084 )   HTML ( )   PDF (117KB) ( 1032 )   Save
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    Species affinis T.grandisepalae A.M.Lu et Z.Y.Zhang,a qua differt sepalis majoribus, flabellatis,margine irregulariter obtuse dentatis,1 cm longis,1.1 cm latis,petalis minoribus,8.5 mm longis,3.5 mm latis, anguste ovatis,apice acuminatis.
    A REVISION OF CAMELLIA SECT. THEA
    MING Tien-Lu
    1992, 14(02):  1-3. 
    Abstract ( 2921 )   HTML ( )   PDF (1276KB) ( 1437 )   Save
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    This paper deals with the classification, evolution and distribution of Sect. Thea.The results of these studies may be summarized as follows: 1) In the last years, a great number of new species in Sect.Thea and Sect.Glaberrima are re-ported. Acceding to the investigation and comparative studies on two Sections and about 47 species, Sect.Glaberrima is merged into Sect.Thea, 12 species and 5 varieties are determined in Sect.Thea.