Güncel Gönderiler: Biyoloji Bölümü
Toplam kayıt 538, listelenen: 241-260
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Partial characterization of lettuce (Lactuca sativa L.) polyphenol oxidase
(Springer, 2007)Polyphenol oxidase (PPO) from garden lettuce (Lactuca sativa L.) was partially purified by ammonium sulphate ((NH4)(2)SO4) precipitation and dialysis, and then some of its kinetic properties such as optimum pH and temperature, ... -
Inhibition kinetic of Ocimum basilicum L. polyphenol oxidase
(Walter De Gruyter Gmbh, 2007)The paper reports the inhibition model of the purified polyphenol oxidase (PPO) activity from basil (Ocimum basilicum L.) with L-cysteine, ethylenediaminetetraacetic acid (EDTA), ascorbic acid, gallic acid, D,L-dithiothreitol, ... -
Synthesis, crystal structure and biological activity of the nickel(II) complex of 2,6-diacetylpyridinedihydrazone
(Springer, 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) was ... -
Nitrito complexes of nickel(II), copper(II) and cobalt(II) with tridentate pyrazole based planer ligand: Structure, spectroscopy, thermal properties and imitative nuclease activity
(Elsevier Science SA, 2015)Functional documentation of metal complexes are essential for various aspects including gene function/regulation and drug design for lethal diseases like cancer (Sigel and Martin (1982), Peters et al. (1997), Martin and ... -
Partial characterization of peroxidase from the leaves of thymbra plant (Thymbra spicata L. var. spicata)
(Springer, 2007)Peroxidase (EC 1.11.1.7; donor: hydrogen-peroxide oxidoreductase) catalyses the oxidation of various electron donor substrates (e.g. phenols, aromatic amines). In this study, the peroxidase was extracted from Thymbra spicata ... -
Essential oil and antimicrobial activity of wild and cultivated Origanum vulgare L. subsp hirtum (Link) letswaart from the Marmara region, Turkey
(John Wiley & Sons Ltd, 2007)The family Lamiaceae is represented by 45 genera, 546 species and 730 taxa in Turkey. The genus Origanum is represented in Turkey by 22 species; the ratio of endemism in the genus is 63%. Origanum vulgare subsp. hirtum ... -
Cloning and expression of P-Brutia GST-zeta in E-coli
(Blackwell Publishing, 2007)GlutathioneS-Transferases (GSTs, EC.2.5.1.18) are complex andwidespread enzyme superfamily that detoxify endobiotics and xen-obiotics, and forming generally water soluble and less toxic gluta-thione(GSH)S-conjugate. Since ... -
Antidepressant and antipsychotic drugs differentially affect pon1 enzyme activity
(Taylor & Francis Ltd, 2015)Human serum paraoxonase (PON1, EC 3.1.8.1.) is a high-density lipid (HDL)-associated, calcium-dependent enzyme. In this study, the effects of Haloperidol, Fluoxetine hydrochloride, Diazepam and Acepromazine drugs used for ... -
Different doses of radiation on agar colony forming development in C6 glioma cells: Assessment by thymidine labeling index, and bromodeoxyuridine labeling index
(Ortadogu Ad Pres & Publ Co, 2007)Objective: Gliomas are relatively frequent in adults, and are among the most malignant primary brain tumors. Glioblastoma. multiforme, like many other tumors that exhibit radiation sensitivity in vitro, seems to be very ... -
The morphological and anatomical properties of endemic Crocus leichtinu (D. Dewar) bowles (Iridaceae) in Turkey
(Pakistan Botanical Soc, 2007)In this investigation, some morphological and anatomical characteristics of Crocus leichtlinii (D.Delwar) Bowles, an endemic species which has flowering time in early spring, were observed. The specimen was collected from ... -
In vivo effects of oral contraceptives on paraoxonase, catalase and carbonic anhydrase enzyme activities on mouse
(Pharmaceutical Soc Japan, 2007)Many effects that oestrogens and progestrogens used in oral contraceptive (OC) have on enzyme physiology are of importance on homeostasis. This study was carried out in order to determine the in vivo effect of three oral ... -
In vitro inhibition of the carbonic anhydrase from saanen goat (Capra hircus) with pesticides
(Academic Press Inc Elsevier Science, 2007)This study was conducted to determine the in vitro effects of four commonly used pesticides (Nuarimol(Tm), Fenarimol(TM), Parathionmethyl(Tm) and 2,4-D-TM) on erythrocyte carbonic anhydrase (CA) activity from Saanen goats ... -
Inhibition kinetics of polyphenol oxidase by glutamic acid
(Springer, 2007)The inhibition of polyphenol oxidase (PPO) by glutamic acid was investigated. Application of different concentrations of glutamic acid to mushroom solution and Ocimum basilicum L. extract showed that glutamic acid appeared ... -
Effects of 5-aza-2 '-deoxycytidine on biological parameters of larval endoparasitoid Apanteles galleriae (Hymenoptera : Braconidae) and on its host Achoria grisella (Lepidoptera : Pyralidae)
(Entomological Society America, 2007)The effects of 5-Aza-2'-deoxycytidine (5-Aza-dC), an inhibitor of DNA methyltransferase, were assessed on egg-to-adult developmental time, longevity, size, number of offspring produced, and sex ratio of the larval ... -
Prevalence of erythrocyte glucose-6-phosphate dehydrogenase (G6PD) deficiency in the population of western Turkey
(Elsevier Science Inc, 2006)Background. Newborn G6PD deficiency screening has been recognized as an essential component of public health care in most developed and some Mediterranean countries. However, such screening is yet to be widely embraced in ... -
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 ...
