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Cloning of plastid division gene GlFtsZ from Gentiana lutea and its expression during petal development

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Progress in Natural Science:Materials International 2002年第8期 34-39+84页

作者： HE Yikun , ZHU Changfu , WANG Dong, KONG Dongdong and SUN Jingsan(1. Institute of Botany, Chinese Academy of Sciences, beijing 100093, china {2., capital normal university, beijing 100037, china 3. College of Life Science, Northeast normal university, Changchun 13002., china) Institute of Botany，Chinese Academy of Sciences，beijing 100093，china department of biology，{2. normal university，beijing 100037，china College of Life Science，Northeast normal university，Changchun 13002.，{2. Institute of Botany，Chinese Academy of Sciences，beijing 100093，china

A full-length cDNA of GlFtsZ was isolated by screening the cDNA library of Gentiana lutea. Analysis of the deduced amino acid sequence encoded by GIFtsZ indicated that GIFtsZ protein possesses the typical conservative motifs existed in all FtsZ proteins. The existence of putative plastid transit peptide in its N-terminus suggested that GIFtsZ might function inside of plastids. With the developmental process of petals of Gentiana lutea, the expression of plastid division gene GIFtsZ declined gradually, whereas the expression of carotenoids biosynthesis gene Zds increased obviously; meanwhile, in contrast to the increment of carotenoids, the content of chlorophyll in petals decreased sharply. The chloroplasts turned into chromoplasts, and the color of petals also turned from green to golden. All of these results suggested that the expression of GIFtsZ is accompanied with the development and differentiation of plastids.

关键词： FtsZ gene plastids chromoplasts Gentiana lutea .

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中国异翅目化石研究现状

动物分类学报 2004年第1期29卷 33-37页

作者：姚云志彩万志任东中国农业大学昆虫学系北京100094 首都师范大学生物系北京100037

自 192.8年秉志命名了早白垩世山东莱阳盆地莱阳组的我国第 1种异翅目化石昆虫 (莱阳中蝽Mesolygaeuslaiyangensis)以来 ,近 30篇关于中国异翅目化石昆虫分类论著被发表 ,共记述我国异翅目化石昆虫 2.2. 85种。由于中国该类群化石没有... 详细信息

自 192.8年秉志命名了早白垩世山东莱阳盆地莱阳组的我国第 1种异翅目化石昆虫 (莱阳中蝽Mesolygaeuslaiyangensis)以来 ,近 30篇关于中国异翅目化石昆虫分类论著被发表 ,共记述我国异翅目化石昆虫 2.2. 85种。由于中国该类群化石没有被系统采集与研究 ,其中一些分类阶元的可靠性存在一定的问题。显然 ,目前对中国该类群化石昆虫的了解相当有限 ;大量的工作。

关键词：异翅目化石分类中国

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木质纤维素酒精发酵菌种的筛选

太阳能学报 2003年第2期24卷 218-221页

作者：李素玉陈新芳田沈王菊杨秀山辽宁大学生命科学系沈阳110036 首都师范大学生物系北京100037

为对木质纤维素水解糖液进行酒精发酵 ,同时代谢葡萄糖和木糖成酒精的 9个菌种以木糖为唯一碳源进行驯化 ,从中选出 3个菌株。并对 3个菌株进行固定化 ,进行酒精发酵研究 ,以进一步阐明该菌株代谢葡萄糖和木糖成酒精的能力。以总糖利用... 详细信息

为对木质纤维素水解糖液进行酒精发酵 ,同时代谢葡萄糖和木糖成酒精的 9个菌种以木糖为唯一碳源进行驯化 ,从中选出 3个菌株。并对 3个菌株进行固定化 ,进行酒精发酵研究 ,以进一步阐明该菌株代谢葡萄糖和木糖成酒精的能力。以总糖利用率、葡萄糖和木糖利用率、酒精产率为指标 ,3株菌具有较好的同时发酵葡萄糖和木糖成酒精的能力。PachysolentannophilisATCC 32.72.8的总糖 (5 %葡萄糖和 2.%木糖 )利用率达到了 85 .0 8% (36h) ,葡萄糖的利用率为99.2.1% (36h) ,木糖利用率 80 .38% (36h) ,菌株CadidashehataeATCC 34887的酒精产率达到理论值的 82..91%。

