Filters
GENETIC DIVERSITY AND PHYLOGENETIC ANALYSES OF TURKISH RICE VARIETIES REVEALED BY ISSR MARKERS AND CHLOROPLAST trnL-F REGION

İbrahim İlker ÖZYİĞİT

Article | 2018 | Fresenius Environmental Bulletin27 ( 12 )

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

DETERMINATION OF NUT PROPERTIES AND CHEMICAL COMPOSITIONS OF WALNUT (JUGLANS REGIA L.) GENOTYPES GROWN IN WALNUT-FRUIT FORESTS OF KYRGYZSTAN

Ali Osman SOLAK | Kalıypa SALİYEVA | İbrahim İlker ÖZYİĞİT | Bakıt BORKOYEV

Article | 2020 | Fresenius Environmental Bulletin29 ( 4A )

In this study, sixteen genotypes selected from walnut-fruit forests in the Osh and Jalal-Abad regions of Kyrgyzstan evaluated for nut properties and chemical composition. The nut traits such as nut dimension, nut and kernel weight, kernel ratio, and shell thickness were investigated. The ash, protein, oil, carbohydrate content and fatty acid composition of genotypes were also evaluated. The ranges of average nut characteristics determined for the selected genotypes were: 27.4-32.1 mm nut length; 23.8-28.6 mm nut width; 24.1-29.0 mm nut suture; 7.15-13.17 g nut weight; 3.26-5.65 g kernel weight; 35.02-46.15% kernel percentage and 1.1 . . .3-2.23 mm shell thickness. The oil content of the genotypes ranged from 55.47 to 65.26%, the protein content ranged from 16.59 to 19.97%, and the carbohydrate content was between 14.02% and 22.85%. The ash content ranged from 1.67 to 2.23%, and the moisture content of the kernels was between 2.06 and 2,58%. The oleic acid content of the oils ranged from 18.62 to 32.19%. The linoleic acid content ranged from 46.13 to 62.25%, while linolenic acid content ranged from 6.67 to 13.05%. The palmitic acid content was between 4.98 and 7.67%. Sary-Chelek 1, Arslanbap 3, Arslanbap 4 and Kara-Alma 3 genotypes were identified as the promising genotypes according to nut characteristics and chemical composition More less

DETERMINATION OF THE NATURAL ENEMIES AND POPULATION FLUCTUATION OF Tuta absoluta (MEYRICK, 1917) (LEPIDOPTERA:GELECHIIDAE) IN HIGHLAND GREENHOUSES IN ANTALYA, TURKEY

Hüseyin GÖÇMEN

Article | 2022 | Fresenius Environmental Bulletin31 ( 6 )

Tomato leafminer Tuta absoluta (Meyrick) is one of the most important pests that cause yield and quality loss in tomato cultivation in greenhouse and open field. 7'. absoluta, has spread rapidly in tomato production areas after emerging to Turkey in 2009. The pest is widely found along growing season in greenhouses and open fields in the coastal part of Antalya, where suitable climatic conditions are present. However, the population status of T. absoluta in tomato cultivation in greenhouses under high altitude highland conditions is not known and the study has been handled for this purpose. this study were conducted in 2018-2019 in . . .Elmali and Korkuteli districts of Antalya province. In the study the population density of immature stage of T. absoluta were determined by leaf sampling and adult population density were determined by using pheromone traps for two years at four different locations. In addition, the natural enemies of the pest were also determined. As a result of the study, the pest was found widespread throughout the season in tomato greenhouses under highland conditions. Bracon concolorans Marshall, 1900, (Hymenoptera:Braconidae) Bracon variegator Spinola, 1808 (Hymenoptera:Braconidae) and Nesidiocoris tenuis (Reuter, 1895) (Hemiptera:Miridae) have been identified as natural enemies. As for parasitoid of T. absoluta, B. variegator was determined as the first time in Turkey with present study More less

INVESTIGATION OF POWDERY MILDEW DISEASE IN VARIOUS OAK (QUERCUS) TREES; A CASE STUDY FROM ISTANBUL/TURKEY

İbrahim İlker ÖZYİĞİT

Article | 2020 | Fresenius Environmental Bulletin29 ( 7 )

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, diagnostic and laboratory studies reveale . . .d that oak species type, its neighboring communities, population density, topographical features of the area, operating mode, and climatic conditions such as temperature, relative humidity, wind and airing have determinative affects in PM disease development and dispersal. Thus, findings of this study will become valuable source for further physiological and molecular studies, as well as they will give insight to authorities in terms of protection of oak species from this damaging disease More less

