2002年国际数学家大会生物数学卫星会议2002年8月15日-18日中国广西桂林市,广西师范大学田家炳书院(第二次通知)

会议主页：ｈｔｔｐ：／／ｗｗｗ．ｇｘｎｕ．ｅｄｕ．ｃｎ主办单位：中国数学会生物数学分会 中国生态学会数学生态专业委员会承办单位：广西师范大学剖分特邀报告人： Ｆｒｅｄ Ｂｒａｕｅｒ（Ｕｎｉｖｅｒｓｉｔｙ ｏｆ Ｂｒｉｔｉｓｈ Ｃｏｌｕｍｂｉａ，加拿大） Ｃａｒｌｏｓ Ｃａｓｔｉｌｌｏ－Ｃｈａｖｅｚ（Ｃｏｒｎｅｌｌ Ｕｎｉｖｅｒｓｉｔｙ，美国） Ｊｉｍ Ｍ Ｃｕｓｈｉｎｇ（Ｕｎｉｖｅｒｓｉｔｙ ｏｆ Ａｒｉｚｏｎａ，美国） Ｔ．Ｇ．Ｈａｌｌａｍ（Ｔｈｅ ＵｎｉｖｅｒｓｉｔＹ ｏｆ Ｔｅｎｎｅｓｓｅｅ，美国） Ｙａｎ…     

Dynamic Changes of β Tubulin during the Resumption of Meiosis of Mouse Oocyte

ＤｙｎａｍｉｃＣｈａｎｇｅｓｏｆβＴｕｂｕｌｉｎｄｕｒｉｎｇｔｈｅＲｅｓｕｍｐｔｉｏｎｏｆＭｅｉｏｓｉｓｏｆＭｏｕｓｅＯｏｃｙｔｅＬＩＵＨｕｉ;（刘辉）ＣＨＥＮＤａ－ｙｕａｎ;（陈大元）（ＳｔａｔｅＫｅｙＬａｏｂｏｒａｔｏｒｙｏｆＲｅｐｒｏｄｕｃｔｉ...     

蓖麻“哲蓖三号”主要数量性状遗传参数研究

蓖麻“哲蓖三号”主要数量性状遗传参数研究张春华包红霞（内蒙古哲里木盟农业科学研究所,通辽０２８０１５）ＳｔｕｄｉｅｓｏｎｔｈｅＨｅｒｅｄｉｔａｒｙＰａｒａｍｅｔｅｒｓｏｆＭａｊｏｒＱｕａｎｔｉｔａｔｉｖｅＣｈａｒａｃｔｅｒｓｏｆＣａｓｔｏｒ“ＺＨＥＢ...     

The Expression of Nerve Growth Factor Receptor on Schwann Cells and the Effect of These Cells on Regeneration of Axons in Traumatically Injured Human Spinal Cord

Ｔｈｅ　Ｅｘｐｒｅｓｓｉｏｎ　ｏｆ　Ｎｅｒｖｅ　Ｇｒｏｗｔｈ　Ｆａｃｔｏｒ　Ｒｅｃｅｐｔｏｒ　ｏｎ　Ｓｃｈｗａｎｎ　Ｃｅｌｌｓ　ａｎｄ　ｔｈｅ　Ｅｆｆｅｃｔ　ｏｆ　Ｔｈｅｓｅ　Ｃｅｌｌｓ　ｏｎ　Ｒｅｇｅｎｅｒａｔｉｏｎ　ｏｆ　Ａｘｏｎｓ　ｉｎ　Ｔｒａ...     

书评Book Reviews Ⅱ

《中国大型真菌原色图鉴》ＣｏｌｏｒｅｄＩｌｕｓｔａｉｏｎｓｏｆＭａｃｒｏｆｕｎｇｉ（Ｍｕｓｈｒｏｏｍｓ）ｏｆＣｈｉｎａ黄年来主编，林新华责任编辑。１９９８年，中国农业出版社。１－２９３页。书号ＩＳＢＮ－１０９－０４９４１－８／Ｑ．３１６．定价１５０?..     

