March 1989, Volume 31 Issue 3


          Research Articles
Flavonoid Constituents from the Seeds of Nitraria tangutorum Bolor
Author: Jia Zhong-jian, Zhu Guang-jun and Wang Ji-he
Journal of Integrative Plant Biology 1989 31(3)
Abstract (Browse 2126)  |  Full Text PDF       
Sphenophyllum plurifoliatum from the Upper Carboniferous Coal Ball of Shanxi, China
Author: Zhao Li-ming
Journal of Integrative Plant Biology 1989 31(3)
Abstract (Browse 1927)  |  Full Text PDF       
The Study of Special Periderms in the Root of Gentiana macrophylla Pall
Author: Wang Ying and Lou Zhi-cen
Journal of Integrative Plant Biology 1989 31(3)
Abstract (Browse 1850)  |  Full Text PDF       
Study on Plant Regeneration of Soybean ( Glycine max L. Merr.) in Monocell Culture
Author: Luo Xi-ming, Zhao Gui-lan, An Li-jia, He Meng-yuan and Hao Shui
Journal of Integrative Plant Biology 1989 31(3)
Abstract (Browse 1949)  |  Full Text PDF       
A Study on Airborne and Allergic Pollen Grains in Tianjin
Author: Wang Yu-zhen, Huang Xia and Zhang Jin-tan
Journal of Integrative Plant Biology 1989 31(3)
    In this paper, the airborne allergic pollen grains from April 1, 1985 to March 31, 1986 in Tianjin is reported. The samples were collected from higher (15.47 m) and lower (2m) levels. The peak of pollen grains appears in Spring (April) and Autumn (August to September) in this city. In Spring peak the pollen grains are mainly from the trees (such as Fraxinus, Ulmus and Populus) and in the Autumn peak from the herbs (such as Chenopodiaceae, Artemisia, Humulus and Gramineae). The relationships among the quantity of airborne pollen and climate and between the diffusion patterns of various pollen grains and the pollen quantity from higher and lower levels are discussed in the present paper.
Abstract (Browse 1932)  |  Full Text PDF       
A New Understanding of the Bohaidinioid Dinoflagellates
Author: Xu Jin-li and Mao Shao-zhi
Journal of Integrative Plant Biology 1989 31(3)
    After the first dinoflagellates monograph was published in China in 1978, the new information about the Bobaidinioid group has been accumulated, which results in reviewing our understanding of this group. The main emendations here emphasize the combination archeopyle of tAa+3Ia or tAa+3I type, the number and distribution of girdle projections, and the nature of girdle folds of this group, on which the systematic position of Bohaidinioideae belonging to Deflandreaceae of Peridiniineae has been allocated. Five forms of seven species of four genera have been emended, and two new species and three new forms have also been described in this paper. They are Bohaidina alveolae, B. spinosa form spinosa, B. spinosa form quadrata, and B. spinosa form fusiforma. In addition an attemp has been made of reconstructing the paleoecology of Bohaidinioideae and its possible role in the process of dinoflagellates migration from marine to freshwater, based on reviewing the geological history of nonmarine dinoflagellate records in the world, the occurrence of Bohaidinioideae and other associated genera and species in the same stratum, combined with available geological and palaeontological evidences.
Abstract (Browse 2016)  |  Full Text PDF       
Study on Chemical Constituents of the Essential Oil and Classification of Types from Cinnamomum camphora
Author: Shi Wan-yang, He Wei, Wen Guang-yu, Guo De-xuan, Long Guang-yuan and Lin Yin-gou
Journal of Integrative Plant Biology 1989 31(3)
    Cinnamomum camphora is one of the important economic trees in China. The essential oil is obtained from its leaves, branches, trunks and roots. Total 164 trees were selected in Jiangxi province. Different organs of each tree were cellected and steam-distilled 363 essential oil samples were analyzed and quantitated for their constituents by gas chromatography. By means of GC, GC/MS/DS, IR and other chemical methods, 34 chemical compounds were identified. Cinnamomum camphora could be divided as following chemical types (physiololgical-types) by the major compounds of their leaf oils camphor-type; linalool-type; cineol-type; isonerolidol-type and borneol-type.
Abstract (Browse 2313)  |  Full Text PDF       
Studies on the Chemical Constituents of Limonium aureum (L.) Hill
Author: Zhang Hui-chang, Jia Zhong-jian, Wang Ji-he and Chu Tze-tzing
Journal of Integrative Plant Biology 1989 31(3)
    Five different crystals have been obtained for the first time from the aerial parts of Limonium aureum (L.)Hill ex kuntze. They were identified as follows: () homoeriodictyol, () naringenin, () eriodictyol () myricetin-3-O--D-glucoside and () myricetin-3-O--D-galactoside.
Abstract (Browse 2234)  |  Full Text PDF       
The Response of Photosynthesis and Quantum Yield to low Temperature and High Light in Leaves of Rice Seedlings
Author: Lin Zhi-fang and James Ehleringer
Journal of Integrative Plant Biology 1989 31(3)
    The optimal temperatures for net photosynthesis and the quantum yield for CO2 uptake in rice seedlings are different. Both net photosynthesis and quantullm yield were declined along the similar trend, when the leaf temperature was below 20. Chilling treatment (6C12 ) at high light (1200 mol•m-2•s-1) for 2 hours markedly inhibted quantum yield for 34%C74%, and 46%C89% of net photosynthesis. No any inhibition of quantum yield was observed under low light. (120mol•m-2•s-1) during the chilling treatment, but 33% of inhibition occured as rewarming the leaves for 2 hours at 30 and low light. The short term treatment (2 hours) of leaves at the 8 and light intensity of 1000 mol•m-2•s-1, then followed the increase in temperature (30 ) and decrease in light (12 mol•m-2•s-1) resulted in a reversible change of quantum yield from 0.018 to 0.034 (after rewarming of 1 hour) and 0.039 (2 hours). Low oxygen (2%) reduced the inhibition of quantum yield during exposure of rice leaves to chilling temperature and high light. It is indicated that high light and oxygen are important factors to interact with chilling temperature, and the process of photoinhibition with photo-oxidative injury occurred at chilling and light stress in rice seedling.
