Mikrobiologicheskii zhurnal最新文献

[The count and distribution of saprophytic bacteria and bacteria of the E. coli group in the water of Odessa Bay and the adjacent waters]. 敖德萨湾及邻近水域腐生菌和大肠杆菌群的数量及分布。

Mikrobiologicheskii zhurnal Pub Date : 1993-05-01

N G Teplinskaia, L E Nizhegorodova, L M Nidzvetskaia

{"title":"[The count and distribution of saprophytic bacteria and bacteria of the E. coli group in the water of Odessa Bay and the adjacent waters].","authors":"N G Teplinskaia, L E Nizhegorodova, L M Nidzvetskaia","doi":"","DOIUrl":"","url":null,"abstract":"The quantity and distribution of heterotrophic and enteric bacteria as indicators of the human activity influence on the marine ecosystem have been studied in water thickness of the Odessa Bay. It has been established that in the late autumn period the average quantity of heterotrophic bacteria in Bay waters is 6500 cells/ml and the number of the enteric ones--2400 cells/l. The spatial distribution of the heterotrophic bacterioplankton was mosaic and a tendency to decrease their quantity while moving away from the shore was not observed. This indicated the absence of the shore flow influence on the distribution of heterotrophic bacteria. On the contrary, the number of enteric bacteria significantly decreased with an increase of the distance from the shore, but on the greater part of the Bay they were absent at all. As to the vertical distribution of the heterotrophic bacteria quantity their maximum was in the water layer (0.5) below the surface, whereas the distribution of enteric bacteria did not correspond to this rule. Proceeding from the number of heterotrophic bacteria in the late autumn period waters of the Odessa Bay can be characterized as mesoeutrophic and according to the value of coli-index--as mesosaprobic ones.","PeriodicalId":76162,"journal":{"name":"Mikrobiologicheskii zhurnal","volume":"55 3","pages":"7-11"},"PeriodicalIF":0.0,"publicationDate":"1993-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19342564","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

[Inhibitors of nucleic acid synthesis as a means of identifying the forms of DNA-dependent DNA polymerases in Acholeplasma laidlawii PG-8 and of determining their functions]. [核酸合成抑制剂，作为一种鉴定莱氏体PG-8中DNA依赖的DNA聚合酶形式和确定其功能的手段]。

Mikrobiologicheskii zhurnal Pub Date : 1993-05-01

I G Skripal', S V Bezuglyĭ, V V Babichev

{"title":"[Inhibitors of nucleic acid synthesis as a means of identifying the forms of DNA-dependent DNA polymerases in Acholeplasma laidlawii PG-8 and of determining their functions].","authors":"I G Skripal', S V Bezuglyĭ, V V Babichev","doi":"","DOIUrl":"","url":null,"abstract":"Antibiotics, inhibitors of nucleic acids' synthesis from the group of chromomycins (olivomycin of sodium salt), anthracyclines (carminomycin and doxorubicin) and streptonigrin (bruneomycin) have been studied for their effect on DNA synthesis in vitro performed by DNA polymerases (1st and 2nd forms) of Acholeplasma laidlawii PG-8. It has been stated that olivomycin inhibits the function of both the first and second forms of DNA polymerases in proportion to an increase of the antibiotic concentration in the medium. Carminomycin in the concentration of about 1 microgram/ml almost completely inhibited the activity of both DNA polymerases. However, doxorubicin also belonging to the group of anthracyclins completely inhibited the activity of the first form of DNA polymerase in the concentration of 1 microgram/ml and practically has no effect in the concentration up to 100 micrograms/ml on the activity of the second form possessing 3'-->5'-function. Streptonigrin also proved to be suitable for differentiate the forms of DNA polymerases and to determine their functions. The first form of DNA polymerase with 5'-->3'-polymerase and exonuclease functions was not sensitive by this antibiotic in the concentration of 1000 micrograms/ml, while the activity of the second form of DNA polymerase with 3'-->5'-exonuclease functions was fully inhibited by this concentration of the antibiotic in the medium. The combination of doxorhubicin and streptonigrin in the medium can be used to determine the form of DNA polymerases and to identify their 5'-->3'- or 3'-->5'-exonuclease function and for selectivity inhibition of the function of one or another DNA polymerase in the medium.","PeriodicalId":76162,"journal":{"name":"Mikrobiologicheskii zhurnal","volume":"55 3","pages":"24-30"},"PeriodicalIF":0.0,"publicationDate":"1993-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19340601","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

D. K. Zabolotny Institute of Microbiology and Virology of the Academy of Sciences of the Ukraine (to the 65th anniversary of foundation). 乌克兰科学院微生物和病毒学研究所(成立65周年)。

Mikrobiologicheskii zhurnal Pub Date : 1993-05-01

I G Skripal'

引用次数: 0

[The growth and sporulation of Bacillus subtilis under different aeration conditions]. [不同曝气条件下枯草芽孢杆菌的生长和产孢]

Mikrobiologicheskii zhurnal Pub Date : 1993-05-01

V V Smirnov, A I Osadchaia, V A Kudriavtsev, L A Safronova

{"title":"[The growth and sporulation of Bacillus subtilis under different aeration conditions].","authors":"V V Smirnov, A I Osadchaia, V A Kudriavtsev, L A Safronova","doi":"","DOIUrl":"","url":null,"abstract":"The dynamics of accumulation of Bacillus subtilis 39 cells and spores under different conditions of aeration has been studied. It is shown possible to intensify the process of growth, biomass accumulation and sporulation of bacteria using aeration conditions. The growth of cells of the studied bacilli proceeds under conditions of providing the culture with oxygen according to its real demands for the whole period of fermentation. The mathematical models have been obtained which connect the aeration conditions with the rate of biomass accumulation and sporulation of the studied bacteria. It has been stated that with an increase of aeration the yield of microbic cells, degree of using the substrate by them as well as the specific growth rate become higher. Intensive aeration 4.4 = 5.8 g O2/l.h promotes the creation of the most optimal conditions for the growth of bacteria. While deteriorating the aeration to 3.2 g O2/l.h and over, the specific growth rate and yield of viable cells decrease. The optimal conditions of air feed and medium agitation rate decrease the duration of fermentation exerting no effect on the final yield of biomass. It is shown that yield of biomass and spores depends on the growth phase.","PeriodicalId":76162,"journal":{"name":"Mikrobiologicheskii zhurnal","volume":"55 3","pages":"38-44"},"PeriodicalIF":0.0,"publicationDate":"1993-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19340603","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 interaction of pathogenic microorganisms with the sorbent polymethylsiloxane]. 【病原微生物与吸附剂聚甲基硅氧烷的相互作用】。

Mikrobiologicheskii zhurnal Pub Date : 1993-05-01

I G Dikova, O I Il'chenko, V I Ruban, I M Samodumova, L F Sidel'nikova

引用次数: 0

[The use of the polymerase chain reaction method in studying the causative agents of diphtherial infection]. 聚合酶链反应法在白喉感染病原研究中的应用

Mikrobiologicheskii zhurnal Pub Date : 1993-05-01

M I Zhiravetskiĭ

引用次数: 0

[The physiological-biochemical properties of Klebsiella pneumoniae strains of different origins]. [不同来源肺炎克雷伯菌菌株的生理生化特性]。

Mikrobiologicheskii zhurnal Pub Date : 1993-05-01

E A Semenova, E I Bel'kova, V N Pishchik, G N Koval', N R Vasser, I I Cherniaeva, A I Turianitsa, L A Smirnova