关键词：葡萄糖和木糖酒精发酵菌种筛选

MULTIPLICITY OF PERIODICSOLUTIONS OF DUFFING'S EQUATIONSWITH LIPSCHITZIAN CONDITIONMULTIPLICITY OF PERIODICSOLUTIONS OF DUFFING'S EQUATIONS WITH LIPSCHITZIAN CONDITION

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Chinese Annals of Mathematics,Series B 2000年第4期21卷 479-488页

作者： WANG ZAIHONG (department of Mathematics, capital normal university,{2., china.) department of Mathematics Capital Normal University Beijing 100037 China

This paper deals with the existence and multiplicity of periodic solutions of Duffing equations x + g(x) = p(t). The author proves an infinity of periodic solutions to the periodically forced nonlinear Duffing equations provided that g(x) satisfies the globally lipschitzian condition and the time-mapping satisfies the weaker oscillating property.

关键词： Periodic solution Time mapping Poincare-Birkhoff twist theorem

Pairing problem of generators in Kac-Moody algebras

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Chinese Science Bulletin 1998年第22期43卷 1872-1879页

作者： LU Caihui department of Mathematics, capital normal university,{2., china department of Mathematics Capital Normal University Beijing China

The following result is proved: in any Kac Moody algebra g(A) , (ⅰ) given any non central element h in the Cartan subalgebra  , or (ⅱ) given any real root vector x β, β∈Δ re . There exists y∈g(A) such that th... 详细信息

关键词： generator root system real root vector.

Bergman kernel function on Hua construction of the fourth type

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Progress in Natural Science:Materials International 2007年第8期17卷 893-899页

作者： Yin Weiping~(**) Lin Ping (department of Mathematics,capital {2. university,beijing 100037,china) [a]department of Mathematics Capital Normal University Beijing China

This paper introduces the Hua construction and presents the holomorphic automorphism group of the Hua construction of the fourth *** the Bergman kernel function,under the condition of holomorphie automorphism and the standard complete or- thonormal system of the semi-Reinhardt domain,the infinite series form of the Bergman kernel function is *** applying the prop- erties of polynomial andΓfunctions,various identification relations of the aforementioned form are developed and the explicit formula of the Bergman kernel function for the Hua construction of the fourth type is obtained,which suggest that many of the previously-reported results are only the special cases of our findings.

关键词： Hua construction Bergman kernel function holomorphic automorphism group

Extremal problems on the Hua domain of the first type

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Science china Mathematics 2005年第z1期48卷 343-354页

作者： SU Jianbing & YIN Weiping Mathematics department, Xuzhou normal {2., Xuzhou 2.1116, china Mathematics department, capital normal university, beijing 100037, china 1. Mathematics department Xuzhou Normal University 221116 Xuzhou China 2. Mathematics department Capital Normal University 100037 Beijing China

In this paper we study some extremal problems between the Hua domain of the first type and the unit ball.

关键词： extremal problem, Hua domain of the first type, minimal circumscribed Hermitian ellipsoid.

Extremal problems on the generalized Hua domain of the first type

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Progress in Natural Science:Materials International 2006年第4期16卷 352-358页

作者： SU Jianbing and YIN Weiping department of Mathematics, Xuzhou normal {2., Xuzhou 2.1116, china department of Mathematics, capital normal university, beijing 100037, china [a]department of Mathematics Xuzhou Normal University Xuzhou China [b]department of Mathematics Capital Normal University Beijing China

Some extremal problems between the generalized Hua domain of the first type and the unit ball are studied. The extremal mapping and extremal value in explicit formulas are also obtained.

关键词： extremal problem generalized Hua domain of the first type minimal circumscribed Hermitian ellipsoid.

The localization of 1-cohomology of transitive Lie algebroids

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Science china Mathematics 2006年第2期49卷 277-288页

作者： CHEN Zhuo & LIU Zhangju department of Mathematics, capital normal university,{2., china School of Mathematical Science, Peking university, beijing 100871, china 1. department of Mathematics Capital Normal University Beijing 100037 China 2. School of Mathematical Science Peking University Beijing 100871 China

For a transitive Lie algebroid A on a connected manifold M and its representation on a vector bundle F, we define a morphism of cohomology groups rk: Hk(A,F) → Hk(Lx,Fx), called the localization map, where Lx is the adjoint algebra at x ∈ M. The main result in this paper is that if M is simply connected, or H (LX,FX) is trivial, then T is injective. This means that the Lie algebroid 1-cohomology is totally determined by the 1-cohomology of its adjoint Lie algebra in the above two cases.

关键词： transitive Lie algebroid representation cohomology localization.