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中文
Table of Content
15 September 1995, Volume 15 Issue 3
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A REVISION OF THE GENUS RANUNCULUS IN CHINA (Ⅱ)
Wang Wen-tsai
1995, 15(3): 275-329.
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NEW PLANTS FROM NORTH-EAST CHINA
Fu Pei-yun, Wang Wei, Sun Qi-shi, Li Chi-yun, Fang Chen-fu, Chen You-an, Liu Shu-zhen
1995, 15(3): 330-334.
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SOME NEW RECORDS OF BACILLARIOPHYTA IN CHINA
Yang Ji-gao
1995, 15(3): 335-337.
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This Paper records 3 species and 3 varieties of
Bacillariophyta
from Anhui Province.All of these diatoms are new records in China.They are
Pinnularia schweinfurthii
(A.S.)Pair,
Nitzschia sinuata
var.delognei, H.Lange-Bertalot,
Cymatopleura solea
var.apiculata(W.Smith)Rafs,
stenopterobia intermedia
Lewis,
Surirella tenera
var.
nervosa
A.Schmidt,
S. pantocsekii
Meister.
A NEW VARIETY OF
Pinus densiflora
SIEB.ET ZUCC
Zhang Shu-jie, Li Cheng-xiang, Yuan Xiao-ying
1995, 15(3): 338-341.
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SOME NEWRECORDED PLANTS OF SPERMATOPHYTE FROM HENAN
Zhu Chang-shan
1995, 15(3): 342-348.
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In this paper 6 genera, 29 species. 1 subspecies and 6 varieties are reported as new records in Henan province. The genera new to Henan are
Glaux
.
Cortusa
,
Lomatogonium
.
Biondia
.
Sinojohnstonia
and
Maianthemum
.All the voucher specimens of the present study are preserved in the Herbarium of Henan Agricultural University (HNAC).
STUDIES ON THE TAXONOMY OF THE GENUS
Torreya
Kang Ning, Tang Zhong-xun
1995, 15(3): 349-362.
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In the present thesis, the taxonomic hitory of the genus
Torreya
was reviewed.Based pn external morphological features and evidence from other aspects, thetaxonomy of
Torreya
was studied. Six species, two varieties and eleven cultivars were recognized in the genus
Torreya
. The present revision contains one new variety (
T. grandis
var.
jiulongshanensis
. one new combination (
T. fargesii
var.
yvnnanensis
)and sts new cultivars. The authors support the viewpoints that
Torreya
species should be separated into two sections according to the rumination of the albumenin the of nuts, and
Torreya
should be the most advanced genus in the family Taxaceae.
SEED MORPHOLOGY AND ITS TAXONOMIC SIGNIFICANCE OF
Calystegia
R BR.IN CHINA
Wen Xue sen, Li Ai guo, Chen Han bin
1995, 15(3): 363-367.
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The seeds of five species of
Calystegia
(
C. dahurica
,
C.hederacea
,
C.pellita
,
C.sepium
,
C.soldanella
)in China have been studied under stereoscopic microscope and electron scanning microscope. The results indicate that the seeds are different in size, hilum, ornamentation and protuberance of seed coat, and can be divided into two types:sepium type and pellita type. The sepium type including the first three species is smaller and verrucate, the verrucate protuberance is peaklike, linked together or alone, and has developed from extremely protroding of the intercellular walls of several adjacent testa cells, the ornamentation of seed coat is reticulate; the Pellita type including the other two species is larger and without verruca, and the seed coat ornamentation is ruminate.The morphological characteristic of the seeds are different, and can be used as taxonomic evidence of this genus. The authors consider that the two types of seeds can be used as the foundation for dividing the genus into two section, and the sepium type may be more evolutionary while the pellita type is primitive.
BIOSYSTEMATICAL STUCIES ON VICIA L. IN NORTHEAST CHINA Ⅶ KARYOTYPE ANALYSIS ON V.UNIJUCA AND ITS ALLIED SPECIES
Wang Hao you, Pei Yan long, Liu Xiang-jnn, Li Rui jnn, Yasuhiko Endo
1995, 15(3): 368-372.
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STUDIES ON THE DEVELOPMENT OF GAMETOPHYTES OF FERNS FROM NORTH-EASTERN CHINA Ⅵ.SINOPTERIDACEAE
Bao Wen mei, Wang Quan xi, Anr Chih wen
1995, 15(3): 373-376.
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The spore is tetrahedral, trilete.The patterns of spore germination is of Vittaria-type (nayar 1971). Generally the germ filaments develop 2-12cells long, uniseriate, or multiserite. The prothalli are naked and cordate.The sex organs are rather large.It seems that these are common primitive characteristics of the family.The prothallial development is the Adiantum-type, or Ceratopteris-type (Nayar 1971) or the mediate between the two types. It implies that the prothalli are more variable in the development of the taxon, and also reflect the characteristics of the family.
STUDY ON DEVELOPMENTAL MORPHOLOGY OF ORYCHOPHRAGMUS VIOLACEUS ROOT SYSTEM
Wei Li jun, Liu Xiao hui, Liu Ming yuan
1995, 15(3): 377-381.
