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Articles 31 - 60 of 103
Full-Text Articles in Life Sciences
Phylogenetic Characterization, Antimicrobial Susceptibilities, And Mechanisms Of Resistance In Bacteria Isolates From A Poultry Waste-Polluted River, Southwestern Nigeria, Olawale Olufemi Adelowo, Obasola Ezekiel Fagade
Phylogenetic Characterization, Antimicrobial Susceptibilities, And Mechanisms Of Resistance In Bacteria Isolates From A Poultry Waste-Polluted River, Southwestern Nigeria, Olawale Olufemi Adelowo, Obasola Ezekiel Fagade
Turkish Journal of Biology
Bacteria resistance to antibiotics has become a worldwide problem impacted partly by antibiotics use in livestock production. The present study investigated the pattern and mechanisms of resistance in 21 bacteria species isolated from a river used as a waste-dump by a poultry farm in Ogbomoso, southwestern Nigeria. Bacteria were isolated on nutrient agar supplemented with 50 µg/mL of tetracycline, their identities were determined by PCR amplification, and sequencing of their 16s rRNA genes and their susceptibility to 6 antimicrobials determined by broth dilution. The molecular basis of resistance among the isolates was also investigated by the PCR amplification of class …
Table Of Contents
Journal of the South Carolina Academy of Science
No abstract provided.
Bioactive Compounds From Discarded Mushroom Beds, Svsssl Hima Bindu Nidadavolu, Ram Prasad Metuku, Samatha Burra, Rajitha Byram, Singara Charya Maringanti
Bioactive Compounds From Discarded Mushroom Beds, Svsssl Hima Bindu Nidadavolu, Ram Prasad Metuku, Samatha Burra, Rajitha Byram, Singara Charya Maringanti
Turkish Journal of Biology
Discarded dried button, dried oyster, and fresh button mushroom beds were examined for their bioactive compounds and industrial enzymes. Levels of reducing sugars and total sugars were high in all mushroom beds. Carboxymethyl cellulase activity was higher (920 µg/mL) in the dried oyster mushroom bed extract. Schizophyllum commune, Fomitopsis feei, Trametes gibbosa, and Trametes elegans were grown on direct mushroom bed extract, 0.2% glucose-containing mushroom bed extract, and common production medium for determination of growth and lignolytic activities. Since lignolytic activities were high with the direct mushroom bed extract, this medium was further diluted to 1:1 and 1:2 ratios and …
Effects Of Drosophila Ribosomal Protein S6 Kinase On Wing Growth, M. J. Stewart, J. L. Hunt
Effects Of Drosophila Ribosomal Protein S6 Kinase On Wing Growth, M. J. Stewart, J. L. Hunt
Journal of the Arkansas Academy of Science
In multicellular animals, organ size, cell size and total organism size are regulated by signaling through the insulin receptor and TOR signaling pathways. The ribosomal protein S6 kinase is a key component of these pathways. It has been shown that mice or Drosophila lacking this kinase have a reduced body size that is associated with a decrease in cell size. Ectopic expression of activated or dominant negative transgenic variants of the Drosophila homolog of ribosomal S6 kinase (dS6K) has been shown to cause phenotypes that are consistent with a role for dS6K in growth, but whether the phenotypes were due …
Genotoxic And Mutagenic Effects Of Aqueous Extract From Aerial Parts Of Achillea Teretifolia, Di̇lek Akyil, Sedat Oktay, Recep Li̇man, Yasi̇n Eren, Muhsi̇n Konuk
Genotoxic And Mutagenic Effects Of Aqueous Extract From Aerial Parts Of Achillea Teretifolia, Di̇lek Akyil, Sedat Oktay, Recep Li̇man, Yasi̇n Eren, Muhsi̇n Konuk
Turkish Journal of Biology
