迷迭香的离体培养(摘编)

培养条件 　　(1)愈伤组织诱导培养基:MS＋6-BA 1.0 mg*L－1(单位下同)＋IAA 0.025＋NAA 0.1;(2)增殖培养基：MS 6-BA 0.5;(3)分化培养基:MS 6-BA 3.0＋IAA 1.0;(4)茎尖直接诱导丛生芽培养基: MS 6-BA 0.8 IAA 0.2;(5)伸长培养基:MS 6-BA 1.0＋IAA 0.2;(6)生根培养基:MS IBA 0.25. 　　……     

炮弹果的组织培养与快速繁殖

1 植物名称 炮弹果(Crescentia cujete Linn.). 2 材料类别种子. 3 培养条件种子萌发培养基:(1)1/4MS.增殖培养基:(2)MS 6-BA 2.0 mg·L-1(单位下同) NAA 0.2;(3)MS 6-BA 2.0 NAA 0.02;(4)1/2MS 6-BA 1.0 NAA 0.02;(5)1/2 MS 6-BA 2.0 NAA 0.02;(6)MS 6-BA 1.0.     

淡黄花百合的组织培养与快速繁殖

以淡黄花百合的鳞片为外植体进行试管培养,筛选出各培养阶段适宜的培养基分别为:(1)丛生芽诱导,MS 6-BA 2.0 mg/L NAA 0.2 mg/L 蔗糖3%;(2)继代增殖,MS 6-BA 1.5 mg/L NAA 0.1 mg/L 蔗糖3%;(3)生根及小鳞茎生长,1/2 MS NAA 0.5～1.0 mg/L 蔗糖3% 活性碳0.1%,1/2 MS NAA 0.5 mg/L 蔗糖6% 活性碳0.1%.     

黑籽南瓜的组织培养与快速繁殖

1植物名称黑籽南瓜(CuCurbita ficifolia). 2材料类别成熟种子. 3培养条件芽诱导培养基:(1)MS 6-BA 1.0 mg.L-1(单位下同);(2)MS 6-BA 2.0;(3)MS 6-BA 3.0.芽增殖培养基:(4)MS 6-BA 1.0.生根培养基:(5)1/2MS NAA 0.2;(6)1/2MS NAA 0.02;(7)1/2MS IBA 0.02;(8)1/2MS IBA 0.2;(9)1/2MS(不加任何激素).上述培养基均添加2%蔗糖、0.6%琼脂,pH值调至5.8～6.0.培养条件:白天25℃,夜间1 8.5℃,光照1 6 h.d-1,光照度4 000 lx,由培养箱自动控制.     

美洲南蛇藤的组织培养与快速繁殖

1 植物名称美洲南蛇藤(Celastrus scandens L.). 2 材料类别幼嫩的顶芽或带腋芽的茎段. 3 培养条件(1)芽诱导培养基:1/3MS+6-BA 1.0mg·L-1(单位下同)+IBA 0.02+3%蔗糖;(2)增殖培养基:MS+6-BA 1.0+IBA 0.2+3%蔗糖;(3)壮苗培养基:MS+6-BA 0.1+IBA 0.02+3%蔗糖;(4)生根培养基:1/2MS+NAA 0.5+1.5%蔗糖.     

光叶楮的组织培养和快速繁殖

1植物名称光叶楮(Broussonetia papyrifera),又名构树. 2材料类别茎尖与茎段. 3培养条件启动培养基:(1)MS 6-BA 1.0 mg·L-1(单位下同) NAA 0.5.增殖培养基:(2)MS 6-BA0.5 NAA 0.02;(3)MS 6-BA 1.0 NAA 0.2;(4)MS 6-BA 1.5 NAA 0.1;(5)MS 6-BA 1.5 NAA 0.5.生根培养基:(6)1/2MS IBA 0.5;(7)1/2MS NAA0.3;(8)MS 6-BA 0.2 NAA 0.01.以上培养基均添加3%蔗糖、0.7%琼脂,pH 5.8.培养温度25～28℃,光照12 h·d-1,光照度2 000lx.     

悬垂秋海棠的组织培养

(1)MS 6-BA 0.5 mg·L-1(单位下同);(2)MS 6-BA 1.0;(3)MS 6-BA 0.5 NAA 0.2(4)MS 6-BA 1.0 NAA0.2:(5)MS 6-BA 0.5 NAA 0.1;(6)1/2MS NAA0.1.以上均加入3%蔗糖、0.65%卡拉胶,pH5.8.培养温度(25±1)℃,光照度3000lx.光照时间10h·d-1.     

鸟巢蕨的组织培养

1植物名称鸟巢蕨(Asplenium nidus)又名山苏花、雀巢蕨、雀巢养齿. 2材料类别孢子. 3培养条件孢子萌发及原叶体形成的培养基:(1)MS0.丛芽分化及增殖培养基:(2)MS 6-BA0.5 mg·L-1(单位下同) IBA 0.2;(3)MS 6-BA0.4 NAA0.2;(4)MS 6-BA 1.0;(5)MS 6-BA2.0;(6)MS NAA 0.2.诱导生根培养基:(7)1/2MS NAA 0.5;(8)1/2MS IBA 0.3 NAA 0.5;(9)1/2MS NAA 1.0.上述培养基pH均为5.8,加入30 g·L-1蔗糖、7 g·L-1琼脂.培养温度为(25±2)℃,光照度1 000～1 500lx,光照时间为10 h·d-1.     

双歧卫矛的组织培养与快速繁殖

1植物名称双歧卫矛(Euonymus distichus Lév1.)。2材料类别幼嫩茎段。3培养条件启动培养基:(1)MS 6-BA 1.0 mg·L~(-1) (单位下同) IBA 0.1 3%蔗糖。继代培养基:(2) MS 6-BA 2.0 IBA 0.1 3%蔗糖;(3)Ms 6-BA 0.2 NAA 0.2 3%蔗糖。壮苗培养基:(4)MS。生根培养基;(5)1/2MS IBA 1.0 1.5%蔗糖,上述培     

青花菜(Brassica oleracea)品种"上海2号"花枝

诱导和增殖培养基:(1)MS 6-BA1.0 mg·L-1(单位下同) NAA0.1;(2)MS 6-BA1.0 NAA0.2;(3)MS 6-BA 1.0 NAA 0.5;(4)MS 6-BA0.5; NAA0.1     

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.