Welcome to Bulletin of Botanical Research! Today is Share:

Archive By Volume

    Bulletin of Botanical Research 2001 Vol.21
    Please wait a minute...
    For Selected: Toggle Thumbnails
    A NEW SPECIESOF HOUTTUYNIA MEDICINAL PLANTS IN EMEISHAN
    ZHU Zheng-yin, ZHANG Shi-liang
    Bulletin of Botanical Research    2001, 21 (1): 1-2.  
    Abstract355)      PDF(pc) (97KB)(313)       Save
    Related Articles | Metrics
    A NEW SPECIES OF JUNCUS PROM YUNNAN
    QIAN Yi-yong
    Bulletin of Botanical Research    2001, 21 (1): 3-4.  
    Abstract298)      PDF(pc) (105KB)(181)       Save
    Related Articles | Metrics
    A NEW SPECIES OF ARISAEMA FROM EMEISHAN
    ZHU Zheng-Yin, MIN Bai-Qing
    Bulletin of Botanical Research    2001, 21 (1): 5-6.  
    Abstract301)      PDF(pc) (102KB)(148)       Save
    Related Articles | Metrics
    ON THE IDENTITY OF LEDEBOURIELLA H WOLFF
    YANG Chang-you, WANG Bing
    Bulletin of Botanical Research    2001, 21 (1): 7-8.  
    Abstract275)      PDF(pc) (110KB)(224)       Save
    Related Articles | Metrics
    SOME NEW RECORDED SPERMATOPHYTE FROM JIANGSU AND ANHUI PROVINCE
    LI Hong-qing, QIAN Shi-xin
    Bulletin of Botanical Research    2001, 21 (1): 9-10.  
    Abstract339)      PDF(pc) (99KB)(183)       Save
    In this paper, the authors report the new records of species and genera from Jiangsu and Anhui province. It includes 9 species and 3 genera of which Sedum jiaodongense Y. M. Zhang et X. D. Chen, Camellia japonica L., Cnidium japonicum Miq., Cotula anthemoides L., Camellia L. and Cotula L. are new in Jangsu province, Corylus chinensis Franch, Lecanthus peduncularis (Wall. ex Royle) Wedd., Pilea angulata (Bl.) Bl. subsp. petiolaris (Sieb. et Zucc.) C. J. Chen, Boehmeria formosana Hayata var. fuzhouensis W. T. Wang, Mollugo verticillata L. and Lecanthus Wedd. are new in Anhui province.
    Related Articles | Metrics
    FLORAL MICROCHARACTERS OF THE SUBTRIBE TUSSILAGININAE(ASTERACEAE:SENECIONEAE) OF THE EASTERN ASIA AND THEIR SYSTEMATIC AND TAXONOMIC SIGNIFICANCE
    LIU Jian-Quan
    Bulletin of Botanical Research    2001, 21 (1): 11-17.  
    Abstract303)      PDF(pc) (975KB)(195)       Save
    The floral microcharacters in Subtrib. Tussilagininae are investigated in the paper. They include anther apex sterile tissue, endothecium type, anther base, anther collar, style apex, style hair, stigmatic configuration and carpodial cell rows. Furthermore, the evolutionary trends of the floral microcharacters in Subtribe Tussilagininae are discussed based on the obtainable data. The results indicate: Nannoglottis seems to be an isolated genus of the Astereae;Subtrib. Tephroseridinae is an intermediate group between Subtrib. Tussilagininae and Subtrib. Senecioninae;and based on the floral microcharacters, 13 genera of Subtrib. Tussilagininae of the eastern Asia can be aggregated into 6 genetic groups.
    Related Articles | Metrics
    A CLADISTIC TAXONOMY STUDY ON THE GENUS HEDYSARUM IN MONGOLIAN PLATEAU
    SA Ren, ZHAO Yi-zhi
    Bulletin of Botanical Research    2001, 21 (1): 18-23.  
    Abstract278)      PDF(pc) (257KB)(238)       Save
    The systematic evolution of Hedysarum (Leguminosae) distributed in Mongolian Plateau had been studied by Maximum Same Step Method of Xu Ke-xue. According to the results of cladistic study, the two new subgenera Subgenus Hedysara Y.Z. Zhao et al. and Subgenus Fruticosa Y.Z. Zhao et al. were erected in Hedysarum of Mongolian Plateau. Furthermore, the genus was subdivided into four sections, such as Sect. Fruticosa B. Fedtsch., Sect. Obscura B. Fedtsch., Sect. Multicaulia Boiss, Sect. Subacaulia Boiss, which was consistent with the treatment in "Flora of USSR"(1945).
    Related Articles | Metrics
    THE FLORISTIC CHARACTERISTICS IN THE AREA OF THE HEXI CORRIDOR
    CHEN Peng, PAN Xiao-ling
    Bulletin of Botanical Research    2001, 21 (1): 24-30.  