柑桔园生草栽培的生态效应研究

柑桔园生草栽培的生态效应研究李国怀章文才刘继红胡德文（华中农业大学园艺系,武汉４３００７０）ＳｔｕｄｉｅｓｏｆＥｃｏｌｏｇｉｃａｌＥｆｅｃｔｓｏｆＳｏｄＣｕｌｔｕｒｅｉｎＣｉｔｒｕｓＯｒｃｈａｒｄ．ＬｉＧｕｏｈｕａｉ,ＺｈａｎｇＷｅｎｃａｉ,ＬｉｕＪ...     

Conformational Studies of Arabinoglucuronomannology (AGM)

ＣｏｎｆｏｒｍａｔｉｏｎａｌＳｔｕｄｉｅｓｏｆＡｒａｂｉｎｏｇｌｕｃｕｒｏｎｏｍａｎｎｏｌｏｇｙ（ＡＧＭ）ＩｍｓｈｉｋＬｅｅ;ＢａｉＣｈｕｎｌｉ;ＷａｎｇＣｈｅｎ（ＩｎｓｔｉｔｕｔｅｏｆＣｈｅｍｉｓｔｒｙ,ＣｈｉｎｅｓｅＡｃａｄｅｍｙｏｆＳｃｉｅｎｃ...     

In situ Localization and Isolation of Actin Filaments from Pollen Tubes of Amaryllis vittata Ait

ＩｎｓｉｔｕＬｏｃａｌｉｚａｔｉｏｎａｎｄＩｓｏｌａｔｉｏｎｏｆＡｃｔｉｎＦｉｌａｍｅｎｔｓｆｒｏｍＰｏｌｌｅｎＴｕｂｅｓｏｆＡｍａｒｙｌｌｉｓｖｉｔｔａｔａＡｉｔＣＡｌＸｕｅ（蔡雪）;ＤＯＮＧＹｕｎ－ｚｈｏｕ（董云洲）（ＣｏｌｌｅｇｅｏｆＬｉｆｅＳ...     

全球温室气体排放概况

全球温室气体排放概况曹志平（中国农业大学资源与环境学院生态系,北京１０００９４）ＩｎｔｒｏｄｕｃｔｉｏｎｏｆＧｌｏｂａｌＥｍｉｓｓｉｏｎｓｏｆＧｒｅｅｎｈｏｕｓｅＧａｓ．ＣａｏＺｈｉｐｉｎｇ（ＣｏｌｅｇｅｏｆＲｅｓｏｕｒｃｅｓａｎｄＥｎｖｉｒｏｎｍ...     

持续农业是生态农业的继续与发展

持续农业是生态农业的继续与发展袁从,赵强基（江苏省农业科学院,南京２１００１４）ＳｕｓｔａｉｎａｂｌｅＡｇｒｉｃｕｌｔｕｒｅ—ＴｈｅＣｏｎｔｉｎｕａｔｉｏｎａｎｄＤｅｖｅｌｏｐｍｅｎｔｏｆＥｃｏｌｏｇｉｃａｌＡｇｒｉｃｕｌｔｕｒｅ．￥ＹｕａｎＣｏｎｇｙｉ;ＺｈａｏＱｉａｎｇｊｉ（ＪｉａｎｇｓｕＡｃａｄｅｎｚｙｏｆＡｇｒｉｃｕｌｔｕｒａｌＳｃｉｅｎｃｅｓ,Ｎａｎｊｉｎｇ２１００１４）．ＣｈｉｎｅｓｅＪｏｕｍａｌｏｆＥｃｏｌｏｇｙ,１９９３,１２（２）：１３－１５．Ｉｎｌｉｇｈｔｏｆｔｈｅｃｏｎｄｉｔｉｏｎｏｆｏｕｒｃｏｕｎｔｒｙ,ｔｈｉｓｐａｐｅｒｉｎｔｒｏｄｕｃｅｓｔｈｅｃｏｎｃｅｐｔｓａｎｄｃｏｎｔｅｎｔｓｏｆｓｕｓｔａｉｎａｂｌｅａ－ｇｒｉｃｕｌｔｕｒｅａｎｄｉｔｓｑｕａｎｔｉｔａｔｉｖｅｅｖａｌｕａｔｉｏｎｉｎｄｉｃｅｓ──ｓｕｓｔａｉｎａｂｉｌｉｔｙ,ｓｔａｂｉｌｉｔｙ,ｅｑｕａｌｉｔｙａｎｄｈａｒｍｏｎｉｔｙ（ｄｉ－ｖｅｒｓｉｔｙ）．Ｓｉｍｐｌｉｆｉｅｄｓｙｓｔｅｍｉｎｐｕｔ—ｏｕｔｐｕｔｅｑｕｉｌｉｂｒｉｕｍｉｓｕｓｅｄｔｏｅｓｔｉｍａｔｅｔｈｅｄｙｎａｍｉｃｓｏｆｓｏｉｌｆｅｒｔｉｌｉｔｙ．Ｐ     

