Folia Microbiologica

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Comparison of genetic variability between Czech and foreign isolates of phytopathogenic bacteriaClavibacter michiganensis subsp.sepedonicus by Rep-PCR technique
Folia Microbiologica - Tập 47 - Trang 450-454 - 2008
J. Fousek, I. Mráz, K. Petrzik
Repetitive-sequence-based polymerase chain reaction (Rep-PCR) method was used for analysis of genetic variability among bacterial populations from different world locations. Collection of 26 Czech and 13 foreign strains ofClavibacter michiganensis subsp.sepedonicus was amplified using BOX primer targeting to repetitive motif occurring in eubacterial genomes. Genetic fingerprints were visually comp...... hiện toàn bộ
The induction of pigmentation change in a non-acid-fast strain ofMycobacterium phlei by ultraviolet radiation
Folia Microbiologica - Tập 12 - Trang 417-421 - 1967
J. Koníček, I. Málek
Five scotochromogenic mutants and 11 achromogenic mutants were induced by UV irradiation of the non-acid-fast photochromogenic PN strain ofMycobacterium phlei. Spontaneous scotochromogenic and achromogenic mutants were not obtained. Colonies of the scotochromogenic mutants are orange, except for one mutant which is ochre. Three mutants are resistant to STM. Out of 11 achromogenic mutants 3 were in...... hiện toàn bộ
The use of ethyl methanesulfonate for the induction of mutants inMycobacterium phlei PA
Folia Microbiologica - Tập 14 - Trang 470-474 - 1969
M. Koníčková-Radochová, I. Málek
The mutagenic effect of ethyl methanesulfonate in a concentration of 0.2m on a prototrophic, acid-fast strainMycobacterium phlei PA was studied by following the induction of changes of three genetic markers: prototrophy to auxotrophy and sensitivity to two antituberculosis drugs (INH and STM) to resistence. Ethylmethanesulfonate was found to be a very effective mutagen in all three cases. Thirty a...... hiện toàn bộ
Activity and cellular localization of amylases of rabbit cecal bacteria
Folia Microbiologica - - 2006
K. Sirotek, M. Marounek, O. Suchorská
Study of the oxygen effect during growth of a bacterial culture
Folia Microbiologica - Tập 11 - Trang 277-281 - 1966
Milena Vízdalová
In study of the oxygen effect in relation to the growth curve ofEscherichia coli B, its size was found to be correlated to the stage of growth at which the bacteria were irradiated. The lowest dose reduction factor value (DRF = 1.5) was found with bacteria irradiated at the outset of the logarithmic phase and the highest value (DRF = 2.7) with bacteria in the stationary phase. This phenomenon was ...... hiện toàn bộ
What are secondary metabolites?
Folia Microbiologica - Tập 24 - Trang 435-443 - 1979
H. Zähner
Hoạt động kháng khuẩn và hiệu ứng đồng hợp của một số flavonoid đã thay thế Dịch bởi AI
Folia Microbiologica - Tập 53 - Trang 23-28 - 2008
M. A. Alvarez, N. B. Debattista, N. B. Pappano
Các chalcone, flavone và flavanone thay thế tự nhiên và tổng hợp đã được thử nghiệm để đánh giá hoạt động kháng khuẩn. Để xác định hiệu ứng đồng hợp, các kết hợp mới của các flavonoid đã thay thế chống lại Staphylococcus aureus, Escherichia coli và Enterobacter aerogenes đã được kiểm tra. Kết quả cho phép chúng tôi thiết lập các mối quan hệ giữa hiệu ứng kháng khuẩn của các hợp chất và cấu trúc mà...... hiện toàn bộ
#flavonoids #antibacterial activity #Staphylococcus aureus #Escherichia coli #Enterobacter aerogenes #synergism
Morphological variability in selected heterocystous cyanobacterial strains as a response to varied temperature, light intensity and medium composition
Folia Microbiologica - Tập 53 - Trang 333-341 - 2008
E. Zapomělová, P. Hrouzek, K. Řeháková, M. Šabacká, M. Stibal, L. Caisová, J. Komárková, A. Lukešová
The effect of temperature, light and nutrient composition on morphological traits was determined in seven nostocacean cyanobacteria (Anabaena planctonica, A. sphaerica var. conoidea, A. spiroides, Aphanizomenon gracile, Nostoc sp., Scytonema sp., and Tolypothrix sp.). Their morphological variability was high but only some of the features showed changes reflecting varied growth conditions. The freq...... hiện toàn bộ
Optimizing recombinant production of L-asparaginase 1 from Saccharomyces cerevisiae using response surface methodology
Folia Microbiologica -
Vida Ebrahimi, Atieh Hashemi
Inhibition of susceptible water soaking and/or hypersensitive reaction in cotton by exopolysaccharide of avirulentXanthomonas campestris pv.malvacearum
Folia Microbiologica - Tập 36 - Trang 173-176 - 1991
S. G. Borkar, J. P. Verma
The exopolysaccharide (EPS) of avirulentXanthomonas campestris pv.Malvacearum race-32 did not contain the watersoaking (WS)— inducing factor but contained necrotic reaction (NR)-inducing factor and induced NR on resistant cotton (cv. 101-102B) on which the viable cells of the same avirulent race-32 produced hypersensitive reaction (HR). NR and HR were differentiated on the basis of the induction p...... hiện toàn bộ
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