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Rotifers Of Southwest Iran: A Faunistic And Biogeographical Study, Raheleh Reihan Reshteh, Hassan Rahimian Jan 2014

Rotifers Of Southwest Iran: A Faunistic And Biogeographical Study, Raheleh Reihan Reshteh, Hassan Rahimian

Turkish Journal of Zoology

The fauna of freshwater rotifers from Khuzestan Province (Southwest Iran) was expected to be different from that of the rest of Iran because of its geographical position, past geological events, climatic conditions, and similarities to neighboring zoogeographical areas. To test this hypothesis, we first had to determine the rotifer fauna of Khuzestan and then compare it with the results of surveys from other parts of Iran as well as with those from neighboring regions. Samples were collected from 10 sites throughout the province from May 2009 to April 2010. During the study, 66 species were identified, mostly with distribution in …


Contribution To The Knowledge Of The Scutelleridae (Hemiptera, Heteroptera) Fauna Of Turkey, Erol Yildirim, Gülten Yazici, Ni̇hal Karakurt Jan 2014

Contribution To The Knowledge Of The Scutelleridae (Hemiptera, Heteroptera) Fauna Of Turkey, Erol Yildirim, Gülten Yazici, Ni̇hal Karakurt

Turkish Journal of Zoology

This study is based on material of the family Scutelleridae collected from different localities in Turkey between 1969 and 2013. In this study, 13 species of 7 genera belonging to 4 subfamilies (Eurygasterinae, Elvisurinae, Odontoscelinae, Odontotarsinae) from the family Scutelleridae were recorded from Turkey. Among them, Eurygaster integriceps Puton, 1881; Eurygaster maura (Linnaeus, 1758); and Odontotarsus purpureolineatus (Rossi, 1790) have been found to be the most abundant and widespread species. Phimodera flori Fieber, 1863 is a new record for the Turkish fauna. In addition, new localities were found for some species that have already been reported in Turkey.


Revision Of The Genus Aphelinus Dalman (Hymenoptera: Chalcidoidea: Aphelinidae) In Norway With Descriptions Of 3 New Species, George Japoshvili, Lars Ove Hansen Jan 2014

Revision Of The Genus Aphelinus Dalman (Hymenoptera: Chalcidoidea: Aphelinidae) In Norway With Descriptions Of 3 New Species, George Japoshvili, Lars Ove Hansen

Turkish Journal of Zoology

The Norwegian species of Aphelinus Dalman, 1820 (Hymenoptera: Aphelinidae) are reviewed, and a total of 8 species are recorded. The 3 species Aphelinus abdominalis (Dalman, 1820), A. chaonia Walker, 1839, and A. varipes (Förster, 1841) have previously been recorded from Norway, while A. mali (Haldemann, 1851) and A. asychis Walker, 1839 represent new records for the country. The 3 species A. elvestueni sp. nov., A. odin sp. nov., and A. paluscolus sp. nov. are described, illustrated, and compared with closely related species. An illustrated key for the identification of the females of Norwegian Aphelinus is presented.


Development Of Empirical Standard Weight Equation For Pursak Chub Squalius Pursakensis, An Endemic Cyprinid Species Of Northwest Anatolia, Şule Sülün, Sercan Başkurt, Özgür Emi̇roğlu, Daniela Giannetto, Ali̇ Serhan Tarkan, Sevan Ağdamar, Özcan Gaygusuz, Zeynep Dorak, Hamdi̇ Aydin, Arzu Çi̇çek Jan 2014

Development Of Empirical Standard Weight Equation For Pursak Chub Squalius Pursakensis, An Endemic Cyprinid Species Of Northwest Anatolia, Şule Sülün, Sercan Başkurt, Özgür Emi̇roğlu, Daniela Giannetto, Ali̇ Serhan Tarkan, Sevan Ağdamar, Özcan Gaygusuz, Zeynep Dorak, Hamdi̇ Aydin, Arzu Çi̇çek

Turkish Journal of Zoology

Indices of condition enable the evaluation of the well-being of fish, with the assumption that heavier fish of a given length are in a better condition. Relative weight (W_{r}) is one of these indices; it is calculated by comparing the actual weight of a specimen with the ideal weight of a specimen in good physiological condition of the same length from the same species, i.e. standard weight (W_{s}). In this research, length and weight data over the distribution range for Pursak chub Squalius pursakensis, an endemic species distributed in the Sakarya and Porsuk drainages in Northwest Anatolia (Turkey), were used …


