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  • Küçük Resim
    Öğe
    Antimicrobial Activity of Centaura derderiifolia, Stachys aleurites and Anthemis aciphylla
    (2009) Güven, Kıymet; Karabacak, Ersin; Çelik, Sezgin; Uysal, İsmet
    The antimicrobial activity of the ethanol, aseton, ethyl asetate and chloroform extracts from Centaurea derderiifolia Wagenitz (Asteraceae) , Stachys aleurites Boiss. (Lamiaceae) and Anthemis aciphylla Boiss. var.aciphylla (Asteraceae) were investigated by agar-well diffusion assay. These extracts were tested in vitro against 26 bacterial and 3 yeast species. Etyhl acetate and acetone extracts of C. derderiifolia, S. aleurites and A. a.var. aciphylla showed antimicrobial activity in varying degrees on all the microorganisms tested. However, chloroform and ethanol extracts of all the plants were not active on some microorganisms tested. Ethyl asetate extracts of the samples exhibited stronger and broader spectrum of antimicrobial activity as compared to ethanol, aseton and chloroform extracts. Therefore, minimal inhibitory concentration (MIC) of only ethyl acetate extracts of the samples was determined for seven bacteria chosen from agar-well diffusion assay. MIC values of the extracts were between 250-125 ?g/ml. In conclusion, ethyl asetate extract of C. derderiifolia was the most active against Aeromonas hydrophila both in agar-well diffusion and MIC assays
  • Küçük Resim
    Öğe
    Ethnobotanical aspects of Kapıdağ Peninsula (Turkey)
    (2010) Uysal, İsmet; Onar, Sinan; Karabacak, Ersin; Çelik, Sezgin
    Türkiye’nin Kuzeybatı Marmara Bölgesi’nde yer alan ve 300 km2 yüzölçümü olan Kapıdağ Yarımadası, Balıkesir ili sınırları içerisindedir. Bu yarımadada 2004-2006 yılları arasında etnobotanik bir çalışma yapıldı. Bu araştırmada, yarımadada bulunan 7 köye ait 119 kaynak kişi ile görüşülmüştür. Bitkilerin kullanımı ile ilgili olarak elde edilen bilgiler değerlendirildiğinde, tıbbi (33 familyaya ait 44 takson), gıda 21 familyaya ait 40 takson), boya (4 familyaya ait 4 takson), yakıt (4 familyaya ait 4 takson), süs (5 familyaya ait 5 takson) ve diğer kullanım amaçları (11 familyaya ait 12 takson) olarak sınıflandırılmıştır. Sonuçta, toplam olarak 47 familyaya ait 88 takson etnobotanik özellikleri açısından değerlendirilmiştir.
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    Nutlet micromorphology and its taxonomic and phylogenetic significance in Salvia (Lamiaceae)
    (TAYLOR & FRANCIS LTD, 2020) Celep, Ferhat; Kahraman, Ahmet; Guerin, Greg R.; Karabacak, Ersin; Akaydin, Galip; Dogan, Musa
    Salvia (sage) is a species rich and medicinally important genus. Species-level identification is usually very difficult, particularly in closely related species. Here, we investigated nutlet micromorphological characteristics of 51 taxa belonging to S. subg. Salvia, S. subg. Sclarea and Salvia verticillata clade (S. subg. Heterosphace) by stereo binocular microscopy and scanning electron microscopy to show their taxonomic and phylogenetic value. The present study is the most comprehensive nutlet micromorphological study based on the number of taxa studied in the genus so far. The size of nutlets varies from 1.61 mm (S. verticillata subsp. verticillata) to 8.44 mm (S. albimaculata) in length, 1.02 mm (S. verticillata subsp. verticillata) to 4.20 mm (S. macrochlamys) in width. Nutlet length/width ratio ranges from 1.02 (S. bracteata and S. indica) to 3.06 (S. albimaculata). The basic shape of nutlets is elliptic, widely elliptic, circular, ovate or obovate. Five nutlet sculpturing patterns are present namely colliculate, reticulate, verrucate, rugose and foveate. The variation of surface sculpturing, nutlet shape, size, and exocarp cell shape provide useful diagnostic properties at species and subgenus level. However, nutlet micromorphological characters are of low phylogenetic value in studied Salvia species.
  • Küçük Resim
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    Plant species microendemism, rarity and conservation of pseudo - alpine zone of Kazdagi (Mt. Ida) national park - Turkey
    (Elsevier Science Bv, 2011) Ozturk, Munir; Uysal, Ismet; Karabacak, Ersin; Celik, Sezgin
    Kazdag (Mt. Ida) forms a natural border between the Provinces of Canakkale and Balikesir in the north-western part of Turkey. It was declared as National Park in 1993 because of its rich plant cover, a restricted zone of Abies nordmanniana ssp. equi-trojani forest, natural beauty and mythology. The pseudo-alpine zone consists of 189 specific and infraspecific taxa of vascular plants. A total of 55 endemic taxa (29.10%) were recorded from this area. Out of these 22 (40%) taxa are restricted only to this area, and 5 taxa are non-endemic but rare in Turkey. In this paper, habitat characteristics, conservation strategies and management of these taxa are given. Our investigations revealed that, out of 55 taxa, 12 are critically endangered (CR), 10 endangered (EN), 11 vulnerable (VU), 9 not threatened (NT) and 18 with lower risk (LC). Although Hieracium idae, Dianthus arpadianus var. trojanus, Minuartia garckeana and Paronychia sintenisii are recorded as data deficient (DD) category in IUCN criteria, these taxa are transferred to CR category. (C) 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of The 2nd International Geography Symposium-Mediterranean Environment