Li Li Zheng Xinmin Wei Qingxin Wei Yan
2003, 22(5).
Abstract:To produce human MCP and CD59 transgenic mice animal model for the study of xeno-graft,the human MCP and CD59 genes were introduced into fertilized mice eggs by mixed microinjection. Four hundred seventy-eight fertilized eggs were introduced into human MC
Zhang Meidong Zhan Xianjin Zhang Xianlong
2003, 22(5).
Abstract:RAPD technique has been employed to analyze polymorphic among 12 cultivars of Natural Color Fiber cotton collected from different breeding units, with a white-fiber cotton as control. The software of NTSYS-pc version 1. 80 was used to calculate Jaccard' s
Wang Xiaoling Peng Dingxiang Chen Xiaohui
2003, 22(5).
Abstract:采用7种基本培养基对苎麻4种外植体愈伤诱导及分化的效应进行了研究,结果表明,MS、MSB、LS、B5、N6 5种基本培养基对苎麻愈伤诱导效果较好,出愈率为l00%,愈伤量较大。Nitsch和White培养基作用效果差。不同外植体对基本培养基反应不一致,下胚轴脱分化要求较高有机成分,子叶是最易脱分化和再分化的外植体,叶对培养基中有机成分要求不高,茎要求培养基营养成分齐全,有机成分较高利于茎愈伤分化成苗。较高的总N、P、K含量对苎麻的脱分化和分化是至关重要的,而Cu、Mo、Co等微量成分并非必需。
Zheng Zhemin Shi Fuming Luo Guihu
2003, 22(5).
Abstract:记述采自广西壮族自治区中部红水河地区蚱科5新种,即广西尖顶蚱Teredorus guaangxiensis sp.nov.,凹缘柯蚱Coptotettix curvimargiinus sp.nov.,齿股蚱Tetrix denti femura sp.nov.,粗体蚱Tetrix grossus sp.nov.及忻城悠背蚱Euparatettix xinchengensis sp.nov.。模式标本保存于陕西师范大学动物研究所。
Hu Xianqi Yang Ynali Pu Weiqiong Lin Lifei Wang Yang Yu Shengfu
2003, 22(5).
Abstract:The following three species of nematode parasites around rice roots were described in this paper:Aphelenchus avenae Bastian 1865, Helicotylechus multicinctus (Cobb 1893) Golden 1956, and Pratylenchus penetrans (Cobb 1917) Chitwood & Otifa 1952. It's repor
Luo Yanjie Wu Wenwei Ding Wei He Chengxing Yin Kesuo
2003, 22(5).
Abstract:在实验室条件下组建并分析了小菜蛾敏感种群的生命表。结果表明,在(23士0.5)℃,RH85%条件下,种群的内禀增长力rm为0.1895;周限增长率λ为1.2086/d,净增殖率R0为22.7262,平均世代周期T为16.4852d;种群增长1倍所需时间t为3.66d,其存活曲线为DeeveyI型,即死亡率是年龄的增函数。
2003, 22(5).
Abstract:博落回Macleaga cordata(Willd)R.Br.是罂粟科博落回属多年生草本植物,广泛分布于我国西南、华中、华东、华北及西北各地,生长在1500 m以下的山地或丘陵沟边,或林缘沙土地上,山区民间很早就用作杀虫农药。
Liu Yixin Han Yiwang Tang Shen An Deyan Jiang Yuping Liu Wuding
2003, 22(5).
Abstract:Water-stable aggregates and micro-structure of different type soils such as Jiangxi red soil, Henan brown soil, Anhui yellow-red soil and Hubei yellow-brown soil were researched. After the crystal organic fertilizer was applied to those soils, 0. 25-2. 0
2003, 22(5).
Abstract:在沙培条件下分别供应铵态氮、硝态氮及1:1的铵硝态氮营养液,研究了2种氮素形态对玉米苗期可溶性糖、还原态糖含量及N、P、K累积的影响。结果表明:单独供硝态氮时,玉米幼苗根、茎、叶积累的可溶性总糖和植株累积的还原态糖最多,结构多糖(纤维素)的含量也最高。硝态氮营养条件下,各器官积累的氮素增多,磷、钾累积量提高。这些生理特性的差异导致植株积累的碳水化合物最多,最终使玉米生物量最高。
Cai Yajun Peng Kefan Dai Shunying Gao Meiying
2003, 22(5).
Abstract:从土壤中分离出几株广谱杀鳞翅目昆虫的苏云金芽孢杆菌。其中杀虫效果最好的1株C-33血清型为H5,产生近方形和菱形的伴孢晶体,含有cry1Aa、cry1Ab、cry1Ac、cry1C基因,产生144kDa和77kDa的晶体蛋白质。毒力生物测定证明C-33对棉铃虫及甜菜夜蛾有高毒力。对该天然广谱Bt菌株C-33进行了摇瓶发酵和小试发酵试验,结果表明其发酵性能良好。通过2L全自动罐发酵试验,优化了发酵培养基和发酵条件,发酵效价达到3400~3700IU/μl(棉铃虫)。
Tao Yugui Tang Bin Huang Wei Xu Xianlu
2003, 22(5).
Abstract:采用以啤酒糟为主要原料进行压力脉动固态发酵苏云金芽孢杆菌的方法,研究了不同压力脉动及培养条件对生物农药毒力效价的影响。试验结果表明:压力脉动条件为低压0.05mPa维持10min,高压0.2mPa维持30min;最佳发酵条件为原料含水量58%、pH8.5、温度28℃;生物农药的毒力效价可达7300IU/mg。
2003, 22(5).
