Cilt:29 Sayı:01 (2020)
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Browsing Cilt:29 Sayı:01 (2020) by Author "Other"
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Item Antımutagenıc and antıoxıdant actıvıtıes of teucrıum multıcaule and ıts cytotoxıc effect on murıne lr7 cell(Ankara Üniversitesi Fen Fakültesi, 2020) Pehlivan, Mustafa; Other; OtherIn present study, DNA protection, antioxidant and cytotoxic effects of Teucrium multicaule Montbret Et Aucher Ex Bentham methanol extract (TME) was investigated. Cytotoxic effects and antioxidant activities of TME was determined by MTT and DPPH scavenging and DNA protection methods. As a result, high dose of TME exhibited a cytotoxic effect on murine L cells. Although, TME also showed a strong antimutagenic activity in DNA protection test system, it exhibited modest activity in DPPH test system. Consequently, it may be used as natural agent for antioxidant and antimutagenic properties.Item Classıfıcatıon of turkısh honeys from aydın-karacasu-dıkmen vıllage based on melıssopalynologıcal parameters(Ankara Üniversitesi Fen Fakültesi, 2020) Çelemli, Ömür Gençay; Other; OtherThe classification of Aydın-Karacasu-Dikmen honeys was practiced based on melissopalynological parameters. A total of 65 honey samples from Aydın-Karacasu-Dikmen village located in Aegean Region of Turkey were collected during the 2018-2019 harvesting season. According to the melissopalynological results, 54 samples were determined as nectar (blossom), seven as honeydew honey and four as mix of nectar and honeydew honey (blend honey). In all the honey samples Thymus spp. pollens were observed. Also sensory analysis were done for the investigated honey samples. As a result, owing to Thymus spp. pollen contents in all the samples the aroma and the odour of Thymus were detected by sensory analyses. The honey types of the region were determined according to the botanical sources exhibited by the research.Item Determınatıon of fusarıum specıes in carnatıon greenhouses in Antalya, Turkey(Ankara Üniversitesi Fen Fakültesi, 2020) Atakan, Aydın; Other; OtherIn this study, revealing of the identification and pathogenicity of Fusarium species isolated in carnation greenhouses of Antalya, Turkey were aimed. As a result of isolations, fungi included in Fusarium genus were identified using macroscopic and microscopic techniques. Pathogenicity of identified species were determined using Turbo carnation cutivar. As a result of the diagnostic studies, species belonging to the genus Fusarium were determined as F. acutatum, F. avenaceum, F. chlamydosporum, F. equiseti, F. oxysporum, F. poae, F. proliferatum, F. sambucinum, F. solani, F. tricinctum and F. verticillioides. F. oxysporum is the most commonly isolated species According to the pathogenicity test in Turbo carnation variety, the disease severity of Fusarium species were changed between 60-88 % and determined that F. solani had the highest pathogenicity rates among the others. Consequently, a total of 11 Fusarium species have been identified and has been demonstrated that have potential to cause problem in carnation cultivation in greenhouses in Antalya, Turkey.Item Effects of β-estradıol on dna methylatıon changes and genomıc stabılıty ın trıtıcum aestıvum l. exposed salt(Ankara Üniversitesi Fen Fakültesi, 2020) Aydın, Murat; Other; OtherSalinity stress is considered one of the most important agricultural problems because it causes yield loss. Although it is well known that salinity damages to DNA and results in DNA methylation changes in plants, there is no report investigating the effect of mammalian hormones in plants growing under salinity stress. Therefore, the present study wasa imed at investigating DNA damage levels, DNA stability and DNA methylation changes in Triticum aestivum subjected to salinity stress and determine whether β-estradiol has any effect on these changes. RAPD (Randomly Amplified Polymorphic DNA) and CRED-RA (Coupled Restriction Enzyme Digestion-Random