发布求助
文献互助 智能选刊 最新文献

Acta Microbiologica Bulgarica最新文献

筛选
英文 中文
[The invasive properties of Escherichia coli O18 in relation to cell cultures and infections in inbred mice]. [大肠杆菌O18的侵袭性与近交系小鼠细胞培养和感染的关系]。
Acta Microbiologica Bulgarica Pub Date : 1990-01-01
S Nikolova, D Velianov, S Andreeva, D Kharbov, D Marcheva
{"title":"[The invasive properties of Escherichia coli O18 in relation to cell cultures and infections in inbred mice].","authors":"S Nikolova,&nbsp;D Velianov,&nbsp;S Andreeva,&nbsp;D Kharbov,&nbsp;D Marcheva","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Comparative analyses have been carried out on the dynamics of invasion of cell cultures from epithelioid (MK and HE-p-2) and fibroblast (mice fibroblasts) types with strain Escherichia coli 0 18 isolated and characterized earlier, as well as on the invasion of the viscera of inbred mice (BDF1) after subcutaneous (foot pad lesion test) and intravenous inoculation with the same strain. It was established that the realization of the invasion potential of E. coli 018 depends on the cell culture used: cell cultures of epithelioid type are much more sensitive. The development of the infectious process and the changes in the number of bacteria in the viscera of the inoculated mice for both ways of introduction of the agent were of the same type. The infectious process after subcutaneous inoculation was accompanied with serious orchitis and progressive inflammatory necrotic changes in the inoculated paws leading to demarcation of the whole limb.</p>","PeriodicalId":35526,"journal":{"name":"Acta Microbiologica Bulgarica","volume":"25 ","pages":"82-8"},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13352723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Production of Bacillus subtilis mutants by transformation crosses]. [通过转化杂交生产枯草芽孢杆菌突变体]。
Acta Microbiologica Bulgarica Pub Date : 1990-01-01
Z Aleksieva
{"title":"[Production of Bacillus subtilis mutants by transformation crosses].","authors":"Z Aleksieva","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A method for obtaining auxotrophic mutants for amino acids coding by regulatory region of cat 86 has been reported. A selection of Bacillus subtilis BR 151 mutants for studying the translational regulation of cat 86 has been carried out. The procedure described is very convenient for genetic analysis.</p>","PeriodicalId":35526,"journal":{"name":"Acta Microbiologica Bulgarica","volume":"26 ","pages":"73-6"},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13283786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[The demonstration of guanidine groups in the structure of the new antibiotic AK-165-3]. [新抗生素AK-165-3结构中胍基的论证]。
Acta Microbiologica Bulgarica Pub Date : 1990-01-01
V Ivanova, R Schlegel
{"title":"[The demonstration of guanidine groups in the structure of the new antibiotic AK-165-3].","authors":"V Ivanova,&nbsp;R Schlegel","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":35526,"journal":{"name":"Acta Microbiologica Bulgarica","volume":"25 ","pages":"16-23"},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13531409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ultrastructural changes in some pathogenic bacteria after treatment with ethylendiamintetraacetic acid. 某些致病菌经乙二胺乙酸处理后超微结构的改变。
Acta Microbiologica Bulgarica Pub Date : 1990-01-01
N Cherepova, D Veljanov, T Radoutcheva
{"title":"Ultrastructural changes in some pathogenic bacteria after treatment with ethylendiamintetraacetic acid.","authors":"N Cherepova,&nbsp;D Veljanov,&nbsp;T Radoutcheva","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The ultrastructure of Pseudomonas pseudomallei, Pseudomonas aeruginosa. Yersinia pseudotuberculosis, Salmonella typhimurium, Listeria monocytogenes was studied after treatment with EDTA. The study established that the most sensitive species were: Pseudomonas pseudomallei and Pseudomonas aeruginosa. In the case of Listeria monocytogenes changes were not observed. Typical ultrastructural changes in the cell wall and the cytoplasmic membrane were established by means of ultrathin sections, as well as with scanning electron microscopy of Pseudomonas pseudomallei and Pseudomonas aeruginosa.</p>","PeriodicalId":35526,"journal":{"name":"Acta Microbiologica Bulgarica","volume":"26 ","pages":"5-9"},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13283284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Genetic studies of a Bacillus subtilis producer of a milk-coagulating enzyme complex]. [一种产乳凝酶复合物的枯草芽孢杆菌的遗传研究]。
