陆地表层系统动力学机制研究Ⅰ．──陆地表层系统和动力学方程

对陆地表层动力学的研究对象、研究内容及其基本理论方法作了阐述,以多学科综合的观点定义了陆地表层系统,包括时空尺度范围的约定、状态变量的选择、物质循环以及外界因子等的讨论;依据物质和能量守恒原理建立了陆地表层系统的非线性控制方程组,表述了各圈层之间物质循环和能量循环过程、反馈关系及其动力学联系;讨论了控制方程组的整体运作功能以及人类活动对陆地表层系统的影响．     

FIBONACCI级数与菊花结构规律的研究

本文论证了菲波纳斯（Fibonacci）级数与菊花花冠结构的关系,发现了花冠的通用数学模式：花冠（数目）＝（5×倍数）十F_n（F_(n－1)＋F_(n-2)）     

几种细胞分裂素诱导石竹外植体直接再分化成花芽的机理

用ＭＳ＋２,４－Ｄ０．１ｍｇ／Ｌ为基本培养基,分别附加不同浓度的ＺＴ、ＢＡ和ＫＴ,对石竹的叶片、茎和花等外植体直接再分化成花芽的试验表明：叶片的外植体在有ＢＡ时可再分化出只有红色花瓣的不正常花芽;在含ＺＴ的培养基中再分化出具有１～２片叶或无叶的花芽,其花有两性花,雌花和仅单个雌蕊的不正常花,两性花可发育成结籽的果实;ＫＴ未能诱导花芽分化。茎外植体,３种ＣＴＫ都不能诱导出花芽。花等外植体仅在ＫＴ３ｍｇ／Ｌ的培养中再分化出无叶的不正常花芽,ＺＴ和ＢＡ的处理均不能诱导出花芽。     

Structures of wild-type and mutant signal sequences of Escherichia coli ribose binding protein.

The structure of a chemically synthesized 25-residue-long functional signal peptide of Escherichia coli ribose binding protein was compared with that of a nonfunctional mutant-signal peptide using circular dichroism and two-dimensional 1H NMR in solvents mimicking the amphiphilic environments. The functional peptide forms an 18-residue-long alpha-helix starting from the NH2-terminal region and reaching to the hydrophobic stretch in a solvent consisting of 10% dimethylsulfoxide, 40% water, and 50% trifluoroethanol (v/v). The nonfunctional mutant peptide, which contains a Pro at position 9 instead of a Leu in the wild-type peptide, does not have any secondary structure in that solvent but forms a 12-residue-long alpha-helix within the hydrophobic stretch in water/trifluoroethanol (50:50, v/v) solvent. It seems that the Pro-9 residue in the nonfunctional peptide disturbs the helix propagation from the hydrophobic stretch to the NH2-terminal region. Because both of these peptides have stable helices within the hydrophobic stretch, it may be concluded that the additional 2 turns of the alpha-helix in the NH2-terminal region of the wild-type signal peptide is important for its function.     

Variations in Immune Response of Popillia japonica and Acheta domesticus to Heterorhabditis bacteriophora and Steinernema Species

The infectivities of Steinernema carpocapsae, S. glaseri, S. scapterisci, and Heterorhabditis bacteriophora to Japanese beetle larvae, Popillia japonica, and house cricket adults, Acheta domesticus, were compared using external exposure and hemocoelic injection. Only H. bacteriophora and S. glaseri caused high P. japonica mortality after external exposure. When nematodes were injected, P. japonica had a strong encapsulation and melanization response to all species except S. glaseri. Heterorhabditis bacteriophora and S. carpocapsae were able to overcome the immune response, but S. scapterisci was not. All species except S. scapterisci were able to kill and reproduce within the host. Only S. scapterisci and S. carpocapsae caused A. domesticus mortality after external exposure. When nematodes were injected, A. domesticus had a strong immune response to all species except S. scapterisci. Steinernema carpocapsae effectively overcame the strong immune response and caused high host mortality, but S. glaseri and H. bacteriophora did not. Steinernema scapterisci caused high host mortality and reproduced, S. glaseri and H. bacteriophora caused low host mortality but only S. glaseri reproduced, and S. carpocapsae was able to kill the host but reproduced poorly. Most (ca. 90%) of the S. carpocapsae in the hemocoel of P. japonica became encapsulated and melanized within 8 hours postinjection. The symbiotic bacterium, Xenorhabduf nematophilus, was often released before this encapsulation and melanization.     