    Abstract303)      PDF(pc) (293KB)(356)       Save
    The Hexi Corridor is located in the western part of the Gaansu Province, belonging typical interior arid region and characterized in the temperate desert climate. There are 326 species of seed plants, which belong to 52 families and 166 genera. The floristic characteristics in the area are as follows:1. Species are poorer, the seed flora in Hexi Corridor consists of 52 families, 166 genera and 326 species. The ratio of genus and species is 50.92%. Floristic dominance is obvious in this area, 5 dominant families contain more than 50 percent of genera and species in the flora;2. The Temperate Zone is superior to numbers of species in the area;3. On the life form of plants of the flora, it is primary perennial herbs and shrubs;the Hexi Corridor has obvious characteristics of Temperate Desert;4. The origin of flora in the Hexi Corridor is older;5.Quantitative comparison and analysis on florae in the Hexi Corridor and in related area such as Alashan, the Tarim Basin, the Zhungeer Basin and the Tsaidam Basin indicates that desert flora in Northwestern China is an unity according to their composition and evolution way.
    Related Articles | Metrics
    SOME NOTABLE QUESTIONS OF STUDIES ON FLORA-TO DISCUSS WITH MR. SUN YE-GEN
    ZHANG Guang-fu
    Bulletin of Botanical Research    2001, 21 (1): 31-33.  
    Abstract223)      PDF(pc) (147KB)(402)       Save
    It has been discussed about the concept, object, and contents of flora in this paper. It is noted that a flora mainly deals with its character, endemism, vicariance, regionalization, origin and development, and the relationship between the flora and palaeogeology & palaeoenvironment. In addition, it is also discussed about the notable questions of studies on flora at present.
    Related Articles | Metrics
    NOTES ON MYXOMYCETES FROM DAQINGGOU NATURE RESERVE IN INNER MONGOLIA
    TOLGOR, LI Yu
    Bulletin of Botanical Research    2001, 21 (1): 34-37.  
    Abstract289)      PDF(pc) (174KB)(132)       Save
    In this paper, 22 species of Myxomycetes from Daqinggou Nature Reserve in Inner Mongolia was reported for the first time. They belong to Ceratiomyxales, Liceales, Trichiales, Physarales and Stemonitidales. There are 7 new records to Inner Mongolia, including Cribraria microcarpa (Schrad.) Pers., Enterdium splendens (Morgan) Macbr., Physarum didermoides (Pers.) Rost., Ph. globuliferum (Bull.) Pers., Lamproderma arcyrionema Rost., Diachea leucopodia (Bull.) Rostaf. and Diachea bulbillosa (Berk. et Br.) Lister.
    Related Articles | Metrics
    FLORISTICS AND GEOGRAPHICAL DISTRIBUTION OF BRYOPHYTES IN YIWULU MOUNTAIN, WILDERNESS AREA
    YU Jing, CAO Tong, GUO Shui-Liang, REN Qi-chang, FEI Li-Jun, SHI Ji-Feng
    Bulletin of Botanical Research    2001, 21 (1): 38-41.  
    Abstract246)      PDF(pc) (174KB)(241)       Save
    In this paper, bryophyte of Yiwulu Mountain is reported first. There are 129 taxa belong to 28 families 31 genera. Among them, 3 species are new records of northeastern China and 1 species is new to Liaoning province. Geographical distribution and flora are discussed.
    Related Articles | Metrics
    INVESTIGATION OF TAXUS MAIREI ON MANGHE FOREST REGION OF YANGCHENG COUNTY IN SHANXI PROVINCE
    RU Wen-Ming
    Bulletin of Botanical Research    2001, 21 (1): 42-46.  
    Abstract234)      PDF(pc) (210KB)(191)       Save
    Abstract in this paper, it preliminrarily studies with the geographical distribution, ecological enviroment, floristic elements and community structue. At the end of this paper, some suggestions are raised about protection and development of Taxus mairei forest in the shanxi province.
    Related Articles | Metrics
    MICROMORPHOLOGICAL CHARACTERS OF FRUIT COATS IN ILEX KUDINGCHA C.J.TSENG AND RELATIVE SPECIES AND THEIR TAXONOMIC SIGNIFICANCE
    WANG Yu-guo, WEI Fa-nan
    Bulletin of Botanical Research    2001, 21 (1): 47-50.  