The Use Of Bmwp And Aspt Indices For Evaluation Of Water Quality According To Macroinvertebrates In Değirmendere Stream (Isparta, Turkey), Melek Zeybek, Hasan Kalyoncu, Büşra Karakaş, Seda Özgül Jan 2014

The Use Of Bmwp And Aspt Indices For Evaluation Of Water Quality According To Macroinvertebrates In Değirmendere Stream (Isparta, Turkey), Melek Zeybek, Hasan Kalyoncu, Büşra Karakaş, Seda Özgül

Turkish Journal of Zoology

This study was carried out between March 2011 and February 2012 on Değirmendere Stream in order to determine the water quality of the stream, and to investigate the environmental quality and the applicability of both the Biological Monitoring Working Party (BMWP; Original, Spanish, Hungarian, Czech, and Polish versions) and Average Score Per Taxon (ASPT; Original, Hungarian, and Czech versions) indices. The biotic and diversity indices were applied using the ASTERICS software program. As a result, a total of 59 taxa were detected: 4 taxa from Gastropoda, 1 taxon from Bivalvia, 1 taxon from Oligochaeta, 1 taxon from Hirudinea, 2 taxa …


Age, Growth, And Reproductive Biology Of Atlantic Bonito (Sarda Sarda Bloch, 1793] From The Turkish Coasts Of The Black Sea And The Sea Of Marmara, Abdullah Ekrem Kahraman, Di̇dem Göktürk, Taner Yildiz, Uğur Uzer Jan 2014

Age, Growth, And Reproductive Biology Of Atlantic Bonito (Sarda Sarda Bloch, 1793] From The Turkish Coasts Of The Black Sea And The Sea Of Marmara, Abdullah Ekrem Kahraman, Di̇dem Göktürk, Taner Yildiz, Uğur Uzer

Turkish Journal of Zoology

This study aims to investigate some biological characteristics of Atlantic bonito, Sarda sarda Bloch, 1793, from the Turkish coasts of the Black Sea and the Sea of Marmara. A total of 212 S. sarda (100 females, 89 males, and 23 undetermined) were sampled monthly between May 2011 and September 2012. The sex ratio (male/female) was 0.89; females prevailed but not statistically significantly so. Fork lengths of all sampled individuals ranged from 17.7 to 63.0 cm. The length-weight relationship for all individuals was calculated as W = 0.01 L^{3.085}. The ages of the fish ranged from 0+ to 2+. Growth parameters …


First Record Of F_2 Hybrid Striped Bass (Morone Chrysops ♀ × Morone Saxatilis ♂ × Morone Chrysops ♀ × Morone Saxatilis ♂) In Kemer Dam Lake, Volkan Kizak, Yusuf Güner Jan 2014

First Record Of F_2 Hybrid Striped Bass (Morone Chrysops ♀ × Morone Saxatilis ♂ × Morone Chrysops ♀ × Morone Saxatilis ♂) In Kemer Dam Lake, Volkan Kizak, Yusuf Güner

Turkish Journal of Zoology

The morphometric and meristic characters of 2 F_2 hybrid striped bass (M. chrysops female × M. saxatilis male × M. chrysops female × M. saxatilis male) from the family Moronidae are described. Two specimens were caught from Kemer Dam Lake. The body of the F_2 hybrid striped bass was elongated, moderately compressed, and scaly. Dorsal surface and sides were silver and black to olive-gray, and the abdomen was white in color. Four or 5 longitudinal broken stripes ran above the lateral line to the caudal fin. The stripes were less visible behind the pectoral fins and below the lateral line. …


The Jumping Plant-Lice (Hemiptera: Psylloidea) Of Turkey: A Checklist And New Records, Jowita Drohojowska, Daniel Burckhardt Jan 2014

The Jumping Plant-Lice (Hemiptera: Psylloidea) Of Turkey: A Checklist And New Records, Jowita Drohojowska, Daniel Burckhardt

Turkish Journal of Zoology

A checklist is provided for the Turkish Psylloidea comprising 99 species, of which 1 is doubtful (Livia crefeldensis) and 6 are recorded for the first time from Turkey (Rhodochlanis bicolor, Euphyllura pakistanica, Camarotoscena lauta, Syntomoza unicolor, Baeopelma colorata, and Spanioneura persica). A key is provided for the 3 Spanioneura species associated with Prunus dulcis. Spanioneura pechai (Klimaszewski and Lodos) stat. rev. is removed from synonymy with S. turkiana.