Amplification) were used to define the DNA damage levels and changes in the pattern of DNA methylation. The results showed that salinity stress led to an increase in RAPDs profile changes (DNA damage), a reduction in genomic template stability (GTS) and DNA hypermethylation. The effects caused by salinity stress were decreased after treatment with different concentrations of β-estradiol. The results of this study clearly show that β-estradiol could be used effectively to protect wheat seedlings from the destructive effects of salinity stress, and demethylation positively contributed to salinity stress tolerance.Item Ennomınae, geometrınae and larentıınae (lepıdoptera: geometrıdae) fauna ın Gazıantep provınce, Turkey(Ankara Üniversitesi Fen Fakültesi, 2020) Kütük, Murat; Other; OtherThis study was based on Geometridae species collected from Gaziantep province in spring and summer of 2009, 2010 and 2011. During the study, samples were collected from research area using by Robinson type light trap, portable light trap and insect net. In the study, 14 species belonging to 14 genera from 3 subfamilies have been determined. In addition, adult figures all species were given.Item Flora of Çaltepe and Çeletepe (Bolu)(Ankara Üniversitesi Fen Fakültesi, 2020) AYDIN, Çelik; Eker, İsmail; Other; OtherThis study was carried out to reveal the vascular plant diversity of Çaltepe and Çeletepe. During 2015−2018, 2340 plant specimens were collected from the research area and 363 genera and 767 taxa belonging to 81 families were determined. Of all the collected taxa, 66 are endemic and endemism rate is %8.60. The IUCN threat categories of endemic and rare plants at global level are as follows: 1 taxon in “CR” category, as well as 4 taxa “EN”, 4 taxa “VU”, 9 taxa “NT”, and 45 taxa “LC”. Also, 3 rare taxa are found in the “VU” category, as well as 1 rare taxon in the “DD” category at regional level. 56 taxa are new records for the province of Bolu. The largest families in the study area are as follows: Asteraceae 97 taxa (%12.65), Fabaceae 62 taxa (%8.08), Lamiaceae 51 taxa (%6.65), Rosaceae 44 taxa (%5.74), Poaceae 37 taxa (%4.82), Brassicaceae 35 taxa (%4.56), Caryophyllaceae 32 taxa (%4.17), Apiaceae 28 taxa (%3.65), Boraginaceae 27 taxa (%3.52) and Orchidaceae 24 taxa (%3.13). The distribution of taxa into phytogeographic regions are as follows: 234 taxa (%30.50) Euro-Siberian, 64 taxa (%8.34) Mediterranean, 46 taxa (%5.99) Irano-Turanian, and 423 taxa (%55.15) multiregional and/or unknown. Geranium and Silene (12 taxa) are the most common genera in the research area. These genera are followed by Salvia (11 taxa), Trifolium, Veronica and Campanula (each with 10 taxa), Ranunculus, Euphorbia and Vicia (each with 8 taxa), and Poa (7 taxa).Item Karyotype analysıs of nannospalax xanthodon (spalacıdae, rodentıa) at the easternmost part of ıts dıstrıbutıon range(Ankara Üniversitesi Fen Fakültesi, 2020) Matur, Ferhat; Other; OtherChromosomal differentiation can play a crucial role in speciation. In order to reveal a complete picture of the speciation process within a taxon, it is important to determine the geographic distribution of all its chromosomal forms. The blind mole rats (subfamily Spalacinae) are one of the best models for studying chromosomal speciation due to extremely rich chromosomal variation across their large geographic distribution range. To fill the gap in our knowledge of the distribution of chromosomal races of small-bodied blind mole rats (Nannospalax sp.), we collected individuals from the region of Javakheti, Georgia – one of the easternmost localities known for N. xanthodon. We determined that this population has 9 meta- or submetacentric and 15 acrocentric chromosomes (2n=50, NFa=66, NF= 70). The same chromosomal formula is known for the blind mole rats from the nearby Erzurum-Kars plateau in Turkey. We compare our results with the other chromosomal races with the same diploid number 2n=50 found in Anatolia and Eastern Europe.