探索生态建设路子促进经济社会发展

探索生态建设路子促进经济社会发展陆琪黄远昌（江苏省大丰市人民政府研究室,２２４１００）ＥｘｐｌｏｒｅｔｈｅＷａｙｏｆＥｃｏｌｏｇｉｃａｌＣｏｎｓｔｒｕｃｔｉｏｎ,ＰｒｏｍｏｔｅＳｏｃｉａｌａｎｄＥｃｏｎｏｍｉｃＤｅｖｅｌｏｐｍｅｎｔ．ＬｕＱｉ,Ｈｕａ...     

一个农户庭院经济的效益及其能流分析

一个农户庭院经济的效益及其能流分析方达福（湖北省阳新县农业环境保护站４３５２００）ＡｎａｌｙｓｉｓｏｆｔｈｅＥｃｏｎｏｍｉｃＢｅｎｅｆｉｔｓａｎｄＥｎｅｒｇｙＣｙｃｌｉｎｇｏｆｔｈｅＥｃｏｌｏｇｉｃａｌａｎｄＥｃｏｎｏｍｉｃＹａｒｄｉｎａＦａｒｍｅｒ...     

我国北方地区裸胞壳属(Emericela)的种

对１４０２份来自于东北、华北及西北地区的土样进行裸胞壳属（Ｅｍｅｒｉｃｅｌａ）菌的分离。结合菌落形态及扫描电镜下子囊孢子的形态将各菌鉴定到种。结果表明我国北方地区分布有８个种,１个变种,分别是无冠裸胞壳（Ｅｍｅｒｉｃｅｌａａｃｒｉｓｔａｔａ）、皱折裸胞壳（４Ｅｍｅｒｉｃｅｌａｃｏｒｒｕｇａｔａ）、茴香裸胞壳（Ｅｍｅｒｉｃｅｌａｆｏｅｎｉｃｕｌｉｃｏｌａ）、宫治裸胞壳（Ｅｍｅｒｉｃｅｌａｍｉｙａｊｉ）、构巢裸胞壳（Ｅｍｅｒｉｃｅｌａｎｉｄｕｌａｎｓｖａｒ．ｎｉｄｕｌａｎｓ）、构巢裸胞壳宽脊变种（Ｅｍｅｒｉｃｅｌａｎｉｄｕｌａｎｓｖａｒ．ｌａｔａ）、四脊裸胞壳（Ｅｍｅｒｉｃｅｌａｑｕａｄｒｉｌｉｎｅａｔａ）、褶皱裸胞壳（Ｅｍｅｒｉｃｅｌａｒｕｇｕｌｏｓａ）及波状裸胞壳（Ｅｍｅｒｉｃｅｌａｕｎｄｕｌａｔａ）。除银川地区以Ｅｍｅｒｉｃｅｌａａｃｒｉｓｔａｔａ为优势菌外,各地区以Ｅｍｅｒｉｃｅｌａｎｉｄｕｌａｎｓ最为常见。文中对常见菌种进行了简要的概述,对在我国较少见的种进行了详细的描述和讨论     

果茶人工群落的生态效应及经济效益评价

果茶人工群落的生态效应及经济效益评价魏国雄（贵州省茶叶研究所，潭５６４１００）ＥｓｔｉｍａｔｉｏｎｏｆＥｃｏｌｏｇｉｃａｌＥｆｆｅｃｔａｎｄＥｃｏｎｏｍｉｃＢｅｎｅｆｉｔｏｆＡｒｔｉｆｉｃｉａｌＴｅａ－ＦｒｕｉｔＣｏｍｍｕｎｉｔｙ．￥ＷｅｉＧｕｏｘｉ...     

