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China President XI Jin-ping Met with Dr.Margaret Chan,Director-General of the World Health Organization,and Addressed to Promote Integrative Medicine and Chinese Medicine to Develop in Oversea Countries
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《Chinese Journal of Integrative Medicine》 SCIE CAS 2013年第11期803-803,共1页
China President Xi Jin-ping met with Dr. Margaret Chan, Director-General of the World Health Organization (WHO), at the Great Hall of the People in Beijing, capital of China, Aug. 20, 2013. XI Jin-ping said that Chi... China President Xi Jin-ping met with Dr. Margaret Chan, Director-General of the World Health Organization (WHO), at the Great Hall of the People in Beijing, capital of China, Aug. 20, 2013. XI Jin-ping said that China will continue to improve public health and enhance cooperation with the WHO. The Chinese government always prioritizes its people's health and will make unremitting efforts to further implement reform of its public health system, Xi said. He promised that the Chinese government would continue to effectively distribute public health and medical resources in order to achieve full coverage of basic health services to all Chinese people by 2020. 展开更多
关键词 Organization PING China President xi jin-ping Met with Dr.Margaret Chan Director-General of the World Health Organization and Addressed to Promote Integrative Medicine and Chinese Medicine to Develop in Oversea Countries World MET
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选择性凝血因子XI抑制剂在血栓性疾病治疗中的临床研究进展
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作者 张琴 张冬颖 王曦 《四川医学》 CAS 2024年第3期309-314,共6页
血栓性疾病是当今社会的一个重要医疗问题,动脉内血栓形成是引起心肌梗死、缺血性脑卒中、急性肢体缺血的最常见原因,静脉内血栓则可能导致肢体缺血坏死及肺栓塞等严重后果,这些疾病每年共导致全球1000多万人死亡,占所有疾病死亡的50%以... 血栓性疾病是当今社会的一个重要医疗问题,动脉内血栓形成是引起心肌梗死、缺血性脑卒中、急性肢体缺血的最常见原因,静脉内血栓则可能导致肢体缺血坏死及肺栓塞等严重后果,这些疾病每年共导致全球1000多万人死亡,占所有疾病死亡的50%以上,在过去的20年内,这一比例更是增加了25%~35%[1]。目前,抗凝剂是预防和治疗血栓形成的主要手段之一。 展开更多
关键词 凝血因子xi 抗凝药物 反义寡核苷酸 单克隆抗体 小分子抑制剂
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终末期肝病模型-XI评分对急性心肌梗死冠状动脉支架植入术后患者预后的预测价值
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作者 公方娜 单鸿伟 +3 位作者 廉明 宝璐尔 阿拉腾宝力德 关宏 《中国循证心血管医学杂志》 2024年第8期983-985,共3页
目的 探讨终末期肝病模型-XI(MELD-XI)评分对急性心肌梗死患者冠状动脉支架植入术后的预后的预测价值。方法 回顾性收集2021年1月至2022年12月于内蒙古医科大学附属医院收治的急性心肌梗死患者226例,根据入院时MELD-XI评分,将患者分为高... 目的 探讨终末期肝病模型-XI(MELD-XI)评分对急性心肌梗死患者冠状动脉支架植入术后的预后的预测价值。方法 回顾性收集2021年1月至2022年12月于内蒙古医科大学附属医院收治的急性心肌梗死患者226例,根据入院时MELD-XI评分,将患者分为高MELD-XI评分组和低MELD-XI评分组,每组各113例。比较两组患者近、远期预后。结果 与低MELD-XI评分组比较,高MELD-XI评分组患者左室射血分数(LVEF)显著降低[(51.67±7.91)%vs.(60.91±5.91)%],(P<0.001);N末端脑钠肽前体(NT-proBNP)显著增高(822.87±462.38) vs.(701.84±338.21)ng/L,(P=0.026)。与低MELD-XI评分组比较,高MELD-XI评分组患者不良结局事件的发生率显著增高(16.81%vs. 6.19%,P=0.012)。MELD-XI评分对急性心肌梗死冠状动脉支架植入术后不良结局事件具有一定的预测价值,曲线下面积为0.732,95%CI:0.671~0.798,(P<0.001)。结论 MELD-XI对于预测急性心肌梗死患者预后具有一定的参考价值。 展开更多
关键词 终末期肝病模型-xi 急性心肌梗死 心脏功能 预后 冠状动脉支架植入术
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System and Realization Path of Xi Jinping's Eco-poverty Alleviation Concept under the Vision of Green Development
