植绥螨科四新种记述（蜱螨亚纲：植绥螨科）

本文记述植绥螨科４新种：长囊钝绥螨Ａｍｂｌｙｓｅｉｕｓ ｌｏｎｇｉｓａｃｃａｔｕｓ ｓｐ．ｎｏｖ．,钩囊钝绥螨Ａ．ｓｔｒｏｂｏｃｏｒｙｃｕｓ ｓｐ．ｎｏｖ．,新裴济钝绥螨Ａ．ｎｅｎｆｉｊｉｅｎｓｉｓ ｓｐ．ｎｏｖ．及侧膜盲走螨Ｔｙｐｈｌｏｄｒｏｍｕｓ ｌａｔｅｒｉｓ ｓｐ．ｎｏｖ．。     

新疆准噶尔盆地北缘早中新世的刺猬化石

记述了采自新疆准噶尔盆地北缘吃巴尔我义早中新世索索泉组的两种双猬化石： Ａｍｐｈｅｃｈｉｎｕｓ ｈｏｈｌｉｎｉ ｓｐ, ｎｏｖ．和Ａ ｃｆ． Ａ． ｍｉｎｉｍｕｓ在大小和 １２＞ ｃ＞ ｐ２等形态 上与甘肃塔朋布鲁克晚渐新世的Ａ．ｋａｎｓｕｅｎｓｉｓ相似,但其ｐ２其ｐ２与ｐ４之间没有齿缺,颏孔的位置在ｐ４的后齿根之下,下颌在ｐ４～ｍｌ的下部较为平直,与后者有明显的差异。 Ａ．ｂｏｈｌｉｎｉ的材 料较多,根据其个体的变异范围,有助于澄清对Ａ．　ｋａｎｓｕｅｎｓｉｓ与Ａ． ｍｉｎｉｍｕｓ的认识。另外,Ａ． ｂｏｈｌｉｎｉ在确定地层时代方面也有潜在的意义。 Ａ． ｃｆ． Ａ． ｍｉｎｉｍｕｓ的尺寸以及ｉｌ、ｐ４和ｍｌ的 形态都与Ａ,ｍｉｎｉｍｕｓ接近,但其水平支略粗壮,颏孔位置较靠后,位于ｍｌ前根之下。     

叶刺瘿螨亚科四新种记述(蜱螨亚纲:瘿螨科)

本文记述叶刺瘿螨亚科４新种：长瘤上三脊瘿螨Ｃａｌｅｐｉｔｒｉｍｅｒｕｓ ｌｏｎｇｉｔｕｂｅｒｅｒｉｓ ｓｐ．ｎｏｖ．,梅叶刺瘿螨Ｐｈｙｌｌｏｃｏｐｔｅｓ ｍｕｍｅ ｓｐ．ｎｏｖ．,柿丽瘿螨Ｃａｌａｃａｒｕｓ ｄｉｏｓｐｙｒｉｓ ｓｐ．ｎｏｖ．和拟福刺瘿螨Ａｃｕｌｕｓ ｐａｒａｆｏｃｋｅｕｉ ｓｐ．ｎｏｖ．,附有形态特征图。     

羽爪瘿螨科三新种记述(蜱螨亚纲:瘿螨总科)

本文记述羽爪瘿螨科三新种：栗蜡皮瘿螨Ａｐｏｄｉｐｔａｃｕｓ ｃａｓｔａｎｅａｅ ｓｐ．ｎｏｖ．,梅双羽爪瘿螨Ｄｉｐｔａｃｕｓ ｍｕｍｅ ｓｐ．ｎｏｖ。,桑大嘴瘿螨Ｒｈｙｎｃａｐｈｙｔｏｐｔｕｓ ｍｏｒｉ ｓｐ．ｎｏｖ．,附有形态特征图。     

固氮菌的孢囊

在特定条件下,自生固氮菌（Ａｚｔ）ｔｏｂａｃｌｅｒｓｐ．）的营养细胞会转变成一卵圆形或球形的休眠体,称为抱囊（Ｃｙｓｔ）。‘ｌ抱羹的形态结构固氮菌的抱囊为球形或卵圆形,大小为１．ＳＸ２．ｏｐｍ［‘］,体积大约为营养细胞的一半,其结构在光学显微镜下至少可分为３部分：中心体（ｃｅｎｔａｌｂｏｄｙ）、内壁层（ｉｎｈｎｅ）和外壁层（ｅｘｉｎｅ）。Ｐｏｐｅ等ｌ’］用钉红染色可见外壁层外还有荚膜．抱囊的中心体是收缩的细胞质部,往往内含数个折射的颗粒,为聚卜羟基丁酸盐（ＰＨＢ）颗粒。紧绕着中心体的为细胞质膜,…     

我国东南沿海地区的VA菌根真菌Ⅲ.：无梗囊霉属7个我国新记录种

本文报道了从我国东南沿海七省发现的７种无梗囊霉新记录种：附柄无梗囊霉Ａ．ａｐｐｅｎｄｉｃｏｌａ,膨胀无梗囊霉Ａ．ｄｉｌａｔａｔａ,毛氏无梗囊霉Ａ．ｍｏｒｒｏｗａｅ,多果无梗囊霉Ａ．ｍｙｒｉｃｏｃａｒｐａ,皱壁无囊霉Ａ．ｒｕｇｏｓａ,疣状无梗囊霉Ａ．ｔｕｂｅｒｃｕｌａｔａ和孔窝无梗囊霉Ａ．ｆｏｖｅａｔａ。除种的形态描述外,还列表介绍了它们的生态分布及土壤环境条件。     

