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Mutagenesis Of Bacillus Thuringiensis Iam 12077 For Increasing Poly (-\Beta-)Hydroxybutyrate (Phb) Production, Pal Adwitiya, Prabhu Ashwini, Arun Kumar Avinash, Rajagopal Badri, Dadhe Kajal, Ponnamma Vomsi, Shivakumar Srividya
Mutagenesis Of Bacillus Thuringiensis Iam 12077 For Increasing Poly (-\Beta-)Hydroxybutyrate (Phb) Production, Pal Adwitiya, Prabhu Ashwini, Arun Kumar Avinash, Rajagopal Badri, Dadhe Kajal, Ponnamma Vomsi, Shivakumar Srividya
Turkish Journal of Biology
A gram-positive bacterium that accumulated PHB was isolated from local garden soil in Bangalore. Based on its morphological and physiological properties, and nucleotide sequence (about 1.5 kb) of its 16S rDNA it was identified as Bacillus thuringiensis IAM 12077. In this study the PHB-producing capacity of putative mutant strains of Bacillus thuringiensis IAM 12077 was evaluated. A Bacillus sp. identified as a Bacillus thuringiensis IAM 12077 strain capable of producing 10%-15% dry cell weight (DCW) PHB when grown in nutrient broth for 48 h was subjected to random mutagenesis [physical (UV) and chemical (acridine orange)]. Among the UV-mutants screened, 19 …
The Effect Of The Interaction Between Genotypes And Drought Stress On The Superoxide Dismutase And Chlorophyll Content In Durum Wheat Landraces, Mohammad Zaefyzadeh, Rauf Alakbar Quliyev, Sevda Mashalla Babayeva, Mehraj Ali̇ Abbasov
The Effect Of The Interaction Between Genotypes And Drought Stress On The Superoxide Dismutase And Chlorophyll Content In Durum Wheat Landraces, Mohammad Zaefyzadeh, Rauf Alakbar Quliyev, Sevda Mashalla Babayeva, Mehraj Ali̇ Abbasov
Turkish Journal of Biology
Free radicals and other active derivatives of oxygen inactivate enzymes and important plant cellular components. Superoxide dismutases (SODs) have been identified as essential components in an organism´s defence mechanism. This study was devoted to the investigation of SOD activity in 13 durum wheat landraces from Iran and Azerbaijan under 2 (drought and normal) conditions. The effect of drought stress on SOD, chlorophyll content index (CCI), and chlorophyll degradation were studied. Significant differences between genotypes and the genotype × environment interaction among SOD and CCI content were identified. The mean comparison showed that the contents of SOD and CCI decreased in …
Interaction Between Glomus Geosporum, Azotobacter Chroococcum, And Bacillus Coagulans And Their Influence On Growth And Nutrition Of Melia Azedarach L., Sevanan Rajeshkumar, Mathan Chandran Nisha, Padanilly Chidambaram Prabu, Lakew Wondimu, Thangavel Selvaraj
Interaction Between Glomus Geosporum, Azotobacter Chroococcum, And Bacillus Coagulans And Their Influence On Growth And Nutrition Of Melia Azedarach L., Sevanan Rajeshkumar, Mathan Chandran Nisha, Padanilly Chidambaram Prabu, Lakew Wondimu, Thangavel Selvaraj
Turkish Journal of Biology
A green house nursery study was conducted to assess the interaction between arbuscular mycorrhizal fungus, a nitrogen fixing bacterium, Glomus geosporum, Azotobacter chroococcum, and a mycorrhiza helper bacterium (MHB), Bacillus coagulans, in soil and their consequent effect on growth and nutrition of Melia azedarach L. seedlings. Triple inoculation of G. geosporum, A. chroococcum, and B. coagulans resulted in maximum plant biomass, N, P, Zn, and Cu uptake, and biovolume and quality index of M. azedarach seedlings. It also increased the mycorrhizal root colonization and spore numbers in the root zone soil of the inoculated plants over uninoculated control plants. The …
In Vitro Screening Of The Antibacterial Activity And Identification Of Bioactive Compounds From Plants Against Selected Vibrio Spp. Pathogens, Anjana Sharma, Virendra Kumar Patel
In Vitro Screening Of The Antibacterial Activity And Identification Of Bioactive Compounds From Plants Against Selected Vibrio Spp. Pathogens, Anjana Sharma, Virendra Kumar Patel