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作者 Xieyu XIONG Jialin LIU Wanxuan WU 《Meteorological and Environmental Research》 2024年第3期23-31,共9页
Since the 18 th National Congress of the Communist Party of China,General Secretary Xi Jinping delivered a series of speeches on ecological environment and poverty governance,forming the Xi Jinping's eco-poverty a... Since the 18 th National Congress of the Communist Party of China,General Secretary Xi Jinping delivered a series of speeches on ecological environment and poverty governance,forming the Xi Jinping's eco-poverty alleviation ideology.In this paper,the Xi Jinping's eco-poverty alleviation ideology is taken as the research object.Using the methods of literature analysis and comparative analysis,the origin of eco-poverty alleviation theory is explored from the common prosperity theory and the theory of ecological capital,and the practice foundation is found out from practical cases.The relationship between the ecological damage and poverty is systematically analyzed,and the mechanism of ecological poverty is explored in detail.The basic connotation of Xi Jinping's eco-poverty alleviation is expounded,and it consists of three parts:guiding ideology layer,implementation layer,and guarantee layer.By perfecting and innovating the market mechanism,social management mechanism,performance evaluation mechanism,integration mechanism with other poverty alleviation methods,and ecological immigration mechanism of ecological poverty,the realization of Xi Jinping's eco-poverty alleviation concept could be guaranteed. 展开更多
关键词 Green transformation xi Jinping's eco-poverty alleviation Ecological capital
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English Translation of Chinese Natural Ecological Discourse:A Corpus-based Case Study on Xi Jinping:The Governance of China
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作者 TANG Yi 《Journal of Literature and Art Studies》 2024年第5期355-359,共5页
Amid the increasingly severe global natural eco-environment,it is necessary to build a natural ecological civilization by constructing an ecological civilization discourse.Against this background,this study compiles a... Amid the increasingly severe global natural eco-environment,it is necessary to build a natural ecological civilization by constructing an ecological civilization discourse.Against this background,this study compiles a corpus of natural ecological discourse in the English translation of Xi Jinping:The Governance of China(short for Xi).By using Wordsmith and AntConc,this study explores the linguistic features of the ecological discourse in English translation of Xi in the following dimensions,including high-frequency words,keywords,word collocations,concordance lines.This study aims to analyze the concepts and attitudes towards natural ecology,so as to provide certain valuable insights for the construction of China’s discourse on natural ecological civilization.The study found that the natural ecology discourse involving in the English translation of Xi turned out to be ecologically beneficial. 展开更多