Genotoxic and mutagenic effects of aqueous extract from aerial parts of Achillea teretifolia (At-ext) were investigated using both Allium cepa root meristematic cells and a short-term mutation assay in Salmonella typhimurium with TA98 and TA100 strains in the presence or absence of S9 mix, respectively. In the Allium tests, EC_{50} value was determined as 50 g/L, and 0.5 × EC_{50}, EC_{50}, and 2 × EC_{50} concentrations of At-ext were applied to onion tuber roots. Methyl methane sulfonate (MMS, 10 ppm) and distilled water were used as positive and negative controls, respectively. The mitotic index (MI) increased in all concentrations in …
Investigation Of Genetic Variation In Tunisian Date Palm (Phoenix Dactylifera L.) Cultivars Using Issr Marker Systems And Their Relation With Fruit Characteristics, Hammadi Hamza, Mohamed Ali Benabderrahim, Mokhtar Elbekkay, Guasmi Ferdaous, Tebra Triki, Ali Ferchichi
Investigation Of Genetic Variation In Tunisian Date Palm (Phoenix Dactylifera L.) Cultivars Using Issr Marker Systems And Their Relation With Fruit Characteristics, Hammadi Hamza, Mohamed Ali Benabderrahim, Mokhtar Elbekkay, Guasmi Ferdaous, Tebra Triki, Ali Ferchichi
Turkish Journal of Biology
Phoenix dactylifera L. was introduced in Tunisia a very long time ago and plays an important socioeconomic role, especially in the south of the country. Genetic diversity and relationships among 26 cultivars were assessed with 7 ISSR primers. A total of 43 amplified bands were obtained. Principal component analyses based on Nei genetic distances showed no geographical separation with the exception of the Dhahbi cultivar, which has a limited geographical distribution. A group of cultivars that are also phonetically clustered was distinguished. These cultivars have a common maturity period and a common fruit consistency. The Mantel test emphasizes a significant …
Colonization Of Mycobacterium Phlei In The Rhizosphere Of Wheat Grown Under Saline Conditions, Dilfuza Egamberdieva
Colonization Of Mycobacterium Phlei In The Rhizosphere Of Wheat Grown Under Saline Conditions, Dilfuza Egamberdieva
Turkish Journal of Biology
One of the natural reservoirs of potentially human-pathogenic bacteria is believed to be the rhizosphere. The aim of the present work was to test nontuberculous mycobacterium Mycobacterium phlei MbP18 for its ability to colonize the rhizosphere of wheat and to evaluate its effect on plant growth under saline conditions. In competitive wheat root tip colonization assays, M. phlei MbP18 showed poor competitive colonization of the wheat rhizosphere compared to the reference strain. The strain produced lipase, amylase, cellulase, and pectinase and grew well in the presence of high salt (up to 4% NaCl) and at high temperatures (up to 40 …
Biomarkers Of Petroleum Contamination In The Digestive Gland Of Perna Viridis (L.), Xivanand Narayan Verlecar, Karmabeer Jena, Somshekher Raghoba Desai, Priya Brata Das, Gagan Bihari Nityananda Chainy
Biomarkers Of Petroleum Contamination In The Digestive Gland Of Perna Viridis (L.), Xivanand Narayan Verlecar, Karmabeer Jena, Somshekher Raghoba Desai, Priya Brata Das, Gagan Bihari Nityananda Chainy
Turkish Journal of Biology
Oxidative stress responses were evaluated in the digestive gland tissue of Perna viridis exposed to water-accommodated fractions (WAFs) of petrol and diesel at 0.5% and 5% concentrations over 5-, 10-, and 15-day periods. Increased lipid peroxidation, protein carbonyl, DNA integrity, and hydrogen peroxide in WAF-exposed specimens are indicative of oxidative damage due to dissolved petroleum extracts. A consistent increase in superoxide dismutase, catalase, glutathione peroxidase, glutathione reductase, glutathione-S-transferase, reduced glutathione, and ascorbic acid in WAF-exposed specimens signify the importance of antioxidants in protecting the cell against the oxidative damage arising from petroleum contamination. The responses of field specimens collected from …