Turkish Journal of Biology
In vitro investigation of the vibriocidal activity of acetone extracts of Saraca indica Linn (Caesalpinaceae) and Datura stramonium Linn (Solanaceae), and aqueous extracts of Allium sativum Linn (Liliaceae) showed that they have antibacterial activity against multidrug-resistant human pathogens. Disc diffusion assay showed that there was significant concentration-dependent antibacterial activity against standard strains of Vibrio cholerae, Vibrio parahaemolyticus, and 12 multidrug-resistant isolates of Vibrio cholerae non-O1. The crude plant extracts had zones of inhibition in the range of 7-27 mm against 1 or more test bacteria, with MIC ranging from 2.5 to 15 mg/ml. Acetone extracts of S. indica and D. …
Characterization And Biological Activity Of Achillea Teretifolia Willd. And A. Nobilis L. Subsp. Neilreichii (Kerner) Formanek Essential Oils, Fati̇h Demi̇rci̇, Betül Demi̇rci̇, İlhan Gürbüz, Erdem Yeşi̇lada, K. Hüsnü Can Başer
Characterization And Biological Activity Of Achillea Teretifolia Willd. And A. Nobilis L. Subsp. Neilreichii (Kerner) Formanek Essential Oils, Fati̇h Demi̇rci̇, Betül Demi̇rci̇, İlhan Gürbüz, Erdem Yeşi̇lada, K. Hüsnü Can Başer
Turkish Journal of Biology
The aerial parts of the endemic Achillea teretifolia Willd. and A. nobilis L. subsp. neilreichii (Kerner) Formanek collected from Beyşehir were investigated for their essential oil compositions and several biological activities. The essential oils were analyzed both by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). The main components were identified as 1,8-cineole (34%), camphor (11%), terpinen-4-ol (8%), and α-thujone (5%) for A. teretifolia essential oil, while fragranyl acetate (32%), fragranol (24%), and \beta-eudesmol (8%) for A. nobilis subsp. neilreichii essential oil, respectively. The essential oils were also evaluated for their in vitro antimicrobial activity and their ability to scavenge …
Antibacterial Activity Of Seed Extracts Of Commercial And Wild Lathyrus Species, Noor Afshan Khan, Sadaf Quereshi, Akhilesh Pandey, Ashutosh Srivastava
Antibacterial Activity Of Seed Extracts Of Commercial And Wild Lathyrus Species, Noor Afshan Khan, Sadaf Quereshi, Akhilesh Pandey, Ashutosh Srivastava
Turkish Journal of Biology
Butanolic extract of seeds from 2 different Lathyrus species (Lathyrus ratan [commercial variety] and L. aphaca [wild variety]), were investigated for their in vitro antibacterial activity. The antibacterial activity against plant and human pathogenic bacteria was evaluated on the basis of inhibition zones (IZs) measured by disc diffusion method. The maximum inhibition was shown by L. ratan against the gram-positive bacterium Staphylococcus aureus. L. aphaca seeds also showed inhibition but were inactive against Klebsiella pneumoniae. L. ratan extract was more active than L. aphaca. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) values for both the seeds (in …
Yield And Economics Of Withania Somnifera Influenced By Dual Inoculation Of Azotobacter Chroococcum And Pseudomonas Putida, Vivek Kumar, Amar Singh Solanki, Shivesh Sharma
Yield And Economics Of Withania Somnifera Influenced By Dual Inoculation Of Azotobacter Chroococcum And Pseudomonas Putida, Vivek Kumar, Amar Singh Solanki, Shivesh Sharma
Turkish Journal of Biology
The yield parameters and cost economics of Withania somnifera were studied using dual inoculation of Azotobacter chroococcum and Pseudomonas putida. The experiment was conducted in a randomized block design with 3 replications for 2 consecutive years, along with 2 levels of organic manure, 10 t ha^{-1} and 20 t ha^{-1}. Inoculation with the inoculants generated encouraging results; root yield (1185.6 kg ha^{-1}), seed yield (208.13 kg ha^{-1}), number of offshoots per plant (6.07), and plant height (108.4 cm) were maximum with treatment T6 (organic manure [OM] 20 t ha^{-1} + both bacteria), followed by T9 (OM 10 t ha^{-1} + …
