三峡库区资源植物的现状与保护

据调查统计,三峡库区有资源植物2070种,其中药用植物1006种、纤维植物104种、油脂植物76种、观赏植物74种、野果植物54种、芳香植物54种、树脂树胶植物68种、淀粉及糖类植物52种,鞣科植物32种、珍稀植物49种、其它类型植物465种。论述了三峡库区资源植物的分类及保护现状。     

浙江瑞安红双林场植物资源及其利用前景

浙江瑞安红双林场共有维管植物167科538属1055种,其中已知有一定利用价值的资源植物715种,隶属于157科429属。按其性质和用途可分为材用植物、药用植物、油脂植物、纤维植物、淀粉植物、食用植物、芳香植物、栲胶植物、保健饮料植物、牧草及饲料植物、保护与改造环境植物、观赏植物、土农药植物、蜜源植物等14类,其中药用植物种类最为丰富。以常见药用植物234种为例,根据植物资源可利用量估量法估量当地植物资源利用前景,结果表明,其中46.2%的常见药用植物可利用量估量值在12以上,可供开发利用。文后提出红双林场植物资源保护与利用建议。     

广西十万大山自然保护区植物资源

本文报道了广西十万大山自然保护区植物资源,介绍其中主要的材用植物、药用植物、油脂植物、纤维植物、淀粉植物、杂果植物、芳香植物、栲胶植物、保健饮料植物、饲用植物、花卉观赏植物、水土保持植物、珍稀濒危植物等13类资源植物,最后提出植物资源保护与开发利用的建议.     

广西拉沟自然保护区维管束植物资源

据调查,广西拉沟自然保护区有维管束植物186科657属1078种（含变种、亚种）,包括材用植物88种、药用植物358种、油脂植物36种、纤维植物70种、淀粉植物29种、杂果植物25种、芳香植物28种、栲胶植物39种、保健饮料植物12种、饲用植物49种、花卉观赏植物75种、水土保持植物23种、珍稀濒危植物43种等资源植物,保护植物资源迫切而重要,对此提出植物资源保护与可持续利用的建议。     

湖北大洪山野生植物资源调查研究

大洪山位于湖北省中北部,地处中纬度北亚热带季风气候带,植物种类非常丰富。初步统计大洪山共有野生资源植物1137种,隶属于132科、529属。对大洪山的野生植物资源按其性质和用途分为观赏植物、能源植物、药用植物、油脂植物、蜜源植物、纤维植物、淀粉及糖类植物、芳香植物、鞣料植物、饲用植物、土农药植物、树脂及树胶植物,并对其进行了统计和分析。文中列举了一些有代表性、经济价值较高的植物种类,分析了该地区野生植物资源的特点及存在问题,提出了合理开发利用植物资源的建议。     

征稿简则

<正>《广西植物》是广西植物学会与广西植物研究所合办的枪物学学术刊物。主主刊登植物分类学、植物形态学、植物地理学、植物生态及地植牧学、植物生理学、植物引种驯化和植物资源开发利用等领城的试验研究论文、报告,同时亦适当选登一些帧牧学研究的新方法、     

福建闽江源自然保护区野生经济植物资源

闽江源自然保护区位于福建省建宁县。区内有野生维管束植物168科635属1058种20亚种(或变种),按其经济用途分为11类,即纤维植物、鞣料植物、芳香植物、油脂植物、淀粉植物、观赏植物、蜜源植物、树脂及胶用植物、色素植物、药用植物和国家重点保护的珍稀濒危植物。本文还分析各属的区系成分,并对保护区植物资源的利用提出建议。     

征稿简则

《云南植物研究》是综合性的植物学学术刊物。主要报道:1.植物分类学、植物区系学、植物化学、植物生理学、植物形态学、植物生态及地植物学、植物引种驯化等研究论文、简报;2.有关植物资源开发利用的理论和实践问题;3.植物学研究中的新方法、新技术和现代植物学知识;4.国内外植物学研究动态及有关评述。为促进国内外学术交流、合理开发利用我国植物资源,发展植物科学研究服务。     

《植物医生》征稿简则

《植物医生》创刊于1985年,是由教育部主管、西南大学主办的全国公开发行的植物医学研究与应用领域的综合性期刊。2019年起,本刊进行全新改版,以学术性为主,兼顾关键的创新应用技术。主要刊载植物生命运动与生长发育、植物健康保障与提高、植物病虫鼠害预防及医治等方面的论文。设置专题综述、植物病害与病理、植物虫害与生态、植物药剂与药理、植物草害与防除、植物保健与免疫、植物健康综合管理等栏目。     

植物的色香味与植物液泡

植物的色香味与植物液泡植物细胞具有酸甜苦涩等味道,植物的花果叶也具有红橙黄绿等颜色,有些植物还具有特殊的香气,这都与植物的液泡有关系。植物液泡中的液体是细胞代谢活动的产物,其中主要成分是水和溶于水的糖、丹宁、有机酸、植物碱、色素和盐类。由于植物的种类...     

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.