Genetic Variability In Grapevine Virus A From Vitis Vinifera L. × Vitis Labrusca L. In Sichuan, China, Jianhui Wang, Dehui Xi, Jianjun Liu, Keling Chen, Hongwen Li, Xiao Liu, Shu Yuan, Sezai̇ Erci̇şli̇, Honghui Lin
Genetic Variability In Grapevine Virus A From Vitis Vinifera L. × Vitis Labrusca L. In Sichuan, China, Jianhui Wang, Dehui Xi, Jianjun Liu, Keling Chen, Hongwen Li, Xiao Liu, Shu Yuan, Sezai̇ Erci̇şli̇, Honghui Lin
Turkish Journal of Biology
Grapevine virus A (GVA) has a quasispecies nature and is closely associated with the rugose-wood disease complex of Vitis vinifera L. In the different growing regions of table grape in Sichuan, southwest China, the incidence of GVA infection was found to be 16.9% by ELISA detection among 178 grape plants (Vitis vinifera L. × Vitis labrusca L.). The results of restriction fragment length polymorphism (RFLP) studies on the polymerase chain reaction (PCR) products of a total of 139 plasmids, cloned from 15 GVA isolates, suggested that the GVA isolates contained highly divergent variants. The plasmids from each GVA isolate that …
Molecular Characterization Of Phylogeneticrelationships In Fritillaria Species Inferred From Chloroplast Trnl-Trnf Sequences, Mi̇ne Türktaş, Meral Aslay, Erdal Kaya, Fahri̇ye Ertuğrul
Molecular Characterization Of Phylogeneticrelationships In Fritillaria Species Inferred From Chloroplast Trnl-Trnf Sequences, Mi̇ne Türktaş, Meral Aslay, Erdal Kaya, Fahri̇ye Ertuğrul
Turkish Journal of Biology
The genus Fritillaria embraces about 165 taxa in the family Liliaceae. In this study, the molecular phylogenetic relationships between 10 Fritillaria taxa were presented. Fritillaria spp. were collected from their natural habitats, and specimens with different morphological features were obtained via selective breeding. Specimens with the desired characters were presented as promising candidate cultivars for ornamental use. Phylogenetic analysis was based on DNA sequences of the chloroplast trnL-trnF region. The phylogeny was constructed using the neighbor joining, maximum parsimony, maximum likelihood, and Bayesian inference methods. The data showed that the examined Fritillaria spp. were evidently diverged into 2 Fritillaria subgenera. …
Antihyperglycemic, Antioxidant And Cytotoxic Activities Of Alocasia Macrorrhizos (Linn.) Rhizomes Extract, Md Masudur Rahman, Md. Aslam Hossain, Saiful Alam Siddique, Kaishar Parvej Biplab, Md. Helal Uddin
Antihyperglycemic, Antioxidant And Cytotoxic Activities Of Alocasia Macrorrhizos (Linn.) Rhizomes Extract, Md Masudur Rahman, Md. Aslam Hossain, Saiful Alam Siddique, Kaishar Parvej Biplab, Md. Helal Uddin
Turkish Journal of Biology
Alocasia macrorrhizos (L.) (Araceae), a coarse and erect plant that is widely cultivated to be eaten as a vegetable throughout Bangladesh, has been reported to possess a number of medicinal properties. The antihyperglycemic, antioxidant, and cytotoxic effects of the methanol extract of A. macrorrhizos rhizomes were investigated. The extract was given at a single dose (250 and 500 mg/kg) in alloxan-induced hyperglycemic mice. The extract at 500 mg/kg produced a significant (P < 0.05) decrease in the blood glucose level (55.49%) at 8 h of treatment when compared with the control and was comparable with the reference drug, metformin. The extract was also subjected to antioxidant potentiality and brine shrimp lethality bioassays. The IC_{50} value of the extract was 693.0 \mug/mL and the LC_{50} was 188.14 \mug/mL.