Multielement Determination In Fruit, Soaps And Coffee Of Pistacia Terebinthus L. By Icp-Oes, Mehmet Sayim Karacan, Fatma Çağran
Multielement Determination In Fruit, Soaps And Coffee Of Pistacia Terebinthus L. By Icp-Oes, Mehmet Sayim Karacan, Fatma Çağran
Turkish Journal of Biology
Multielement analyses were carried out on whole fruit, soaps, gummy extract, and fresh infusions of Pistacia terebinthus using the ICP OES technique. Digestion processes were optimized in a microwave oven. Qualitatively, the elements Al, As, B, Ba, Bi, Ca, Cd, Co, Cr, Cu, Fe, Ge, Hg, In, K, La, Li, Mg, Mn, Mo, Na, Ni, P, Pb, Pd, Sb, Sc, Se, Si, Sn, Sr, Te, Ti, V, W, and Zn were found in the fresh fruit. Al, Cd, and Pb levels in the infusions of gummy extract exceeded the upper limits specified by the Turkish Food Codex and filtration was …
Biological Screening Of Vitis Vinifera L. Leaf Fractions, Di̇dem Deli̇orman Orhan, Ni̇lüfer Orhan, Berri̇n Özçeli̇k, Fatma Ergun
Biological Screening Of Vitis Vinifera L. Leaf Fractions, Di̇dem Deli̇orman Orhan, Ni̇lüfer Orhan, Berri̇n Özçeli̇k, Fatma Ergun
Turkish Journal of Biology
The fractions of different polarity, namely chloroform, ethylacetate, n-butanol, and remaining water fractions, were fractionated from an aqueous extract of V. vinifera leaves. The antibacterial, antifungal, antiviral, antioxidant activities, and total phenolic content of these fractions were investigated. The chloroform fraction showed a promising effect against Herpes simplex virus type-1 (HSV-1) and Parainfluenza viruses (PIV). The results indicated that all the fractions were more pronounced against gram-positive bacteria (S. aureus and E. faecalis) than against gram-negative bacteria (E. coli and P. aeruginosa). On the other hand, the fractions showed equal antifungal activity against the genus Candida (C. albicans and C. …
Adventitious Shoot Regeneration And In Vitro Flowering Of Anthemis Xylopoda O. Schwarz, A Critically Endangered Turkish Endemic, Bengi̇ Baba Erdağ, Yelda Çalmaz Emek
Adventitious Shoot Regeneration And In Vitro Flowering Of Anthemis Xylopoda O. Schwarz, A Critically Endangered Turkish Endemic, Bengi̇ Baba Erdağ, Yelda Çalmaz Emek
Turkish Journal of Biology
A protocol has been developed for the direct induction of adventitious shoots from leaf explants of in vitro raised Anthemis xylopoda O.Schwarz, a critically endangered Turkish endemic. The Murashige and Skoog (MS) media supplemented with N^6-benzyladenine (BA), kinetin (KIN), and thidiazuron (TDZ) were used in regeneration experiments. BA at 0.5 mg L^{-1} concentration was chosen as the optimal treatment because it yielded the maximal number of adventitious shoots with the best quality (6.70 ± 1.05 shoots/explant). The highest mean of maximum shoot length was observed in MS media containing 0.2 mg L^{-1} BA (4.30 ± 0.48 cm). Regenerated shoots rooted …
Propagation Of Endangered Thermopsis Turcica Tan, Vural & Küçüködük Using Conventional And In Vitro Techniques, Süleyman Cenkçi̇, Mehmet Temel, Mustafa Kargioğlu, Sergun Dayan
Propagation Of Endangered Thermopsis Turcica Tan, Vural & Küçüködük Using Conventional And In Vitro Techniques, Süleyman Cenkçi̇, Mehmet Temel, Mustafa Kargioğlu, Sergun Dayan
Turkish Journal of Biology
This report deals with the successful clonal propagation of endangered T. turcica using rhizome cuttings and epicotyl explants. Rhizome cuttings were treated with \alpha-naphthaleneacetic acid (NAA) or indole-3-butyric acid (IBA) before planting for vegetative multiplication. Rhizome cuttings pretreated with NAA (10 mg/L) were both rooted and sprouted (66.6 percent) after 100 days. Application of NAA induced callus and adventitious root formation in epicotyl explants and 6-benzyladenine (BA) induced production of microshoots. Low levels of NAA (0.5-1 \muM) together with BA promoted shoot initiation and development. The highest regeneration rate (86.6 percent), with a mean number of shoots (3.05) and a …
