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Articles by Neriman ozhatay
Total Records ( 3 ) for Neriman ozhatay
  Ilkay Orhan , Betul Demirci , Iman Omar , Huma Siddiqui , Erdal Kaya , M. Iqbal Choudhary , Gulay Ecevit-GenC , Neriman ozhatay , Bilge Sener and K. Husnu Can Baser
  Essential oil compositions and antioxidant potentials of fourteen ethanol (75%) root extracts prepared from twelve taxa of the genus Paeonia (Paeoniaceae), including P. arietina Anders., P. daurica Andrews, P. xkayae N. Özhatay, P. kesrouanensis Thiéb., P. mascula (L.) Miller subsp. arasicola G. Kaynak, ö. Yilmaz & R. Daşkin, P. mascula (L.) Miller subsp. bodurii N. Özhatay, P. cf. mascula L. (Mill.) subsp. mascula (two samples from central and northeastern Anatolia), P. cf. officinalis Retz., P. peregrina Miller (two samples from western and northwestern Anatolia), P. tenuifolia L., P. turcica Davis & Cullen, and P. wittmanniana Hartwiss ex Lindl. were assessed. The chromosome numbers of the root tips of the species were examined using chromosome staining technique with Shiff’s reagent under Leitz microscope. The essential oils of the roots of the Paeonia species were analyzed by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) and the major components were identified as salicylaldehyde (10%–94.4%), cis-myrtanal (5.5%–59.7%), and methyl salicylate (2%–52.2%). Antioxidant potentials were tested against 1,1-diphenyl-2-picrylhydrazyl (DPPH) and nitric oxide (NO) radicals using propyl gallate and rutin as the references. Total phenolic contents of the ethanol extracts were determined using Folin-Ciocalteau’s method. The extracts exerted moderate NO scavenger effect and displayed insignificant DPPH radical scavenger activity at 500 μg mL−1. On the other hand, P. daurica, P. tenuifolia and P. cf. mascula subsp. mascula are diploids with 2n=10, while other nine taxa are tetraploids with 2n = 20.
  Neriman OZHATAY , Sukran KULTUR and Serdar ASLAN
  The fourth check-list of the series entitled “Additional taxa to the Flora of Turkey” comprises a total of 175 taxa based on data given in 162 papers published up until the end of 2007. It provides details of taxa not recorded in the 11 volumes of the Flora of Turkey and the East Aegean Islands nor in the there previously published supplementary check-lists.
  Mine KOCYIGIT and Neriman OZHATAY
  Allium dentiferum Webb & Berthel and Allium dodecanesii Karavokyrou & Tzanoudak were collected during a floristic study of South Anatolia. A. dodecanesii is reported as a new record for the flora of Turkey. Although collected earlier by Aznavour, Bothmer, and Brullo, specimens of A. dentiferum were misinterpreted and the species was thus not recorded for the flora of Turkey. We provide drawings and photographs of the species, and maps of their distribution in Turkey.
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