关键词 xi Jinping:The Governance of China ecological discourse analysis English translation corpus
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达芬奇机器人(Xi)辅助下直肠前切除术(NOSES-Ⅳ式)
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作者 王凯 李腾腾 +2 位作者 张轩 符炜 付海啸 《手术电子杂志》 2024年第2期22-23,共2页
达芬奇机器人(Xi)系统联合经自然腔道取标本(NOSES)在直肠癌手术中的应用日益成熟和普遍.二者的结合充分发挥了各自的优势,将层面的游离,淋巴的清扫,血管的解剖,神经的保护和无菌、微创理念贯穿始终.因此,机器人下的手术操作,规范的手... 达芬奇机器人(Xi)系统联合经自然腔道取标本(NOSES)在直肠癌手术中的应用日益成熟和普遍.二者的结合充分发挥了各自的优势,将层面的游离,淋巴的清扫,血管的解剖,神经的保护和无菌、微创理念贯穿始终.因此,机器人下的手术操作,规范的手术流程,经自然腔道取标本的微创模式,为程序化的直肠癌根治手术带来了新的进步. 展开更多
关键词 达芬奇机器人(xi)系统 经自然腔道取标本 直肠前切除术
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杜梨LRR-XI-a亚家族的鉴定及调控腐烂病抗性的成员筛选
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作者 蔡敏蕊 田玉珍 +2 位作者 孙娥 郑艳 左存武 《核农学报》 CAS CSCD 北大核心 2024年第8期1425-1433,共9页
为探究LRR-XI-a基因家族在杜梨免疫系统中的作用机制,基于GDR数据库的杜梨基因组数据鉴定了杜梨LRR-XI-a家族成员,经进化特征、基因重复事件和表达模式分析筛选了响应腐烂病信号的成员,并结合果实瞬时表达和抗性基因表达分析对部分成员... 为探究LRR-XI-a基因家族在杜梨免疫系统中的作用机制,基于GDR数据库的杜梨基因组数据鉴定了杜梨LRR-XI-a家族成员,经进化特征、基因重复事件和表达模式分析筛选了响应腐烂病信号的成员,并结合果实瞬时表达和抗性基因表达分析对部分成员的功能进行了初步分析。结果表明,杜梨LRR-XI-a基因家族包含91个成员,进化上可分为6个亚组。基因重复分析结果表明,杜梨中GroupⅠ成员数的迅速增加可能由串联复制(TD)和全基因组复制(WGD)共同导致,而GroupⅥ成员的增加仅由WGD所致。顺式作用元件分析结果表明,杜梨LRR-XI-a亚组Ⅱ和Ⅵ可能主要参与杜梨对非生物逆境信号的响应,而其余4个亚组同时参与对生物和非生物逆境信号的响应。表达分析结果表明,LRR-XI-4和LRR-XI-5在腐烂病侵染后呈不同程度的上调表达,其中LRR-XI-5上调表达量可达对照的586倍以上。果实瞬时表达分析结果表明,过表达LRR-XI-4和LRR-XI-5降低了梨果实对腐烂病的抗性,抑制了JA信号通路基因的表达,但激活了超敏反应响应基因的表达。综上,基因重复导致杜梨LRR-XI-a家族成员发生迅速增加;LRR-XI-a家族成员响应不同的生物胁迫和非生物胁迫;LRR-XI-4和LRR-XI-5通过激活超敏反应(HR)相关基因的表达负调控腐烂病抗性,可作为后期腐烂病抗性研究的候选基因。本研究结果为后续开展梨抗病机理研究和分子育种奠定了基础。 展开更多
关键词 杜梨 LRR-xi-a 基因家族 基因重复 腐烂病
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牛凝血因子XI基因15bp插入突变的分子检测及基因频率分析 被引量:1
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作者 李强 张毅 +7 位作者 王雅春 吴蒙 徐仙洲 张智军 孙东晓 俞英 张胜利 张沅 《畜牧兽医学报》 CAS CSCD 北大核心 2013年第8期1213-1218,共6页
牛凝血因子XI基因第9外显子15bp插入突变是近年在日本和牛中发现的一种遗传缺陷,导致凝血因子活性降低。为了分析该缺陷基因在我国牛群中的携带频率,本研究开发了能灵敏检测该突变的2种新方法,即毛细管电泳法和等位基因特异性扩增法,并... 牛凝血因子XI基因第9外显子15bp插入突变是近年在日本和牛中发现的一种遗传缺陷,导致凝血因子活性降低。为了分析该缺陷基因在我国牛群中的携带频率,本研究开发了能灵敏检测该突变的2种新方法,即毛细管电泳法和等位基因特异性扩增法,并检测了我国引进的和牛种公牛、1个含和牛血液的杂交育种群和商品群、4个国内地方品种(鲁西牛、延边牛、蒙古牛、复州牛)、2个培育品种(中国荷斯坦牛、新疆褐牛)和6个国外品种(西门塔尔、夏洛来、利木赞、安格斯、蒙贝利亚、挪威红牛)样品共452头份。结果显示,在和牛、含和牛血液的杂交育种群及商品群中突变基因频率分别为0.182、0.389和0.242,在延边牛中发现1头携带者,而在其余群体中均未检出,推测该突变可能只存在于东北亚和我国东北地区牛群中。今后我国在引进和牛用于杂交改良以及本地牛选育中需要对该突变进行分子检测和逐步淘汰,从而降低不利等位基因的频率。 展开更多
关键词 凝血因子xi 遗传缺陷 和牛 毛细管电泳 等位基因特异性扩增
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The Study on Tourist Destination Tourism Image Perception and Evaluation in Xi'an City 被引量:2
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作者 王东红 李开宇 +2 位作者 郝凤娇 孙鹏 姚蓉 《Agricultural Science & Technology》 CAS 2013年第9期1285-1288,1343,共5页