Production And Characterization Of Multifunctional Endoxylanase By Bacillus Sp. X13, Ashabil Aygan, Burhan Arikan
Production And Characterization Of Multifunctional Endoxylanase By Bacillus Sp. X13, Ashabil Aygan, Burhan Arikan
Turkish Journal of Biology
A multifunctional endoxylanase producing Bacillus sp. was isolated from soil. Enzyme synthesis occurred at temperatures between 20 °C and 60 °C with an optimum 37 °C. Analysis of the enzyme by SDS-PAGE revealed 4 active enzyme bands, which were estimated to be 66.5 kDa, 80.6 kDa, 95.5 kDa, and 108.4 kDa. The enzyme has a broad temperature range, between 20 and 90 °C, with an optimum at 40 °C; and maximum activity was at pH 6.0. The enzyme showed a gradual decrease in the remaining activity as the pre-incubation temperature increase. Thermostability was not also increased in the presence of …
Eicosanoids Act In Nodulation Reactions To Bacteria Serratia Marcescensin Hemipteran Pest, Eurygaster Integriceps, Hasan Tunaz
Eicosanoids Act In Nodulation Reactions To Bacteria Serratia Marcescensin Hemipteran Pest, Eurygaster Integriceps, Hasan Tunaz
Turkish Journal of Biology
In insects, nodulation is the first step in cellular defense reactions to bacterial, fungal, and some viral infections. The hypothesis was posed that the hemipteran pest E. integriceps produces melantoic nodulation reactions to bacterial challenge and that eicosanoids mediate these reactions. Treating the adult of E. integriceps with Serratia marcescens induced nodulation reactions in a challenge dose-dependent manner. Injecting the adult E. integriceps with eicosanoid biosynthesis inhibitors, immediately before intrahemocoelic injections of the bacterium Serratia marcescens, sharply reduced the nodulation response to bacterial challenges. Separate treatments with specific inhibitors including dexamethasone (a phospholipase A_2 inhibitor), indomethacin, naproxen, ibuprofen, piroxicam (cyclooxygenase …
Oxidative Stress Biomarkers In Liver And Gill Tissues Of Spotted Barb (Capoeta Barroisi Lortet, 1894) Living In Ceyhan River, Adana-Turkey, Ergül Belge Kurutaş, Aysel Şahan, Tülay Altun
Oxidative Stress Biomarkers In Liver And Gill Tissues Of Spotted Barb (Capoeta Barroisi Lortet, 1894) Living In Ceyhan River, Adana-Turkey, Ergül Belge Kurutaş, Aysel Şahan, Tülay Altun
Turkish Journal of Biology
This study was carried out in an agricultural, industrial, domestic, and slaughterhouse area that is also a discharging region of the river Ceyhan just under the crest of the Aslantaş dam. Levels of pollution indicator parameters of the water were observed and their effects on various oxidative stress biomarkers in gill and liver tissues of spotted barb (Capoeta barroisi Lortet, 1894) were investigated. The oxidative stress biomarkers analyzed included superoxide dismutase (SOD), catalase (CAT), and glucose-6-phosphate dehydrogenase (G6PD). Levels of reduced glutathione (GSH) and lipid peroxidation (LPO) were also evaluated. High levels of CAT, G6PD, GST, and GSH activity were …
Comparative Susceptibilities Of Six Insect Cell Lines To Infection By Malacosoma Neustria Nucleopolyhedrovirus (Manenpv), İsmai̇l Demi̇r, Nurten Gürel, Remzi̇ye Nalçacioğlu, Zi̇hni̇ Demi̇rbağ
Comparative Susceptibilities Of Six Insect Cell Lines To Infection By Malacosoma Neustria Nucleopolyhedrovirus (Manenpv), İsmai̇l Demi̇r, Nurten Gürel, Remzi̇ye Nalçacioğlu, Zi̇hni̇ Demi̇rbağ
Turkish Journal of Biology
In this study, 6 lepidopteran cell lines derived from Trichoplusia ni (Tn5), Lymantria dispar (LdElta), Bombyx mori (Bm-5), Spodoptera frugiperda (Sf21), Spodoptera exigua (Se-1), and Choristoneura fumiferana (Cf-124T) were investigated for susceptibility to Malacosoma neustria nucleopolyhedrovirus (ManeNPV) isolated in Turkey. Infection of Malacosoma disstria (Md203) cell line by ManeNPV was used as a control. In ManeNPV-Md203 infection, polyhedral inclusion bodies (PIBs) were detected at 36 h p.i. and observed in all infected cells by 120 h p.i., and the infectious virus titer increased 10^3-fold. At 24 h p.i., the efficient replication of viral DNA was detected. In this study, we …
