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A Preliminary Study on the Relationship Between the Indica-Japonica RAPD Differentiation of Parents and Heterosisin Dian Type Hybrid Rice

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Agricultural Sciences in China 2002年第12期1卷 1303-1309页

作者： LONG Wen-hong , XU Ming-hui and ZHANG Shu-hua(College of Landscape and Horticulture, yunnan Agricultural university, kunming 650201 , P. R. China Institute of Biotechnology , yunnan Academy of Agricultural Sciences , kunming 650223 , P. R. China Rice Research Institute, yunnan Agricultural university , kunming 650201 , P. R. China) College of Landscape and Horticulture Yunnan Agricultural University Kunming 650201 P. R. China

The relationship between the indica-japonica differentiation of parents and heterosis of hybrid in rice was studied with 10 sterile lines, 10 maintainer lines of the sterile lines, 38 restorer lines of Dian type hybrid rice and 40 hybrids derived from the sterile lines and restorer lines. The results indicated that there was a parabolic correlation between the indica-japonica differentiation of parents detected by RAPD markers and heterosis of hybrid rice. When certain indica-japonica differentiation of parents exists, the percentage of combinations with positve heterosis and the mean heterosis of hybrids were high. But that didn't mean too much difference of parents could lead to stronger hetesosis, that meant overdiffernt parents seldom bring positve het-erotic hybrids. Suitable difference of percent of indica alleles of parents of stronger heterotic hybrid was 12 -16%.

关键词： Dian type hybrid rice Indica-japonica differentiation Heterosis RAPD

GLOBAL　AND　LOCAL　BIFURCATION　IN　PERTURBATIONS　OF　NON－SYMMETRY　AND　SYMMETRY　OF　HAMILTONIAN　SYSTEM

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Systems Science and Mathematical Sciences 1995年第4期8卷 289-298页

作者： LIU Zhengrong(Institute of Applied Mathematics of yunnan Province Department of Mathematics,yunnan university,kunming 650091,China)JING Zhujun(Institute of Mathematics,Academia Sinica,Bejiing 100080,China) 云南省应用数学所云南昆明中科院数学所北京

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关键词： Non-symmetry perturbed bifurcation detection function.

Stability of Plane Wave Solutions for the Ginzburg-Landau-BBM Equations (II)

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Communications in Nonlinear Science and Numerical Simulation 1999年第1期4卷 68-71页

作者： Murong JIANG (Department of Mathematics, yunnan university, kunming 650091, China) (Graduate School of China Academy of Engineering and Physics, P.O.Box 2101, Beijing, China) E-mail. jiangmr@*** Department of Mathematics Yunnan University Kunming 650091 China Graduate School of China Academy of Engineering and Physics P.O.Box 2101 Beijing China

In part (I) of this paper, the stability of plane waves for the GinzburgLandau-BBM equations has been proved. Here, the perturbation decays are obtained by using the Fourier transformation and semigroup estimates.

关键词： decay estimates semigroup the Ginzburg-Landau-BBM equations

Effect of excessive cadmium chloride on the plasmids of *** HB101 in vivo

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Journal of Environmental Sciences 1999年第1期11卷 75-78页

作者： Meng Ling, Wang Huan xiao, Tan De yong Department of Biology, yunnan university, kunming 650091, China

After Escherichia coli HB101 with plasmid pWH58, pWH98, or pTBa 5 were cultered respectively in amp LB broth which contained 50 mg/L CdCl 2 constantly for 24h, these plasmids were isolated from E. coli, and the effect of excessive CdCl 2 on the E. coli HB101 and plasmid DNA was studied by surveying the growth of E. coli HB101 and plasmid, argarose gel electrophoresis and analysis of restriction fragment length polymorphism (RFLP) of plasmids, and plasmid transformation. The results showed that 50 mg/L CdCl 2 treatment lagged the growth of E. coli HB101 for at least 4h, but after grown for 24h there were not significant differences in the growths of E. coli HB101s and the productions of plasmids between the treatment and control. These results implified that E. coli HB101 have induced adaptability to cadmium stress and excessive CdCl 2 did not inhibit the replication and amp + genes expression of plasmid DNA in vivo of E. coli significantly. 50 mg/L CdCl 2 treatment for 24 hours might cause the sequences change of plasmid DNA, but could not lead to the random breakage of plasmid DNA strands. Moreover, after 50 mg/L of CdCl 2 treatment in vivo the transformation activities of plasmid did not altered, implied excessive CdCl 2 could not affect the superhelical structure of plasmid and also not break the loop of plasmid DNA evidently.

关键词： CdCl_(2) plasmid DNA restriction fragment length polymorphism(RFLP).