[Objective] The aim was to explore the tourist destination image measurement method, and have an empirical study on Xi'an City. [Method] With combination of non-structural and structured approach to design questionna... [Objective] The aim was to explore the tourist destination image measurement method, and have an empirical study on Xi'an City. [Method] With combination of non-structural and structured approach to design questionnaires, tourism image of Xi'an was explored using the SPSS software from both the qualitative and quantitative analyses. [Result] Xi'an tourism images serve a heritage historical monuments atmosphere with the Terracotta Warriors, City Wall, Big Wild Goose Pagoda,Huaqing Hot Springs, presenting a positive feeling among tourists in general. In the dissemination of travel, tourism infrastructure construction, tourism transportation,travel services have negative effects on the image of Xi'an tourism. [Conclusion]The evaluation on the tourism resources is highly spoken of by tourists than the scenic spot, indicating that despite high visibility of tourism resources in Xi'an, it has not formed strong core competitiveness and a complete tourism industrial chain. It is necessary to take the right marketing strategies to enhance tourist familiarity to Xi'an. Tourists demands, therefore, should be well considered in developing Xi'an scenic spots and new tourism products and projects be focused on to improve tourists' satisfaction. 展开更多
关键词 Tourism destination Image perception Structural method Non-structural method xi'an
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Development Strategies for Modern Agricultural Logistics in Xi'an Based on Systematic Diynamics 被引量:2
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作者 李琰 哈奔 李红霞 《Agricultural Science & Technology》 CAS 2011年第9期1252-1255,1259,共5页
[Objective] The devlopmental stratagies for modern agricultural logistics industry in Xi’an were studied based on system dynamics.[Method] By dint of system dynamics,reality analysis and relevant data were applied to... [Objective] The devlopmental stratagies for modern agricultural logistics industry in Xi’an were studied based on system dynamics.[Method] By dint of system dynamics,reality analysis and relevant data were applied to support the exploration of each factor for the development of modern agricultural logistics industry.In the meantime,according to the concrete data,the systematic dynamics model was set up based on the third party logistics and Xi’an agricultural economy cooperation.In addition,each influencing factor was expounded.[Result] The agricultural production,logistics requirement and logistics supply in Xi’an City were increasing;the idea of reducing the cost through improving agricultural logistics requirement was not ideal;the increasing input to agricultural logistics can reduce cost and can promote the development of economy;the third party increasing investment can reduce cost and accelerate economic development.[Conclusion] It provided theoretical basis for the adjustment of economic structure. 展开更多
关键词 System dynamics xi'an agricultural logistics industry COUNTERMEASURES
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The Preliminary Study of Certain Pharmacological Effects of Xi Xin Oil 被引量:2
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作者 胡月娟 徐军 纪绿屏 《Journal of Chinese Pharmaceutical Sciences》 CAS 1993年第2期156-158,共3页
细辛油能松弛兔离体主动脉条,使去甲肾上腺素所致主动脉收缩的量效曲线右移并效能降低;使离体兔耳灌流量减少;能延长小鼠常压耐缺氧时间;用其1/2 LD_(50)之剂量腹腔注射给药3天,可致小鼠骨髓微核形成增加。