我国葫芦科植物离体培养研究进展

葫芦科植物包括多种瓜类蔬菜,对其进行离体培养研究具有重要的理论和实践意义。综述了国内在葫芦科植物器官培养、体细胞胚胎发生、花药培养、原生质体培养和体细胞杂交及离体遗传转化等方面取得的研究进展,并对葫芦科植物离体培养、遗传转化与育种的前景作了展望。     

我国葫芦科植物离体培养研究进展

葫芦科植物包括多种瓜类蔬菜,对其进行离体培养研究具有重要的理论和实践意义.综述了国内在葫芦科植物器官培养、体细胞胚胎发生、花药培养、原生质体培养和体细胞杂交及离体遗传转化等方面取得的研究进展,并对葫芦科植物离体培养、遗传转化与育种的前景作了展望.     

国内双歧杆菌制剂预防小儿继发性腹泻临床疗效的Meta分析

目的系统评价国内双歧杆菌制剂临床预防小儿继发性腹泻的效果。方法按照系统评价的要求检索CBMd isc、VIP、CNK I以及万方数据库等,获得18篇符合纳入标准的文献,共计患儿4050例,对其进行M eta分析,并评价M eta分析结果的稳定性和发表偏倚。结果异质性检验χ^2=34.60,P=0.007〈0.05,采用随机效应模型进行M eta分析,合并RR=0.41,95%C I为0.35～0.49,总体效应检验,Z=10.39,P〈0.00001,差异具有非常显著性,固定效应模型RR值和95%C I与随机效应模型完全一致,剔除小样本报道后的合并RR=0.42,95%C I为0.35～0.50,与剔除前的结果基本一致,且本研究的发表偏倚得到了很好地控制。结论从现有的临床证据来看,双歧杆菌制剂能降低小儿继发性腹泻的发生率,对预防小儿继发性腹泻起到了满意的效果。     

右美托咪啶用于SICU镇静时血流动力学效应与年龄的关系

目的：以心率（HR）、心指数（CI）、体循环阻力（SVR）作为效应指标,明确右美托咪啶（Dex）用于SICU 镇静时年龄和血流动 力学效应的关系。方法：选择2014 年3 月~7 月间在我院SICU 接受普胸或者普外科手术后需要短期镇静患者38 例,各年龄段分 布相对均匀。在病人术后Ramsay评分≤ 3 分时给予右旋美托咪啶6.0 ug/kg/h,连续静脉输注10 min 后停药,应用脉搏指示连续 心输出量监测技术(PICCO)记录用药前及用药后3 min、5 min、8 min、10 min、15 min、20 min、30 min、45 min、60 min、90 min、120 min 的11 个时间点的HR、CI 和SVR。结果：HR、CI 和SVR 的EMAX 随着年龄的增加而增大,可以通过数学模型表示：E= （P<0.05）。结论：右美托咪啶用于SICU 镇静时,患者HR、CI和SVR的EMAX 呈 年龄依赖性变化。     

我国蝴蝶产业发展中亟待解决的几个问题

本文简略介绍了我国目前蝴蝶产业的背景情况和发展现状,着重阐述了该产业发展中亟待解决的目标与思路、政策与法律、科研与技术、人才与培养等一系列问题,并针地性提出了相应解决意见。     