The Effect Of Environmental Factors On The Growth And Size Structure Of Two Dominant Phytoplankton Species In The Büyükçekmece Reservoir (İstanbul,Turkey), Yelda Aktan, Cenk Gürevi̇n, Zeynep Dorak
The Effect Of Environmental Factors On The Growth And Size Structure Of Two Dominant Phytoplankton Species In The Büyükçekmece Reservoir (İstanbul,Turkey), Yelda Aktan, Cenk Gürevi̇n, Zeynep Dorak
Turkish Journal of Biology
The aim of this study was to investigate seasonal variability in the growth and size structure of dominant phytoplankton species in Büyükçekmece Reservoir, and to determine the environmental factors that affect morphological plasticity in those dominant species. In total, 78 taxa from 8 algal divisions were identified. Bacillariophyta and Chlorophyta were the most important divisions with respect to species number, but cryptomonads Plagioselmis nannoplanctica (Skuja) Novarino, Lucas, and Morrall, and a Cryptomonas sp. were dominant in terms of density and biomass. P. nannoplanctica was the major contributor of biomass in the reservoir. A significant difference in Plagioselmis species biovolume was …
Kala Zeera (Bunium Persicum Bioss.): A Kashmirian High Value Crop, Parvez Ahmad Sofi, N. A. Zeerak, Parmeet Singh
Kala Zeera (Bunium Persicum Bioss.): A Kashmirian High Value Crop, Parvez Ahmad Sofi, N. A. Zeerak, Parmeet Singh
Turkish Journal of Biology
Kala zeera is a high value, low volume, and under-exploited spice crop that grows in mountainous regions of Kashmir in the Himalayas. It has received very little attention in terms of development, standardization of production technology, and plant protection management practices. Sher-e Kashmir University of Agriculture Sciences and Technology (SKUAST-K) and other organizations have instituted programs for systematic improvement of Kala zeera. In this paper, we offer a synopsis of the latest work being done in promoting this high value crop, which would have a beneficial effect for the encouragement of economic activity in the Himalayas.
Hormonal Factors Of Anti-Mutagenesis Regulation, Mekhtizadeh Emin Rza
Hormonal Factors Of Anti-Mutagenesis Regulation, Mekhtizadeh Emin Rza
Turkish Journal of Biology
The genetic activity of phytohormones (Phs) was studied. The investigation was conducted with 4 plants (Allium fistulosum, Lycopersicon esculentum, Triticum aestivum, and Gossypium hirsutum). The action of Phs on plant genetic processes was evaluated by chromosome aberration testing. It was observed that the exogenic Phs exerted a stabilizing effect on spontaneous plant mutagenesis. The use of Phs before and after the action of mutagenic factors contributed to an increase in the anti-mutational or reparative function of the plants´ genes. It was observed that the Phs exhibited genoprotective or reparative activity. The absence of clearly expressed dependence of these effects on …
Identification Of Lactococcus Lactis Subsp. Isolates Based On Their Cell Wall Protein Profiles And Plasmid Contents, Mehtap Üstün, Banu Özden, Ömer Şi̇mşek, Mustafa Akçeli̇k
Identification Of Lactococcus Lactis Subsp. Isolates Based On Their Cell Wall Protein Profiles And Plasmid Contents, Mehtap Üstün, Banu Özden, Ömer Şi̇mşek, Mustafa Akçeli̇k
Turkish Journal of Biology
In this study, among the total 50 lactococci isolates, 44% L. lactis subsp. lactis, 28% L. lactis subsp. lactis biovar. diacetylactis and 28% L. lactis subsp. cremoris strains were identified by their phenotypic characterization. According to the cell wall protein patterns, 8.6, 12.5, 14.7, 20.3, 23.4, 25.4, and 31.8 kDa proteins were found identical within 82% of isolates. Moreover 93% of L. lactis subsp. cremoris strains contained a unique 157.8 kDa protein; however, L. lactis subsp. lactis and L. lactis subsp. lactis biovar. diacetylactis had no unique protein in their groups. Also a key plasmid profile, which would be used …