关键词 xi xin Oil Aorta strip Anoxia tolerance Micronucleus test
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A Tentative Study on the Combination of Site Protection and City Construction of Xi'an 被引量:1
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作者 衣学慧 熊星 李朋飞 《Journal of Landscape Research》 2011年第7期36-38,41,共4页
The protection of relic sites helps determine the culture coordinate of a city or a region,and enhances its cultural image and status.Through analyzing the construction features and technical means of various ruins pa... The protection of relic sites helps determine the culture coordinate of a city or a region,and enhances its cultural image and status.Through analyzing the construction features and technical means of various ruins parks in Xi'an including Daming Palace National Heritage Park,Qujiangchi Ruins Park,Hanyao Ruins Park,Dacien Temple Ruins Park,Tang Dynasty City Wall Ruins Park,Emperor Qin Ⅱ Mausoleum Ruins Park and so on,a new model combining the site protection with city construction is presented.By integrating cultural relics preservation,heritage protection with innovation,a series of ruins parks processed with deep cultural connotation are constructed,which not only protects the relics and refreshes the city construction,but also well reflects the essence of traditional Chinese culture unique charm of ancient oriental civilization.The well combination of site protection and city construction improves the cultural image and status of the city,enhances the charm of public cultural space,promotes the development of heritage protection and secures more funds for urban and rural construction. 展开更多
关键词 xi’an CONSTRUCTION of ruins PARK HERITAGE protection City CONSTRUCTION
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达芬奇Xi系统机器人辅助后腹腔镜肾上腺切除术治疗肾上腺肿瘤的疗效观察 被引量:4
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作者 刘志飞 蔡启亮 +3 位作者 邢力永 朱研峰 孟建利 谢华 《中国临床医生杂志》 2023年第8期949-952,共4页
目的 探讨达芬奇Xi系统机器人辅助后腹腔镜肾上腺切除术治疗肾上腺肿瘤的临床效果。方法 选取2019年1月至2022年1月河北省唐山市人民医院收治并经病理确诊的肾上腺肿瘤患者97例进行回顾性研究,根据治疗方法分为机器人手术组46例(采用达... 目的 探讨达芬奇Xi系统机器人辅助后腹腔镜肾上腺切除术治疗肾上腺肿瘤的临床效果。方法 选取2019年1月至2022年1月河北省唐山市人民医院收治并经病理确诊的肾上腺肿瘤患者97例进行回顾性研究,根据治疗方法分为机器人手术组46例(采用达芬奇Xi系统机器人辅助后腹腔镜肾上腺切除术治疗)和传统腹腔镜手术组51例(采用传统后腹腔镜肾上腺切除术治疗)。比较两组手术相关指标,统计两组并发症情况、随访情况。结果 两组术中出血量、手术时间比较,差异无显著性(P>0.05);与传统腹腔镜手术组相比,机器人手术组肿瘤直径较大,中转开腹率、术后出血率降低,术后止痛剂使用次数更少,术后引流时间、术后住院时间、下床活动时间及术后胃肠功能恢复时间明显缩短,住院费用有所增加,差异有显著性(P<0.05)。与传统腹腔镜手术组相比较,机器人手术组术中并发症发生率明显降低,差异有显著性(P<0.05),而两组术后并发症发生率、术后血压改善情况、肿瘤复发率、是否需长期口服激素差异无显著性(P>0.05)。结论 达芬奇Xi系统机器人辅助后腹腔镜肾上腺切除术治疗肾上腺肿瘤,手术创伤小,术中并发症发生率低,患者恢复快,且不增加手术时间。 展开更多
关键词 肾上腺肿瘤 后腹腔镜肾上腺切除术 达芬奇xi系统机器人
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Key Points in the Supervision of Road Landscaping Project——A Case Study of the South 3^(rd) Ring Road in Yanta District of Xi'an City,China 被引量:1
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作者 弓弼 魏代谋 《Journal of Landscape Research》 2011年第6期71-74,共4页