EVALUATION OF ALUMINUM STRESS INDUCED ANTIBACTERIAL AND ANTIFUNGAL ACTIVITIES IN ROMAN NETTLE

İbrahim İlker ÖZYİĞİT

Article | 2019 | Fresenius Environmental Bulletin28 ( 2A )

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 coli, E. coli O157:H7 and Bacillus cereus) . . .and fungus (Penicillum sp., Saccharomyces cerevisiae, Candida tropicans and C. albicans) by using the disc diffusion and agar well methods. The accumulated Al was measured by using ICP-OES in the leaves of studied plant samples. Additionally, a control group (water 11.31 mg l(-1) Al) was prepared and applied to selected bacteria and fungi in order to understand the reason for obtained antimicrobial activities of Roman nettle is whether because of the compounds isolated from nettle leaves exposed to Al stress, or Al itself accumulated in leaves. The data proved that inhibitory antimicrobial effects were altered in U pilulifera upon the application of Al stress, especially on fungi species More less

ECOPHYSIOLOGICAL PROPERTIES OF TURKISH ENDEMIC CENTAUREA CONSANGUINEA DC

İbrahim İlker ÖZYİĞİT

Article | 2019 | Fresenius Environmental Bulletin28 ( 2A )

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 species and its co-located soils includin . . .g pH, total protein and electrical conductivity (EC), soil texture, contents of mineral nutrition and other physical and chemical parameters and the results were presented. Nutrient amounts (in ?were found to be in the ranges of 0.01-0.007 for N, 0.0008-0.001 for P, 0.01-0.09 for K, 0.0002-0.0003 for Na in the soils and 2.25 for N, 0.0068 for P, 0.07 for K and 0.02 for Na in the plant, respectively. Also, it was observed that germination ratios of the seeds were depended on various factors More less

Some Heavy Metals and Mineral Nutrients of Narrow Endemic Cirsium Byzantinum Steud., From Istanbul, Turkey: Plant-Soil Interactions

İbrahim İlker ÖZYİĞİT | Gülbübü KURMANBEKOVA

Article | 2018 | Fresenius Environmental Bulletin27 ( 2 )

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, 3421.383-6881.885 for K, 190.984-593.427 for Mg, 3.830-1 . . .7.301 for Mn, 21.236-62.025 for Na, and 6.183-28.060 for Zn in plant parts. Statistical analysis for element interactions between root/leaf and co-located soil samples revealed that there a was positive correlation between B, Ca, Fe, K, Mg, Mn, Na and Zn found in soil and Na and Zn found in roots, and Fe, Mn and Na found in leaves, respectively. Herein, results of this study could provide preliminary knowledge for future studies to better understand element uptake and heavy metal accumulation status of endemic species. Also, this study could also provide some insights for responsible authorities to develop conservation strategies More less

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

Article | 2020 | Fresenius Environmental Bulletin29 ( 7 )

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 five different locations in Istanbul, 4 . . .from the Bosphorus region and one from Prince Island (as control). The highest element concentrations (in mg kg(-1) DW) in plant parts were recorded between 109.10 /- 1.68 and 120.58 /- 1.75 for Al, 10.18 /- 0.14 and 12.52 /- 0.17 for B, 8765.42 /- 92.41 and 9600.69 /- 102.22 for Ca, 10.91 /- 0.13 and 11.73 /- 0.16 for Cu, 226.85 /- 3.01 and 254.07 /- 3.20 for Fe, 4050.69 /- 48.51 and 4477.08 /- 52.34 for K, 794.58 /- 9.82 and 878.33 /- 10.07 for Mg, 1255.14 /- 14.67 and 1374.31 /- 18.55 for Na and 34.92 /- 0.49 and 37.25 /- 0.57 for Zn while the highest element concentrations (in mg kg(-1) DW) in co-located soil samples were measured between 5470.42 /- 66.48 and 6046.25 /- 73.54 for Al, 14.86 /- 0.20 and 16.43 /- 0.29 for B, 4600.56 /- 55.22 and 4984.86 /- 62.71 for Ca, 22.33 /- 0.36 and 25.07 /- 0.48 for Cu, 5500.01 /- 71.05 and 5953.06 /- 80.16 for Fe, 1819.44 /- 23.51 and 2029.17 /- 27.04 for K, 4108.75 /- 50.77 and 4714.17 /- 58.09 for Mg, 111.11 /- 1.82 and 122.08 /- 2.45 for Na and 117.10 /- 2.33 and 126.86 /- 2.61 for Zn More less