Studies of in vivo mutations in rpsL transgene in UVB-irradiated epidermis of XPA-deficient mice

We have established xeroderma pigmentosum group A (XPA) gene-knockout mice with nucleotide excision repair (NER) deficiency, which rapidly developed skin tumors when exposed to a low dose of chronic UV like XP-A patients, confirming that the NER process plays an important role in preventing UVB-induced skin cancer. To examine the in vivo mutation in the UVB-irradiated epidermis, we established XPA (−/−), (+/−) and (+/+) mice carrying the Escherichia coli rpsL transgene with which the mutation frequencies and spectra in the UVB-irradiated epidermal tissue can be examined conveniently. The XPA (−/−) mice showed a higher frequency of UVB-induced mutation in the rpsL transgene with a low dose (150 J/m²) of UVB-irradiation than the XPA (+/−) and (+/+) mice, while, at a high dose (900 J/m²) they showed almost the same frequency of mutation as the XPA (+/−) and (+/+) mice, probably because of cell death in the epidermis of the XPA (−/−) mice. However, CC→TT tandem transition, a hallmark of UV-induced mutation, was detected at higher frequency in the XPA (−/−) mice than the XPA (+/−) and (+/+) mice at both doses of UVB. This rpsL/XPA mouse system will be useful for further analyzing the role of NER in the mutagenesis and carcinogenesis induced by various carcinogens.     

细胞分裂素对植物衰老的延缓作用

细胞分裂素是一类重要的植物激素,它可在一定程度上延缓植物的衰老。主要从3个方面综述了细胞分裂素与植物衰老之间的关系,即:(1)植物衰老过程中内源细胞分裂素含量变化;(2)外源细胞分裂素的影响;(3)转入与细胞分裂素的合成、降解相关的基因对植物衰老产生的影响。此外,还从细胞分裂素与糖、与脂质氧化反应以及与其它植物激素的关系方面探讨了细胞分裂素在延缓植物衰老中的作用机理。     

Application of in vitro techniques in mutation breeding of chrysanthemum

Rooted cuttings of Chrysanthemum morifolium cv. Maghi, a small flowered, late blooming cultivar, were treated with different doses of gamma rays. Somatic mutations in flower colour (light mauve, white, light yellow and dark yellow) and chlorophyll variegation in leaves were detected as chimeras in treated populations. Attempts were made to standardize a microtechnique for plant regeneration from mutated tissues of stem node, stem internode, shoot tip and ray floret. All these explants were cultured on Murashige and Skoog's medium with 3% sucrose, 0.8% agar and different concentrations and combinations of growth regulators. Plant regeneration was successful from all of the mutated tissues. Plants with chlorophyll variegation in leaves and two new flower colours (light mauve and white) were isolated in pure form with 64% and 100% efficiency of mutant recovery, respectively. Attempts are being made to use this technique to establish new varieties from chimeric tissues to meet the increasing demand of the floriculture trade.     

Role of Telomerase in Reactivation of Macrophage Nuclei in Heterokaryons

It was shown that the duration of stay of macrophages in the peritoneal cavity of mice and method of their isolation did not affect markedly their capacity for resumption of DNA synthesis in heterokaryons. This means that mouse macrophage undergo such changes during differentiation that reactivation of DNA synthesis in their nuclei is only possible after interaction of telomeres with telomerase, since it was already shown that telomerase was involved in reactivation of DNA synthesis in the macrophage nuclei. The results of experiments did not reveal differences in the length of telomeres in mouse macrophages and other somatic cells. This could depend on the significant length of mouse telomeres and, as a result, their shortening, sufficient for the inhibition of proliferation, is beyond the limits of sensitivity of the current methods. It is also possible that changes in DNA properties in the macrophages occurring during their differentiation depend on changes in the conformation of the telomere complex in these cells. Testing of this suggestion is relevant with respect to recent data that cell hybridization, specifically in the form of heterokaryons, may be essential in realization of the therapeutic effect caused by the introduction of cells during cell therapy.