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Orycllophragmus violaceus
is a biennial herb, its root system is a tap root system tvith secondary structure.The primary xylem of man root is diarch and secondary xylem is well developed.In lateral root, there is same structure with the main root.Activity of cambium is variable with the seasons, thus a growth ring can be seen in the cross section. In winter, the absorb roots are still alive and there isn't any overwintering root primordium.The old absorb roots are replaced by the new ones continuously, and we can't see periodicity changes obviously. The amount of starch in the root changes with seasons and developmental stages.The two peaks of starch accumlation appear before winter comes and after the plant turns green in the second year. Different seeding date can influence the accumulation of starch and the plant turning green in the spring. Study on developmental morphology of
O.violaceus
root system not only possesses theoretical significance for the understanding ofits root system completely and correctly, but also guides its cultivation and managment.
MORPHOLOGY AND ANATOMY OF BOSCHNIAKIA ROSSICA TUMOUR BODY
Hu Bao zhong, Li Gui qin, Gui Ming zhu, Zhang Yan ping, Li Jing
1995, 15(3): 382-385.
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Tumour-body of Bosclmiakia rossica is white or dark brown. It differed in size. Young tumour-body is ball, after grown, is irregular-lump. The characteristics of anatomy is as follow. The parasitic root was formed at linking up host root.A number of parenchyma cells and spiral thickening tracheid entered xylem and linked up root xylem. The phloem of parasitic root linked up root phloem and short of fiber.There was hypha in 1-10layers cell of surface in young tumour-body base. Grown tumour-body formed periderm, vascular bundle and a lot of pith cells. The top of tumour-body formed shoot apex from bud primordium, and differentiated growing point, leaf primordium. young leaf and axillary bud primordium.Young leaf didn't differentiated palisade tissue and spongy tissue and young leaf was not developed, there was not chloroplast in leaf.
RESEARCH AND APPLICATION OF RI RLASMID IN PLANT GENE ENGINEERING
Liu Wei-hua, Xu Xiap-ling, Jiang Jing, Xue Li-ping, Li Ji-lin
1995, 15(3): 386-390.
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Character of Ri-plasmid, molecular mechanism, and application in plant gene engineering with Ri-plasmid as a new vector of using to transform plant cell, the method of Ri-plasmid-mediated genetransfer of plant were described. And perspectives for application of Agrobacterium rhizogenes in the other fields such as medicine and/or food production, and wood breeding and proliferation were introduced in this review.
ANALYSIS OF RESTRICTION ENZYMES OF CHLOROPLAST DNA IN TOMATO VARIETIES WHICH HAVE DIFFEERENT RESISTANCE TO TOBBACCO MOSSIC VIRUS
Huang Yong-fen, Wang Qing yin, Sun De jun, Fu Gui rong, Wang Hat ting, Xing Yi, Cheng Zhen-qi
1995, 15(3): 391-396.
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We analyze ct-DNA of tomato which is resistant and sensitive to TMV with restriction enzyme. Our electrophoretogram of BamHI, EcoRI. Pst I is similar to other report.Molecular weight of ct-DNA is 156. 9kb, it is similar to others' study.We find some difference in BamHI EcoRI, PSt I electrophoretogram between resistant group and sensitive group. We guess this maybe the alternation of base sequence or insertion or deletion of short DNA sequence. We also infer that nucleus genome and chloroplast genome together decide the resistance of plant to Tobbacco Mossic Virus.
THE CLUSTERING AND ORDINATION OF
Quercus variabilis
ROREST IN MANGHE NATURAL CONSERVATION, SHANXI
Mi Xiang cheng, Zhang Jin tun, Zhang Feng, Shang guan Tie hang
1995, 15(3): 397-402.
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In this paper, the
Quercus variabilis
forests in Manghe Natural Conservation were studied using methods of hierarchical classification, polar ordination(PO), principal component analysis(PCA), and correspondence analysis(CA).As a result, the
Quercus variabilis
forests were divided into five associations. Furthermore, the analysis of PO, PCA and CA reflected the continuous changes of vegetation and the environmental variation.
THE STUDY ON PEROXIDASE ISOENAYME OF 17 CULTIVARS OF CHIMONANTHUS PRAECOX
Chen Zhi-xiu
1995, 15(3): 403-411.
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The isoperoxidase of 17 cultivars of
Cllimonanthus praecox
(Linn.) Link were analysed by means of pozyarclamid gel electrophoresis. The results indicated that the isoperoxidase patterns were remarkably different among the varieties had the respective characteristic isoperoxidase pattern on the basis of the band number, Rf, activity and width. Moreover, the resemblance of the isoperoxidase patterns of 17 cultivars of
Chimonanthus praecox
(Linn.)Link were analysed with the methods of arranging and clustering analysis.The results indicated that the isoperoxidese patterns could be analysed comprehensively and some one-sideness could be avoide 4. This can provide new bases and tools for distinguishing and identifing quantitatively the cultivars of
Chimonanthus praeeox
.
A REVISION OF CHINGYUNGIA CEN
Ai Tie-min, Yang Lian-ju, Tian Jian-jun
1995, 15(3): 412-412.
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