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  • Öğe
    Karyotypes of Nannospalax (Palmer 1903) populations (Rodentia: Spalacidae) from centraleastern Anatolia, Turkey
    (Publishing on Hystrix, 2010) Coşkun, Yüksel; Ulutürk, Servet; Kaya, Alaettin
    Sono stati analizzati i cariotipi di 20 (11 maschi e 9 femmine) Nannospalax catturati, nel periodo 2006-2009, in 11 località dell’Anatolia centro-orientale (Turchia). Sono state individuate sei diverse forme cromosomiche (2n=49; 2n=50; 2n=52; 2n=54; 2n=60a e 2n=60b), corrispondenti a N. nehringi (N = 3), N. ehrenbergi, N. munzuri e N. tuncelicus. Nella provincia di Malatya è stata confermata la presenza di due popolazioni (2n=60a e 2n=60b), separate dal fiume Thoma. La forma 2n = 49, rinvenuta presso Pülümür, potrebbe essere un nuovo taxon.
  • Öğe
    Callus induction and plant regeneration from different explants of actinidia deliciosa
    (Springer Nature, 2008-10-31) Akbaş, Filiz; Işıkalan, Çiğdem; Namlı, Süreyya
    In this study, an efficient procedure was developed for callus induction and regeneration of kiwifruit (Actinidia deliciosa) using different organs of shoots developed under in vitro conditions. Effects of explants source and media (M1, 1.0 mg l-1 BA + 2.0 mg l-1 2,4-D-M 2, 1.0 mg l-1 NAA + 2.0 mg l-1 2,4-D) on initiation of callus were examined in order to obtain callus for organogenesis. The best callus for plant regeneration was obtained from leaf explants on Murashige and Skoog's medium (MS) supplemented with M2. Formation of callus from leaf of kiwifruit (A. deliciosa) was cultured in MS medium containing different concentration of N6-benzylaminopurin (BA; 0.0, 1.0, 2.0, 4.0, 6.0, 8.0 mg l-1) for callus proliferation and plant regeneration. Although the first shoot formation was appeared in medium containing 6.0 and 8.0 mg l-1 BA, the best shoots formation was obtained in medium with 4.0 mg l-1 BA.
  • Öğe
    A detailed chemical and biological investigation of twelve allium species from Eastern Anatolia with chemometric studies
    (Wiley-Blackwell, 2020-11-14) İzol, Ebubekir; Temel, Hamdi; Yılmaz, Mustafa Abdullah; Yener, İsmail; Tokul Ölmez, Özge; Kaplaner, Erhan; Fırat, Mehmet; Haşimi, Nesrin; Öztürk, Mehmet; Ertaş, Abdulselam
    Allium species are widely consumed as food all over the world. The phenolic profile of ethanol extracts of aerial parts and roots of 12 Allium species, collected from five different Eastern Anatolia regions, were studied using LC-MS/MS. In vitro antioxidant, anticholinesterase, cytotoxic and antimicrobial activities were also tested. The multivariate analyses were performed using principal component and hierarchical cluster analyses. Seventeen of 27 standard compounds were detected in all Allium species. The major components were mainly identified as quinic acid, malic acid, vanillin, and p-coumaric acid. The aerial parts possessed better antioxidant activity than roots. Aerial parts of A. atroviolaceum, A. chrysantherum, A. kharputense, and A. shirnakiense exhibited high cytotoxic activity against DLD-1 colon cancer cell lines (IC50 12.5 μg/mL). A. shatakiense and A. vineale demonstrated good antimicrobial activity against S. aureus and E. coli (MIC 75 μg/mL). According to chemometric analysis, differences were detected between aerial parts and the roots. The aerial parts of A. atroviolaceum, A. chrysantherum, A. kharputense, and A. shirnakiense could be potent in the pharmaceutical industry while A. shatakiense and A. vineale in the food industry after further investigations.