Green Synthesized Zinc Oxide Nanoparticles with L. Root Extract and Their Antagonistic Activity Against Oral and Health-Threatening Pathogens.

Unlabelled: For the past few years, the synthesis of zinc oxide (ZnO) and other metal oxide nanoparticles has been carried out using plant tissues, extracts, and other plant parts. The green synthesis of zinc oxide nanoparticles has many advantages over other processes, and the primary areas of application are drug delivery, food additives, and surface coatings. The use of nanoparticles as an alternative antimicrobial agent in the health and biomedical sectors has increased significantly in recent years.

Polyphasic characterization and genomic insights into Nocardioides turkmenicus sp. nov. isolated from a desert soil.

Strain KC13, a novel desert-adapted, non-motile, Gram-stain-positive, rod-shaped, aerobic bacterium, was isolated from a soil sample collected from the Karakum Desert, Turkmenistan and characterised by a polyphasic approach. Phylogenetic analysis based on 16S rRNA sequences revealed that strain KC13 was a member of the genus Nocardioides, and formed a distinct cluster with Nocardioides luteus DSM 43366 (99.3% sequence identity), Nocardioides albus DSM 43109 (98.

Green Biosynthesis of Silver Nanoparticles from Olive and Walnut-Related Bacteria, Synthesis, Characterization, and Antimicrobial Activity.

Unlabelled: Many studies have demonstrated the effectiveness of various plant extracts in the synthesis of silver nanoparticles. The phytochemical components of plant extracts contain biodegradable agents necessary for the stabilization and synthesis of nanoparticles. However, extracellular components of microorganisms have been shown to have similar activity in recent years.

Saccharopolyspora soli sp. nov., isolated from Northern Cyprus soil.

A novel Gram-stain positive, aerobic, non-motile actinobacterium, designated strain K220, was isolated from soil collected from Cape Andreas (Zafer Burnu), Northern Cyprus, and subjected to a polyphasic taxonomic approach. The organism was shown to have phylogenetic, chemotaxonomic, cultural and morphological properties consistent with its classification in the genus Saccharopolyspora. 16S rRNA gene sequence analysis of strain K220 showed that it is closely related to the type strains of Saccharopolyspora maritima 3SS5-12, Saccharopolyspora kobensis JCM 9109 and Saccharopolyspora hirsuta ATCC 27875 with 97.

sp. nov., isolated from the top soil layer on basaltic material in Turkey.

An actinobacterium, designated 14C53, was isolated from a soil sample on basaltic material from Samsun, Turkey. The growth ranges for NaCl concentration and pH of strain 14C53 were quite limited and the growth temperature range of the strain was 20-37 °C, with an optimum at 28 °C. Phylogenetic analysis of 16S rRNA gene sequences revealed that strain 14C53 was most closely related to A8036 (98.

Saccharopolyspora karakumensis sp. nov., Saccharopolyspora elongata sp. nov., Saccharopolyspora aridisoli sp. nov., Saccharopolyspora terrae sp. nov. and their biotechnological potential revealed by genome analysis.

Exploration of unexplored habitats for novel actinobacteria with high bioactivity potential holds great promise in the search for novel entities. During the course of isolation of actinobacteria from desert soils, four actinobacteria, designated as 5K548, 7K502, 16K309 and 16K404, were isolated from the Karakum Desert and their bioactivity potential as well as taxonomic provenances were revealed by comprehensive genome analyses. Pairwise sequence analyses of the 16S rRNA genes indicated that the four strains are representatives of putatively novel taxa within the prolific actinobacterial genus Saccharopolyspora.

Comprehensive genome analysis of a novel actinobacterium with high potential for biotechnological applications, Nonomuraea aridisoli sp. nov., isolated from desert soil.

During a study to isolate such actinobacteria with unique metabolic potential, a novel actinobacterium, designated KC333, was isolated from a soil sample collected from the Karakum Desert, Turkmenistan. The taxonomic position of the strain was investigated using a polyphasic approach. Phylogenetic analysis of the 16S rRNA gene sequence showed that the strain was most closely related to Nonomuraea terrae CH32 (99.

sp. nov., isolated from soil.

