四川大鲵寄生吸虫一新属新种（吸虫纲：复殖目）

本文描述寄生在大鲵肠道内隐殖科,隐殖亚科吸虫一新种,沐川新鲵居吸虫Ｎｅｏａｎｄｒｉｎｃｏｌａ ｍｕｃｈｕａｎｅｎｓｉｓ ｓｐ．ｎｏｖ．并建立了新属,即新鲵居吸虫属Ｎｅｏａｎｄｒｉｎｃｏｌａ ｇｅｎ．ｎｏｖ．标本采自四川省沭县。模式标本保存在四川农业大学兽医学系。     

云南西双版纳热带雨林区钩马陆科一新属新种（倍足纲：异蛩目）

本文记述一新属,菌肢马陆属Ａｇａｒｉｃｏｇｏｎｏｐｕｓ ｇｅｎ．ｎｏｖ．,隶属于异蛩目,钩马陆科。雄体的生殖肢之后面伸出一对相当大的菌状突起而有别于其他各属,并且生殖基节顶端具有３对裂叶相互把握为三叶菌肢马陆Ａ．ａｃｒｏｔｒｉｆｏｌｉｏｌａｔｕｓ ｓｐ．ｎｏｖ．之基本特征。这一新类群生活在我国云南热带雨林区。     

西藏南迦巴瓦峰地区孟加拉虎的初步研究

１９９４年５～６月、９～１０月及１９９５年６～１２月,作者对西藏东南部南迦巴瓦峰和邻近地区的孟加拉虎的分布及生态进行了野外调查,初步弄清了该地区虎的现状。通过在墨脱县格当乡的抽样调查及跟踪观察虎的移动和觅食,查明了金珠藏布江流域内近两年有关虎捕食大型牲畜的报告属实。１９９３年１０月至１９９５年７月,该河谷内因虎捕食共损失牛、马和骡３０２头,估计活体总重量约５９８８１ｋｇ,平均月损失２７２２ｋｇ,相当于自然状态下１１头虎的月进食量。全乡１２个村的牲畜均受到不同程度的影响,受损的户数占该乡总户数的６２％,户牲畜损失率为７．７％～１００％不等。对其它动物的调查表明,虎大量捕食牲畜与低海拔河谷的开发和环境中虎的自然食物缺乏有关     

山东淄博第四纪裂隙动物群

简要记述产自山东淄博孙家山裂隙群的主要哺乳动物化石,将之分为A、B、C三个动物群。A动物群时代与周口店第18地点相当,为早更新世早期;B动物群时代与周口店第9地点相当,为早更新世晚期;C动物群则可能与周口店第1地点中上部层位的时代相当,为中更新世中晚期。分析不同种类的生态类型并依据最小个体数的统计结果,认为早更新世早期本区为相对温湿的草原环境,附近可能有荒漠化现象;早更新世晚期气候较为温湿,无荒漠化现象;中晚更新世主要为林缘—灌丛环境,气候更为湿润。A动物群是华北地区早更新世早期特有的动物群,略具南北过渡区的特征;B动物群初具现代动物区系的面貌;C动物群基本与现代动物区系一致。     

兔感觉神经特异蛋白的纯化及稳定性观察

以兔脊神经节及背根纤维为材料,通过制备匀浆,DEAE-Sephacel阴离子交换层析,高压液相凝胶过滤层析分离纯化了感觉神经特异蛋白29 ku,并进行了该蛋白的稳定性观察.     

腺苷酸激酶基因在大肠杆菌中的可溶性高表达

报道了鸡肌腺苷酸激酶基因的克隆和在温控启动子P_RP_L调控下在大肠杆菌中的可溶性高效表达.SDS-PAGE分析表明,鸡肌腺苷酸激酶的含量可占大肠杆菌细胞总蛋白含量的38％.利用Johnson等的干冰/乙醇-冰水浴反复冻融法,可将此重组蛋白进行富集,纯度可达85％以上.鸡肌腺苷酸激酶可与抗兔肌腺苷酸激酶单克隆抗体产生强的交叉反应.     

抗白粉病小麦染色体组型的分子标记与生化标记分析

应用与小麦第六同源群有关的分子和生化标记,包括ＤＮＡ探针ｐＳｃ５·３Ｈ３和ｐＳＲ１６７以及同工酶Ｅｓｔ－５和ａ－Ａｍｙ－１,对来自六倍体小黑麦Ｂｅａｇｌｅ与普通小麦科冬５８杂交后代Ｆ１花粉植株的抗白粉病株系Ｍ２４．Ｍ０９及Ｍ１７进行了分析。结果表明,Ｍ２４、Ｍ０９及Ｍ１７不同程度地含有黑麦染色体成分,而且电泳谱带差别较大,据此推断,Ｍ０９为６ＲＬ的易位系。因此,生化和分子标记不仅可以用于确定外源片段的存在,而且可以帮助确定染色体组型和外源片段的位置     

Construction of a recombinant human GM-CSF/MCAF fusion protein and study on its in vitro and in vivo antitumor effects

A novel cytokine fusion protein was constructed by fusing granulocyte macrophage colony stimulat-ing factor (GM-CSF) with monocyte chemotactic activating factor (MCAF), which acts as a factor directing effector cells (monocytes) to a target site. The recombinant human GM-CSF/MCAF fusion protein could sustain the growth of GM-CSF-dependent cell line TF1 and was chemotactic for monocytes. The in vitro antitumor effect showed that rhGM-CSF/MCAF could activate monocytes to inhibit the growth of several human tumor cell lines, including a promyelocyte leukemia cell line HL-60, a lung adenocarcinoma cell line A549, a hepatoma cell line SMMC-7721 and a melanoma cell line Bowes. Furthermore, the cytotoxicity of monocytes activated by rhGM-CSF/MCAF against HL-60 and A549 was greater than that activated by GM-CSF or MCAF alone, even greater than that activated by a combina-tion of GM-CSF and MCAF, suggesting that the fusion protein has synergistic or enhanced effects. The in vivo anti-tumor effect indicated that     

Sequence variation and genetic diversity in the giant panda

About 336–444 bp mitochondrial D-loop region and tRNA gene were sequenced for 40 individuals of the giant panda which were collected from Mabian, Meigu, Yuexi, Baoxing, Pingwu, Qingchuan, Nanping and Baishuijiang, respectively. 9 haplotypes were found in 21 founders. The results showed that the giant panda has low genetic variations, and that there is no notable genetic isolation among geographical populations. The ancestor of the living giant panda population perhaps appeared in the late Pleistocene, and unfortunately, might have suffered bottleneck attacks. Afterwards, its genetic diversity seemed to recover to some extent. Project supported by the “8.5” Key Project of Chinese Academy of Sciences, the Chairman Foundation of Chinese Academy of Sciences, K. C. Wang Education Foundation, the Applied Basic Research Foundation of Yunnan, the National Natural Science Foundation of China, the Special Foundation for Returned Chinese Scientists, and Zoological Society of San Diego.     

中国毛根蚜属研究及新种记述(同翅目：瘿绵蚜科)

中国毛根蚜属研究及新种记述（同翅目：瘿绵蚜科）张万玉,张广学（中国科学院动物研究所北京１０００８０）田士波（河北省农业科学院植物保护研究所保定０７１００１）本文记述采自河北涉县的毛根蚜属一新种：小廖毛根蚜Ｃｈａｅｔｏｇｅｏｉｃａ。ｔｒｉｃｕｌａｔ。、...