    Abstract279)      PDF(pc) (388KB)(220)       Save
    Scanning electron microscope (SEM) was used to examine characters of fruit coats in a medical plant, Ilex kudingcha C. J. Tseng, and its relative 4 species. In those species, stomatal apparatus is ovate or suborbicular or elliptic and only presents on the fruit surface. Ornamentation of outer stomatal ledge (or rim) is nearly smooth or with wax fragments and inner margin of them is nearly smooth, rarely sinuolate. Cuticular membrane is insular but annular around stomata. As a result of observation, characters of fruit coats under SEM are very useful evidence in identifying and classifying of Ilex. In the present paper, it is not supported that I. kudingcha should be referred to I. kaushue S. Y. Hu because of the existence of fingered trichomes on the fruit epidermis in I. kaushue but it is supported that I. pentagona S. K. Chen, Y. X. Feng et C. F. Liang is a new speices because of the remarkable difference of characters of fruit coats between I. pentagona and I. kudingcha.
    Related Articles | Metrics
    STUDYS ON THE POLLEN MORPHOLOGY OF LIMONIUM FROM SHANDONG
    HUANG Yong, GUO Shan-li, QIAN Guan-ze, JIAO Rui-hua
    Bulletin of Botanical Research    2001, 21 (1): 51-52.  
    Abstract255)      PDF(pc) (174KB)(163)       Save
    This paper is the first report of the morphologia characteristics under SEM of three species and one variety of Limonium Mill.in Shandong.The taxonomic significance of these characteristics is discussed. The results showed that the species of Limonium can be classified on the basis of the morphology, size and exine sculptuer of pollen grains.
    Related Articles | Metrics
    ANATOMY AND HISTOCHEMISTRY OF THE SEEDS OF ROSCOEA PURPUREA
    TANG Yuan-jiang, LIAO Jing-ping
    Bulletin of Botanical Research    2001, 21 (1): 53-56.  
    Abstract221)      PDF(pc) (284KB)(152)       Save
    The results of the anatomy and histochemistry of the seeds of Roscoea purpurea show that the seed consists of aril, seed coat, perisperm, endosperm and embryo. The seeds are incompletely packed by the aril which comprises 4~5 layers of parenchymatous cells. The seed coat can be divided into exotesta, mesotesta, and endotesta. The exotesta consists of one layer of epidermal cells that their walls are obviously thickened. The mesotesta includes hypodermis(with one layer of cells), translucent cell layer(with one layer of cells) and pigment cell layer with 3~4 layers of pigment cells. The cells of the hypodermis and pigment cell layer are filled red-brown coloured pigment. The endotesta comprises one layer of brick-shaped parenchymatous cells with partially thickened. Micropylar collar, operculum and caruncle-like structure are differentiated in the micropylar region. The micropylar collars belong to homomorphic type. Operculum is without sclerotic cell. A cap appears in the endotesta of the chalazal region and is filled with a group of chalazal pigment cells. The outline of the pigment cell group is a crescent. The perisperm has two parts. The perisperm cells with flat walls is filled up with starch grains. The endosperm cells mainly contain proteins, but also contain a few lipids. Their cell walls are obscure. The embryo is bar-shaped, its both ends slightly swell. The embryo cells contains a great number of lipids, some proteins and ploysaccharides.
    Related Articles | Metrics
    EFFECT OF ARTIFICIAL WASTEWATER ON THE MORPHOLOGY AND ANATOMICAL STRUCTURE OF KANDELIA CANDEL SEEDLINGS
    MIAO Shen-yu, CHEN Gui-zhu
    Bulletin of Botanical Research    2001, 21 (1): 57-61.  
    Abstract210)      PDF(pc) (315KB)(242)       Save
    A greenhouse experiment was performed for one year to research the effect of wastewater on Kandelia candel seedlings. Artificial seawater was used as the control, three different strengths of artificial wastewater had been discharged into the simulated system in fixed time and quantity. Results showed that the Kandelia candel seedling had a high potential resistance to artificial wastewater by changing its physiological activities and microstructers in all plant organs to adapt the pollutants within wastewater, but the growth of root was restricted with wastewater to some extent.
    Related Articles | Metrics
    FORMATION AND DEVELOPMENT OF INTERNAL EMBRYONIC CELLS IN CALLUS OF RICE [ ORYZA SATIVA L.]
    LI Zhong-kui, LIU Cheng-yun, Liu Wen-ping
    Bulletin of Botanical Research    2001, 21 (1): 62-64.  
    Abstract235)      PDF(pc) (227KB)(206)       Save
    Surface embryonic cells, which develop into embryoids, are gradually surrounded by active-divided non-embryonic cells and become internal embryonic cells in callus. Internal embryonic cells have the same morphology and structure with surface embryonic cells under light microscope. But there are no layer[s] of cells with the highest content of starch grains around internal embryonic cells. Internal embryonic cells divide actively to produce pro-rootcaps and eventually break up the callus to produce roots at any directions of callus. By inference, we suggest that the lost of ability of callus to differentiate partially be concerned with the unactive-division of embryonic cells and active-division of non-embryonic cells.