Abstract (Browse 2124)  |  Full Text PDF       
The Structure, Elongation and Thickening of Rhizome in Nelumbo nucifera Gaertn
Author: Chen Wei-pei and Zhang Si-mei
Journal of Integrative Plant Biology 1989 31(3)
    The seedling of Nelurnbo nucifera is erect and its internodes are very short with four Alternately arranged floating leaves. During the juvenile stage, the shoot elongates remarkably and forms the horizontal rhizome. Each leaf grows out from the dorsal side of the node of the rhizome. There are two kinds of terminal buds in the juvenile shoot. (1) vegetative bud and (2) mixed bud. The axillary scale is the derivative part of the leaf. It forms an ochrea around the terminal bud. The winter buds on the annual shoot are all mixed buds. The vessels are absent in the rhizome and no cambium exists. During tile early growth of the rhizome, the rib meristems contribute mainly to the internode elongation. Later however, divisions are seen to commence in the parenchymatous tissue of the internode. As a result of these divisions the internode becomes elongated. The tuberization of the rhizome is built up from cell divisions of three kinds of tissues: (1) primary thickening meristems, (2) cells of the vascular bundles and (3) parenchyma of cortex. But, the growth in thickness of the rhizome seems to be chiefly due to the enlargement of parenchymatous cells.
Abstract (Browse 2034)  |  Full Text PDF       
Genome Analysis of Three Species of the Genus Algropyron
Author: Tong Ming-you and Zhang Zi-li
Journal of Integrative Plant Biology 1989 31(3)
    The karyotype, C-banding, N-banding and meiosis of F1 plants and isoenzyme electrophoresis were analysed for the study of three species in Agropyron. It was showed that the B genome homologous to common wheat is not likely to exist in A. intermedium and the other two genomes were turned out to be homoeologous. The genome formula xE1 E2 was suggested for A. intermedium. The B genome was found not likely to exist in A. elongata (10x) either, there are two pairs of homoeologous genomes in this species and the genome formula xE1E2F1F2 was suggested. It seemed that the two genomes of A. elongata (4x) are not homoeologous.
Abstract (Browse 1836)  |  Full Text PDF       
The Variation and Evolution of Karyotype in Diploid Wild Cottons
Author: Nie Ru-zhi and Li Mao-xue
Journal of Integrative Plant Biology 1989 31(3)
    The karyotypes of five genomic groups in type species of Gossypium; B1 (G. anomalum), C1 (G. sturtianum), E1 (G. stocksii), F (G. longicalyx), and G (G. bickii) were analyzed in this paper. Coupled with the studies of the karyotypes A1 (G. herbaceum) and D5 (G. raimondii) in the former report, and in view of the interspecific crosses, DNA content, the electrophoretic analysis of seed proteins and morphological and geographical classification, the authors infer that the B genome distributed across Africa from North to South may be the most primitive type, with the differentiation and migration of the B genome as a radiating center, it forms the specific distribution at present time.
Abstract (Browse 1820)  |  Full Text PDF       
Physical Mapping of Recombinant Plasmids Containing Broad Bean Chloroplast Ribosomal RNA Genes
Author: Li Jla, Tang Su, Zhan Xiao-ming, Chen Qin-chuang, Weng Xing-hua and Wang Xun-ming
Journal of Integrative Plant Biology 1989 31(3)
    Two BamHl fragments containing broad bean chloroplast rRNA genes were cloned using the bacterial plasmid pBR322 as a vector and Escherichia coli HB101 as host bacterial. Physical maps of the two cloned ct DNA BamHI fragments containing rRNA genes were constructed by cleavage with several restriction endonucleases and Southern blot hybridization with E. coli 16S-23S rRNAs. Recombinant plasmids pVFBI6 and pVFB32 contain a 16S rRNA sequence on the 4.70 kb BamHl fragment, a 23S rRNA sequence and 4.5S/5S rRNA sequences on the 5.65 kb BamHl fragment, respectively.
Abstract (Browse 2142)  |  Full Text PDF       
The Fertilization and Early Development of Embryo and Endosperm in Stevia rebaudiana Bertani
Author: Shen Jia-heng, Yin Hua, Lian Yong-quan and Chen Shao--qiu
Journal of Integrative Plant Biology 1989 31(3)
    The mature embryo sac is surrounded by endothelium tapetum. It is composed or an egg apparatus, one central cell with secondary nucleus, and 1C6 antipodal cells. About the 6th hour after pollination, female and male nuclei fuse with each other. The syngamy occurred almost simultaneously with the fusion of an other sperm nucleus and the secondary nucleus, but the velocity of the latter is faster than that of the syngamy. The fertilization of Stevia rebaudiana Bertani belongs to the premitotic type. About the 8th hour after pollination, primary endosperm nucleus is in mitosis, its dividing orientation may parallel or at right angle to the long axis of the embryo sac, and gives rise to two initial endosperm cells. The first five divisions of the endosperm cells are of synchronism. At the stage of heart-shaped embryo, the endosperm cells show the signs of digestion and absorbed. The endosperm development is of the cellular type. About the 10th hour after pollination, zygote divides for the first time. The division of the zygote is always transverse. The embryo development conforms to the Asterad type.
Abstract (Browse 2242)  |  Full Text PDF       
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