Theoretical Study on the Dehydrogenation Reaction of H2S by VS+ （3Σ-）

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Chinese Journal of Structural Chemistry 2005年第10期 1111-1116+1101页

作者： GAO Shu-Lina LIU Zheng-Meib XIE Xiao-Guanga a(Department of Chemistry, yunnan university, kunming 650091, China) b(School of Physics and Chemistry, Guizhou Normal university, Guiyang 550001, China)

The dehydrogenation reaction of H2S by the 3∑- ground state of VS+: VS+ + H2S → VS2+ + H2 has been studied by using Density Functional Theory (DFT) at the B3LYP/DZVP level. It is found that the reaction proceeds along two possible pathways (A and B) yielding two isomer dehydrogenation products VS2+-1 (3B2) and VS2+-2 (3A1), respectively. For both pathways, the reaction has a two-step-reaction mechanism that involves the migration of two hydrogen atoms from S2 to V+, respectively. The migration of the second hydrogen via TS3 and that of the first via TS4 are the rate-determining steps for pathways A and B, respectively. The activation energy is 17.4 kcal/mol for pathway A and 22.8 kcal/mol for pathway B relative to the reactants. The calculated reaction heat of 9.9 kcal/mol indicates the endothermicity of pathway A and that of –11.9 kcal/mol suggests the exothermicity of pathway B.

关键词： density functional theory cationic transition metal sulfide dehydrogenation reaction reaction mechanism

太阳能固体吸附式制冰机运行特性的实验及理论分析

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太阳能学报 2004年第4期25卷 503-508页

作者：李明云南师范大学物理与电子信息学院昆明650092

对太阳能固体吸附式制冰机进行了大量的实验研究,实测出太阳能制冰机在外界不同太阳辐射能量下的性能特性。对太阳能固体吸附式制冰机进行了传热、传质数值计算,计算结果与实验吻合较好。用所建立的数学模型对太阳能制冰机进行了符合实... 详细信息

对太阳能固体吸附式制冰机进行了大量的实验研究,实测出太阳能制冰机在外界不同太阳辐射能量下的性能特性。对太阳能固体吸附式制冰机进行了传热、传质数值计算,计算结果与实验吻合较好。用所建立的数学模型对太阳能制冰机进行了符合实际环境工况的性能分析,并对中国西部西藏地区气候资源条件下的太阳能制冷效果作了具体分析。研究工作从理论与实验相结合的角度较为客观地分析了太阳能制冰机实用化前景。

关键词：太阳能制冰机运行特性

Exponential attractors of the nonlinear wave equations

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Chinese Science Bulletin 1998年第16期43卷 1331-1335页

作者： DAI Zhengde 1 and MA Dacai 2 1. Department of Mathematics, yunnan university, kunming 650031, China 2. Department of Mathematics, Shangrao Teachers College, Shangrao 334000, China Department of Mathematics Yunnan University Kunming China Department of Mathematics Shangrao Teachers College Shangrao China

The (E, E)-type exponential attractors for the nonlinear wave equation were obtained by using the decomposition of operators and finite covering *** results solves the open problem of Eden et al.

关键词： nonlinearity wave equations exponential attractors.

Analysis of the Resistance Gene Analogue for Rice Cultivars in yunnan Province

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Agricultural Sciences in China 2002年第5期1卷 549-554页

作者： SUN Yan, WANG Yun-yue, HE Yue-qiu, FAN Jing-hua, CHEN Jian-bin and ZHU You-yong( Key Laboratory for Plant Pathology of yunnan Province ,yunnan Agricultural university, kunming 650201 ,P.R. China College of Agronomy and Biotechnology , yunnan Agricultural university , kunming 650201 , P. R . China ) Key Laboratory for Plant Pathology of yunnan Province Yunnan Agricultural University Kunming 650201 P. R. China College of Agronomy and Biotechnology Yunnan Agricultural University Kunming 650201 P. R. China Key Laboratory for Plant Pathology of yunnan Province Yunnan Agricultural University Kunming 650201 P. R. China

Genetic diversity of commercial and local rice cultivars in yunnan Province was studied using the resistance gene analogue (RGA) based on resistance gene conserved sequences. The RGA analysis of 137 cultivars was conducted by PCR amplification using three primers, i.e. S1/AS3, XLRR for/XLRR rev, and Pto-kinl/Pto-kin2, respectively. The results showed that both Indica and Japonica cultivars were genetically highly diverse. All cultivars were divided into 3 lineages according to the DNA band data at 96% dissimilarity, and into 20 lineages at 60% dissimilarity. The lineages were related to their genetic background and blast disease resistance with only a few exceptions. The RGA data can be useful in rice production by mixed-planting of different cultivars in the field and breeding of resistance cultivars by selecting different parental cultivars with great genetic diversity.

关键词： Rice Resistance gene analogue Blast disease resistance

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试析黑格尔的思辨同一论

思想战线 2002年第1期28卷 1-6,15页

作者：吴松云南大学云南昆明650091

黑格尔的思辨同一论在其思辨哲学体系中具有基础地位和架构作用。黑格尔以思维与存在的对立统一作为哲学的起点 ,深刻地分析和阐释了思维与存在的同一、本体论与认识论的同一、历史与逻辑的同一 ,建构了他独具特色的思辨同一论。理清黑... 详细信息

黑格尔的思辨同一论在其思辨哲学体系中具有基础地位和架构作用。黑格尔以思维与存在的对立统一作为哲学的起点 ,深刻地分析和阐释了思维与存在的同一、本体论与认识论的同一、历史与逻辑的同一 ,建构了他独具特色的思辨同一论。理清黑格尔的思辨同一论 ,对于理解黑格尔的思辨哲学具有重要的意义。

关键词：黑格尔哲学思辨同一