Evaluation Of Biological Activities Of Goldmoss Stonecrop (Sedum Acre L.), Milan Stankovic, Ivana Radojevic, Milena Curcic, Sava Vasic, Marina Topuzovic, Ljiljana Comic, Snezana Markovic
Evaluation Of Biological Activities Of Goldmoss Stonecrop (Sedum Acre L.), Milan Stankovic, Ivana Radojevic, Milena Curcic, Sava Vasic, Marina Topuzovic, Ljiljana Comic, Snezana Markovic
Turkish Journal of Biology
In vitro antioxidant, antimicrobial, and antiproliferative activities of methanol, acetone, and ethyl acetate extracts of Sedum acre L. were determined. Their total phenolic contents as well as the concentrations of flavonoids were also evaluated. The total phenolic content was determined with Folin-Ciocalteu reagent and it ranged between 18.25 to 181.75 mg gallic acid/g. The concentration of flavonoids in various extracts of S. acre was determined by using a spectrophotometric method with aluminum chloride and the obtained results varied from 8.42 to 173.42 mg rutin/g. Antioxidant activity was monitored spectrophotometrically and expressed in terms of IC_{50} (\mug/mL), and its values ranged …
Antioxidant And Acetylcholinesterase Inhibitory Potential Of Arnica Montana Cultivated In Bulgaria, Dimitrina Zheleva Dimitrova, Vessela Balabanova
Antioxidant And Acetylcholinesterase Inhibitory Potential Of Arnica Montana Cultivated In Bulgaria, Dimitrina Zheleva Dimitrova, Vessela Balabanova
Turkish Journal of Biology
The antioxidant and acetylcholinesterase inhibitory potential of methanol extract from Arnica montana cultivated in Bulgaria was evaluated. For the determination of antioxidant activity 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) di-ammonium salt (ABTS) free radicals, and ferric reducing antioxidant power (FRAP) assay were used. Modified Ellman's colorimetric method was used for quantitative assessment of acetylcholinesterase inhibition potential. Butylated hydroxytoluene (BHT) and galantamine hydrobromide were used as positive controls, respectively. In addition, total polyphenols and tannins, flavonoids, hydroxycinnamic derivatives, and sesquiterpene lactones were determined using Folin-Ciocalteu reagent, AlCl_3, Na_2MoO_4, and m-dinitrobenzene, respectively. The results demonstrated that Arnica extract has strong antioxidant activity and moderate …
A Comparison Of Major Taste- And Health-Related Compounds Of Vaccinium Berries, Jasminka Milivojevic, Vuk Maksimovic, Jelena Dragisic Maksimovic, Dragan Radivojevic, Milena Poledica, Sezai̇ Erci̇şli̇
A Comparison Of Major Taste- And Health-Related Compounds Of Vaccinium Berries, Jasminka Milivojevic, Vuk Maksimovic, Jelena Dragisic Maksimovic, Dragan Radivojevic, Milena Poledica, Sezai̇ Erci̇şli̇
Turkish Journal of Biology
The chemical fruit composition, phenolic profile, and corresponding total antioxidant activity of bilberry (Vaccinium myrtillus) and 2 commercial blueberry cultivars (Vaccinium corymbosum) were analyzed. Results from this study showed that cultivar Berkeley yielded the highest glucose and fructose contents (70.8 and 88.8 mg/g FW, respectively), and the sweetness index expressed a similar trend, achieving the highest value for cultivar Berkeley (279.2). Citric acid was the major organic acid in the berries tested. V. myrtillus yielded a total organic acids value 2-fold higher (0.35 mg/g FW) as well as the highest vitamin C content (25.8 mg/100 g FW). Among the flavonols …
The Histopathologic Effects Of Morus Alba Leaf Extract On The Pancreas Of Diabetic Rats, Jamshid Mohammadi, Prakash R. Naik
The Histopathologic Effects Of Morus Alba Leaf Extract On The Pancreas Of Diabetic Rats, Jamshid Mohammadi, Prakash R. Naik
Turkish Journal of Biology
Many traditional treatments have been recommended in the alternative system of medicine for the treatment of diabetes mellitus. Mulberry (Morus alba) is a nontoxic natural therapeutic agent shown to possess hypoglycemic, hypotensive, and diuretic properties. The purpose of this study was to examine the histopathologic effects of Morus alba leaf extract on the pancreas of diabetic rats. The animals were treated with mulberry leaf extract at dosages of 400 and 600 mg/kg body weight for 35 days. The various parameters studied included blood glucose, the relative body weight of the pancreas, the diameter of islets, and the number of \beta …
