浙江西天目山自然保护区硅藻调查

本文收集了西天目山1986—1990年同一季节5月20日至6月4日30个点,100号的硅藻水样,进行了酸处理、涂片、显微摄影……等工作,初步鉴定了7目,11科,30属,119种,26变种,并对硅藻的区系和生态分布作了分析。认为每年采集的环境情况,如降雨,水温,水污染,海拔高度等因素与硅藻的分布有关。     

黄石地区藤本植物区系与生活型分析

黄石地区藤本植物共72种,隶属26科59属,其基本特点是:双子叶植物科属种最多,其中又以小型科属和单种科属较多,大科属较少。区系成分分析表明,热带成分居首位(35.6%),其次是世界分布(11.9%)、北温带成分(11.9%);生活型以高芽位藤本29种(40.2%)占优,其后依次为一年生藤本25种(34.7%)、地上芽藤本10种(13.9%)、地面芽藤本4种(5.6%)和地下芽藤本4种(5.6%)。     

Microcalorimetric investigation of effect of berberine alkaloids from Coptis chinensis Franch on intestinal diagnostic flora growth

The inhibitory effect of three berberine alkaloids (BAs) from Coptis chinensis Franch, a traditional Chinese medicinal (TCM) herb, on Bifidobacterium adolescentis growth was investigated by micro- calorimetry. The power-time curves of B. adolescentis with and without BAs were acquired, meanwhile the extent and duration of inhibitory effect on the metabolism were evaluated by the growth rate con- stant (k), half inhibitory ratio (IC50), maximum heat-output power (Pmax), peak time of maximum heat-output power...     

连云港地区木本植物区系特生及其城市绿化策略

在对连云港地区木本植物区系特征研究的基础上，从生态学角度提出了该地区的城市绿化策略。     

中国北方草原区城市呼和浩特市域野生种子植物多样性编目

依据１９９６ 年夏季采集的标本，经鉴定确认：呼和浩特市域现有野生种子植物计１７２种，隶属１２３ 属、３７ 科．按生物多样性编目的要求分种进行了描述，为植物区系和群系（Ｆｌｏｒａａｎｄ Ｆｏｒｍ ａｔｉｏｎ）的分析奠定了基础．     

中国海洋绿藻门新分类系统

根据研究结果并结合文献资料,组织和完善了我国海洋绿藻门新的分类系统,并阐述了各物种分布特征。我国海洋绿藻门有3纲14目25科57属287种及其变种,在我国海藻三区的区系分布为黄渤海67种、东中国海27种和南中国海250种,四小区的区系分布为黄海西区67种、东海西区27种、南海北区64种和南海南区230种。     

The diet and gut microflora influence the distribution of enteroendocrine cells in the rat intestine

Several functions of the gut are locally influenced by peptides and biogenic amines released from enteroendocrine cells. The aim of the present study was to assess whether the luminal stimulus of diet or microbial flora or diet-microbial interactions have an influence on the distribution of enteroendocrine cells along the crypt-surface axes of the small and large intestine. The effects of diet and indigenous flora were investigated by comparing the numbers of argyrophil and serotonin immunoreactive cells in the jejunum and colon of germ free and conventional rats fed either a purified diet containing fine ingredients or a commercial diet containing crude fibre of cereal origin. The effects of human flora were analysed in germ-free rats inoculated with human faecal organisms. 1. Feeding the commercial diet reduced the number of argyrophil endocrine cells in the jejunum and serotonin immunoreactive cells in the colon of gern-free animals but increased the serotonin immunoreactive cells in the colon of conventional animals. 2. The rat flora increased the serotonin immunoreactive cells in the colon of animals fed a commercial diet and decreased in those fed a purified diet. 3. Inculation of human flora increased the numbers of serotonin immunoreactive cells both in the jejunum and colon. The results provide evidence that the dietary changes and diet-microbial interactions can affect the regional number of enteroendocrine cells.     

澳大利亚被子植物区系的特征

简要介绍了澳大利亚被子植物区系的成分构成，主要代表科、属、及其种数；对其区系特征、特有类群、干旱适应及与其它地区植物区系成分的关系等问题进行了分析，并对其起源问题进行了初步探讨．     

嵊泗列岛岩相潮间带底栖生物种类组成及区系特点

１９９３年４月至１９９４年１月，对嵊泗列岛岩相潮间带底栖生物进行调查。对该区域内的生物种类及区系特点做了概述与分析     

河南省连康山自然保护区木本植物的研究

连康山自然保护区位于大别山北坡。这里地形复杂,水热资源丰富,次生森林植被发育良好,有木本植物78科,195属,437种及变种,是研究亚热带向暖温带过渡地带植物区系和森林生态系统的理想场所。根据野外调查、采集和鉴定、整理的结果,本文分析研究了本区的木本植物区系,木本植物资源,主要森林植被类型以及珍稀濒危树种,并提出了关于保护,引种栽培、发展和开发利用资源植物的建议,以增强保护区的活力,适应社会主义市场经济体制建设的需要。