Güncel Gönderiler: Biyoloji Bölümü
Toplam kayıt 543, listelenen: 301-320
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Composition of essential oils from five endemic Sideritis species
(Allured Publ Corp, 2003)S. argyrea P.H. Davis, S. armeniaca Bornm., S. hololeuca Boiss. et Heldr. Apud Bentham, S. stricta Boiss. et Heldr. Apud Bentham and S. taurica Stephan ex Willd., are endemic species in Turkey. Water-distilled essential ... -
Fatty acid composition of seeds of Satureja thymbra and S. cuneifolia
(Verlag Z Naturforsch, 2003)The chemical composition of fatty acid methyl esters (FAMEs) from seeds of S. thymbra and S. cuneifolia were analyzed by GC/MS. 7 FAMEs were identified from the seeds of S thymbra mainly as 9-octadecenoic acid methyl ester ... -
Comparative analysis of the Xenopus C/EBP alpha promoter to mammalian homologues
(Blackwell Publishing, 2005)yok -
Inhibition of polyphenol oxidase obtained from various sources by 2,3-diaminopropionic acid
(Wiley, 2005)This paper reports for the first time the inhibition of the catecholase activities of mushroom, artichoke (Cynara scolymus L) and Ocimum basilicum L polyphenol oxidase by 2,3-diaminopropionic acid. Polyphenol oxidases from ... -
Three new rust species (Uredinales) from Turkey
(Mycotaxon Ltd, 2005)This paper describes and illustrates three new rust species, Phragmidium hendersonii on Potentilla, Puccinia gjaerumii on Bellardiochloa polychroa and Puccinia asyneumatis on Asyneuma amplexicaule. -
Polyphenol oxidase activity of oregano at different stages
(Elsevier Sci Ltd, 2005)The effects of pH and temperature on polyphenol oxidase (PPO) activity of organs such as root, stem and leaf, of Origanum vulgare ssp. hirtum, collected at different stages (vegetative and generative) and from various ... -
Purification and characterization of dihydropyrimidinase from Albizzia julibrissin
(Pakistan Botanical Soc, 2005)Dihydropyrimidinase (DHPase) was purified 74-fold over the initial Albizzia extract using heat treatment, ammonium sulphate precipitation and sephadex G-200 column chromatography. its molecular mass, determined by SDS-PAGE, ... -
Fatty acid compositions of seed oils of three Turkish salvia species and biological activities
(Kluwer Academic/Plenum Publishers, 2005)The fatty acid composition of seed extracts of Salvia bracteata, S. aethiopis, and S. candidissima ssp. candidissima were analyzed by GC/MS. The main compound of S. bracteata, S. aethiopis, and S. candidissima ssp. candissima. ... -
Composition of the essential oil of Myrrhoides nodosa (L.) Cannon from Turkey
(Allured Publ Corp, 2005)A water-distilled essential oil from herbal parts of Myrrhoides nodosa (L.) Cannon was analyzed by GC and GC/ MS using polar and non-polar columns. Methyl chavicol (74.1%) was characterized as the main component of this ... -
The essential oil of Salvia limbata C.A. Meyer growing in Turkey
(Allured Publ Corp, 2005)Water-distilled essential oils from the aerial parts of Salvia limbata from two areas in eastern Turkey were analyzed by GC and GC/MS. Forty-eight and 42 components were characterized representing 95.6-98.1% of the compounds ... -
Characterization and purification of polyphenol oxidase from artichoke (Cynara scolymus L.)
(Amer Chemical Soc,, 2005)In this study, the polyphenol oxidase (PPO) of artichoke (Cynara scolymus L.) was first purified by a combination of (NH4)(2)SO4 precipitation, dialysis, and a Sepharose 4B-L-tyrosine-p-aminobenzoic acid affinity column. ... -
Temperature and food source effects on adult longevity of Apanteles galleriae Wilkinson (Hymenoptera : Braconidae)
(Entomol Soc Amer, 2003)We investigated the effects of temperature and food sources on the longevity of Apanteles galluriae Wilkinson (Hymenoptera: Braconidae), a koinobiont solitary larval endoparasitoid reared on Achroia grisella F. (Lepidoptera: ... -
Cloning, characterization and anion inhibition study of a beta-class carbonic anhydrase from the caries producing pathogen streptococcus mutans
(Pergamon-Elsevier Science Ltd, 2015)The oral pathogenic bacterium involved in human dental caries formation Streptococcus mutans, encodes for two carbonic anhydrase (CA, EC 4.2.1.1) one belonging to the alpha- and the other one to the beta-class. This last ... -
Purification of mulberry (Morus alba L.) polyphenol oxidase by affinity chromatography and investigation of its kinetic and electrophoretic properties
(Elsevier Science Bv, 2004)Polyphenol oxidase (PPO) was isolated from mulberry (Morus alba L.) fruit using a Sepharose 4B-L-tyrosine-p-amino benzoic acid affinity column. The purified enzyme was migrated as a single band on native and SDS-poliacrylamide ... -
Investigations on the biology of red mullet (Mullus barbatus Linnaeus, 1758) in Edremit Bay, Aegean Sea, Turkey
(Scientific Technical Research Council Turkey, 2000)In this study, has been carried out to investigate some growth features of the red mullet (Mullus barbatus Linnaeus, 1758) which is the important commercially species of the North Aegean Sea. Have been examined: Sex ... -
Essential oils of annual Sideritis species growing in Turkey
(Swets Zeitlinger Publishers, 2000)Water distilled essential oils of five annual Sideritis species collected from different regions of Turkey were analysed by GC/MS. Results are tabulated and compared with main components of the essential oils of perennial ... -
Determination of kinetic properties of polyphenol oxidase from Thymus (Thymus longicaulis subsp chaubardii var. chaubardii)
(Elsevier Science Sa, 2004)A partial characterization of polyphenol oxidase (PPO) activity of Thymus longicaulis subsp. chaubardii var. chaubardii is described. Polyphenol oxidase of Thymus was isolated by (NH4)(2)SO4 precipitation and dialysis. The ... -
Composition of the essential oil of Nepeta fissa C.A. Meyer
(Allured Publ Corp, 2000)Water distilled oil of the herbal parts of Nepeta fissa (Labiatae) was analyzed by GC/MS. Thirty seven compounds representing 95.1% of the oil were identified with caryophyllene oxide (24%) and beta caryophyllene (8.3%) ... -
House mice with metacentric chromosomes in the Middle East
(Hereditas-Distribution, 2000)The western house mouse (Mus musculus domesticus) is standardly characterised by a karyotype of 40 acrocentric chromosomes. However, within the West European and North African parts of its range there are numerous local ...