Accumulation Of Poly (3-Hydroxybutyrate) By Microbacterium Barkeri Dsm 20145, Srividya Shivakumar
Accumulation Of Poly (3-Hydroxybutyrate) By Microbacterium Barkeri Dsm 20145, Srividya Shivakumar
Turkish Journal of Biology
A gram-positive bacterium that accumulated poly(3-hydroxybutyric) acid (PHB) was isolated from petrol bunk soil. From its morphological and physiological properties and the nucleotide sequence (about 1.5 kb) of its 16S rDNA, it was identified as Microbacterium barkeri DSM 20145. Based on the available literature, this is the first report of PHB accumulation by Microbacterium sp. The isolate accumulated 0.6 g/L, or 29.7%, of PHB under growth conditions in a nitrogen-deficient medium containing glucose and yeast extract (4:1 ratio), with maximum production by 48 h. The capacity of the isolate to produce PHB under different carbon and nitrogen sources was also …
Cytotoxic Action Of Lead Nitrate On Cytomorphology Of Trigonella Foenum-Graecum L., Sana Choudhary, Mohammad Yunus Khalil Ansari, Zeba Khan, Honey Gupta
Cytotoxic Action Of Lead Nitrate On Cytomorphology Of Trigonella Foenum-Graecum L., Sana Choudhary, Mohammad Yunus Khalil Ansari, Zeba Khan, Honey Gupta
Turkish Journal of Biology
The present experiment was undertaken to determine the mutagenic potential of lead on the cytomorphology of Trigonella foenum-graecum L. and to determine the maximum concentration of lead nitrate that induces maximum genetic variability. The seeds were treated with 6 different concentrations (10, 25, 50, 100, 200, and 400 ppm) of lead nitrate. The higher concentrations of lead nitrate significantly reduced plant height, number of branches per plant, pollen fertility, and yield; higher concentrations also caused variation in the plants at the seedling and mature stages. In addition, concentrations affected the pairing of homologous chromosomes and spindle formation. This resulted in …
Biofilm Formation Comparison Of The Sanipacking® Cooling Tower Fill Material Against Standard Polypropylene Fill Material In A Recirculating Model Water System, İrfan Türetgen, Nazmi̇ye Özlem Şanli Yürüdü, Imke Norden
Biofilm Formation Comparison Of The Sanipacking® Cooling Tower Fill Material Against Standard Polypropylene Fill Material In A Recirculating Model Water System, İrfan Türetgen, Nazmi̇ye Özlem Şanli Yürüdü, Imke Norden
Turkish Journal of Biology
Cooling towers are heat rejection systems that are used in some industrial applications, and they have the potential to develop infectious concentrations of Legionella pneumophila. SANIPACKING® cooling tower fill material and standard polypropylene fill material were compared in terms of biofilm formation potential and anti-Legionella activity within a 4-month period using a laboratory-scale recirculating water system. The recirculating water system was experimentally infected with a L. pneumophila standard strain (ATCC 33152) suspension and operated continuously until all experiments had been completed. Results showed that the L. pneumophila rapidly multiplied in a short time during the study within the model system …
Genetic Diversity Among Salvia Miltiorrhiza Bunge And Related Species Inferred From Nrdna Its Sequences, Li Zhang, Hong-Xia Zhao, Xing Fan, Meng Wang, Chunbang Ding, Rui-Wu Yang, Zhong-Qiong Yin, Xian-Li Xie, Yong-Hong Zhou, De-Guang Wan
Genetic Diversity Among Salvia Miltiorrhiza Bunge And Related Species Inferred From Nrdna Its Sequences, Li Zhang, Hong-Xia Zhao, Xing Fan, Meng Wang, Chunbang Ding, Rui-Wu Yang, Zhong-Qiong Yin, Xian-Li Xie, Yong-Hong Zhou, De-Guang Wan
Turkish Journal of Biology
To investigate the genetic diversity and phylogenetic relationships of Salvia miltiorrhiza and related species, we analyzed the nuclear ribosomal DNA internal transcribed spacer (ITS) region for 7 accessions of Salvia miltiorrhiza and another 23 samples from other taxa within the genus Salvia by maximum parsimony and Bayesian inference analyses. There were 257 variation sites amounting to 40.8% of the total base pairs. All of the data revealed abundant genetic diversity in the genus Salvia. The results showed that the tested materials could be grouped into 3 clusters, and the 3 different occasions in Salvia were clustered into 1 clade, which …