    Related Articles | Metrics
    STUDY ON INDUCTION AND PROPAGATION OF CALLUS IN TISSUE CULTURE OF COMMON BUCKWHEAT
    HAO Jian-Ping, ZHANG Jiang-Tao
    Bulletin of Botanical Research    2001, 21 (1): 65-69.  
    Abstract207)      PDF(pc) (211KB)(220)       Save
    In this paper, it were studied that effect of H 2O 2 and HgCl 2 solution to sterilization of common buckwheat seeds and phytohormone affect to induction and propagation of callus. Contamination rate were from 0 to 6.2% and germination rate were above 92% after seeds of 5 varieties (Yu3-3, Limadao, Pujiang, Longshan and Fuyuanhonghua) were sterilized with 10% H 2O 2 solution for 150min.It was applicable to seeds of 3 varieties (8621, B-Dali and America) to sterilize with 0.1% HgCl 2 solution for 12min, contamination rate of seeds were 0 and germination rate were from 56.1% to 68.7%. On media supplemented with 0.5~4.0mg/L 2, 4-D, cotyledon and hypocotyl explants from sterilized seedlings were dedifferentiated and calli were formed. Use of BA was very importent in medium containing 2, 4-D, it was helpful for propagation of callus and was unfavourable for differentiation of roots.
    Related Articles | Metrics
    INDUCTION OF EMBRYONIC CALLUS AND FORMATION OF EMBRYOID RELATED TO ENDOGENOUS IAA AND ABA IN CELERY
    ZHANG Dong-xiang, ZHANG Chong-hao, MEI Ling, LI Jie-fen
    Bulletin of Botanical Research    2001, 21 (1): 70-73.  
    Abstract232)      PDF(pc) (187KB)(203)       Save
    Using hypocotyl of sterile celery seedling, induce conditions of embryonic callus were studied in this paper. Embryoid was obtained from the embryonic callus, and effect of Co 2+ on formation of the embryoid and levels of endogenous IAA and ABA were studied. The results showed that the competence of formation of the callus and embryonic callus from hypocotyl of celery decreased with its relative position from leaf end to apex of root. 2, 4-D was favored to induction of embryonic callus. There was no significant effect of casein hydrolysate on expression of embryonic competence in celery. Endogenous levels of IAA and ABA in the cultures were reduced and induce rates of embryoid was increased by Co 2+ during embryoid formation of celery. There were one peak value of IAA levels and two peak values of ABA levels in the culture of control groups. The change of ABA levels in the culture of treatment groups was simular to control, but there was not peak value of IAA in the treatment. It was infered that there were difference effects Co 2+ inhibitation mechanism on between IAA and ABA in the formation of celery embryoid.
    Related Articles | Metrics
    PRELIMINARY STUDY ON HYBRID CHROMOSOME COMPOSITION AND RELATIONSHIP IN SYMMETRIC HYBRIDIZATION BETWEEN TRITICUM AESTIVUM AND INTERGENERIC GRASSES
    XING Mei-qing, XIA Guang-min, CHEN Hui-min
    Bulletin of Botanical Research    2001, 21 (1): 74-78.  
    Abstract254)      PDF(pc) (288KB)(289)       Save
    The protoplasts of three intergeneric grasses ( Psathyrostachys juncea, Bromus inermis and Bromus willdenowii Kunth) were fused with wheat ( Triticum aestivum. Jinan 177) protoplasts by PEG method respectively. The fusion products of wheat and grasses were analyzed with morphological inspection, isozyme analysis, 5S rDNA spacer sequence analysis. Parts of hybrid clones were taken for chromosome examination. Different chromosome compositions in calli were found between the fusion combinations of different phylogenetical distance, while microchromosomes or chromosome fragments were always present. The reason for this result and the failure of plant regeneration in this experiment is discussed.
    Related Articles | Metrics
    A RESEARCH ON FAST MULTIPLYING PRUNUS AMYGDALUS STOKES (AMYGDALUS COMMUNIS L.)
    Ismail·Barat, Kadi r·Abdulrashid, YANG Zhuo-Meng
    Bulletin of Botanical Research    2001, 21 (1): 79-83.  
    Abstract216)      PDF(pc) (229KB)(197)       Save
    A Research on fast multiplying of Prunus amygdalus from its embryos in MS culture with 7 different NAA concentrations was carried out by using Tissue Culture Technique. The result showed that embryos of P. amygdalus can produce new plants in all these 7 different cultures and can be cultured continuously three times, multiplying rate reaches 125%~210 27%.
    Related Articles | Metrics
    KARYOTYPE ANALYSIS OF ALOE FEROX MILLER AND ALOE ARBORESCENS MILLER
    LIANG Xiu-mei, BO Xiu-ling
    Bulletin of Botanical Research    2001, 21 (1): 84-86.  