C-Banded Karyotype And Nucleolar Organizer Regions (Nors) Of Wild Boar, Sus Scrofa (Artiodactyla: Suidae) From Anatolia, Ati̇lla Arslan, İrfan Albayrak
C-Banded Karyotype And Nucleolar Organizer Regions (Nors) Of Wild Boar, Sus Scrofa (Artiodactyla: Suidae) From Anatolia, Ati̇lla Arslan, İrfan Albayrak
Turkish Journal of Biology
The present study reports the karyotype, C-banding, and nucleolar organizer regions (NORs) of 6 Sus scrofa (Linnaeus, 1758) males from Anatolia. The karyotype of S. scrofa comprised (2n) 38 chromosomes, the number of chromosomal arms (FN) was 64, and the number of autosomal arms (FNa) was 60. C-positive regions appeared to be restricted to the centromeric regions of autosomes 1, and 13-18, and the entire long arm of the Y chromosome. Some autosomes had very slight C-bands. The X chromosome appeared to be entirely euchromatic. NORs were identified by the silver-staining technique and were observed on secondary constriction sites of …
A Cytogenetical Study On Some Plants Taxa In Nizip Region (Aksaray, Turkey), Meryem Öztürk, Esra Marti̇n, Muhi̇tti̇n Di̇nç, Ahmet Duran, Ayşe Özdemi̇r, Özlem Çeti̇n
A Cytogenetical Study On Some Plants Taxa In Nizip Region (Aksaray, Turkey), Meryem Öztürk, Esra Marti̇n, Muhi̇tti̇n Di̇nç, Ahmet Duran, Ayşe Özdemi̇r, Özlem Çeti̇n
Turkish Journal of Biology
This cytological study was performed in 19 taxa grown naturally in Nizip region (Aksaray). These taxa are Conringia perfoliata (C.A.Mey.) Busch, Alyssum strigosum Banks & Sol. subsp. strigosum, Alyssum murale Waldst. & Kit. subsp. murale var. murale, Matthiola longipetala (Vent.) DC. subsp. bicornis (Sibth. & Sm.) P.W.Ball., Erysimum thyrsoideum Boiss. subsp. thyrsoideum (Brassicaceae), Silene alba (Mill.) E.H.L. Krause subsp. divaricata (Reichb.) Walters, Silene conoidea L., Silene otites (L.) Wibel. (Caryophyllaceae), Linum austriacum L. subsp. austriacum (Linaceae), Medicago x varia Martyn., Onobrychis argyrea Boiss. subsp. argyrea (Fabaceae), Astrodaucus orientalis (L.) Drude (Apiaceae), Centaurea patula DC., Centaurea solstitialis L. subsp. solstitialis, Cnicus …
Hypoxia Induced Changes In The Lipid Peroxidation, Membrane Permeability, Reactive Oxygen Species Generation, And Antioxidative Response Systems In Zea Mays Leaves, Rashid Jamei, Reza Heidari, Jalil Khara, Samad Zare
Hypoxia Induced Changes In The Lipid Peroxidation, Membrane Permeability, Reactive Oxygen Species Generation, And Antioxidative Response Systems In Zea Mays Leaves, Rashid Jamei, Reza Heidari, Jalil Khara, Samad Zare
Turkish Journal of Biology
The effects of hypoxia on the activities of some enzymes of antioxidative, non- enzymatic scavenging system, membrane permeability, lipid peroxidation, and some reactive oxygen species (ROS) in leaves of Zea mays were investigated. Samples were taken 48, 96, 144, and 192 h after the start of hypoxia treatment. A 192 h hypoxia treatment resulted in a significant rise in membrane permeability, lipid peroxidation (malondialdehyde level), and the production of hydrogen peroxide (H_2O_2) and superoxide (O_2^-) in maize leaves. A short duration of hypoxia enhanced the activity of superoxide dismutase (SOD; EC 1.15.1.1), catalase (CAT; EC 1.11.1.6), ascorbate peroxidase (APX; EC …
In Vitro Antimicrobial And Antioxidant Activities Of Methanol And Hexane Extract Of Astragalus Species Growing In The Eastern Anatolia Region Of Turkey, Ahmet Adigüzel, Münevver Sökmen, Hakan Özkan, Güleray Ağar, Medi̇ne Güllüce, Fi̇kretti̇n Şahi̇n
In Vitro Antimicrobial And Antioxidant Activities Of Methanol And Hexane Extract Of Astragalus Species Growing In The Eastern Anatolia Region Of Turkey, Ahmet Adigüzel, Münevver Sökmen, Hakan Özkan, Güleray Ağar, Medi̇ne Güllüce, Fi̇kretti̇n Şahi̇n
Turkish Journal of Biology