Apoplastic And Symplastic Solute Concentrations Contribute To Osmotic Adjustment In Bean Genotypes During Drought Stress, Nesli̇han Saruhan Güler, Aykut Sağlam, Mehmet Demi̇ralay, Asi̇m Kadioğlu
Apoplastic And Symplastic Solute Concentrations Contribute To Osmotic Adjustment In Bean Genotypes During Drought Stress, Nesli̇han Saruhan Güler, Aykut Sağlam, Mehmet Demi̇ralay, Asi̇m Kadioğlu
Turkish Journal of Biology
The present study investigates changes in the inorganic ions, proline, and endogenous abscisic acid (ABA) contents of the apoplastic and symplastic compartments of leaves from drought-tolerant (Yakutiye) and drought-sensitive (Zulbiye) cultivars of the common bean (Phaseolus vulgaris L.). Drought stress caused a decrease in leaf water potential and stomatal conductance in both cultivars. Concentrations of proline in the drought-tolerant and drought-sensitive cultivars increased in response to drought stress in both compartments. The symplastic K^+ concentration decreased in both cultivars. However, the opposite trend was observed concerning K^+ concentrations in the apoplastic areas. While the symplastic Na^+ concentrations significantly decreased in …
Karyology Of The Scorzonera L. (Asteraceae) Taxa From Turkey, Esra Marti̇n, Özlem Çeti̇n, Serdar Makbul, Ahmet Duran, Meryem Şeker, Derya Boduroğlu, Bahri̇ye Eşmekaya
Karyology Of The Scorzonera L. (Asteraceae) Taxa From Turkey, Esra Marti̇n, Özlem Çeti̇n, Serdar Makbul, Ahmet Duran, Meryem Şeker, Derya Boduroğlu, Bahri̇ye Eşmekaya
Turkish Journal of Biology
In this study, the karyotypes of 13 taxa of the tribe Lactuceae growing naturally in Turkey were examined. Of the species of the genus Scorzonera L. (Asteraceae), S. laciniata L. subsp. laciniata, S. cana (C.A.Mey.) Hoffm. var. jacquiniana (W.Koch) Chamb., S. suberosa C.Koch subsp. suberosa, S. mollis M.Bieb. subsp. mollis, S. papposa DC., S. lacera Boiss. & Bal., S. elata Boiss., and S. parviflora Jacq. have a diploid chromosome number of 2n = 14. For S. phaeopappa (Boiss.) Boiss., this number is 2n = 28, and for S. eriophora DC., S. pseudolanata Grossh., S. tomentosa L., and S. kotschyi Boiss., …
Properties Of Biological Activity Of Ten Wild Almond (Prunus Amygdalus L.) Species, Ali Jahanban Esfahlan, Rashid Jamei
Properties Of Biological Activity Of Ten Wild Almond (Prunus Amygdalus L.) Species, Ali Jahanban Esfahlan, Rashid Jamei
Turkish Journal of Biology
To compare the antioxidant and antiradical activity of phenolic extracts of different species of wild almond kernels (including the brown skin), 10 wild almond species were selected from Shahindezh and Qasemloo Valley in West Azarbaijan Province, Iran. The fruits of these almonds were collected, their kernels were separated from their hulls and shells and then ground, and methanolic extracts were prepared from the kernels. The total phenolic and flavonoid contents were determined using the Folin-Ciocalteu method and a colorimetric method, respectively. The extracts were also evaluated on their reducing power and their capacity to scavenge for DPPH radicals. Significant differences …
Fatty Acid Composition Of The Seeds Of Some Species Of Peucedanum (Kral Otu) From Turkey, Nükhet Akpinar, Sali̇h Görgün, Hüseyi̇n Aşkin Akpulat, Mehmet Ali̇ Akpinar, Apdurahman Aktümsek, Ali̇ Emre Akpinar
Fatty Acid Composition Of The Seeds Of Some Species Of Peucedanum (Kral Otu) From Turkey, Nükhet Akpinar, Sali̇h Görgün, Hüseyi̇n Aşkin Akpulat, Mehmet Ali̇ Akpinar, Apdurahman Aktümsek, Ali̇ Emre Akpinar
Turkish Journal of Biology
The fatty acid compositions of the seeds of Peucedanum ruthenicum, Peucedanum chryseum, Peucedanum palimbioides, Peucedanum obtusifolium, and Peucedanum zedelmeierianum were investigated by gas chromatography (GC). The main fatty acids in the species were found to be palmitic acid (C 16:0, 5.78%-14.68%), oleic acid (C 18:1 \omega-9, 31.28%-68.06%), and linoleic acid (C 18:2 \omega-6, 15.99%-33.74%). Trace amounts of cis-vaccenic acid (C 18:1 \omega-7, 0.82%-1.40%) were found in the seed oils of all of the species investigated.