A novel actinomycete, designated strain HC44, was isolated from a soil sample collected from Hacibektaş, Turkey, and characterized using a polyphasic approach. The strain had morphological characteristics and chemotaxonomic properties identical to those of members of the genus . Phylogenetic analyses based on 16S rRNA gene sequence comparisons revealed that HC44 clustered with members of the genus and the highest 16S rRNA gene sequence similarity values were obtained with NBRC 13094 (97.

Streptomyces boluensis sp. nov., isolated from lake sediment.

A novel Gram-stain positive, aerobic, non-motile actinobacterium, designated strain YC537, was isolated from lake sediment collected from Yenicaga Lake, Bolu, Turkey, and subjected to a polyphasic taxonomic approach. The organism had phylogenetic, chemotaxonomic, cultural and morphological properties consistent with its classification in the genus Streptomyces. 16S rRNA gene sequence analysis of strain YC537 showed that it is closely related to the type strain of Streptomyces ziwulingensis F22 (97.

Nonomuraea basaltis sp. nov., a siderophore-producing actinobacteria isolated from surface soil of basaltic parent material.

A Gram-stain-positive, aerobic, spore-forming actinobacterial strain, designated 160415, was isolated from a surface soil sample, which was formed on basaltic parent material, collected from Samsun, Turkey. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain 160415 clustered closely with species of the genus Nonomuraea, and showed the highest sequence similarity to Nonomuraea zeae NEAU-ND5, Nonomuraea candida HMC10 and Nonomuraea turkmeniaca DSM 43926 with 99.1%, 98.

Genome-based classification of three novel actinobacteria from the Karakum Desert: sp. nov., sp. nov. and sp. nov.

Three isolates, 5K138, 8K307 and KC603, with typical morphological characteristics of members of the genus were obtained during a study searching for novel actinobacteria with biosynthetic potential from the Karakum Desert. A polyphasic approach was adopted to determine taxonomic affiliations of the strains. The strains showed chemotaxonomic properties consistent with their classification as representing members of the genus such as ll-diaminopimelic acid in the cell wall peptidoglycan, diphosphatidylglycerol, phosphatidylglycerol and phosphatidylinositol as major polar lipids as well as MK-9(H) as a major menaquinone.

sp. nov., isolated from desert soil and reclassification of as a later heterotypic synonym of .

A novel actinobacterial strain, designated 13K301, was isolated from a soil sample collected from the Karakum Desert, Turkmenistan. The taxonomic position of strain 13K301 was revealed by using a polyphasic approach. On the basis of 16S rRNA gene sequence analysis, strain 13K301 belongs to the genus and had highest sequence similarity to '' S10 (99.

Isolation, plant growth-promoting traits, antagonistic effects on clinical and plant pathogenic organisms and identification of actinomycetes from olive rhizosphere.

Soil actinomycetes are a highly common group of bacteria and frequently studied as having secondary metabolites in the potential of producing the most preferred antagonistic content. Considering the continuous variation in soil structure, there is a potential for encountering different organisms. Almost all of antibiotic contents are produced by these bacteria and their importance increase.

Polyphasic classification of strains isolated from the Karakum Desert and description of sp. nov., sp. nov., sp. nov. and sp. nov.

Five actinobacteria isolates, KC201, KC401, KC310, KC712 and 6K102, were recovered from the Karakum Desert during an investigation of novel actinobacteria with biotechnological potential. A polyphasic approach confirmed the affiliation of the strains to the genus . The strains showed chemotaxonomic and morphological properties consistent with their classification in the genus .

sp. nov., isolated from the Karakum Desert.

An isolate, 13K206, with typical morphological characteristics of the genus was obtained during a study searching for novel actinobacteria with biosynthetic potential from the Karakum Desert. A polyphasic approach was adopted to determine taxonomic affiliation of the strain. The strain showed chemotaxonomical properties consistent with its classification in the genus such as - and 3-OH-Apm in the cell-wall peptidoglycan, xylose in whole-cell hydrolysate and diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylinositol as major polar lipids.

Kribbella turkmenica sp. nov., isolated from the Karakum Desert.

A novel actinobacterial strain, designated 16K104, was isolated from desert soil collected from the Karakum Desert and characterized using a polyphasic approach to clarify its taxonomic position. Strain 16K104 was found to have chemotaxonomic and morphological properties consistent with classification in the genus Kribbella. The strain shared the highest 16S rRNA gene sequence similarity with Kribbella albertanoniae BC640 (99.