Acta Microbiologica Bulgarica Pub Date : 1990-01-01
Z Aleksieva, N Shivarova, Ts Nikoevska, T Antonova
{"title":"[Genetic studies of a Bacillus subtilis producer of a milk-coagulating enzyme complex].","authors":"Z Aleksieva,&nbsp;N Shivarova,&nbsp;Ts Nikoevska,&nbsp;T Antonova","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Dissociation is a phenomenon when from an initial bacterial population different forms in morphological, physiological aspects have been produced. For bacterial producers of biologically active substances the investigation of this process is important for industrial microbiology. Bacillus subtilis 76 is a producer of proteolytic enzyme complex with milk-coagulating effect. It dissociates in several different forms. Some of them (M, R, S) have been studied. They are plasmidless, prototrophs and tiostrepton-resistant. The results obtained are of a great importance for the future genetic experiments.</p>","PeriodicalId":35526,"journal":{"name":"Acta Microbiologica Bulgarica","volume":"26 ","pages":"67-72"},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13283785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[The immunomodulating properties of a macro glycopeptide isolated from serum. II. The activation of macrophages and polymorphonuclear cells]. 从血清中分离的巨量糖肽的免疫调节特性。2巨噬细胞和多形核细胞的活化。
Acta Microbiologica Bulgarica Pub Date : 1990-01-01
Kh Neĭchev, N Ivanovska, L Shirova, E Slavcheva, P Stoianova, D Georgiev, I Abrashev, P Velcheva, I Ianchev
{"title":"[The immunomodulating properties of a macro glycopeptide isolated from serum. II. The activation of macrophages and polymorphonuclear cells].","authors":"Kh Neĭchev,&nbsp;N Ivanovska,&nbsp;L Shirova,&nbsp;E Slavcheva,&nbsp;P Stoianova,&nbsp;D Georgiev,&nbsp;I Abrashev,&nbsp;P Velcheva,&nbsp;I Ianchev","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The stimulating properties of three fractions of a glucomacropeptide consisting of different carbohydrate and peptide components were studied. The phagocytic activity of polymorphonuclears was increased on the 24th hour and of macrophages on the 3rd day after application of the preparations to mice. In vitro fraction 3 stimulates the lysozyme activity and the synthesis of proteins and Clq of the macrophages complement. These properties of the cells are collaborated by the established ultrastructural changes. The different composition of the fractions determines their immunostimulating effect.</p>","PeriodicalId":35526,"journal":{"name":"Acta Microbiologica Bulgarica","volume":"26 ","pages":"19-25"},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13253509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electric field-induced fusion of yeast protoplasts. The role of different physical and chemical factors. 酵母原生质体的电场诱导融合。不同理化因素的作用。
Acta Microbiologica Bulgarica Pub Date : 1989-01-01
I C Tsoneva
{"title":"Electric field-induced fusion of yeast protoplasts. The role of different physical and chemical factors.","authors":"I C Tsoneva","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Electrofusion between cells of yeast strains with different genetic markers are investigated. The yield of fusion products depends strongly on the field conditions and the different compounds in the fusion media.</p>","PeriodicalId":35526,"journal":{"name":"Acta Microbiologica Bulgarica","volume":"24 ","pages":"53-60"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13836298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Yersinia enterocolitica--its multiplication on nutrient media containing rhamnose, raffinose and sodium succinate]. [小肠结肠炎耶尔森菌——在含有鼠李糖、棉子糖和琥珀酸钠的营养培养基上的繁殖]。
Acta Microbiologica Bulgarica Pub Date : 1989-01-01
T Raducheva, D Velianov, L Ilieva