Genetic Variability Of Beauveria Bassiana And Metarhizium Anisopliae Var. Anisopliae Isolates Obtained From The Eastern Black Sea Region Of Turkey, Ali̇ Sevi̇m, Monica Höfte, Zi̇hni̇ Demi̇rbağ
Genetic Variability Of Beauveria Bassiana And Metarhizium Anisopliae Var. Anisopliae Isolates Obtained From The Eastern Black Sea Region Of Turkey, Ali̇ Sevi̇m, Monica Höfte, Zi̇hni̇ Demi̇rbağ
Turkish Journal of Biology
Beauveria bassiana (Balsamo) Vuillemin and Metarhizium anisopliae var. anisopliae (Metschnikoff) Sorokin are the most common entomopathogenic fungi used in microbial control programs all over the world. Assessments of the genetic variability of these 2 important species are useful for the development of effective biocontrol strategies and for evaluating the impact of artificial epizootics. In this study, the genetic diversity of 13 B. bassiana and 33 M. anisopliae var. anisopliae strains isolated from the hazelnut-growing region of Turkey was determined by using the amplified fragment length polymorphism (AFLP) and \alpha- and \beta-isoenzyme analyses. Cluster analysis of AFLP data clearly separated both …
A Study On The Characterization And Pathogenicity Of Bacteria From Lymantria Dispar L. (Lepidoptera: Lymantriidae), İsmai̇l Demi̇r, Emi̇ne Eryüzlü, Zi̇hni̇ Demi̇rbağ
A Study On The Characterization And Pathogenicity Of Bacteria From Lymantria Dispar L. (Lepidoptera: Lymantriidae), İsmai̇l Demi̇r, Emi̇ne Eryüzlü, Zi̇hni̇ Demi̇rbağ
Turkish Journal of Biology
Gypsy moth, Lymantria dispar L. (Lepidoptera: Lymantriidae), is one of the most serious pests affecting fruit, forest, industrial, and foliage plants worldwide. The aim of this study was to isolate and characterize pathogenic bacteria from this pest and determine their pathogenicity. L. dispar larvae were collected from various populations in the forest areas of the Black Sea region of Turkey in May and June of 2008 and 2009, and 9 culturable bacterial isolates were obtained from these larvae. Morphological and physiological characteristics of bacterial isolates were determined by conventional and routine techniques, and biochemical properties and metabolic enzyme profiles were …
Phytase Production From Lactobacillus Brevis, Meli̇s Sümengen, Sadik Di̇nçer, Ayşenur Kaya
Phytase Production From Lactobacillus Brevis, Meli̇s Sümengen, Sadik Di̇nçer, Ayşenur Kaya
Turkish Journal of Biology
In this study, the phytase from Lactobacillus brevis strains isolated from fermented food products was produced and characterized. Phytase production of this strain was determined by production of clear zones around the colonies on the sodium phytate containing medium, after 48 h of incubation at 30 °C. The molecular weight of the phytase from Lactobacillus brevis was estimated as 73 kDa and 34 kDa on SDS-PAGE. The optimum activity of Lactobacillus brevis extracellular and intracellular enzymes emerged at 120 °C, pH 3.4 and at 110 °C, pH 3.4, respectively. The extracellular enzyme from Lactobacillus brevis was 91% stable for 5 …
Cardioprotective Effect Of Diazepam On Ischemia-Reperfused Isolated Hyperthyroid Rat Heart, Dareuosh Shackebaei, Atefeh Asadmobini, Mahvash Hesari, Maryam Vaezi, Siamak Shahidi
Cardioprotective Effect Of Diazepam On Ischemia-Reperfused Isolated Hyperthyroid Rat Heart, Dareuosh Shackebaei, Atefeh Asadmobini, Mahvash Hesari, Maryam Vaezi, Siamak Shahidi
Turkish Journal of Biology
Hyperthyroidism increases the vulnerability of the heart to ischemia-reperfusion (I/R) injury. Regarding the fact that diazepam also affects cardiac I/R injury, the current study was conducted to investigate the effect of diazepam on ischemia-reperfused isolated hyperthyroid rat heart. The animals were divided into 6 groups: the control, hyperthyroid, control diazepam (1 mg/kg), hyperthyroid diazepam (1 mg/kg), control diazepam (5 mg/kg), and hyperthyroid diazepam (5 mg/kg) groups. Langendorff-perfused rat hearts underwent 40 min of global ischemia and 45 min of reperfusion. Different cardiac parameters, including the left ventricular developed pressure, heart rate, coronary flow, and rate pressure product (RPP), were measured. …