    Abstract273)      PDF(pc) (213KB)(191)       Save
    Aloe ferox Miller and Aloe arborescens Miller belong to Liliaceae Aloe (genus). In this paper, the chromosome were observed by routine root tip method.The results shows that the chromosome number of Aloe ferox and Aloe arborescens were 2n=14. The karyotype of Aloe ferox Miller is K(2n)=4sm+10st, and the karyotype of Aloe arborescens is K(2n)=4sm+10st, by Levan's crierion of chromosome karyotype and belong to "4C"and "3C"of stebbins karyotype symmetry.The chromosome composition of relative lenth were 2n=14=6L+2M 2+6S. There are not acrocentric chromosomes and any satellite chromosome being observed.The chromosome constitution of Aloe ferox Miller and Aloe arborescens Miller are four long and three short.According to the karyotype, we considered chromosome basic number as x=7.
    Related Articles | Metrics
    MICROFILAMENTS AND MICROTUBULES IN POLLEN TUBE
    GAO Xin-qi, WANG Xiu-ling
    Bulletin of Botanical Research    2001, 21 (1): 87-89.  
    Abstract465)      PDF(pc) (134KB)(439)       Save
    Advances of some important issues in the studies of microfilaments (MFs) and microtubules(MTs) in pollen tube were reviewed, including distribution of MFs and MTs in pollen tube, functions of MFs and MTs in protoplasmic streaming, organelles moving and growth of pollen tube. Some important aspects of these issues were discussed as well.
    Related Articles | Metrics
    STUDY ON THE RELATION BETWEEN MORPHODIFFERENTIATION AND LIVING ENVIRONMENT OF RHODIOLA SACHALINENSIS
    ZHOU Fu-jun, YAN Ting-fen, YAN Xiu-feng, WANG Qin, ZU Yuan-gang
    Bulletin of Botanical Research    2001, 21 (1): 90-96.  
    Abstract229)      PDF(pc) (277KB)(123)       Save
    The number of plant division, plant height, base diameter, leaf length and leaf width of Rhodiola sachalinensis from 14 natural populations collected in Pingdingshan of Heilongjiang Province and Changbai Mountain of Jilin Province were analysised to study the morphological variation mechanism of natural populations. Variance analysis of single factor indicates that there are significant differences in morphological indexes except branch number in 14 natural populations. Multiple comparison analysis of 4 characters shows that morphological characters in different habitats have differentiated in some degree. Cluster analysis for 14 natural populations shows that there are obvious correlations between morphological variety of Rh. sachalinensis and their habitats.
    Related Articles | Metrics
    STUDY ON THE EARLY STATE OF ONTOGENY OF EURYALE FEROX SALISB
    LIU Mei, WANG Chen, LIU Ming-yuan
    Bulletin of Botanical Research    2001, 21 (1): 97-99.  
    Abstract247)      PDF(pc) (225KB)(246)       Save
    The early stage(from heart shape embryo to seedling) of ontogeny of Eurgale ferox Salisb.is presented in this paper. The embryo from heart stage to mature stage is expressed as the shoot apex develops firstly and the root apex develops very weakly, at the nodes of lst and 2nd plumular leaves some nodal root primordia develop before radicle and there is no obvious differentiation in radicle.The characters expressed from seed embryo to seedling are as follows. When the seed germinates, 4 polyseriate branched hairs arise from the end of the very short hypocotyl. At seedling stage, nodal roots develop before radicle and the growth of the radicle ceases only about 1mm long. These characters of developmental sequence on organogeny are very peculiar to anqiosperms and should be primitive in phylogeny. The hypocotyl hair may be is a general character in aquatic or hygrophytic angiosperms and a indicative character to differentiate radicle and hypocotyl.
    Related Articles | Metrics
    A STUDY ON WATER POTENTIAL CHARACTERISTICS IN FOUR TREE SPECIES IN LOESS REGION
    LI Hong-jian, WANG Meng-ben, CHAI Bao-feng
    Bulletin of Botanical Research    2001, 21 (1): 100-105.  
    Abstract224)      PDF(pc) (270KB)(195)       Save
    By the method of pressure chamber we monitored the diurnal change of water potential (Wp) of small branch in 4 tree species ( Caragana korshinskii, Populus hopeiensis, Populus beijingensis and Populus simonii) once a month. The correlation between Wp and temperature (T), light intensity (L), relative humidity (RH) and leaf natural water content (LWC) were analyzed respectively;the correlation between Wp in the morning and soil water content was studied. The results were as follows:The diurnal change curve of water potential in four species is parabolic shape. The average value of potential in the species in growing season was respectively: Caragana korshinski (-1.569 MPa), Populus hopeiensis (-1.030 MPa), Populus beijingensis (-0.993 MPa)and Populus simonii (-0.971 MPa). The order of fitness degree between Wp and single climatic factor was L, T then RH. The correlation between Wp in the species and the products (L*T) of light intensity and temperature, the quotient (L/RH) of L and RH was more significant than with that of single climatic factor (T, L, or RH), respectively. The correlation between Wp and LWC is not very significant. The model type of Wp in predawn with soil water content(X)was:Wp=Ae -BX. Soil water moisture put more influence on predawn water potential 4 tree species.