A Research on the Determination of Molecular Genetic Characteristics of Some Bemisia Tabaci (genn.) (hemiptera:aleyrodidae) Populations

Hüseyin GÖÇMEN

Article | 2018 | Fresenius Environmental Bulletin27 ( 2 )

The whitefly Bemisia tabaci (Gennadius) (Hemiptera, Aleyrodidae) is one of the most crucial agricultural pests in tropical and subtropical regions. The pest is a species complex which contain morphologically indistinguishable biotypes or genetic groups. The aim of the present study is to examine B. tabaci populations collected from Aydin, Antalya, Mersin, Adana and Hatay regions in 2004 and 2005. Prior to analysis, as the first step, the biotypes were determined by considering molecular differences among populations. In addition, the differences among populations were determined by means of biochemical analysis, namely, by conductin . . .g esterase enzyme analysis. Nucleotide variation in mitochondrial cytochrome oxidase I (mtCOI) showed that a total of 32 nucleotide variations were present in 617 basepair sequence of mtCOI. Dendogram constructed based on phylogenetic analysis indicated that B. tabaci populations consisted of B and Q biotypes. Furthermore, the findings revealed that there were no nucleotid differences within B and Q biotype populations. In terms of the spread of the biotypes, it is found that while B biotypes were settled in Dortyol and Harbiye regions in Hatay province, Q biotypes were found in Kirikhan and Hassa regions. Likewise, while B biotypes were found in Tarsus, Q biotypes were seen in Ceyhan and Havutlu in cukurova region (Mersin and Adana provinces). In Antalya province, Q biotype was found in Campus area, whereas B biotype was present in Gazipasa. On the other hand, it is found that all samples from Aydin province were biotype Q. Concerning the findings, it can be claimed that Polyacrylamide gel electrophoresis results clearly distinguished the two genetic types More less

PHENOLIC CONTENT AND BIOLOGICAL ACTIVITIES OF TRAMETES HIRSUTA

Ali ASLAN

Article | 2021 | Fresenius Environmental Bulletin30 ( 4A )

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 presence of different levels of Gallic acid . . ., Catechin, 4-Hydroxybenzoic acid and Epicatechin were observed in T. hirsuta. TAS value of T hirsuta was determined 3.466 /- 0.148 mmol/L, TOS value was 13.482 /- 0.234 mu mol/L and OSI value was 0.390 /- 0.018. Antimicrobial activity of T. hirsuta was found to be effective at 100, 200 and 400 mu g/mL concentrations. As a result of the studies, it has been determined that T hirsuta has antioxidant and antimicrobial potential More less

DETECTION OF THE AIRBORNE MICROBIOLOGICAL CONTAMINATION IN DOMESTIC REFRIGERATORS IN A STUDENT RESIDENTIAL AREA OF KONYA-TURKEY

Ümit GÜRBÜZ

Article | 2019 | Fresenius Environmental Bulletin28 ( 6 )

This study aimed to determine the general hygiene status of different residential groups including the student and working residential areas, near the campus of Selcuk University in Konya -Turkey. The student residential group consisted of male (n=27) and female (n=19) students, and another group was of family residents (n=32). Temperature measurement and microbiological analyses using an active air sampler to detect airborne contamination including total viable count (TVC), total psychrotrophic count (TPC), yeast and mold, Pseudomonas spp., and coliform bacteria count (CC) in refrigerators were performed. Temperature measurements s . . .howed that 88.7 % of 78 samples had a temperature of higher than 5 C. The temperature of refrigerators of male students was higher than that of families and female students (p < 0.05). TVC was lower in the family refrigerators than those of male and female students (p < 0.05). Six (7.69 %) and 20 (25.64 %) of the domestic refrigerators were found to be contaminated with Pseudomonas spp. and CCs. Yeast and molds and CCs were lower in family refrigerators than in those of male students (p < 0.05). Airborne contamination was maximum in the refrigerators of male students for all the microbiological counts More less

Our obligations and policy regarding cookies are subject to the TR Law on the Protection of Personal Data No. 6698.
OK

creativecommons
Bu site altında yer alan tüm kaynaklar Creative Commons Alıntı-GayriTicari-Türetilemez 4.0 Uluslararası Lisansı ile lisanslanmıştır.
Platforms