中国宽距叶蜂属分类研究(膜翅目:蔺叶蜂科)

系统厘订了中国宽距叶蜂属种类,共记述１１种,包括８新种,移刃宽距叶蜂Ｅｕｒｈａｄｉｎｏｃｅｒａｅａ ｆｌｅｃｔｏｓｅｒｒｕｌａ ｓｐ．ｎｏｖ．长角宽距吉蜂Ｅｕｒｈａｄｉｎｏｃｅｒａｅａ ｌｏｎｇｉｃｏｒｎｉｓ ｓｐ．ｎｏｖ．,吕氏宽距叶蜂Ｅｕｒｈａｄｉｎｏｃｅｒａｅａ ｌｕｉ ｓｐ．ｎｏｖ．黑足宽距叶蜂Ｅｕｒｈａｄｉｎｏｃｅｒａｅａ ｐｕｎｃｔａｔａ ｓｐ．ｎｏｖ．青海宽距叶蜂Ｅｕｒａｄｉｎｏｃｅ     

峨眉山艾纳香属一新种

峨眉山艾纳香属一新种祝正银（四川省中药学校,四川峨眉山６１４２０１）ＡＮＥＷＳＰＥＣＩＥＳＯＦＢＬＵＭＥＡＦＲＯＭＥＭＥＩＳＨＡＮＺｈｕＺｈｅｎｇｙｉｎ（ＳｉｃｈｕａｎｇｃｈｏｌｏｆＣｈｉｎｅｓｅＭａｔｅｒｉａＭｅｄｉｃａ,Ｅｍｅｉｓｈａｎ,Ｓｉｃｈ...     

生物技术文献与专利统计(1999年度)

类别文献(篇数)专利(件数)ＡＧＥＮＥＴＩＣＥＮＧＩＮＥＥＲＩＮＧＡＮＤＦＥＲＭＥＮＴＡＴＩＯＮＡ1ＮｕｃｌｅｉｃＡｃｉｄＴｅｃｈｎｏｌｏｇｙ20574151Ａ2Ｆｅｒｍｅｎｔａｔｉｏｎ1326498ＢＥＮＧＩＮＥＥＲＩＮＧＢ1ＢｉｏｃｈｅｍｉｃａｌＥｎｇｉｎｅｅｒｉｎｇ432131ＣＡＮＡＬＹＳＩＳＣ1ＳｅｎｓｏｒｓａｎｄＡｎａｌｙｓｉｓ11293ＤＰＨＡＲＭＡＣＥＵＴＩＣＡＬＳＤ1....     

地膜覆盖对晚播麦田生态环境若干影响的研究

地膜覆盖对晚播麦田生态环境若干影响的研究孙本普,李秀云,张宝民（山东省滨州地区农业科学研究所,２５６６１５）ＥｆｆｅｃｔｓｏｆＰｌａｓｔｉｃＳｈｅｅｔＭｕｌｃｂｉｎｇｏｎｔｈｅＥｃｏｌｏｇｉｃａｌＥｎｖｉｒｏｎｍｅｎｔｉｎＬａｔｅＷｈｅａｔＦｉｅｌｄ...     

五加属学名考证及其一些新组合

本文考证了五加属学名,支持废弃不合法名称ＡｃａｎｔｈｏｐａｎａｘＭｉｑ．,强调应用合法名称ＥｌｅｕｔｈｅｒｏｃｏｃｃｕｓＭａｘｉｍ,在此基础上,将Ａｃａｎｔｌｈｏｐａｎａｘ属名下２种及１变种并入Ｅｌｅｕｔｈｅｒｏｃｏｃｃｕｓ属名,并对Ｅｌｅｕｔｈｅｒｏｃｏｃｃｕｓ属的４个异名作了订正。     

低丘红壤地区几种农林复合系统的生态经济效益

低丘红壤地区几种农林复合系统的生态经济效益傅庆林,罗永进（浙江省农科院土壤肥料研究所,杭州３１００２１）柴锡周（浙江省林业科学研究所,杭州３１００２３）ＥｃｏｌｏｇｉｃａｌＥｆｆｅｃｔｓａｎｄＥｃｏｎｏｍｉｃＢｅｎｃｆｉｔｏｆｔｈｅＣｏｍｐｌｅｘＡｇ...     