Characteristics of road landscaping were analyzed,as a kind of "linear" landscaping,it could be classified into urban street landscaping,urban ring road and expressway landscaping.Differences between road la... Characteristics of road landscaping were analyzed,as a kind of "linear" landscaping,it could be classified into urban street landscaping,urban ring road and expressway landscaping.Differences between road landscaping projects and other garden landscaping projects or construction projects were analyzed.Landscaping project for the South 3rd Ring Road of Xi'an City(in Yanta District)was taken for an example to summarize construction experience,discuss present conditions and features of garden landscaping supervision in China.The artistic and physiological properties of garden landscaping,as well as the supervision during maintenance period were stressed,but it was also pointed out that garden landscaping supervision in China was actually not given sufficient attention.On this basis,key points in the supervision of road landscaping project were proposed:understanding design ideas,selection of landscape plants,quality control of concealed works,prevention and control of diseases and insects,construction safety management and overall image;only by effectively implementing these key points,a high-quality road landscaping project could be realized to improve the image of a city and beautify its environment. 展开更多
关键词 ROAD LANDSCAPING project Construction SUPERVISION The South 3rd RING ROAD of xi’an
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4种鬼针草与Xi莶草的TLC鉴别研究 被引量:3
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作者 霍德兰 孙永法 《时珍国医国药》 CAS CSCD 1998年第4期335-335,共1页
利用TLC的方法对4种鬼针草及Xi莶草进行了鉴别研究,为它们的准确鉴别提供依据。
关键词 鬼针草 狼把草 xi莶草 薄层层析 鉴别
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Protection of Historic and Cultural Heritage in the Urban Renewal of Xi'an City,China 被引量:1
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作者 张楠 张红娟 《Journal of Landscape Research》 2011年第11期7-10,共4页
Concept of urban renewal was elaborated,which for the protection of historic and cultural heritage not only provides a favorable opportunity of integrating neighboring environment and improving protection conditions,b... Concept of urban renewal was elaborated,which for the protection of historic and cultural heritage not only provides a favorable opportunity of integrating neighboring environment and improving protection conditions,but also imposes threats such as destroying its historic images and patterns,degrading of survival environment.To properly protect historic and cultural heritage in the unceasing urban renewal,and make it a significant resource and feature of the city but not a barrier of urban development,empirical analysis and theoretical research were adopted to analyze and study current conditions and problems of the protection of historic and cultural heritage in Xi'an City from the dimension of urban renewal concept and present urban renewal of Xi'an.Moreover,through summarizing successful experience of other regions,specific strategies were given to protect historic and cultural heritage of Xi'an City in its urban renewal more scientifically and reasonably. 展开更多
