May 1984, Volume 26 Issue 5

 

          Research Articles
On the Discovery of Macrofossil Algae from the Late Sinian in the Eastern Yangtze Gorges, South China
Author: Zhu Wei-qing and Chen Meng-e
Journal of Integrative Plant Biology 1984 26(5)
      
    
Abstract (Browse 1821)  |  Full Text PDF       
Studies on Polypodine B of Murdannia triquetra Wall Br邦ckn
Author: Wang Guo-liang, Hou Song-Sheng, Mi Liu-si, Wang Jin-feng, Yuan Yan-ming and Xia Ke-min
Journal of Integrative Plant Biology 1984 26(5)
      
    
Abstract (Browse 1779)  |  Full Text PDF       
The Chemical Constituents of the Excretion of the Pinus yunnanesis Fr Leaf
Author: Mu Quan-zhang and Lu Jian-rong
Journal of Integrative Plant Biology 1984 26(5)
      
    
Abstract (Browse 1744)  |  Full Text PDF       
In Vitro Induction of Haploid Plantlets from Unpollonated Ovaries of Highland Barley
Author: Gu Zhu-ping and Zheng Gun-chang Cheng Kuo-chang
Journal of Integrative Plant Biology 1984 26(5)
      
    
Abstract (Browse 1634)  |  Full Text PDF       
The Phenomenon for Somatic Association of Homologous Chromosomes in Mitotic Metaphase of Cunninghamia lanceolata Lamb Hook
Author: Chen Ke-yong
Journal of Integrative Plant Biology 1984 26(5)
      
    
Abstract (Browse 1729)  |  Full Text PDF       
Some Paleozoic Relics from the Late Triassic in Western Hubei, China
Author: Zhu Jia-nan, Hu Yu-fan and Meng Fan-song
Journal of Integrative Plant Biology 1984 26(5)
      
    This paper deals with a few fossil plants of the Jiuligang Formation found ill Jingmen-Dangyang Basin, western Hubei, China. Of which a few are related to paleozoic taxa, such as Compsopteris laxivenosa sp. nov. and C. xiheensis (Feng) comb. nov., Besides those, Paradrepanozamites dadaochangensis Chen, emend, nov. and P. minor sp. nov. are described. The geological age of the Jiuligang Formation is assigned to Carnic to early Noric.
Abstract (Browse 1693)  |  Full Text PDF       
On the Problems of Zonation of the Vegelation in the Transverse Mountain Area
Author: Li Shi-ying, Wang Jin-ting, Li Bo-sheng and Li Yang
Journal of Integrative Plant Biology 1984 26(5)
      
    Some viewpoints which are different from principles of division of the vegeation altitude belts, that has appearred in a large number of literatures, especially from principles of division of those belts, used in the Transverse Mountain area (River Gorge Ceuntry), are presented in this paper: 1) Evidently, it is insufficient to make a division of zones only under the consideration of the principle of three-dimensions and placor, regardless of the historical factor of the vegetation. The authors are of the opinion that the plant life-form eomplexes which are able to show both the space and the time should be the principle of division of zone. 2) The zonal vegetations in the Transverse Mountain chains are represented by the altitude belt structures of vegetation of the mountain-plateau, which is similar to and overleap that af their altitude belt structures in the various mountains. 3) The altiiude belts of vegetation shauld be held to base their genera(ion on the proeess of the natural history aa'cuts. There are eorrelations both in the ecologieal gradients and tile biolegieal oncs among those belts and there is no sueeession anyhow among those belts. 4) Although arid vegetation of dry and hot river valley lies in basal belts, these are some relicts rather than the normal basal belts and the real vegetation of it's kind lnsy appear in those evergreen forests where local faro:able conditions to their development exist.
Abstract (Browse 1896)  |  Full Text PDF       
Studies on the Aroma Constituents of Fuiien Ti Kuan Yin Tea, Se Chung Tea, Wu-I Shui Hsien Tea and Wu-I Chi Chung Tea in China
Author: Lin Zheng-kui, Hua Ying-fang, Gu Yu-hong, Pan Yan-song and Zheng Ding-gui
Journal of Integrative Plant Biology 1984 26(5)
      