Desertiactinospora gelatinilytica gen. nov., sp. nov., a new member of the family Streptosporangiaceae isolated from the Karakum Desert.

A novel, Gram-positive, spore-forming actinomycete, designated strain 7K107, was isolated from a soil sample collected from the Karakum Desert, Turkmenistan. Strain 7K107 forms extensively branched substrate mycelia and aerial mycelia which differentiate into short chains of spores. The novel strain contains meso-diaminopimelic acid as the diagnostic wall amino acid and glucose, galactose, madurose and ribose as whole cell sugars.

Synthesis, characterization and antibacterial activity of silver-doped TiO nanotubes.

One-dimensional titanium dioxide (TiO) nanotubes (TNTs) doped with silver (Ag) (% 5) were synthesized via two-step hydrothermal method. These nanotubes were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Raman spectroscopy, transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The impact of Ag-doped TiO nanotubes as antibacterial agents against three strains of Gram positive Staphylococcus aureus and a strain of Gram negative Escherichia coli was also investigated.

Nonomuraea insulae sp. nov., isolated from forest soil.

Strain H2R21, a novel actinobacterium, isolated from a forest soil sample collected from Heybeliada, Istanbul, Turkey, and a polyphasic approach was used for characterisation of the strain. Chemotaxonomic and morphological characterisation of strain H2R21 indicated that it belongs to the genus Nonomuraea. 16S rRNA gene sequence similarity showed that the strain is closely related to Nonomuraea purpurea 1SM4-01 (99.

Amycolatopsis cappadoca sp. nov., isolated from soil.

An Amycolatopsis strain, designated AG28, isolated from a soil sample collected from Acıgöl, Kapadokya, Turkey, was examined using a polyphasic taxonomic approach. Phylogenetic analysis based on an almost-complete 16S rRNA gene sequence showed that the strain is closely related to the type strains of Amycolatopsis deserti GY024 (97.1%), Amycolatopsis taiwanensis 0345 M-7 (96.

Kribbella sindirgiensis sp. nov. isolated from soil.

A Kribbella strain FSN23 was isolated from soil sample which was collected from Caygoren Dam lakeside located in Sındırgı, Turkey. The isolate was investigated using a polyphasic approach consisting of numeric, chemotaxonomic and molecular analysis. The isolate indicated chemotaxonomic, morphological and phylogenetic properties associated with members of the genus Kribbella.

Kribbella soli sp. nov., isolated from soil.

A novel actinobacterial strain, designated FMN22, was isolated from soil and characterised using a polyphasic approach. Strain FMN22 showed high 16S rRNA gene sequence similarity to Kribbella karoonensis Q41 (99.3%), Kribbella shirazensis UTMC 693 (99.

Streptomyces ovatisporus sp. nov., isolated from deep marine sediment.

The taxonomic position of a Gram-staining-positive strain, designated strain S4702T was isolated from a marine sediment collected from the southern Black Sea coast, Turkey, determined using a polyphasic approach. The isolate was found to have chemotaxonomic, morphological and phylogenetic properties consistent with its classification as representing a member of the genus Streptomyces and formed a distinct phyletic line in the 16S rRNA gene tree. S4702T was found to be most closely related to the type strains of Streptomyces marinus(DSM 41968T; 97.

Micromonospora profundi sp. nov., isolated from deep marine sediment.

A novel actinobacterial strain, designated DS3010T, was isolated from a Black Sea marine sediment and characterized using a polyphasic approach. The strain was shown to have chemotaxonomic, morphological and phylogenetic properties consistent with classification as representing a member of the genus Micromonospora. Comparative 16S rRNA gene sequence studies showed that the strain was most closely related to the type strains of Micromonospora saelicesensis (99.

Methicillin-resistant S. aureus colonization in intensive care unit patients: Early identification and molecular typing.

Introduction: Early detection of methicillin-resistant Staphylococcus aureus (MRSA) in colonized patients is very important for infection control procedures to prevent MRSA spread. We aimed to monitor MRSA carriage in intensive care unit (ICU) patients and to evaluate the speed and efficiency of conventional culture, immunological, chromogenic, and molecular methods together with genotyping.

Methodology: Nasal and axillar swab specimens were obtained from patients in the ICUs of the general surgery and neurosurgery wards in a tertiary hospital once a week over four weeks between December 2009 and July 2010.