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Browsing by Author "Minareci, E"

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DETERMINATION OF HEAVY METALS IN FISH, WATER AND SEDIMENTS OF AVSAR DAM LAKE IN TURKEY
Öztürk, M; Özözen, G; Minareci, O; Minareci, E
In the present study, some heavy metals (Cd, Cr, Cu, Fe, Ni and Pb) were seasonally determined in water, sediment and some tissues of Cyprinus carpio from Avsar Dam Lake, which is an important water source for irrigation and drinking in Turkey. Heavy metal levels in water, sediment and fish samples were analyzed by inductively coupled plasma spectroscopy (ICP/AES). The obtained results showed that the average values of Fe in water samples were higher than the respective reference values for fresh water. Results for levels in water were compared with national and international water quality guidelines, as well as literature data reported for the lakes. The analysis of heavy metals in sediments indicated that among the six heavy metals tested, Fe was maximally accumulated, followed by Ni, Cu, Cr, Pb and Cd. Heavy metal concentrations were found to decrease in sequence of the Cyprinus carpio samples, in the muscle and stomach-intestine as Fe > Cu > Pb > Ni > Cr > Cd; in the gill, heart and liver as Fe > Cu > Ni > Pb > Cr > Cd and in the air sac as Fe > Cu > Ni > Pb > Cd > Cr. In the fish samples, cadmium, chromium, nickel and lead concentrations exceeded the tolerable values provided by international institutions.
A palynological study of the genus Smyrnium (Umbelliferae) from Turkey
Mungan, F; Yildiz, K; Minareci, E; Kiliç, M
In this study, the pollen morphology and exine structure of six taxa of the genus Smyrnium L. (Umbelliferae) were investigated using light microscopy and scanning electron microscopy (SEM). Eight micromorphological characters (pollen shape, apocolpium, mesocolpium, polar length, equatorial width, exine thickness, colpus length and colpus width) of pollen grains of Smyrnium have been identified. The palynological observations revealed that pollen grains of all studied taxa of Smyrnium were prolate in shape and posses tricolporate aperture. Tectal surface sculpture was not a good criterion to identify particular taxa from Smyrnium. The pollen of which is characterized by rugulate, the pollen ornamentation was similar in all studied taxa. In addition the taxa could be included in sub-rectangular pollen type as classified by Cerceau - Larrival.
Antimicrobial Activity of Five Endemic Asperula Species from Turkey
Kalyoncu, F; Minareci, E; Minareci, O
In this study, methanol and ether extracts of five endemic Asperula species (Rubiaceae) from Turkey (A. antalyensis, A. brevifolia, A. pseudochlorantha, A. purpurea subsp. apiculata and A. serotina), used in the traditional system of medicine, were tested for antimicrobial activity by the agar well diffusion method and the broth dilution method. The most active species were Asperula brevifolia and A. serotina which showed broad-spectrum antimicrobial activity against Gram-positive and Gram-negative bacteria and maximum inhibition was shown by methanol extract of A. antalyensis against Candida albicans as 32 mm. Methanol extracts of Asperula species were among the most active with the MIC values ranging from 7.6 to 14.8 mg/mL.
Proximate composition, antimicrobial and antioxidant activities of six wild edible celeries (Smyrnium L.)
Minareci, E; Ergönül, B; Kalyoncu, F
In this study, proximate composition, antimicrobial and antioxidant activities of six Smyrnium taxa, including, Smyrnium olusatrum, Smyrnium perfoliatum, Smyrnium rotundifolium, Smyrnium cordifolium, Smyrnium connatum and Smyrnium creticum (Umbelliferae) were determined. Antioxidant properties of methanol extracts were studied by 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging method. Among all the Smyrnium taxa, S. olusatrum showed the most potent radical scavenging activities. Antimicrobial activities of these taxa were studied using agar well diffusion method and S. perfoliatum showed broad-spectrum antibacterial activity with inhibition zones ranging from 13 to 25 mm.