Assessment Of Antioxidant, Antibacterial, Antimycobacterial, And Antifungal Activities Of Some Plants Used As Folk Remedies In Turkey Against Dermatophytes And Yeast-Like Fungi, Di̇dem Deli̇orman Orhan, Berri̇n Özçeli̇k, Sanem Hoşbaş, Meci̇t Vural
Assessment Of Antioxidant, Antibacterial, Antimycobacterial, And Antifungal Activities Of Some Plants Used As Folk Remedies In Turkey Against Dermatophytes And Yeast-Like Fungi, Di̇dem Deli̇orman Orhan, Berri̇n Özçeli̇k, Sanem Hoşbaş, Meci̇t Vural
Turkish Journal of Biology
Twenty-seven aqueous extracts obtained from 21 plants used in the treatment of respiratory tract infections as folk remedies in Turkey were investigated for their relative total phenolic contents and antioxidant, antibacterial, antimycobacterial, and antifungal activities. Antibacterial and antifungal activities against dermatophytes and yeast-like fungi were determined using the microdilution method. Antibacterial activity of all extracts was more pronounced against gram-positive bacteria than against gram-negative bacteria. These extracts also exhibited higher antifungal activity against Candida krusei than ketaconazole. Six extracts displayed antidermatophytic activity against Epidermophyton floccosum, while only 3 extracts were highly active against Trichophyton rubrum. The extracts showed strong activity …
Effects Of \Alpha-Lipoic Acid On Dna Damage, Protein Oxidation, Lipid Peroxidation, And Some Biochemical Parameters In Sub-Chronic Thinner-Addicted Rats, Muhsi̇n Konuk, Tuğba Şahi̇n, İbrahi̇m Hakki Ci̇ğerci̇, Abdurrahman Fati̇h Fi̇dan, Safi̇ye Eli̇f Korcan
Effects Of \Alpha-Lipoic Acid On Dna Damage, Protein Oxidation, Lipid Peroxidation, And Some Biochemical Parameters In Sub-Chronic Thinner-Addicted Rats, Muhsi̇n Konuk, Tuğba Şahi̇n, İbrahi̇m Hakki Ci̇ğerci̇, Abdurrahman Fati̇h Fi̇dan, Safi̇ye Eli̇f Korcan
Turkish Journal of Biology
The present study was carried out to determine the effects of sub-chronic thinner addiction on the oxidant-antioxidant balance, the relation between toxicity and oxidative stress, and a possible protective effect of \alpha-lipoic acid against thinner toxication in rats. Sprague-Dawley rats were divided into 5 groups as follows: control (K), olive oil (Z), \alpha-lipoic acid (L), thinner (T), and \alpha-lipoic acid + thinner (LAT). Each group was composed of 15 rats, and the study lasted 8 weeks. After completing the animal studies malondialdehyde (MDA), reduced glutathione (GSH), methemoglobin (MetHb), toluol, and mononuclear leucocyte damage levels; protein oxidation, nitric oxide (NO_x) metabolites, …
Antioxidant Responses In Mesopodopsis Zeylanica At Varying Salinity To Detect Mercury Influence In Culture Ponds, Xivanand Narayan Verlecar, Priya Brata Das, Karmabeer Jena, Dusmant Maharana, Somshekher Raghoba Desai
Antioxidant Responses In Mesopodopsis Zeylanica At Varying Salinity To Detect Mercury Influence In Culture Ponds, Xivanand Narayan Verlecar, Priya Brata Das, Karmabeer Jena, Dusmant Maharana, Somshekher Raghoba Desai
Turkish Journal of Biology
Antioxidant responses in the estuarine mysid, Mesopodopsis zeylanica, were used to assess mercury (Hg) metal contamination in relation to salinity. Natural mysids acclimatized at 5 psu were subjected to laboratory exposures of 5, 15, and 25 psu salinity singly and under the sublethal Hg concentration of 5 µg/L (one-fifth of 24 h LC_{50} value). Lipid peroxidation in the test species increased with salinity variation from 5 to 15 psu and retained the same up to 25 psu with no change after Hg addition. CAT increased significantly from 5 to 15 psu before Hg influence, and GST increased after addition of …