Recent advances in the study of Kaposi's sarcoma-associated herpesvirus replication and pathogenesis

It has now been over twenty years since a novel herpesviral genome was identified in Kaposi's sarcoma biopsies. Since then, the cumulative research effort by molecular biologists, virologists, clinicians, and epidemiologists alike has led to the extensive characterization of this tumor virus, Kaposi's sarcoma-associated herpesvirus(KSHV; also known as human herpesvirus 8(HHV-8)), and its associated diseases. Here we review the current knowledge of KSHV biology and pathogenesis, with a particular emphasis on new and exciting advances in the field of epigenetics. We also discuss the development and practicality of various cell culture and animal model systems to study KSHV replication and pathogenesis.     

The structure, reproduction and taxonomy of Vidalia and Osmundaria (Rhodophyta, Rhodomelaceae)

Comprises species occurring mostly in subtidal habitats in tropical, subtropical and warm-temperate areas of the world. An analysis of the type species, V. spiralis (Sonder) Lamouroux ex J. Agardh, a species from Australia, establishes basic characters for distinguishing species in the genus. These characters are (1) branching patterns of thalli, (2) flat blades that may be spiralled on their axis, (3) width of the blade, (4) primary or secondary derivation of sterile and fertile branchlets and (5) position of sterile and fertile branchlets on the thalli. Application of the latter two characters provides an important basic method for separation of species into three major groups. Osmundaria , a genus known only in southern Australia, was studied in relation to Vidalia , and its separation from the Vidalia assemblage is not accepted. Species of Vidalia therefore are transferred to the older genus name, Osmundaria. Two new species, Osmundaria papenfussii and Osmundaria oliveae are described from Natal. Confusion in the usage of the epithet, Vidalia fimbriala Brown ex Turner has been clarified, and Vidalia gregaria Falkenberg, described as an epiphyte on Osmundaria pro/ifera Lamouroux, is revealed to be young branches of the host, Osmundaria prolifera.     

New or rare chromosome counts in Artemisia L. (Asteraceae, Anthemideae) and related genera from Kazakhstan

Fifteen chromosome counts of six Artemisia taxa and one species of each of the genera Brachanthemum, Hippolytia, Kaschgaria, Lepidolopsis and Turaniphytum are reported from Kazakhstan. Three of them are new reports, two are not consistent with previous counts and the remainder are confirmations of very scarce (one to four) earlier records. All the populations studied have the same basic chromosome number, x = 9, with ploidy levels ranging from 2x to 6x. Some correlations between ploidy level, morphological characters and distribution are noted.     

肝癌中HBV和HCV基因和抗原的分布及意义

采用原位分子杂交方法检测HCV RNA及HBV X基因;采用免疫组织化学方法研究HCV核心抗原,非结构区C33c抗原及HBxAg在肝细胞肝癌中的定位及分布.结果表明(1)HCV RNA、HBV X基因在肝细胞肝癌组织检出率分别为40%(55/136)和82%(112/136).HCV RNA定位于癌细胞的胞浆内,阳性细胞呈散在、灶状及弥漫分布三种形式;HBV X基因在肝癌细胞中的分布呈胞浆型、核型及核浆型,阳性细胞也呈上述三种分布形式;(2)HCV C33c抗原、核心抗原在肝细胞肝癌中的阳性率为81%(133/164)及86%(141/164).C33c抗原定位于癌细胞及肝细胞的胞浆内;核心抗原既定位于癌细胞核中,又可定位于胞浆中.C33c抗原阳性细胞以灶状分布为主;而核心抗原阳性细     

Selection with two alleles and complete dominance

For a plant selection model with frequency-independent viabilities, fertilities and selfing rates, it is shown that apart from global fixation, for certain parameter combinations a protected polymorphism and facultative fixation (either allele may become fixed according to initial frequencies) may both occur. Facultative fixation requires different selling rates for the dominant and recessive type. Protection of the polymorphism requires resource allocation for male and female function. In this connection the problem of purely genetically caused population extinction is discussed.
For general frequency dependence and regular segregation, the chances for establishment of a completely recessive gene are compared to those of a completely dominant gene. It is proven that the process of establishment of the recessive gene, despite a fitness advantage, may be considerably endangered by drift effects if random mating prevails. The recessive gene may reach the same effectivity in establishment as a dominant gene, only if the recessive homozygote mates exclusively with its own type during the period of establishment.