    This paper reports, for the first time, the aroma constituents of the famous Fujian Oolong tea〞Ti kuan Yin Tea, Se Chung Tea, Wu-I Shut Hsien Tea and Wu-I Chi Chung Tea. 70 aroma concentrates of tea samples were identified by the use of (IC-MS, SCOT capillary coumn GC standard sample addition method and IR. Among which benzyl alcohol, translinalooloxide (furanoid), cis-linalooloxide (fuconoid), 3,7-dimeihy-l,5, 7-octatrien-3-ol, 汕-phenylethanol, translinalooloxide (pyranoid), geraniol, indole, eisjasmone, pasmine laetone, nerolidol and mthyl jasmonate are the typical character the aroma constituents. Consequently the aroma is varied by different varieties of the tea, different regions of their growth and different processing.
Abstract (Browse 2014)  |  Full Text PDF       
Analysis of the Esterase Isozymes in Three Lines and F1 in Oryza sativa and Prediction of Heterosis
Author: Yi Qong-hua, Shi Su-yun, Jiang Jin-ruo and Yang Rong-du
Journal of Integrative Plant Biology 1984 26(5)
      
    Esterase isozyme patterns in the embryos of dry seeds of 114 combinations of steriles, maintainers, restorers and their F1 hybrids were analyzed with acrylamide gel eleetrophoresis. Usually six major bands were found and named 1A, 3A, 4A, 5A, 6A and 7A. The isoesterase zymograms in three lines--sterile, maintainer and restorer were diffcrent. There were seven types of zymograms in F1 hybrids. The eomplementary bands were shown in F1 hybrids when sterile with 6A band and restorer with 3A or 5A band were used as parents. F1 hybrids with 3A and 6A complementary each other were more vigorous in vegetative growth and only those 5A and 6A complemontary each other displayed economic superiority. It was shown that the pattern of esterase zymograms of F1 hybrids was influenced by both cytoplasm and nucleus of their parents. It was concluded that esterase isozyme patterns could be used as one of the biochemical markers for the predicting hybrid vigor in heterosis breeding.
Abstract (Browse 1833)  |  Full Text PDF       
Studies on the CN-resistant Respiration in Callus of Nicotiana rustica, Gansu Yellow Flower
Author: Liang Hou-guo, Liu Liang-huan, L邦 Tai-he and Pu Tong-liang
Journal of Integrative Plant Biology 1984 26(5)
      
    In attempting to examine whether CN-resistant respiratory pathway is present in callus culture, we used tobacco callus cultures grown on different media. The M-1 medium contained tbe mineral and organic elements of MS medium and was supple,nented with 6-BA (0.5 mg/l) and 2,4-D (2 mg/l), and M-2 medium with 6-BA (2mg/l) and IAi (1 mg/l). No differentiation was observed in both of them. The respiration of M-1 callus was partly resistant to CN, and was markedly inhlbited by m-CLAM in the presence or absence of CN. Experiments of m-CLAM titration showed that the averages of relative contribution of alternative and cytochrome pathway in M-1 callus were 31% awl 46%of the total respiration respectively during the euliure period of 25 days. A same experiment was made on the M-2 callus. It was found that the pereeutages of relative contributions of the two electron transport pathways to the total respiration were approximately the same as those of the M-1 callus, although the respiratory rate was higher in M-2 callus. The above results showed that the bulk of respiratory electron flux was mediated by the eytoehrome pathway, although the alternative pathway was operative in callus of tobacco. The change of exogenous hormones added in the medium could not produee significant effects on the degree of relative contribution of two electron transport pathways under non-differentiation conditions.
Abstract (Browse 1855)  |  Full Text PDF       
The Promntive Effects of Ginseng on Rapid C1onal In Vitro Propagation of African Violet (Saintapulia tonantha Wendl.)
Author: Xu Lin-qing ( Hui Lam hing)
Journal of Integrative Plant Biology 1984 26(5)
      
