Browsing by Author "Ozdemir, K."

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Antibacterial Activity of Some 4-Pyridinone Derivatives Synthesized From 4-Pyrones
(Asian Journal of Chemistry, 2008) Atalan, E.; Biyik, Halil; Batal, H.; Ozdemir, K.
Antibacterial activity of total 11newly synthesized compounds of 4-pyrone and 4-pyridinone derivatives were determined against standard bacterial test microorganisms by the tube dilution technique. Most of the compounds, except compound 11, exhibited antimicrobial activity towards the gram-negative bacterium Escherichia coli, while other compounds inhibited either 1 or 2 or 3 the growth of test microorganisms. Antibacterial activities of the compounds were exhibited strong activity and some were moderate activity while none of compounds did not inhibit the growth of S. aureus, S. pyogenes, E. facealis and B. subtilis.
Antibacterial Activity of Some 4-Pyridinone Derivatives Synthesized From 4-Pyrones (Vol 20, Pg 25, 2008)
(Asian Journal of Chemistry, 2008) Atalan, E.; Biyik, Halil; Battal, H.; Ozdemir, K.
Identification of Biodiversity of Some Streptomyces Species and Determination of a Restriction Fragment Length Polymorphism (Rflp) Profile of 16s Rdna Gene Region
(Medwell Journals, 2014) Ozdemir, K.; Ogun, E.; Ertas, M.; Acar, S.; Atalan, E.
In this study, soil samples from the roots and peripheral regions of some agricultural plant species growing in the Van region (such as sainfoin, bean, malus, wheat and sugar beet) were collected between May and June 2004 and 139 strains of Streptomyces bacteria were isolated from these samples. Moreover, researchers determined the physicochemical characteristics of these soil samples. Streptomyces bacteria were color-grouped and the Diaminopimelic Acid (DAP) forms were detected followed by the determination of then phenotypic characteristics. When these isolates were divided into 39 color groups, 20 strains were found to contain L-DAP and therefore were confirmed as members of the genus Streptomyces. The species were identified using the TAXON Software and similarity dendrograms were constructed by the Unweighted Pair-Group Method with an Arithmetic average (UPGMA) cluster analysis using the Multi-Variate Statistical Package (MVSP 3.1). Genomic DNA was isolated from these bacteria and 16S rDNA gene was amplified by PCPv followed by restriction digestion with Bspl43I, Haelll, Mnll and SphI for Restriction Fragment Length Polymorphism (RFLP) analysis. In the dendrogram obtained at the end of the RFLP analysis, four groups of two or more members and six 1 -member groups were established according to the similarity ratio criterion. © Medwell Journals, 2014.
Use of Random Amplified Polymorphic Dna Pcr To Distinguish Micromonospora Species Isolated From Soil
(Medwell Journals, 2014) Ertas, M.; Ozdemir, K.; Atalan, E.
Recently with the advancement of molecular methods, studies that determine intraspecific genetic polymorphisms have yielded substantial results. The aim of this study was to use Random Amplified Polymorphic DNA PCR (RAPD-PCR) analysis to determine the differences among Micromonospora species isolated from the soil. M3 medium with antibiotics was used to isolate the species from the soil and 65 Micromonospora species were identified. Total DNA analysis was performed for the different color groups which were obtained as a result analysis of the species. Sm5R, Sm6F, DAF4, Ml 3, 27F and 1492R primers were used for RAPD-PCR analysis and the band profiles of the species were obtained. The dendrogram generated according to the simple matching coefficient method clearly showed the differences detected among the species. A total of seven groups were identified along with two main groups. Five of these groups had a single member, one had 3 and one had 2 members. © Medwell Journals, 2014.