Ichneumonid Parasitoids Of The Sawfly Cimbex Quadrimaculata (Müller) Feeding On Almonds In Antalya, Along With A New Parasitoid And New Record, Hi̇kmet Özbek Jan 2014

Ichneumonid Parasitoids Of The Sawfly Cimbex Quadrimaculata (Müller) Feeding On Almonds In Antalya, Along With A New Parasitoid And New Record, Hi̇kmet Özbek

Turkish Journal of Zoology

The sawfly Cimbex quadrimaculata (Müller) (Hymenoptera: Cimbicidae) has been identified as a serious defoliator of young almond plants in Antalya. Two ichneumonid parasitoids, Opheltes glaucopterus (Linnaeus) and Phobetes nigriceps (Gravenhorst) (Hymenoptera: Ichneumonidae: Ctenopelmatinae), were reared as larva-pupa parasitoids of C. quadrimaculata. Of these, P. nigriceps was obtained for the first time from C. quadrimaculata; it is a new record for the Turkish fauna as well as for the continent of Asia.


New Data About Ptyctimous Mites (Acari, Oribatida) In Polish Palm Houses, Wojciech Niedbala Jan 2014

New Data About Ptyctimous Mites (Acari, Oribatida) In Polish Palm Houses, Wojciech Niedbala

Turkish Journal of Zoology

In samples collected in 2012 at the palm house in Poznan, 5 species of ptyctimous mites were found; 3 of them were native species (Mesotritia nuda, Euphthiracarus cribrarius, Acrotritia ardua) and 2 were exotic species, pantropical Microtritia tropica and neotropical Phthiracarus phoxos. In the samples from the palm house in Lodz, 3 species were found; 2 of them were known from the palm house in Poznan (Acrotritia ardua and Phthiracarus ferrugineus), and the third has not been reported from Poland before: the very rare species Mesoplophora michaeliana, known so far from the southern part of the Western Palearctic. Some juvenile …


Checklist Of Bryozoa On The Coasts Of Turkey, Ferah Koçak, Si̇nem Önen Jan 2014

Checklist Of Bryozoa On The Coasts Of Turkey, Ferah Koçak, Si̇nem Önen

Turkish Journal of Zoology

The phylum Bryozoa includes a total of 185 species reported from the Turkish coasts of the Levantine Sea, the Aegean Sea, the Sea of Marmara, and the Black Sea. The class Gymnolaemata is represented by 159 species, followed by the class Stenolaemata (26 species). While the Aegean Sea had the highest species richness (139 species), the lowest bryozoan diversity (8 species) was reported from the Black Sea coast of Turkey. Only 2 alien species, Celleporaria brunnea and Rhynchozoon larreyi, were recorded from the Turkish coasts.


Checklist Of Echinodermata From The Coasts Of Turkey, Başak Öztoprak, Alper Doğan, Ertan Dağli Jan 2014

Checklist Of Echinodermata From The Coasts Of Turkey, Başak Öztoprak, Alper Doğan, Ertan Dağli

Turkish Journal of Zoology

According to the benthic studies on echinoderms inhabiting the coasts of Turkey, a total of 91 echinoderm species belonging to 5 classes have been reported. The Aegean Sea coast is represented by the highest number of species (76 species), followed by the Sea of Marmara (64 species), the Levantine Sea (51 species), and the Black Sea (17 species). Sixty-six echinoderm species were found on soft substrata, while 8 species were reported on hard substrata and 17 species on both soft and hard substrata. The majority of the echinoderm species (83 species) were found at depths ranging from 11 to 50 …


The Marine Arthropods Of Turkey, Ahmet Kerem Bakir, Tuncer Katağan, Hali̇m Vedat Aker, Tahi̇r Özcan, Murat Sezgi̇n, Abdullah Suat Ateş, Cengi̇z Koçak, Fevzi̇ Kirkim Jan 2014

The Marine Arthropods Of Turkey, Ahmet Kerem Bakir, Tuncer Katağan, Hali̇m Vedat Aker, Tahi̇r Özcan, Murat Sezgi̇n, Abdullah Suat Ateş, Cengi̇z Koçak, Fevzi̇ Kirkim

Turkish Journal of Zoology

This recent checklist of marine arthropods found on the coasts of Turkey represents a total of 1531 species belonging to 7 classes: Malacostraca (766 species), Maxillopoda (437 species), Ostracoda (263 species), Pycnogonida (27 species), Arachnida (26 species), Branchiopoda (7 species), and Insecta (5 species). Seventy-five species were classified as alien species in the region. This paper also includes the first record of the amphipod Melita valesi from the Levantine coast of Turkey (Kaş, Gulf of Antalya).