    1. Leaf and petiole explants of 31 varielies of African Violet can be induced to regenerate plantlet on MS+0.1 mg/l BA+0.1 mg/l NAA agar medium within 4每6 weeks. 2. Instead of using MS hormone free agar medium, further culturing the explants in MS+ginseng root powder 250 mg/l liquid medium for another 4 weeks has improved the quantity and quality of the regenerated phmtlet. 3. A rapid elonal in vitro propagation protocol was described. The number of transplantable plantlet obtainedby this method was 100每200% more than that obtained by ordinary method. 4. The organogenesis of leaf explants of African Violet was examined by using scanning electron microscopy. The result was described and discussed.
Abstract (Browse 1929)  |  Full Text PDF       
Observations on Microscopic Structure and Ultrastructure of Nostoc flagelliforme
Author: Wang Xun-ling and Gu Long-yun
Journal of Integrative Plant Biology 1984 26(5)
      
    Using the Iight mieroseope, scanning and transmission eleetron microscopes, it is found that each individuaI Nostoe flagelliforme is composed of hundreds and thousands torulose cells. The filaments are uni-triehome with branches in some cases. The thallus is surrounded by a mueoid sheath with different thicknesses, rough surface, and numerous cracky appearance. The Nostoc flagelliforme cells are typieal prokaryote eells ill which there is no discrete nuclear body. However nueleoplasm exists. occupying the center of the ceils. The cell wall of this prokaryote ceil is three-layered. Bet, when the nueleoplasm and the wall, a great quantity of thylakoids disperse. Moreover, structured granules, polyhedral and polyphosphate bodies intersperse. All of vegetative eells seem to be able to divide. The reproductive manner is of horizontal split, i.e. the regenerated new cell walls expand from periphery towards the center, then the mother cells eonstriet and finally split into two daughter cells. In our opinion, the function of this structural characteristic of heteroeysts is to endure extreme envi-ronment, so that they are able to maintain their species progeny.
Abstract (Browse 2660)  |  Full Text PDF       
A Preliminary Study on the Wood Anatomy of Manglietia aromatica Dandy [
Author: Zhang Zhe-seng (Chang Che-tseng)
Journal of Integrative Plant Biology 1984 26(5)
      
    The present paper deals mainly with the wood structures of ※Paramanglietia aromatica§ Hu & Cheng and Paramichelia (Pierre) Hu of the Magnoliaceae. These wood structures are listed in Table i. In comparison of their wood anatomical features with relsted genera[4], we find that (i) the wood anatomy of the reduced genus ※Para- manglietia§ Hu et Cheng is still within the range of Manglietia Dandy and that (2 the wood anatomical features of Paramichelia (Pierre) Hu is very similar to those of Michelia L. and Tsoongiodendron Chun. We also find that the wood anatomy of Manylietia aromatica Dandy [※Parawanglietia aromatica§ (Dandy) Hu & Cheng] is less similar to Manglietiastrum Law (see Table 1).
Abstract (Browse 1987)  |  Full Text PDF       
Kinetic Change in Envelope Membranes Enclosing Bacteroids and Relationship between Host Cells and Bacteroids
Author: Jing Yu-xiang, Zhang Bao-tian and Hou Shu-qing
Journal of Integrative Plant Biology 1984 26(5)
      
    This paper is the first time to describe the ultrastrueture of milk veleh root nodules because of the plants growing only in our country. The nodules with terminal meristem are morphologieally very similar to those of clover, alfalfa and pea that they are elongated and eylindrieal in shape. According to the anatomical arrangement of the nodules which provides an excellent development gradient of the symbiotic proeess along its length, the nodules were sectioned into three equallengh portions, and the central tissue of middle one was used as exprimental material whieh may show ultrastrueture of mature cells infeeted by rhizobia and have the funetion of nitrogen fixation. Most of the ceils in eentral tissue were infeeted by rhizobia whieh entered the host eells also in a way of in'feet,ion thread. The baeteriods developed from released rhizobia are enclosed by envelope membranes. In general, each envelope membrane packs one baeteriod. The envelope membranes can be extended by fusing themselves with vesieles or small vaeuoles in eytoplasm of host cells, and finally enclose the baeteriods from tight to loose. Both the envelope membranes and the surfaee of baeteriods have protrusions, and some of them touch and fuse together to form a pipe-like canal. The relationship between the kinetic change in envelope membranes and the senescence of baeteroids, as well as the material exehange between baeteroids and host cells are diseussed. It is pointed ont that, the baeteriods loose enclosed by envelope membrane and the existence of electron-empty spaee, possibly represent a mature stage of baeteroid development. The structure of pipe-like canals between baeteroids and envelope membranes of host cells is considered probably to be an expression of material exchange function.
Abstract (Browse 1885)  |  Full Text PDF       
Embryological Studies of Gastrodia elata Blume
Author: Liang Han-xing
Journal of Integrative Plant Biology 1984 26(5)
      
