Güncel Gönderiler: Biyoloji Bölümü
Toplam kayıt 543, listelenen: 261-280
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Variations of peroxidase activity among Salvia species
(Elsevier Sci Ltd, 2007)Peroxidase was partially purified from Salvia species such as Salvia tomentosa Miller, Salvia virgata Jacq and Salvia viridis L. using solid (NH4)(2)SO4 precipitation and dialysis methods. We investigated the effect of ... -
Synthesis, characterization, crystal structure and biological activity of the cobalt(IV) complex of 2,6-diacetylpyridine dioxime: [Co(dapdo)(2)]
(Springer, 2007)The cobalt(IV) complex of 2,6-diacetylpyridine dioxime (dapdoH(2)) was prepared and characterized by X-ray diffraction, elemental analysis and FT-IR. The titled complex was found to crystallize in the orthorhombic space ... -
Seasonal dynamics of phytoplankton assemblages across nutrient gradients in shallow hypertrophic Lake Manyas, Turkey
(Taylor & Francis Inc, 2006)Species composition, abundance and size distribution (the average measure of the longest cell dimension and surface area to volume ratio) of phytoplankton in the shallow hypertrophic Lake Manyas, Turkey were studied between ... -
The vertical distribution of phytoplankton assemblages of Lake James, North Carolina in relation to mixing depth and nitrate and phosphate concentrations
(Ohio Acad Science, 2006)Phytoplankton, nitrate (NO3-) (mg L(.)1), and phosphate (Po-4-(3-)) (mg V) concentrations were studied in Lake James, NC, during 1997 and 1998. Depths of 2.0, 10, and 30 m were chosen for sampling to determine the vertical ... -
Age, growth and reproductive characteristics of chub, Leuciscus cephalus (L., 1758) in the Ikizcetepeler dam lake (Balikesir), Turkey
(Wiley, 2007)In this study, the population structure, growth and reproduction characteristics of 414 chub (Leuciscus cephalus L., 1758) from the Ikizcetepeler dam lake were investigated monthly between January and December 2000. Age ... -
Effects of some antibiotics on paraoxonase from human serum in vitro and from mouse serum and liver in vivo
(Pharmaceutical Soc Japan, 2006)Paraoxonase (PON1, EC 3.1.8.1) is an esterase protein which plays multifunctional role in metabolism. Therefore, in this study the effects of commonly used antibiotics, namely sodium ampicillin, ciprofloxacin, rifamycin ... -
An evaluation of cytosolic erythrocyte carbonic anhydrase and catalase in carcinoma patients: An elevation of carbonic anhydrase activity
(Pergamon-Elsevier Science Ltd, 2006)Objectives: The antioxidant enzyme catalase and the CO2/HCO3- exchange enzyme carbonic anhydrase are both present in significant amounts in the cytosol of erythrocytes. The aim of the present study was to investigate whether ... -
A review of length-weight relationships of fishes from freshwaters of Turkey
(Blackwell Publishing, 2006)This paper presents 145 length-weight relationships gathered from the literature pertaining to 30 Turkish freshwater fish species belonging to six families. The value of the slope b ranged from 2.04 for Carassius carassius ... -
Leaf anatomy and hairs of Turkish Satureja L. (Lamiaceae)
(Polska Akad Nauk, 2007)There are some taxonomic uncertainties within the Turkish members of Satureja. It is extremely difficult to distinguish some Satureja species because of their great morphological similarity. Satureja species are used as ... -
Synthesis, crystal structure and biological activity of the nickel(II) complex of 2,6-diacetylpyridinedihydrazone
(Int Union Crystallography, 2007)A complex of Ni (II) with 2,6- diacetylpyridinedihydrazone (L) towards nickel(II) has been prepared and characterized by means of elemental analyses, IR, electronic spectra and single crystal X-ray analyses. [NiL2](NO3), ... -
Effect of cypermethrin exposed hosts on egg-adult development time, number of offspring, sex ratio, longevity, and size of Apanteles galleriae Wilkinson (Hymenoptera : Braconidae)
(Soc Royale Zoologique Belgique, 2007)The effects of sub-lethal doses of cypermethrin onto the larval host Achoria grisella Fabr. (Lepidoptera : Pyralidae) were evaluated on egg-adult development time, number of offspring produced, sex ratio, longevity, and ... -
Sulfonamide inhibition study of the beta-class carbonic anhydrase from the caries producing pathogen streptococcus mutans
(Pergamon-Elsevier Science Ltd, 2015)Streptococcus mutans, the oral pathogenic bacterium provoking dental caries formation, encodes for a beta-class carbonic anhydrase (CA, EC 4.2.1.1), SmuCA. This enzyme was cloned, characterized and investigated for its ... -
A new species of Matthiola R. Br. (Brassicaceae) from Turkey
(Blackwell Publishing, 2006)A new species, Matthiola trojana T. Dirmenci, F. Satil & G. Tumen (Brassicaceae), is described from Turkey. Diagnostic characters, description, detailed illustrations, and taxonomic comments are given. Its characteristics ... -
The relationships between certain physical and chemical variables and the seasonal dynamics of phytoplankton assemblages of two inlets of a shallow hypertrophic lake with different nutrient inputs
(Springer, 2007)dThe relationships between water discharge, temperature, total dissolved solids (TDS) conductivity, turbidity, nitrate, ammonium, phosphate and the seasonal dynamics of phytoplankton assemblages of two inlets of a shallow ... -
Identification of cytotoxic sesquiterpenes from Laurus nobilis L.
(Elsevier Sci Ltd, 2007)A new sesquiterpene, lauroxepine and six known sesquiterpene lactones, were obtained through bioactivity-directed isolation from a methanol extract of the fruits of Laurus nobilis. The hexane-soluble part of the methanol ... -
Spatial and seasonal variations in chlorophyll-nutrient relationships in the shallow hypertrophic Lake Manyas, Turkey
(Springer, 2006)Regression and correlation analyses were used to predict responses of phytoplankton biomass (chlorophyll) (mu g L-1) to nitrate (NO3) (mg L-1), phosphate (PO4) (mg L-1) and ammonium (NH4) (mg L-1) dynamics in the shallow ... -
Site-directed mutagenesis of Asn67/IIe67 in human CAII and expression of mutant protein in E-coli
(Blackwell Publishing, 2006)yok -
Molecular characterisation and comparative analysis of the human C/EBP delta promoter to mammalian homologues
(Blackwell Publishing, 2006)yok -
Nitrogen composition during vegetative and generative growth stages of two Origanum taxa from Turkey
(Parlar Scientific Publications (P S P), 2007)Origanum onites and Origanum vulgare ssp. hirtum were collected from Balikesir, on the north west of Turkey. The nitrogen contents in organs such as root, stem, leaf and flower of Origanum onites and Origanum vulgare ssp. ...