Cover And Contents Jan 2014

Cover And Contents

Turkish Journal of Zoology

No abstract provided.


Temporal Variation In The Reproductive Pattern Of Blood Cockle Anadara Antiquata From Pakistan (Northern Arabian Sea), Shahnaz Jahangir, Ghazala Siddiqui, Zarrien Ayub Jan 2014

Temporal Variation In The Reproductive Pattern Of Blood Cockle Anadara Antiquata From Pakistan (Northern Arabian Sea), Shahnaz Jahangir, Ghazala Siddiqui, Zarrien Ayub

Turkish Journal of Zoology

Sex ratios, size frequency, and reproductive patterns of blood cockle Anadara antiquata were studied from Sonmiani and Phitti Creek, Pakistan, from May 2004 to April 2005. At both sites, the overall sex ratio was significantly in favor of females. The population of A. antiquata at Sonmiani consisted of cockles of 31-80 mm in size and that at Phitti Creek of 21-100 mm in size; however, the majority of specimens were of 51-70 mm in size at both sites. Four stages of gametogenesis were identified in male and female cockles: 1) developing, 2) ripe, 3) spawned out, and 4) resorbing. No …


Birds And Small Urban Parks: A Study In A High Plateau City, Salvador Peris, Tinguaro Montelongo Jan 2014

Birds And Small Urban Parks: A Study In A High Plateau City, Salvador Peris, Tinguaro Montelongo

Turkish Journal of Zoology

The goal of the present study was to assess which variables influence the distribution of birds in urban parks. Twenty parks were studied in a city on the Spanish high plateau during the breeding season, and relationships among park characteristics, bird richness, and individual bird presences were established. The park area and tree cover accounted for 73.1% of the variation in bird richness. Although area size was the best predictor of species richness (65% of the variation), some species did not seem to be related to this variable but rather to others, such as vegetation and the degree of park …


Length-Weight Relationships Of 14 Fish Species From The Gulf Of Antalya (Northeastern Mediterranean Sea, Turkey), Yaşar Özvarol Jan 2014

Length-Weight Relationships Of 14 Fish Species From The Gulf Of Antalya (Northeastern Mediterranean Sea, Turkey), Yaşar Özvarol

Turkish Journal of Zoology

Length-weight relationships (LWRs) were determined for 14 fish species from the Gulf Antalya along the northeastern Mediterranean Sea coast of Turkey. Samples were collected using bottom trawl at depths varying from 25 to 150 m. The parameters a and b from the LWR formula W = aL^b were estimated. The values of the exponent b of the length-weight relationships ranged from 2.513 to 3.465. Seven species (Pagrus pagrus, Pagellus erythrinus, Nemipterus randalli, Merluccius merluccius, Citharus linguatula, Chelidonichthys lastoviza, Spicara flexuosa) indicated negative allometries, 5 species (Serranus cabrilla, Mullus surmuletus, Mullus barbatus barbatus, Upeneus moluccensis, Saurida undosquamis) indicated positive allometries, and …


Morphological Differentiation Among Species Of The Genus Mugil Linnaeus, 1758 (Mugilidae) From Côte D'Ivoire, Kouakou Theodore Konan, Abouo Beatrice Adepo-Gourene, Koffi Mexmin Konan, Germain Gourene Jan 2014

Morphological Differentiation Among Species Of The Genus Mugil Linnaeus, 1758 (Mugilidae) From Côte D'Ivoire, Kouakou Theodore Konan, Abouo Beatrice Adepo-Gourene, Koffi Mexmin Konan, Germain Gourene

Turkish Journal of Zoology

A study on the morphological diversity of the genus Mugil of the lagoons Ebrié and Grand-Lahou was carried out in order to differentiate species of Mugilidae in Côte d'Ivoire. Univariate and multivariate analyses of 40 metric and 11 meristic characters identified 3 homogeneous groups. This phenotypic plasticity within the genus Mugil allowed differentiating the species Mugil curema, M. bananensis, and M. cephalus. Contrary to the overlap presented by the metric parameters, meristic characters, in this case the number of branchiospines on the superior and inferior parts and the number of microbranchiospines on the first branchial arch, were very clearly discriminating …