    Related Articles | Metrics
    PHOSPHORYLATION OF SOY PROTEIN
    SUN Xue-Bin, SONG Dan-Feng
    Bulletin of Botanical Research    2001, 21 (1): 106-109.  
    Abstract231)      PDF(pc) (173KB)(379)       Save
    This review is related to several novel chemical phosphorylation methods for improvement of the functionalities of soy protein isolate. It provides a good way to utilize the resources of the soybean.
    Related Articles | Metrics
    ANALYSIS OF VOLATILE OIL OF ARALIA CONTINENTALIS
    DU Feng-guo, JIANG Bing-wen, HU Rong
    Bulletin of Botanical Research    2001, 21 (1): 110-112.  
    Abstract328)      PDF(pc) (135KB)(133)       Save
    In this paper, compositions of the volatile oil in the root of Aralia continentalis Kitag were studied first by GC-MS-DS, and 16 kinds of compounds that account for 92.88 per cent of total content were identified. The main composition of these compounds is α-pinene. Mass fraction of α-pinene is above 50 per cent. At the same time, the volatile oil of root also contains β-pinene and copaene etc.
    Related Articles | Metrics
    STUDY ON THE METHOD FOR DETERMINATION OF SALIDROSIDE BY HPLC
    WANG Yang, ZHANG Pu, YU Tao, WANG Hua-tian, YAN Xiu-feng
    Bulletin of Botanical Research    2001, 21 (1): 113-115.  
    Abstract222)      PDF(pc) (143KB)(204)       Save
    The determination of salidroside in roots of Rhodiola sachalinensis by HPLC were studied. The extracted conditions of salidroside using ultrasonic extraction method from Rhodiola sachalinensis to prepare assay sample were systematacially discussed. The optimal conditions were distilled water as the solvent, 60℃ as the extracted temperature and 30 min as the extracted time.
    Related Articles | Metrics
    GENETIC DIFFERENTIATION OF LEYMUS CHINENSIS POPULATIONS IN SONGNEN GRASSLAND
    CUI Ji-zhe, ZU Yuan-gang, NIE Jiang-li, WANG Gui-ling
    Bulletin of Botanical Research    2001, 21 (1): 116-125.  
    Abstract191)      PDF(pc) (384KB)(216)       Save
    Genetic diversity and genetic differentiation of 11 Leymus chinensis populations with 2 types of grayish green and yellowish green in Songnen grassland were studied by allozyme analysis. There were differences in the allele frequency, non-equilibrium loci, A. P. He and fixation index between 2 types. The A. P. and He of yellowish green type were lower than those of grayish green type. The fixation index was less than zero in yellowish green type, and that was greater than zero in grayish green type. The difference of fixation index between the 2 types was mainly on the difference at DIA-1, PGM, SKD, and ACP loci. The genetic differentiation between the 2 types was mainly on the differentiation at ADH, DIA-2, and PGM loci. There was no correlation between the geographical distance and the genetic distance.
    Related Articles | Metrics
    ANALYSIS OF GENETIC VARIATION WITHIN AND AMONG BETULA PLATYPHYLLA PROVENANCES AND PROVENANCE DIVISION USING RAPD MARKERS
    JIANG Jing, YANG Chuan-ping, LIU Gui-feng, LIU Yu-xi, REN Xu-qin
    Bulletin of Botanical Research    2001, 21 (1): 126-130.  
    Abstract207)      PDF(pc) (229KB)(191)       Save
    RAPD was used to detect genetic variation among 17 provenances, including 152 individuals. 233 loci were amplified using 14 random primers. The differentiation of the percentage of polymorphic loci among different provenances was evident, ranging from 20.17% to 32.19%, among which there were Maoershan provenance and Qingyuan provenance with the highest PPL and Chaoer provenance with the lowest PPL. Most of the variation (56.47%) occurred among individuals within provenances, and 43.53% was attributed to differences among provenances. The dendrogram of genetic relationship was constructed according to genetic distances among provenances. The result revealed that the provenances from Northeast and others from North and Northwest were respectively clustered into different groups. At the same time, provenance division was completed on the basis of geographic climatic factors and genetic distances.
    Related Articles | Metrics
    STUDIES ON PEROXIDASE ISOZYME OF VICIA L. IN NORTHEAST CHINA
    SONG Zhi-wen, CAO Jun, YANG Guang
    Bulletin of Botanical Research    2001, 21 (1): 131-135.  