    The present paper deals with the embryological studies of the Gastrodia clata The eyt.okinesis of microspores is of the simultaneous type during the tetrad formarion. The compound pollen grains stick together to form the massulae. The massulae are of different size and they consist of several hundreds to about one thausand pollen grains. There are 300 400 massulae contained in an anther. The tapetal layer is of secretory type and its cells are uninue]eate. The structure of the ovule is much reduced, with single integument and no formation of the micropyle. The megaspore is covered in one layer nueellar epidermis, there is only a single nueellar cell at ehaiazal end in section. The nmture embryo sac consists of four ceils and belongs to the reduced form of the Polygonum type. The interval between the pollination and the fertilization is about four days and the double fertilization proceeds normally. The primary endosperm cell divides rarely and degenerates completely 6每7 days after fertilization. The zygote begins to divide one to two days after fertilization. It takes 20每21 days from the pollination to the maturation of the seed. The artificial germination rate of seeds reaches above 85% after 16每20 days.
Abstract (Browse 1719)  |  Full Text PDF       
Studies on the Allergic Principle of Lacquer
Author: Wen Yuan-ying, Wang Shu-xiu and Hu Chang-xu
Journal of Integrative Plant Biology 1984 26(5)
      
    A new six-membered 汐,汕-unsaturated lactone, lacquer allergic lactone, was isolated from the nonphenolic portion of chinese lacquer. Based on the result of clinical test on human bodies, it was an allergenically active volatile compound. The structure of this lactone was identified by means of IR, MS, NMR and chemical reaction. The urushiols was not the unique allergic principle since the actone was isolated.
Abstract (Browse 1795)  |  Full Text PDF       
Isolation and Cultural Behavior of Pollen Tube Subprotoplasts in ,Antirrhinum majus L.
Author: Zhu Cheng, Xie Yi-ming and Hu Shi-yi
Journal of Integrative Plant Biology 1984 26(5)
      
    Large numbers of subprotoplasts were isolated enzymatically from pollen tubes of Antirrhinum majus L. When these subI)rotoplasts, either nucleate or enucleate, were cultured in D2 liquid eulture medium, each formed a thick cell wall and germinated a pollen tube like strueture which also deposited a thick wall, except at the tip of the tube. Tube growth was accomparied by a continuous movement of the mass of cell inelusion in this tube to the tip. Rupture of the naked tip oeeurred within one to six days releasing the mass of cell inelusion in the tube into the culture medium. The faet that both nucleate and enneleate subprotoplasts show the same cultural behavior eharaeteristie of the gene expression of a normal pollen tube demonstrates the presence of presynthesized mRNA in the germinated tubes.
Abstract (Browse 1719)  |  Full Text PDF       
Studies on the Constituents of Aristolochia mollissima Hance
Author: He Lin-xing, Xue Hui-zhong, Xu Yun-xing and Weng Jing
Journal of Integrative Plant Biology 1984 26(5)
      
    Ten constituents have been isolated from the ethanolie extract of the stems and leaves of Aristolochia mollissima Hanee. Based on speetrai analysis and the determination of physieo-ehemieal constants they have been identified as: (A1) aristoloehie acid A, (A2) vanillie acid, (A3) aristoloehie acid D, (B1) pahnitone, (B2) n-triacontanol, (B3) 汕-sitosterol, (B1) aristololaetam, (B11)6-methoxy aristololaetam, (B7) 汕- sitosterol D-glueoside, (B8) stearic acid. A1 and B1 have been found to have an inhibition action of implantation in mice.
Abstract (Browse 1945)  |  Full Text PDF       
 

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