The Response Of Eurasian Kestrel Falco Tinnunculus To Falconry At Deblin Military Airfield, East Poland, Ignacy Kitowski Jan 2014

The Response Of Eurasian Kestrel Falco Tinnunculus To Falconry At Deblin Military Airfield, East Poland, Ignacy Kitowski

Turkish Journal of Zoology

Birds, including kestrels, constitute a serious impediment to air traffic and are considered pests when they disrupt aviation operations. This study investigated the behaviour of kestrels at Deblin Military Airfield (eastern Poland) in response to bird strike risk management by means of falconry. Trained raptors changed the behaviour of kestrels. During the period when trained raptors worked at the airfield, kestrels were less often found there compared to the control period. During falconry sessions, kestrels perched less often compared to the control period. Kestrels also hovered less during falconry sessions compared to the control period. Falconry reduced the risk of …


Seasonal Distribution Of Trachurus Mediterraneus (Steindachner, 1868) In The Golden Horn Estuary, İstanbul, Nazli Demi̇rel, Ahsen Yüksek Jan 2014

Seasonal Distribution Of Trachurus Mediterraneus (Steindachner, 1868) In The Golden Horn Estuary, İstanbul, Nazli Demi̇rel, Ahsen Yüksek

Turkish Journal of Zoology

Seasonal changes in the distribution of an important commercial and recreational fish species, Trachurus mediterraneus (Steindachner, 1868), from the family Carangidae were investigated in the Golden Horn Estuary of İstanbul. Environmental conditions were also considered to evaluate distributional patterns in the region. Sampled fish size ranged between 7.5 and 20.1 cm in total length and 3.4 and 86.2 g in total weight during the sampling period. Adult individuals (>12.5 cm) preferred not to be in the estuary during the summer period, while only immature adults were found with a 7.5-12.5 cm total length size range from May to August …


Cover And Contents Jan 2014

Cover And Contents

Turkish Journal of Zoology

No abstract provided.


Effects Of Salinity Tolerances On Survival And Life History Of 2 Cladocerans, Di̇dem Gökçe, Duygu Özhan Turhan Jan 2014

Effects Of Salinity Tolerances On Survival And Life History Of 2 Cladocerans, Di̇dem Gökçe, Duygu Özhan Turhan

Turkish Journal of Zoology

Salinity alterations in freshwater ecosystems greatly affect the survival and life history of zooplankton and, therefore, have an effect on higher trophic levels. Salinity is an essential and critical factor in determining the presence, dominance, and succession of organisms. After being collected in the field, Scapholeberis mucronata and Simocephalus vetulus were brought to the laboratory in water. Under laboratory conditions (24 ± 1 °C; 16:8 h photoperiod), we evaluated the effect of different salt concentrations on the neonates. The LC_{50} values were determined at different halotolerance levels for S. mucronata (0.375 g L^{-1}) and S. vetulus (0.250 g L^{-1}). Results …


Deer On The Railway Line: Spatiotemporal Trends In Mortality Patterns Of Roe Deer, Tomas Kusta, Michaela Hola, Zdenek Keken, Milos Jezek, Tomas Zika, Vlastimil Hart Jan 2014

Deer On The Railway Line: Spatiotemporal Trends In Mortality Patterns Of Roe Deer, Tomas Kusta, Michaela Hola, Zdenek Keken, Milos Jezek, Tomas Zika, Vlastimil Hart

Turkish Journal of Zoology

Traffic-related mortality of free-ranging animals is among the most commonly observed human-wildlife conflicts. These conflicts pose serious threats to human safety as well as having great economic consequences. Although considerable attention has been paid to the role of roads in affecting free-ranging animals, the effects of railways have been less studied. Our study provides initial insights into the spatial and temporal variability of the roe deer-train collisions at 4 selected railway sections in the Czech Republic. Using data on 69 roe deer-train collisions collected during 2009, we tested the effects of railway section length, train frequency, relative abundance of roe …


New Teratological Cases In Platygastridae And Pteromalidae (Hymenoptera), Ovidiu Alin Popovici, Mircea Dan Mitroiu, David G. Notton Jan 2014