关键词 xi’an CITY Urban RENEWAL PROTECTION of HISTORIC and cultural heritage
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基于SAP XI的跨工厂应用整合架构的设计与开发
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作者 肖迎宾 庄文杰 邢阳 《烟草科技》 EI CAS 北大核心 2014年第3期24-28,共5页
为解决因系统平台不同造成的跨地区、跨工厂网络信息传输不稳定等问题,利用SAP XI和消息中间件技术构建了跨工厂应用整合架构。该架构以SAP XI作为信息加工转换和接收发送的枢纽,以中烟公司和工厂两级的消息中间件为基础构建传输通道,... 为解决因系统平台不同造成的跨地区、跨工厂网络信息传输不稳定等问题,利用SAP XI和消息中间件技术构建了跨工厂应用整合架构。该架构以SAP XI作为信息加工转换和接收发送的枢纽,以中烟公司和工厂两级的消息中间件为基础构建传输通道,实现了公司SAP ERP系统与下属各卷烟厂应用系统之间的一体化应用整合。应用效果表明,系统运行稳定可靠,数据处理准确高效,上下行数据传输成功率均为100%,数据传输平均用时分别为1.938 s和0.510 s,满足了业务运转需要,有效提升了企业信息化管理水平。 展开更多
关键词 烟草行业 信息化 SAP xi 集成整合 消息中间件 数据传输
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Analysis on Strategic Future of Application of Agricultural Ecological Source in Control on Agricultural Nonpoint Source Pollution in Xi River Area in Guangxi 被引量:1
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作者 刘永贤 《Agricultural Science & Technology》 CAS 2016年第1期201-203,共3页
Non-point source pollution has become a hot issue on aquatic ecological environment at home and abroad. The research analyzed the challenges confronted by Xi River and proposed to construct agricultural ecological sou... Non-point source pollution has become a hot issue on aquatic ecological environment at home and abroad. The research analyzed the challenges confronted by Xi River and proposed to construct agricultural ecological source in middle and upper reaches of the Xi River from the perspectives of scientific layout, legal construction, routine monitoring, technology integration, and coordination system in order to promote sustainable development of eco-environment in Xi River. 展开更多
关键词 Nonpoint source pollution Agriculture Aquatic environment xi River basin Agricultural ecological source
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噬菌体φ297切除酶(xis)基因的克隆和序列分析
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作者 翟静 曹奇志 +1 位作者 张媛英 张凤珍 《生物技术》 CAS CSCD 2005年第2期1-3,共3页
目的:克隆噬菌体φ297 切除酶(xis)基因,并对其进行遗传与变异研究。方法:提取埃希氏大肠杆菌O157:H7 菌株EH297染色体DNA,采用步移PCR方法寻找目的基因,并通过克隆、亚克隆、DNA测序等分子生物学方法获得切除酶基因,通过序列分析软件... 目的:克隆噬菌体φ297 切除酶(xis)基因,并对其进行遗传与变异研究。方法:提取埃希氏大肠杆菌O157:H7 菌株EH297染色体DNA,采用步移PCR方法寻找目的基因,并通过克隆、亚克隆、DNA测序等分子生物学方法获得切除酶基因,通过序列分析软件对此基因进行分析。结果:克隆获得噬菌体φ297编码的切除酶基因(xis)的完整序列,它的长度是255 bp,编码了一个84个氨基酸组成的蛋白质(Xis),将它们的序列与λ噬菌体的切除酶家族的其它成员进行了比较。其结果是噬菌体φ297的切除酶基因(xis)与噬菌体VT1-Sakai的切除酶基因(xis)只有4个核苷酸的不同,而Xis蛋白与噬菌体VT1-Sakai的Xis蛋白是一样的,与噬菌体933W的Xis蛋白只有47.2%的相似性。结论:噬菌体φ297编码的切除酶基因(xis)与λ噬菌体的切除酶基因同源。 展开更多
关键词 噬菌体ψ297 埃希氏大肠杆菌(EHEC)O157 Shiga毒素(Stx) 切除酶基因(xis) 特殊位点重组
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稻瘟病拮抗菌Xi-55菌株鉴定及其发酵条件 被引量:1
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作者 刘波微 彭化贤 +1 位作者 曹玉桃 席亚东 《中国生物防治》 CSCD 北大核心 2006年第S1期124-128,共5页
通过对采集样品中细菌的分离获得生防菌Xi-55,经纯化培养后观察形态特征和生理生化特征,经比较鉴定,确定生防菌Xi-55为枯草芽孢杆菌。通过田间试验测定,初步确定了枯草芽孢杆菌Xi-55菌株防治稻瘟病的效果为86%。对该菌株发酵条件进行了... 通过对采集样品中细菌的分离获得生防菌Xi-55,经纯化培养后观察形态特征和生理生化特征,经比较鉴定,确定生防菌Xi-55为枯草芽孢杆菌。通过田间试验测定,初步确定了枯草芽孢杆菌Xi-55菌株防治稻瘟病的效果为86%。对该菌株发酵条件进行了研究,确定出最佳发酵技术参数,为微生物农药的开发提供理论依据。 展开更多
关键词 稻瘟病 生防菌 发酵条件
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