期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
具有真细菌基因启动子活性的盐生盐杆菌质粒DNA片段 被引量:4
1
作者 孙广秀 江爱民 沈萍 《Acta Genetica Sinica》 SCIE CAS CSCD 1997年第4期380-384,共5页
利用大肠杆菌启动子探测质粒pKK232-8为载体、用两组限制性内切酶BamHI-SalI和HindⅢ-SalI分别消化盐生盐杆菌J7(Halobacteriumhalobium)的质粒pHH205,在体外进行重组,转... 利用大肠杆菌启动子探测质粒pKK232-8为载体、用两组限制性内切酶BamHI-SalI和HindⅢ-SalI分别消化盐生盐杆菌J7(Halobacteriumhalobium)的质粒pHH205,在体外进行重组,转化E.coliHB101感受态细胞,在含氨苄青霉素和氯霉素的选择平板上筛选转化子,并从随机挑选的20株转化子中,获得抗氯霉素水平达到110μg/ml的转化子T1和T2,所含重组质粒分别被命名为pJH和pJB。经限制性酶切分析及杂交分析表明,pJH质粒上插入了一段来源于pHH205质粒的DNA片段,其大小为800bp左右。通过重新转化实验进一步表明,该DNA片段在大肠杆菌中具有启动子功能,从而证明,在古细菌(盐生盐杆菌)的质粒DNA中存在具有真细菌(大肠杆菌)基因启动子活性的DNA片段。 展开更多
关键词 盐生盐杆菌 启动子活性 质粒DNA 真细菌基因
下载PDF
Invasive fungal infection in allogeneic hematopoietic stem cell transplant recipients: single center experiences of 12 years 被引量:3
2
作者 Ji-min SHI Xu-ying PEI +8 位作者 Yi LUO Ya-min TAN Ru-xiu TIE Jing-song HE Wei-yan ZHENG Jie ZHANG Zhen CAI Mao-fang LIN He HUANG 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 SCIE CAS CSCD 2015年第9期796-804,共9页
Invasive fungal infection (IFI) is a growing cause of morbidity and mortality among patients after allogeneic hematopoietic stem cell transplantation (allo-HSCT). We retrospectively reviewed the records of 408 pat... Invasive fungal infection (IFI) is a growing cause of morbidity and mortality among patients after allogeneic hematopoietic stem cell transplantation (allo-HSCT). We retrospectively reviewed the records of 408 patients un- dergoing alIo-HSCTs during the period November 1998 to December 2009, analyzed the incidence and risk factors of IFI, and examined the impact of IFI on overall survival. A total of 92 (22.5%) episodes suffered proven or probable IFI (4 patients were proven, 88 patients were probable). Candida was the most common pathogen for early IFI, and mold was the most frequent causative organism for late IFI. A prior history of IFI, human leukocyte antigen (HLA) mismatch, long-time neutropenia, and acute graft-versus-host-disease (GVHD) were risk factors for early IFI. A prior history of IFI, corticosteroid therapy, cytomegalovirus (CMV) disease, and chronic GVHD were risk factors for late IFI. IFI-related mortality was 53.26%. The 12-year overall survival (OS) rate for IFI was significantly lower than that of patients without IFI (41.9% vs. 63.6%, P〈0.01). 展开更多
关键词 nvasive fungal infection AIIogeneic hematopoietic stem cell transplantation INCIDENCE Risk factors
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部