New Teratological Cases In Platygastridae And Pteromalidae (Hymenoptera), Ovidiu Alin Popovici, Mircea Dan Mitroiu, David G. Notton

Turkish Journal of Zoology

Very few cases of teratological specimens, i.e. specimens displaying morphological abnormalities, have been cited among Platygastridae and Pteromalidae. From the Platygastridae we present 5 cases of symphysocery [A8-A9 in Metaclisis sp.; A3-A5 and A7-A9 in Sceliomorpha sp.; A5-A6 in Scelio sp. 1; A9-A10 in Idris sp., and a completely modified antenna in Gryon monspeliense (Picard 1924)]; a helicomery in Opisthacantha sp.; a hypertrophied interantennal prominence and central keel in Triteleia peyerimhoffi (Kieffer 1906); a schistocery concerning A5 in Apegus sp.; and a gynandromorph specimen of Scelio sp. 2. In the Pteromalidae we found 2 cases of symphysocery in Systasis parvula …


Does Light Duration (Photoperiod) Have An Effect On The Mortality And Welfare Of Cultured Oreochromis Niloticus And Clarias Gariepinus?, Moshood Keke Mustapha, Olatoyosi Taofeek Oladokun, Mubarak Mayowa Salman, Idris Adewale Adeniyi, Dele Ojo Jan 2014

Does Light Duration (Photoperiod) Have An Effect On The Mortality And Welfare Of Cultured Oreochromis Niloticus And Clarias Gariepinus?, Moshood Keke Mustapha, Olatoyosi Taofeek Oladokun, Mubarak Mayowa Salman, Idris Adewale Adeniyi, Dele Ojo

Turkish Journal of Zoology

One hundred and eighty juveniles of Oreochromis niloticus with a respective smean total length and weight of 7.30 ± 0.5 cm and 7.05 ± 0.5 g and 180 fry of Clarias gariepinus with a mean total length and weight of 14.90 ± 0.1 cm and 32.10 ± 0.5 g were separately cultured in 3 replicates in 18 plastic tanks (1 × 1 × 0.5 m; 200 L), 9 for O. niloticus and 9 for C. gariepinus, for photoperiods of 24 L: 0 D, 0 L: 24 D, and 12 L: 12 D for 13 weeks. Mortality and welfare impairment were …


Spectrophotometric Determination Of Molybdenum Using Surfactant-Mediated Liquid--Liquid Extraction, Rameshwar Dass, Jitander Kumar Kapoor, Sunita Gambhir Jan 2014

Spectrophotometric Determination Of Molybdenum Using Surfactant-Mediated Liquid--Liquid Extraction, Rameshwar Dass, Jitander Kumar Kapoor, Sunita Gambhir

Turkish Journal of Chemistry

A new spectrophotometric method has been developed for determination of molybdenum using surfactant-mediated liquid--liquid extraction. Molybdenum(V) obtained by ascorbic acid reduction in 2.5 M H_2SO_4 reacted spontaneously with thiocyanate and cetyl trimethyl ammonium bromide (CTAB), forming an intense orange yellow complex that was extracted quantitatively into 1,2-dichloroethane and absorbed at 460 nm. The absorbance of the extract was found to be stable for more than 24 h. Beer's law was obeyed over the concentration range 0.1--4.2 \mu g Mo mL^{-1} of the extract. The linear range for an accurate determination was found to be 1.2--2.6 \mu g Mo mL^{-1}. The …


Partial Purification And Biochemical Characterization Of An Extremely Thermo- And Ph-Stable Esterase With Great Substrate Affinity, Esra Özbek, Yakup Kolcuoğlu, Leyla Konak, Ahmet Çolak, Fulya Öz Jan 2014

Partial Purification And Biochemical Characterization Of An Extremely Thermo- And Ph-Stable Esterase With Great Substrate Affinity, Esra Özbek, Yakup Kolcuoğlu, Leyla Konak, Ahmet Çolak, Fulya Öz

Turkish Journal of Chemistry

An esterase from a thermophilic bacterium, Geobacillus sp. DF20, was partially purified. Final purification factor was found to be 64.5-fold using Q-Sepharose ion exchange column chromatography. Native polyacrylamide gel electrophoresis indicated the presence of a single active esterase. The substrate specificity of this esterase was high for p-nitrophenyl butyrate (pNPB) substrate. The optimum pH and temperature for the enzyme activity were 7.0 and 50 ^°C, respectively. The pH and heat stability profiles show that this enzyme is more stable under neutral conditions at 50 ^°C. K_m and V_{max} values for this esterase acting on pNPB were 0.12 mM and 54.6 …