    Abstract230)      PDF(pc) (228KB)(193)       Save
    By means of polyacrylamide gel electrophoresis, peroxidase isozyme of Vicia L. Species distributed in northeast of china was analysed. In conjunction with the works of morphology, cytology and population investigation the results showed that molecular data were in general in agreement with the studies of morphology and cytology. Taxonomic treatments were given to some controversial species and origins of some multiploids were guessed.
    Related Articles | Metrics
    RFLP ANALYSIS OF PAULOWNIA PLANTS
    MA Hao ZHANG, Dong-mei, LI Rong-xing, DENG Hua-ping
    Bulletin of Botanical Research    2001, 21 (1): 136-139.  
    Abstract233)      PDF(pc) (187KB)(178)       Save
    RFLPs (Restriction Fragment Length Polymorphisms) was used to analysis chloroplast DNA of 15 paulownia species. Based on the estimated values of genetic distance, the dendrogram was constructed using UPGMA (Unweighted pair group method of arithmetic clustering), and three groups can be classified. Since most of the values of genetic distance are over 0.70, especially for P. taiwaniana Hu et chang and P. kawakamii Ito, which is 1.00, close relationship among the species could be concluded. At the end of this paper, the taxonomy for some of the paulownia species was discussed.
    Related Articles | Metrics
    STUDIES OF AQUATIC MACROPHYTES IN SALINE-ALKALINE PONDS
    ZHAO Wen, DONG Shuang-lin, SHENTU Qing-chun, ZHANG Zhao-qi, DAI Yun-di
    Bulletin of Botanical Research    2001, 21 (1): 140-146.  
    Abstract208)      PDF(pc) (315KB)(262)       Save
    The species composition, productivity and its influence factors of aquatic macrophytes were estimated in saline-alkaline ponds in Zhaodian Fish Farm, Gaoqing County, Shandong Province, during from April to September in 1998.The results indicated that 12 species of the large aquatic plants were collected in this localities, common species were Potamogeton crispus, Zannichellia palustris, Nelumbo nucifera, Ceratophyllum demersum [Emergent vascular plants]; Phragmites communis, Scirpus yagara and Typha orientalis [Submerged vascular plants]; Lemna minor [Floating vascula plants] and Chara braunii [Macrophytic algae]. Simple of species composition and prominent of dominant species are marked characteristics of aquatic macrophytes in saline-alkaline ponds. The transparency and pH values of ponds with grass were higher than that of ponds without grass, and biomass and Chla of phytoplankton and nutrients lever in the former ponds lower than that of the latter. The grass primary production of P. crispus, Z. palustris and C. braunii were 1.70、1.56 and 1.50 mgO 2 L -1 h -1 g -1, under the condition of light intensity 7, 200 lx and water temperature 28~30℃. Apart from light, temperature and pH, the primary productivity of aquatic macrophytes were influenced by salinity and alkalinity. The salinity that the primary production of P. crispus and Z. palustris were highest are 3 g l-1, the suitable alkalinity of the former was 6.69 mmol L -1, and that of the latter was 3.82 mmol L -1. The absorption rates to NH 4-N of P. crispus, Z. palustris, C. demersum and L. minor were similar, and that of to PO 4-P are as follow: Z. palustris > P. crispus > L. minor > C. demersum. The features of Macrophytes in saline water bodies, production of P. crispus and its influence factors and how to avoid the harmful of aquatic macrophytes in fish ponds and the relationship between macrophytes and phytoplankton were discussed.
    Related Articles | Metrics
    STUDIES ON ECOLOGICAL FIELD OF QUERCUS LIAOTUNGENSIS FOREST, DONGLING MOUNTAIN
    CONG Pei-tong, YU Jing-hua, ZU Yuan-gang
    Bulletin of Botanical Research    2001, 21 (1): 147-151.  
    Abstract223)      PDF(pc) (288KB)(152)       Save
    According as the principle of energetics, a series of computing method on plant ecological field was brought forward to research the species' interaction of Quercus liaotungensis Forest, Dongling Mountain, Beijing. The effect radius of ecological field on the population of Quercus liaotungensis was decided as 15 meters and the ecological interference of Fraxinus rhynchophylla and Lespedeza bicolor population has obvious heterogeneity.
    Related Articles | Metrics
    SPECTRUM ANALYSIS ON INDIVIDUAL GROWTH PROCESS OF BETULA PLATYPHYLLA FROM NORTH OF SHANXI PROVINCE
    ZHANG She-qi, ZHANG Wen-hui, LEI Rui-de, QIAN Ke-hong
    Bulletin of Botanical Research    2001, 21 (1): 152-156.  