Abstract:通过对通城猪、长大通、大长通杂种猪红细胞数(RBC)、白细胞数(WBC)、血红蛋白浓度(HGB)、红细胞压积(HCT)、平均血细胞容积(MCV)、平均血细胞血红蛋白量(MCH)、平均血细胞血红蛋白浓度(MCHC)、IgG含量、ANAE阳性率(ANAE^ )、迟发型皮肤超敏反应(DTH)的测定,发现通城猪DTH、WBC、RBC、HGB、HCT、MCV、MCHC性状的平均值均高于长大通和大长通杂种猪。对影响各性状的因素进行了分析,结果表明DTH、WBC、RBC、HGB、HCT、MCV、MCHC性状与品种有关,WBC、MCHC与性别有关。对各免疫性状间的相关关系进行了分析,探讨了所测免疫性状指标对机体免疫力的代表性。
Xu Jianxiong Cui Li Ye Chenliang Chen Luyong
2003, 22(5).
Abstract:180 one day's old yellow broilers that were randomly divided into 3 groups containing 5 replicates (12 birds per replicates) were used to study the effect of 0, 500 and 1000 mg/kg xylanase on the performance and nitrogen utilization in corn-soybean diets.
2003, 22(5).
Abstract:To test the sensitivity and specificity of various antigens, agglutination test, agar diffusion test and counter immunoelectrophoresis test are conducted, using standard strains of 14 Actinoba-cillus pleuropneumoniae serotypes as diagnostic antigens and s
Zheng Shuming Wang Yanni Nie Yingxia Ye Kunfen
2003, 22(5).
Abstract:在28℃左右的条件下,对虎鲨分别进行了饥饿Od(对照组)、饥饿4d、饥饿6d、饥饿8d、饥饿4d-摄食4d-饥饿4d、饥饿4d-摄食8d-饥饿4d 6个处理,并将每个组饥饿过程中的身体组分与淀粉酶变化作了测定,结果表明:虎鲨的恢复生长属于部分补偿生长;饥饿过程中蛋白质含量、脂肪含量、能值下降,含水量增加,灰份变化规律不明显;淀粉酶活力在饥饿时间较短时呈现下降趋势,持续饥饿时间增加后则开始上升,恢复生长后酶活力均上升。
2003, 22(5).
Abstract:从鱼类致病菌中提取的脂多糖(lipopolysac-charide,LPS)作为免疫原接种供试鱼,能诱导受免鱼产生较强的特异性与非特异性免疫应答[1-3],这是因为革兰氏阴性致病菌的LPS上存在菌体的有效抗原并具有佐剂性的缘故[4]。研究结果还证明了因致病菌的种类[1.2]、菌株培养时间[5]、菌株的血清
Peng Junjie Wang Dehan Lin Huidong Li Xiaojian Liao Zongwen
2003, 22(5).
Abstract:Usinging dicyandiamide (DCD) as reference material, field experiment was conducted to study the effect of N-lignin (ZAOL) on contents of nitrate and vitamin C in pakchoi. Results showed that N-lignin could reduce contents of nitrate in pakchoi and increas
Cai Xingkui Liu Jun Xie Conghua
2003, 22(5).
Abstract:Somatic hybridization via protoplast fusion is of great advantages for use of potato wild species. This study was primarily attempted to optimize the electrofusion parameters, using mesophyll protoplasts isolated from dihaploid clones 3# and 8#, which wer
Liu Yixing Yu Haipeng Zhang Xianquan
2003, 22(5).
Abstract:This paper describes the methods of evaluating wooden environment from the aspects of subjectivity, objectivity, and psychophysiology . The relationship model among psychological parameters, physiological parameters and physical factors of wooden environm
Yang Xiaoping Ni Dejiang Guo Dayong Shu Simei
2003, 22(5).
Abstract:The condition of microwave extraction tea active composition was studied through single factor design and orthogonal design. The results showed that microwave extraction is a rapid method with less soluent consumption and higher yield. Ratio of solid-liqu
Gong Changrong Li Yanmei Ma Jingmin Zhang Li Li Changjun
2003, 22(5).
Abstract:采用河南农业大学设计的电热式温湿自控烤烟箱对烟叶进行了高温、低温、低温拉长变黄等3种不同的烘烤处理,对各烘烤条件下烟叶中H2O2、O2^-、丙二醛(MDA)及谷胱甘肽还原酶(GR)、谷胱甘肽(GSH)动态的测定结果表明,随着烘烤中烟叶水分不断散失,O2^-、H2O2、MDA和谷胱甘肽的含量,在0-24h期间均呈现缓慢上升,24-48h急剧上升的趋势,其中O2^-、H2O2、MDA含量变化在48h后趋于平缓;谷胱甘肽还原酶活性变化趋势相反。就不同烘烤条件而言,低温条件下活性氧和GR的变化幅度最大,低温并拉长变黄时间次之,高温下最小。
Xiao Rongbo Zhou Zhixiang Xie Yang Ye Zhenqing Guo Erxiang
2003, 22(5).
Abstract:On the basis of the character of GIS database and the logic design of map block and layer structure, this paper expatiated the process of using Cartalinx and ArcView software to build the basic GIS database in Wuhan Iron and Steel Industrial District. Som
Wu Aibo Zhao Chunsen Qu Bo Liao Yucai
2003, 22(5).
Abstract:In this paper, recent advances on mycotoxins produced by the isolates of Fusarium were reviewed, including the studies on the culture and condition of mycotoxins production, the relationship between pathogenicity and mycotoxins, and the methods of mycotox
2003, 22(5).
Abstract:Based on the homology analysis of nucleic acid sequence encoding orotidine-5'-monophos-phate decarboxylase from Mucor circinelloides, Phycomyces blakesleeanus, Rhizopus niveus and Rhizo-mucor pusillus, a pair of primers were designed in the third exon. A
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