{"title":"[Yersinia enterocolitica--its multiplication on nutrient media containing rhamnose, raffinose and sodium succinate].","authors":"T Raducheva,&nbsp;D Velianov,&nbsp;L Ilieva","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The kinetics of growth in vitro of strains Yersinia enterocolitica, serovars 0:3, 0:5, 0:8 and 0:9, on culture media containing rhamnose, raffinose and sodium succinate and at different temperatures of cultivation (4 degrees, 25 degrees and 37 degrees C) was characterized. It was established, that all the Yersinia enterocolitica serovars tested, cultivated at 25 degrees C, had the highest growth rate. A significant activation of growth at this temperature was observed when L-rhamnose and especially sodium succinate were used as substrates. The cultivation at 37 degrees C caused a sharp increase in the growth rate which, however, decreased at the end of the experiment (96th hour of cultivation), and certain stimulation of growth was observed on D-raffinose-containing medium. The growth of cells cultivated at 4 degrees C using L-rhamnose as substrate started after a lag-phase of 24 hours, which was better expressed for serovars 0:8 and 0:9. The results reported could be applied to experiments, using methods of isolation of Yersinia enterocolitica from different sources after cultivation at 4 degrees C on L-rhamnose-containing media.</p>","PeriodicalId":35526,"journal":{"name":"Acta Microbiologica Bulgarica","volume":"24 ","pages":"29-34"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13766685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[The in vitro multiplication kinetics of Yersinia pseudotuberculosis--the effect of rhamnose, raffinose and sodium succinate]. 伪结核耶尔森菌体外繁殖动力学——鼠李糖、棉子糖和琥珀酸钠的影响
Acta Microbiologica Bulgarica Pub Date : 1989-01-01
T Raducheva, D Velianov, L Ilieva
{"title":"[The in vitro multiplication kinetics of Yersinia pseudotuberculosis--the effect of rhamnose, raffinose and sodium succinate].","authors":"T Raducheva,&nbsp;D Velianov,&nbsp;L Ilieva","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The reproductive potentials of strains Yersinia pseudotuberculosis serovars I, II, III, IV and V cultivated at different temperatures on media containing rhamnose, raffinose and sodium succinate were examined comparatively. It was established that the growth of serovars I, II and III was activated by sodium succinate at temperatures 4 degrees and 25 degrees C, while serovars IV and V showed lower growth rate regardless of the substrate used. At 37 degrees C D-raffinose activated the growth of the cells of serovars IV and V. The studies on the effect of different substrates on the growth of Yersinia pseudotuberculosis in a wide temperature range acquire great importance for the investigating of the process of infection, revealing some aspects of the microorganism-macroorganism relationship.</p>","PeriodicalId":35526,"journal":{"name":"Acta Microbiologica Bulgarica","volume":"24 ","pages":"35-40"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13766687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A study on the antiviral action of a polyphenolic complex isolated from the medicinal plant Geranium sanguineum L. VIII. Inhibitory effect on the reproduction of herpes simplex virus type 1. 药用植物天竺葵多酚复合物抗病毒作用的研究。对1型单纯疱疹病毒繁殖的抑制作用。
Acta Microbiologica Bulgarica Pub Date : 1989-01-01
I Zgorniak-Nowosielska, B Zawilinska, N Manolova, J Serkedjieva
{"title":"A study on the antiviral action of a polyphenolic complex isolated from the medicinal plant Geranium sanguineum L. VIII. Inhibitory effect on the reproduction of herpes simplex virus type 1.","authors":"I Zgorniak-Nowosielska,&nbsp;B Zawilinska,&nbsp;N Manolova,&nbsp;J Serkedjieva","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The antiviral activity of a polyphenolic complex, isolated from a Bulgarian medicinal plant Geranium sanguineum L., on the reproduction of herpes simplex virus type 1 was studied. The substance inhibited the intracellular stages of viral replication and exhibited a virucidal effect.</p>","PeriodicalId":35526,"journal":{"name":"Acta Microbiologica Bulgarica","volume":"24 ","pages":"3-8"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13703303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信