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Found: 8 Piece 0.001 sn
Source : Fresenius Environmen ... ✕Department : Biyoloji Bölümü ✕
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EVALUATION OF ALUMINUM STRESS INDUCED ANTIBACTERIAL AND ANTIFUNGAL ACTIVITIES IN ROMAN NETTLE

İbrahim İlker ÖZYİĞİT

In this current work, Roman nettle (Urtica pilulifera L.), a traditional medicinal plant that is very common and widespread species throughout Asia, Europe, and Northern Africa, was used as a model plant to investigate changes in antimicrobial activity following the application of aluminum stress. U pilulifera seedlings were grown in growth-room conditions and 0, 100, and 200 M AlCl3 were applied to the plants together with Hoagland solution (20 ml) for two months. The antimicrobial activities were tested against nine strains of bacteria (Salmonella sp., Staphyllococcus aureus, Escherichia col ...More

Article 2019 Fen Fakültesi Fresenius Environmental Bulletin28 ( 2A ) 63 Views
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ECOPHYSIOLOGICAL PROPERTIES OF TURKISH ENDEMIC CENTAUREA CONSANGUINEA DC

İbrahim İlker ÖZYİĞİT

This physiological and ecological study was performed on Centaurea consanguinea DC. to acquire information about certain characteristics (bioclimatic, edaphic, topographic, biotic etc.) of its habitat and distribution in Turkey, determine the requirements for germination, explore the soil-plant relations and obtain data on certain aspects of its population biology. Plant and co-located soil samples were collected from Amasya and Havza District (Samsun) in Turkey using standard methods. Various analyzes were employed for determining of physical, chemical and biological properties of the plant s ...More

Article 2019 Fen Fakültesi Fresenius Environmental Bulletin28 ( 2A ) 48 Views
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COMPARATIVE ANALYSIS OF MATURE AND PREPROPROTEIN FORM OF THIONINS IN SOME PLANT SPECIES; BIOINFORMATICS APPROACHES

İbrahim İlker ÖZYİĞİT

WOS:000471836900075

Article 2019 Fen Fakültesi Fresenius Environmental Bulletin28 ( 5 ) 86 Views
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Some Heavy Metals and Mineral Nutrients of Narrow Endemic Cirsium Byzantinum Steud., From Istanbul, Turkey: Plant-Soil Interactions

İbrahim İlker ÖZYİĞİT | Gülbübü KURMANBEKOVA

Cirsium species have economic importance because of their botanical and medicinal properties. Thus, this study has aimed to investigate some heavy metal (Fe, Mn and Zn) and mineral nutrient (B, Ca, K, Mg and Na) status of narrow endemic Cirisum byzantinum. Plant and soil element concentrations were analyzed by using ICP-OES and the evaluation of plant-soil interactions for heavy metals and mineral nutrients were carried out by statistical methods. The measured element concentrations (in mg/kg) were in ranges of 5.936-19.044 for B, 1862.161-4811.168 for Ca, 12.610-38.474 or Fe, 3421.383-6881.88 ...More

Article 2018 Fen Fakültesi Fresenius Environmental Bulletin27 ( 2 ) 34 Views
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GENETIC DIVERSITY AND PHYLOGENETIC ANALYSES OF TURKISH RICE VARIETIES REVEALED BY ISSR MARKERS AND CHLOROPLAST trnL-F REGION

İbrahim İlker ÖZYİĞİT

A set of 17 Turkish rice (Oryza sativa L.) varieties (TRVs) were characterized using inter simple sequence repeat (ISSR) markers to study genetic diversity. Also, the sequences of trnL((UAA))-F-(GAA) intergenic spacer (IGS) regions were used to evaluate the phylogenetic relationships of TRVs. According to ISSR data, the observed number of alleles (Na), effective number of alleles (Ne), Nei

Article 2018 Fen Fakültesi Fresenius Environmental Bulletin27 ( 12 ) 126 Views
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PHENOLIC CONTENT AND BIOLOGICAL ACTIVITIES OF TRAMETES HIRSUTA

Ali ASLAN

Natural mushrooms are one of the important elements of the ecosystem. It has been preferred by people from past to present because of its nutritional and medicinal potentials. In this study, antioxidant, oxidant and antimicrobial potential of Trametes hirsuta (Wulfen) Lloyd has been determined. In addition, phenolic compounds in its fruiting body have been scanned. The antioxidant and oxidant potential was determined using Rel Assay kits. Antimicrobial potential was determined using the agar dilution method. Phenolic contents were scanned on the HPLC device. As a result of the studies, the pre ...More

Article 2021 Fen Fakültesi Fresenius Environmental Bulletin30 ( 4A ) 154 Views
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INVESTIGATION OF POWDERY MILDEW DISEASE IN VARIOUS OAK (QUERCUS) TREES; A CASE STUDY FROM ISTANBUL/TURKEY

İbrahim İlker ÖZYİĞİT

Oak tree, with its different varieties, grows in almost all regions of Turkey. It is one of the wood materials valued for its timber. This noble tree is affected by powdery mildew (PM) disease, especially at its young ages. PM is a fungal disease infecting wide range of plant species as well as oak trees. It is quite harmful to nurseries, groves and coppice forests, and it reduces the quality and quantity of by-products. In this study, PM disease, its formation and spread conditions were investigated in various oak species populated in six different districts of Istanbul. Field observations, d ...More

Article 2020 Fen Fakültesi Fresenius Environmental Bulletin29 ( 7 ) 108 Views
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DETERMINING ELEMENT ACCUMULATIONS IN TURKISH RED PINE USED AS A BIOINDICATOR FOR ESTIMATING OF EXISTING POLLUTION ON BOTH SIDES OF BOSPHORUS IN ISTANBUL

İbrahim İlker ÖZYİĞİT

Evergreen Turkish red pine tree shows wide distribution around Aegean and Mediterranean regions in Turkey. Herein work investigated the mineral nutrient status of Turkish red pine as a bioindicator for revealing the impact of existing pollution on both sides of Bosphorus in Istanbul. For this, Al, B, Ca, Cu, Fe, K, Mg, Na and Zn concentrations were determined in unwashed and washed leaves and barks of the plant and soil samples. The standard procedures were applied and the determinations of element concentrations in all samples were done using ICP-OES. The sample collections were performed at ...More

Article 2020 Fen Fakültesi Fresenius Environmental Bulletin29 ( 7 ) 96 Views
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