    Abstract224)      PDF(pc) (216KB)(181)       Save
    The individual growth dynamics of Betula platyphylla Suks population in north of Shaanxi province have been analyzed at different levels according to concordant spectrum principle and method of spectrum analysis. The result shows that the growth of the height, breast height diameter and volume of Betula platyphylla population individuals are not suited to the model of the Logistic regulation of general plant growth. The height growth regulation coincide with Logistic only after 20 years old;the growth of breast height diameter is totally different from Logistic model;however, the volume growth suits to the Logistic model. The spectrum analysis is an efficient method to analyze the growth process of woody plant compared with Logistic model.
    Related Articles | Metrics
    QUANTIZING ANALYSIS ON DYNAMIC OF AGE-CLASS STRUCTURE OF ARBOR POPULATIONS IN QUERCUS LIAOTUNGENSIS FOREST
    ZHAO Ze-hai, CONG Pei-tong, ZU Yuan-gang, ZHANG Wen-hui, CHEN Bai-lin
    Bulletin of Botanical Research    2001, 21 (1): 157-160.  
    Abstract259)      PDF(pc) (188KB)(186)       Save
    In this paper, the age-class structure of arbor populations in sample belt were described by fractal dimensions. Dynamics of age-class structure, sensibility of interfering conditions and change of stabilization, decline and increase of population's age-class structure were studied. The result show: Quercus liaotungensis always is dominant popuplation and its individuals of different age-class have wider capacity of spatial distribution at different parts in sample belt. The age-class of Fraxinus rhynchophylla tends to complex but the one of Acer mono tends to simple along the simple belt. All of arbor populations belong to younger increasing type of age-class structure. For different arbor populations, the value of increase ( Vpi) and the sensibility of interfering conditions have larger variance and display approximatively negative relation with quantity of age-class of this population and spatial distribution at different parts in sample belt.
    Related Articles | Metrics
    Taxonomy of the Genus Illicium Linn
    LIN Qi
    Bulletin of Botanical Research    2001, 21 (2): 161-174.  
    Abstract446)      PDF(pc) (410KB)(380)       Save
    A taxonomic revision of the genus Illicium is presented based mainly of herbarium studies involving more than 10 thousand speciemens from 121herbaria worldwide, along with field observations and morphological studies. Variation in morphological character of flower buds and tepals is used as the basis of an amended supraspecific classification, with 2 sections, viz.: Illicium sect. Illicium, consisting of 9 species and 1 subspecies and characterized by flower buds ovoid, and tepals oblong, elliptic, lanceolate to narrowly ligulate, and flat;and Illicium sect. Cymbostemon, consisting of 25 species, 2 subspecies and 1 variety with flower buds sphaeroid, and tepals broadly ovate to orbicular, and concave. Illicium sect. Impressicosta Law & Q. Lin is regarded as a new synonym of Illicium sect. Illicium, Illicium subgen. Cymbostemon (Spach) Law & Q. Lin is regarded as a new synonym of Illicium sect. Cymbostemon (Spach) A. C. Smith, and lectotypes of Illicium henryi Diels and I. cambodianum Hance are designated. Taxonomic character, a key to the taxa, geographical distribution, specimens examined, and classification notes are provided for each taxon in this paper.
    Related Articles | Metrics
    Neo-Taraxacum Y. R. Ling & X. D. Sun, Genus novum et Addenda Subfamiliae Liguliflorae, Familiae Compositarum
    LING Yeou ruenn, SUN Xiu dian
    Bulletin of Botanical Research    2001, 21 (2): 175-176.  
    Abstract450)      PDF(pc) (106KB)(188)       Save
    Related Articles | Metrics
    NEW TAXA OF FAGACEAE IN SHAANXI PROVINCE
    ZHANG Wen hiu, KANG Yong xiang, LU Zhi jun
    Bulletin of Botanical Research    2001, 21 (2): 177-181.  
    Abstract263)      PDF(pc) (181KB)(236)       Save
    To gain a clear idea of classification and distribution of Fagaceae in Shaanxi province, a lot of field investigations and indoor studies on the specimens have been accomplished.Some new taxa were reported including three new varieties, Quercus aliena Bl. var. taibaiensis W. H. Zhang, Quercus aliena Bl. var. shaanxiensis W. H. Zhang, Quercus glandulifera Bl. var. stellatopilosa W. H. Zhang;two new combinations, Cyclobalanopsis fargesii (Franch.)W. H. Zhang, Cyclobalanopsis hypargyrae (Seem.)W. H. Zhang and three new distribution records in Shaanxi province, Lithocarpus polystachyus Rehd. Quercus griffithii Hook f. et Thoms, Quercus monnula Y. C. Hsu et H. W. Jen.And the name confusion of Q.glanduliferaBl.was clarified.
    Related Articles | Metrics