河南叶县下寒武统辛集组单板类和腹足类化石的研究

本文描述和讨论了河南叶县杨寺庄下寒武统辛集组单板类１３种,腹足类２种,未定类１种。其中包括２新属６新种：Ｒｅｐｅｎｏｃｏｎｕｓ ｘｉｎｊｉｅｎｓｉｓ ｇｅｎ．ｎｏｖ．,Ｓｃｅｎｅｌｌａ ｐｙｃｎａ ｓｐ．ｎｏｖ．,Ｓｅｃｕｒｉｃｏｎｕｓ ｖｕｌｇａｒｉｓ ｓｐ．ｎｏｖ．,Ｏｂｔｕｓｏｃｎｕｓ ｇｒｏｓｓｉｃｏｓｔｕｓ ｓｐ．ｎｏｖ．,Ｉｇｏｒｅｌｌｉｎａ ｐｒｏｂｏｓｃｉｓ ｓｐ．ｎｏｖ．,Ｇａｌ     

鱼类寄生毛细科线虫－新属新种的研究

作者在武陵山地区的鱼类寄生线虫调查工作中,发现一种毛细线虫,经研究,为一新种,定名为岁新毛细线虫,新种（Ｎｅｏｃａｐｉｌｌａｒｉａｐｈｏｘｉｎｉｓｐ．ｎｏｖ．）。根据其特征,为此建立一新属──新毛细线虫属。     

武陵山地区鱼类寄生杆咽属线虫两新种

本文报道在武陵山地区的白甲鱼［（Ｖａｒｉｃｏｒｋｉｎｕｓ（Ｏｎｙｃｈｏｓｔｏｍａ）ｓｉｍｕｓ（ＳａｕｖａｇｅｅｔＤａｂｒｙ）］和沪溪直口峻（ＲｅｃｔｏｒｉｓｌｕｘｉｅｎｓｉｓＷｕｅｔＹａｏ）中发现的两种杆咽属（Ｒｈａｂｄｏｃｈｏｎａ）线虫新种,定名为白甲鱼杆咽线虫,新种（ＲｈａｂｄＯｃｈｏｎａｏｎｙｒｋｏｓｔｏｍｉｓｐ．ｎｏｖ．）和短咽杆咽线虫,新种（ＲｈａｂｄＯｃｈｏｎａｂｒｅｖｉｃｈｏｎａｓｐ．ｎｏｖ．）,并对两新种进行了测量和详细的描述。     

野生大豆种子蛋白含量差异的生理及结构基础的探讨

利用ＳＤＳ－聚丙烯酰胺凝胶电泳、电子显微镜、蛋白及酰脲含量测定等技术,对高蛋白含量（５０．７％ ）的５０３５９ 和低蛋白含量（４０．８％ ）的５０３０５ 两个野生大豆在种子发育过程中贮藏蛋白积累的速率、蛋白组分合成的起始时间、蛋白体发育的进程以及幼茎的酰脲含量进行了比较研究。结果表明：野生大豆５０３５９的高蛋白含量是与其种子发育过程中较高的植株酰脲含量、较早较快的贮藏蛋白合成及积累速率,液泡中高效的蛋白贮藏方式以及蛋白体在子叶细胞中占有较大体积相联系的     

水平回转对水稻幼苗叶细胞的影响

对在模拟微重力装置上回转１４ 天的水稻幼苗叶细胞进行了亚显微形态、电子探针和细胞酶化学研究。发现叶细胞质膜上Ｃａ２＋ －ＡＴＰ酶活性消失,膜内钙总量上升、膜外钙总量下降,细胞骨架变得疏松,细胞壁变薄并凹凸不平。叶绿体的基粒和线粒体的内嵴亦有部分变化。其变化机制,首先是细胞质膜上Ｃａ２＋ －ＡＴＰ酶活性消失,膜上钙泵停止工作,跨膜钙浓度差减小,膜内钙浓度上升,微管、微丝聚合受阻,细胞骨架疏松,分泌泡移动失去导向,从而导致细胞壁变薄等状态