中国蝽卵金小蜂属分类研究(膜翅目:小蜂总科:金小蜂科)

研究了中国金小蜂科蝽卵金小蜂属,记述１新种、１个新组合种及２个中国新纪录种：Ａｃｒｏｃｌｉｓｏｉｄｅｓ ｑｕｉｎｔｕｓ ｓｐ．ｎｏｖ．、Ａｃｒｏｃｌｉｓｏｉｄｅｓ ｓｉｎｉｃｕｓ（Ｈｕａｎｇ＆Ｌｉａｏ）ｃｏｍｂ．ｎｏｖ．,Ａｃｒｏｃｌｉｓｏｉｄｅｓ ｌｕｚｏｎｅｎｓｉｓ Ｇａｈａｎ、Ａｃｒｏｃｌｉｓｏｉｄｅｓ ｉｎｄｉｕｓ Ｆｅｒｒｉｅｒｅ。模式标本保存于中国科学院动物研究所动物标本馆。     

中国桂毛异丽金龟物种群及其分类问题讨论：鞘翅目;丽金龟科

桂毛异丽金龟物种群（Ａｎｏｍａｌａｈｉｒｓｕｔｕｌａｓｐｅｃｉｅｓｇｒｏｕｐ）是山居类群,外部形态彼此十分近似,容易混淆。体型中等,全体被不甚密可见红褐底色的短毛,背面刻点甚密,鞘翅背面有６条深沟行,行距圆脊状隆起。本篇包括国内迄今已知种类１５种,其中新种１０种,新异名１种,新纪录３种,恢复原种名１种。篇内对旧种的分类间题进行了讨论。种名有：闽毛异丽金龟Ａ．ｈｉｒｓｕｔｎｄｅｓｓｐ．ｎｏｖ,桂毛异丽金龟Ａ．ｈｉｒｓｕｔｕｌａＮｏｎｆｒｉｅｄ,湘毛异丽金龟Ａ．ｔｒｉｃｈｏｐｈｏｒａｓｐ．ｎｏｖ．,赣毛异丽金龟Ａ．ｍｏｎｔａｎａｓｐ．ｎｏｖ．,川毛异丽金龟Ａ．ｐｉｌｏｅｌｌａＦａｉｒｍａｉｒｅ,黔毛异丽金龟Ａ．ｓｕｂｐｉｌｏｓａｓｐ．ｎｏｖ,长毛异丽金龟Ａ．ｓｕｂｔｒｉｎａｔａｓｐ．ｎｏｖ,叉毛异丽金龟Ａ．ｓｕｂｔｏｍｅｎｔｅｌｌａｓｐ．ｎｏｖ,疣毛异丽金龟Ａ．ｐｌａｎｉｃａｕｄａｓｐ．ｎｏｖ,云毛异丽金龟Ａ．ｉｗａｓｅｉＭｉｙａｋｅ,斧毛异丽金龟Ａ．ｓａｐａＭｉｙａｋｅ,缅毛异丽金龟Ａ．ｌｉｇｎｅａＡｒｒｏｗ,脊毛异丽金龟Ａ．ｃａｐｉｌｌｕｌａｓｐ．ｎｏｖ,短毛异丽金龟Ａ．ｂｒｅｖｉｈｉｒｔａｓｐ．ｎｏｖ．和     

中国蓝盾异丽金龟种组及其分类问题讨论（鞘翅目：丽金龟科）

本文根据主要外部形态和雌雄外生殖器的相似程度引用为亲缘远近度的参照,将异丽金龟属中的蓝盾异丽金龟（Ａｎｏｍａｌａ ｓｅｍｉｃａｔａｎｅａ Ｆａｉｒｍａｉｒｅ）、红翅异丽金龟（Ａ．ｒｕｆｉｔｈｏｒａｘ Ｏｈａｕｓ）、石门异丽金龟（Ａ．ｓｈｉｍｅｎｅｎｓｉｓ ｓｐ．ｎｏｖ．）、砖红异丽金龟（Ａ．ｉｎｓｕｌｉｃｏｌａ ｓｐ．ｎｏｖ）和墨背异丽金龟（Ａ．ａｔｒｏｖｉｒｅｎｓ ｓｐ．ｎｏｖ．）种设为蓝背异丽     

中国犁沟茧蜂属四新种记述：膜翅目;茧蜂科：软节茧蜂亚科

本文报道犁沟茧蜂属Ａｕｌｏｓａｐｈｅｓ Ｍｕｅｓｅｂｅｃｋ４新种,即中华犁沟茧蜂Ａ．ｃｈｉｎｅｎｓｉｓ ｓｐ．ｎｏｖ,福建犁沟茧蜂Ａ;ｆｕｊｉａｎｅｎｓｉｓ ｓｐ．ｎｏｖ．,两色犁沟茧蜂Ａ．ｂｉｃｏｌｏｒ ｓｐ．ｎｏｖ。和缩颊犁沟茧蜂Ａ．ｃｏｎｓｔｒａｃｔｕｓ ｓｐ．ｎｏｖ。该属为我国新记录属。所有模式标本保存在浙江农业大学。     

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.