This study was conducted to evaluate the antimicrobial and antioxidant activities of the hexane and methanol extracts of the aboveground parts and roots of some Astragalus species grown in the vicinity of Erzurum, located in the eastern Anatolia, Turkey. The methanol extract, which was obtained from the aboveground parts of Astragalus species, exhibited mild free radical scavenging activity providing 50% inhibition at the concentrations between 68.8 and 400.4 \mug/ml. The hexane/dichloromethane extracts of the aboveground parts of Astragalus species did not show any free radical scavenging activity. However, the linoleic acid oxidation inhibition ability of the non-polar extracts seems to …
Antibacterial Activities Of Extracts From Some Turkish Endemic Plants On Common Fish Pathogens, Hakan Türker, Arzu Bi̇ri̇nci̇ Yildirim, Fatma Pehli̇van Karakaş, Hi̇lal Köylüoğlu
Antibacterial Activities Of Extracts From Some Turkish Endemic Plants On Common Fish Pathogens, Hakan Türker, Arzu Bi̇ri̇nci̇ Yildirim, Fatma Pehli̇van Karakaş, Hi̇lal Köylüoğlu
Turkish Journal of Biology
Antibacterial activities of 24 alcoholic and aqueous extracts from 8 endemic Turkish plants (Crocus abantensis, Crocus ancyrensis, Galanthus plicatus subsp. byzantinus, Paronychia chionaea, Astragalus gymnolobus, Trifolium pannonicum subsp.elongatum, Eryngium bithynicum, and Convolvulus galaticus) of 7 different families were screened. Antibacterial activity was carried out with 5 different fish pathogens (Aeromonas hydrophila, Yersinia ruckeri, Streptococcus agalactia, Lactococcus garvieae, and Enterococcus faecalis). Crude extracts of endemic plant extracts were applied against the bacteria using the disc diffusion method under in vitro conditions. A. hydrophila was the only inhibited bacteria from all alcoholic and aqueous extracts of C. ancyrensis, G. plicatus, T. pannonicum, …
An Ethnobotanical Field Survey In The Haymana District Of Ankara Province In Turkey, Fulya Sarper, Gali̇p Akaydin, Işil Şi̇mşek, Erdem Yeşi̇lada
An Ethnobotanical Field Survey In The Haymana District Of Ankara Province In Turkey, Fulya Sarper, Gali̇p Akaydin, Işil Şi̇mşek, Erdem Yeşi̇lada
Turkish Journal of Biology
Dietary, therapeutical, and other ethnobotanical utilizations of the wild plants grown in Haymana district of Ankara were investigated. Information was collected by face-to-face interviews with 160 individuals in 9 selected sites. The demographic characteristics of the informants were evaluated and cross-relationships with the recorded data were also analyzed by SPSS statistical software. Results of the study show that 83.8% of the informants recognize the utilization of wild plants either as foodstuff or as remedy, while only 16.2% was unaware of that. Both the knowledge and the utilization of plants significantly increased with the increasing age of the informants. However, there …
Comparison Of Gst Isoenzyme Expression In Normal And Neoplastic Breast Tissue: Correlation With Clinical And Prognostic Factors, Serpi̇l Oğuztüzün, Mesude İşcan, Müzeyyen Özhavzali, Serpi̇l Di̇zbay Sak
Comparison Of Gst Isoenzyme Expression In Normal And Neoplastic Breast Tissue: Correlation With Clinical And Prognostic Factors, Serpi̇l Oğuztüzün, Mesude İşcan, Müzeyyen Özhavzali, Serpi̇l Di̇zbay Sak
Turkish Journal of Biology
Glutathione S-transferases in breast tissue play an important role in the susceptibility to the mutagenic effects of chemical carcinogens and in the response of breast tumors to chemotherapy. In this study the immunohistochemical staining characteristics of glutathione S-transferase isoenzymes (alpha, mu, pi, and theta) were investigated in invasive duct carcinomas and in normal breast tissue of 43 patients. The relationships between the expression of the GST isoenzymes and some clinicopathological features were also examined. Diffuse cytoplasmic staining of varying intensity was observed for GST alpha, theta, and pi in normal and tumorous breast tissue in 100% of the samples. In …
