未来十年的生物多样性保护目标

生物多样性作为人类生存与发展的基础,正以前所未有的速度丧失.据国际自然保护联盟(IUCN)报道,在他们评估的5.2万个物种中有36%受到严重威胁,全球六千多种两栖类中有30%受到严重威胁,自2000年以来每年有600万公顷原始森林丧失,在过去的20年中红树林丧失了35%,目前70%的珊瑚礁受到严重破坏(http://www.iucn.org/iyb/about/bio-diversity_crisis/).     

植物学名校订工具

<正>近年来,随着植物信息数字化的普及,植物学领域出现了众多名称索引系统,如英国皇家植物园(邱园)和密苏里植物园共同创办并维护的The Plant List(http://www.theplantlist.org/),密苏里植物园维护的Tropicos(http://www.tropicos.org/),邱园、哈佛大学标本馆和澳大利亚国家标本馆共同维护的The International Plant Names Index(IPNI,http://www.ipni.org/),中国科学院植物研究所维护的中国高等植物信息系统(http://www.etaxonomy.ac.cn/)等,这     

亚洲生物多样性保护与信息网络:ABCDNet

亚洲是地球上生物多样性最丰富的地区之一,也是生物多样性保护价值最高的地区之一。在保护国际(Conservation International)确定的34个全球生物多样性热点地区中有13个位于亚洲(http://www.conservation.org/where/priority_areas/hotspots/Pages/hotspots_main.aspx)。亚洲人口达40亿,占世界人口的60%,而且又是近年来经济发展最快的地区,对     

第三届“走向前沿-IFCC国际高级生化和分子细胞生物学暑期培训班”招收学员通知

详情请登录中国生物化学与分子生物学会网站http://www.csbmb.org.cn/或者是登录培训班网站:http://www.csbmb.org.cn/ifcc2012/查询,或者直接联系我们:联系人:宋娟孙     

国际互联网上的生命科学信息资源

1　了解生命科学新进展在众多的网站中 ,“Science”(http://www.china.sciencemag.org)和“Nature”(http://www.natureasia.com/)可以说是世界上最权威的科技期刊 ,发表的论文代表当今生命科学的研究进展及方向 ;“木子新闻”(http://dailynews.muzi.com/tp/chinese/Biology.sh-tml)、中华基因网 (http://www.nju.edu.cn )、“ScienceUpdates” (http://www.gene.com/ae/WN/SU/)和“Science Daily Magazine”(http://www.sciencedaily.com/)以科技新闻为主 ,从中可以了解世界范围内关于生命科学的最新报道。当然 ,还有更多的网站可供…     

生态系统红色名录:进展与挑战

<正>世界自然保护联盟(IUCN)在物种受威胁程度评估标准的制订与应用方面具有权威性,其不断更新并发布的全球物种红色名录(http://www.iucnredlist.org/)被广泛采用,作为生物多样性保护的重要参考。经过半个多世纪的努力,物种红色名录项目取得了重要进展,成为IUCN最有影响力的标志性工作。主要体现在三个方面:(1)     

Biosynthesis and functions of metabolites

正Metabolism is the basic activity of life.Two international conferences,including the 4th International Conference on Plant Metabolism(ICPM2017,http://www.cspb.org.cn/2017/icpm.asp),and the 13th International Meeting on Biosynthesis,Function and Synthetic Biology of Isoprenoids(TERPNET2017,http://www.cspb.org.cn/2017/terpnet.asp)were concurrently convened side by side in Dalian from July 16 to 20,2017.The two conferences were scheduled with independent programs to keep their traditional style,but also arranged with     

中国解剖学会第32届(2016年)学术年会论文征稿通知

<正>各省、市、自治区解剖学会,各分会(专业委员会),各位同仁:中国解剖学会第32届(2016年)学术年会拟定于2016年8月6日-8日在山东济南召开,有关会议的各项准备工作正在进行中。现将有关征稿事宜通知如下:1.学会决定:第32届学术年会仍采用网络管理和网上接收稿件,请登录"中国解剖学会网"(http://www.csas.org.cn)在"学术年会投稿入口"处登录,也可以直接输入:http://www.csas.org.cn/nianhui/ji-     

新一代植物志的起点——读《中国维管植物科属词典》《中国维管植物科属志》的几点思考

<正>中国是全球生物多样性大国,也是世界上植物种类最多的国家之一。据《中国生物物种名录》(2022版)(http://www.sp2000.org.cn/Co LChina)记载,中国产高等植物物种总计483科4,275属38,287种及7,506个种下类群,其中维管植物占绝对优势,共有323科3,643属35,179种及7,258个种下类群,且仍以平均每年220个新分类群及32个国家级分布新记录的速度持续增长(Du et al,2020)。     

致中国细胞生物学学会新会员的信

尊敬的中国细胞生物学学会新会员:您好!祝贺您成为中国细胞生物学学会的会员!中国细胞生物学学会(Chinese Society for Cell Biology,简称CSCB;网址:http://www.cscb.org.cn)是中国共产党领导下的我国细胞生物学工作者的学术性群众团体,成立于1980年。30年来,本会遵守国家法     

Investigation of the mechanism of temperature sensitivity of the electroreceptors of ampullae of lorenzini

In experiments on Black Sea skates (Raja clavata), the potential of the receptor epithelium of the ampullae of Lorenzini and spike activity of single nerve fibers connected to them were investigated during electrical and temperature stimulation. Usually the potential within the canal was between 0 and –2 mV, and the input resistance of the ampulla 250–400 k. Heating of the region of the receptor epithelium was accompanied by a negative wave of potential, an increase in input resistance, and inhibition of spike activity. With worsening of the animal's condition the transepithelial potential became positive (up to +10 mV) but the input resistance of the ampulla during stimulation with a positive current was nonlinear in some cases: a regenerative spike of positive polarity appeared in the channel. During heating, the spike response was sometimes reversed in sign. It is suggested that fluctuations of the transepithelial potential and spike responses to temperature stimulation reflect changes in the potential difference on the basal membrane of the receptor cells, which is described by a relationship of the Nernst's or Goldman's equation type.I. P. Pavlov Institute of Physiology, Academy of Sciences of the USSR, Leningrad. I. M. Sechenov, Institute of Evolutionary Physiology and Biochemistry, Academy of Sciences of the USSR, Leningrad. Pacific Institute of Oceanology, Far Eastern Scientific Center, Academy of Sciences of the USSR, Vladivostok. Translated from Neirofiziologiya, Vol. 12, No. 1, pp. 67–74, January–February, 1980.     

Principles of organization and evolution of systems of regulation of functions

Evolution of living organisms is closely connected with evolution of structure of the system of regulations and its mechanisms. The functional ground of regulations is chemical signalization. As early as in unicellular organisms there is a set of signal mechanisms providing their life activity and orientation in space and time. Subsequent evolution of ways of chemical signalization followed the way of development of delivery pathways of chemical signal and development of mechanisms of its regulation. The mechanism of chemical regulation of the signal interaction is discussed by the example of the specialized system of transduction of signal from neuron to neuron, of effect of hormone on the epithelial cell and modulation of this effect. These mechanisms are considered as the most important ways of the fine and precise adaptation of chemical signalization underlying functioning of physiological systems and organs of the living organism