In Vitro Effects Of Pesticide Exposure On The Activity Of The Paraoxonase-1 Enzyme From Sheep Liver Microsomes, Büşra Cebeci̇, Zuhal Alim, Şükrü Beydemi̇r Jan 2014

In Vitro Effects Of Pesticide Exposure On The Activity Of The Paraoxonase-1 Enzyme From Sheep Liver Microsomes, Büşra Cebeci̇, Zuhal Alim, Şükrü Beydemi̇r

Turkish Journal of Chemistry

The organophosphate target enzyme paraoxonase-1 (PON1) has been extensively studied in toxicology. Pesticides are organophosphate compounds that are commonly used in agriculture. They are also used as nerve gases, such as sarin and soman. Therefore, the effects of these compounds on enzymatic activity are well known. In the present study, we investigated the in vitro effects of fenoxaprop-p-ethyl, lambda cyhalothrin, imidacloprid, and dichlorvos pesticides on sheep liver microsomal PON1. The enzyme was purified approximately 141-fold with a specific activity of 1822.22 EU/mg proteins. The pesticides inhibited sheep liver PON1 in vitro, and the IC_{50} values for these compounds were 0.0103, …


Antioxidant, Anticholinesterase, And Antimicrobial Activities And Fatty Acid Constituents Of Achillea Cappadocica Hausskn. Et Bornm., Abdulselam Ertaş, Mehmet Boğa, Nesri̇n Haşi̇mi̇, Yeter Yeşi̇l, Ahmet Ceyhan Gören, Gülaçti Topçu, Ufuk Kolak Jan 2014

Antioxidant, Anticholinesterase, And Antimicrobial Activities And Fatty Acid Constituents Of Achillea Cappadocica Hausskn. Et Bornm., Abdulselam Ertaş, Mehmet Boğa, Nesri̇n Haşi̇mi̇, Yeter Yeşi̇l, Ahmet Ceyhan Gören, Gülaçti Topçu, Ufuk Kolak

Turkish Journal of Chemistry

This study was the first fatty acid analysis and biological activity report on an endemic Achillea species, Achillea cappadocica Hausskn. et Bornm. The major compounds in the fatty acid were identified as oleic (34.7 %), palmitic (23.1 %), and linoleic acids (20.6 %). The methanol and water extracts indicated higher ABTS cation radical scavenging activity than that of \alpha-tocopherol and BHT at 100 \mu g/mL. The acetone extract showed 70.62 % inhibitory activity against butyrylcholinesterase at 200 \mu g/mL. The acetone and methanol extracts exhibited moderate antimicrobial activity.


Convenient Synthesis Of New Polysubstituted Isoindole-1,3-Dione Analogues, Ayşe Tan, Mustafa Zahri̇tti̇n Kazancioğlu, Derya Aktaş, Özlem Gündoğdu, Ertan Şahi̇n, Nurhan Ki̇shali, Yunus Kara Jan 2014

Convenient Synthesis Of New Polysubstituted Isoindole-1,3-Dione Analogues, Ayşe Tan, Mustafa Zahri̇tti̇n Kazancioğlu, Derya Aktaş, Özlem Gündoğdu, Ertan Şahi̇n, Nurhan Ki̇shali, Yunus Kara

Turkish Journal of Chemistry

Three new polysubstituted isoindole-1,3-diones were prepared from 2-ethyl-5-hydroxy-3a,4,5,7a-tetrahydro-isoindole-1,3-dione. The reaction of 2-ethyl-5-hydroxy-3a,4,5,7a-tetrahydro-isoindole-1,3-dione with m-CPBA gave the corresponding epoxide. The triacetate derivative was obtained via cis-hydroxylation using OsO_4, followed by acetylation. An aromatic derivative, a secondary reaction product, was also formed during the acetylation. Finally, a tricyclic derivative from 2-ethyl-5-hydroxy-3a,4,5,7a-tetrahydro-isoindole-1,3-dione was synthesized via dichloroketene addition under microwave irradiation. The exact structures of epoxide and tricyclic derivatives were determined by X-ray diffraction analysis.