Properties Of Bacillus Cereus Collected From Different Food Sources, Kiymet Güven, M. Burçi̇n Mutlu
Properties Of Bacillus Cereus Collected From Different Food Sources, Kiymet Güven, M. Burçi̇n Mutlu
Turkish Journal of Biology
Forty-nine Bacillus cereus isolates were obtained from 10 different food samples consumed in Turkey. The isolates were identified as B. cereus based on colonial, cellular morphology, and biochemical characters, including fatty acid methyl ester (FAME) analysis. The potentials of 53 isolates including a reference strain, B. cereus NRRL B-3711, and 3 strains from Japan were tested to produce diarrhoeal enterotoxin (by the BCET-RPLA test) in BHI culture and 35 isolates (66%) were positive. Fatty acid composition varied for all B. cereus isolates, with 74 different fatty acids being detected. Grouping of B. cereus isolates by fatty acid composition suggested the …
Changes In Anatomical Structure And Levels Of Endogenous Phytohormones During Leaf Rolling In Ctenanthe Setosa Under Drought Stress, Ni̇hal Kutlu, Rabi̇ye Terzi̇, Çi̇ğdem Tekeli̇, Gülcan Şenel, Peyami̇ Battal, Asim Kadioğlu
Changes In Anatomical Structure And Levels Of Endogenous Phytohormones During Leaf Rolling In Ctenanthe Setosa Under Drought Stress, Ni̇hal Kutlu, Rabi̇ye Terzi̇, Çi̇ğdem Tekeli̇, Gülcan Şenel, Peyami̇ Battal, Asim Kadioğlu
Turkish Journal of Biology
Leaf rolling occurs as a response to water deficit and its level increases as the drought period is progressing in plants. Changes in anatomical structure and levels of endogenous phytohormones were investigated under drought stress during leaf rolling in Ctenanthe setosa. Leaf water potential (\Psi_{leaf}), some anatomical parameters, and the levels of phytohormones were determined at different visual levels of leaf rolling from 1 to 4. \Psi_{leaf}, thickness of mesophyll and lamina, and width/length ratio of hypodermis cells of leaves decreased while leaf rolling level increased. Diameters of xylem vessels and median vein, and length of upper and lower stomatal …
Induced Karyomorphological Variations In Three Phenodeviants Of Capsicum Annuum L., Girjesh Kumar, Priyanka Gupta
Induced Karyomorphological Variations In Three Phenodeviants Of Capsicum Annuum L., Girjesh Kumar, Priyanka Gupta
Turkish Journal of Biology
EMS was used as a mutagen in Capsicum annuum L. to isolate karyomorphological mutants. Seeds of Capsicum annuum L. var Azad were first pre-soaked in distilled water and then treated with 0.5% solution of EMS for 3 durations, i.e. 3, 5, and 7 h, and genetic segregation was closely observed. Many chromosomal anomalies like stickiness, bridges, and multivalent, secondary associations, laggards, and precocious movement were observed after all 3 durations of treatment. These anomalies showed a dose-dependent increase in frequency. The morphological parameters showed a decreasing trend along with the increasing dose. However, with the 7-h dose 3 morphologically distinct …
A Comparative Study On Pleurotus Ostreatus (Jacq.) P.Kumm. Cultivated On Different Agricultural Lignocellulosic Wastes, Abdurrahman Dündar, Abdunnasir Yildiz
A Comparative Study On Pleurotus Ostreatus (Jacq.) P.Kumm. Cultivated On Different Agricultural Lignocellulosic Wastes, Abdurrahman Dündar, Abdunnasir Yildiz
Turkish Journal of Biology
For the cultivation of Pleurotus ostreatus (Jacq.) P.Kumm. wheat stalk (WS), cotton stalk (CS), millet stalk (MS), and soybean stalk (SS) were used as the main material and oven-dried lentil straw (LS) was used as an additive material 100:10, 100:15, 100:20 w:w in weight for 100 g of main material (70% moisture). The shortest mycelium growing time (MGT) was 10.2 days, on the SS, while the longest was 18.8 days, on the CS. The shortest first harvest time (FHT) was 30 days, on SS + LS (90:10; w:w), and the longest was 46.4 days, on CS + LS (100:20; w:w). …