Ecological quality status of the Turkish coastal waters by using marine macrophytes (macroalgae and angiosperms)
Taskin, E; Tan, I; Minareci, E; Minareci, O; Çakir, M; Polat-Beken, Ç
Marine macrophytes (macroalgae and angiosperms) were defined as one of the biological quality elements to assess the ecological quality status of transitional and coastal waters by the European Water Framework Directive (WFD, 2000/60/EC). In the present study, the Ecological Evaluation Index (EEI-c) was tested to assess the anthropogenic impact by using marine benthic macrophytes (macroalgae and angiosperms) and pressures by using MA-LUSI in the Turkish marine waters. Macrophyte samples were collected from 56 stations on the coasts of Turkey (at 17 Black Sea, 15 Marmara Sea, 13 Aegean Sea and 11 Mediterranean coastal water bodies) in the summer period between 2014 and 2016. In total, 209 marine macrophytes (macroalgae and angiosperms) taxa were found in all stations. The study revealed high ecological status class for 15 sites, good for 21 sites, moderate for 6 sites, poor for 10 sites, and bad for 4 sites. The MA-LUSI index was tested from the Corine land cover map which affects 1.5 km buffer zone around the sampling sites. The relationship between the pressure index MA-LUSI and EEI-ceqr (eqr: ecological quality ratio) was also tested, and a negative linear relationship was found between MA-LUSI and EEI-ceqr in the Turkish sites. The present study supports the use of the EEI-c index for ecological quality state classification in a wide area of Turkish coastal waters.
PHYSICOCHEMICAL PARAMETERS OF SEA WATER AT TURKEY COASTS
Minareci, O; Taskin, E; Minareci, E
In this study, it is aimed to determine some physico-chemical parameters on the Turkey coasts. pH, temperature, salinity, dissolved oxygen, turbidity, conductivity, phosphate and ammonium nitrogen parameters were determined. The sampling were carried out from 56 points (17 The Black Sea, 15 The Marmara Sea, 13 The Aegean Sea and 11 The Mediterranean), once a year, during the summer-fall period, between 2014-2016. In the Black Sea, mean pH 8.25, temperature 26.53 degrees C, salinity 16.84 parts per thousand, dissolved oxygen 5.45 mg/L, turbidity 2.77 mg/L, conductivity 26574 mu S/cm, phosphate 10.87 mu g/L and ammonium nitrogen 0.046 mg/L; in the Marmara Sea, mean pH 8.18, temperature 25.56 degrees C, salinity 22.27 parts per thousand, dissolved oxygen 5.56 mg/L, turbidity 1.15 mg/L, conductivity 34977 mu S/cm, phosphate 11.14 mu g/L and ammonium nitrogen 0.112 mg/L; in the Aegean Sea, mean pH 8.01, temperature 26.87 degrees C, salinity 35.69 parts per thousand, dissolved oxygen 5.40 mg/L, turbidity 2.08 mg/L, conductivity 53867 mu S/cm, phosphate 9.72 mu g/L and ammonium nitrogen 0.023 mg/L; in the Mediterranean, mean pH 7.87, temperature 28.58 degrees C, salinity 36.01 parts per thousand, dissolved oxygen 4.61 mg/L, turbidity 0.55 mg/L, conductivity 54259 mu S/cm, phosphate 7.90 mu g/L and ammonium nitrogen 0.024 mg/L were found.
Karyotype characterization of Turkish taxa of the genus Asperula L. - section Thlipthisa (Rubiaceae)
Minareci, E; Yildiz, K
Karyotype studies were performed in five taxas of Asperula viz., Asperula brevifolia, A. pseudochlorantha var. pseudochlorantha, A. pseudochlorantha var. antalyensis, A. serotina and A. purpurea subsp. apiculata from the section Thlipthisa, and their diploid (2n), and the basic (x) chromosome numbers were determined as 2n=22 and x=11, respectively. Chromosome length varied from 0.80 gm (A. serotina) to 2.40 mu m (A. brevifolia). Chromosomes are principally metacentric except for A serotina, which has submetacentric chromosomes. A. serotina showed the highest intrachromosomal assymetry coefficient (A(1)) index and A. pseudochlorantha var. antalyensis represented the highest interchromosomal asymmetry coefficient (A(2)). The chromosome numbers of A. brevifolia, A. serotina and A. purpurea subsp. apiculata were reported for the first time.
A taxonomic study of the Silene sections Behenantha and Dichotomae (Caryophyllaceae) in Turkey based on the micromorphology of their seed and pollen
Kuh, M; Yildiz, K; Minareci, E
The seed and pollen grain micromorphologies of 10 taxa of the Silene sections Behenantha and Dichotomae (Caryophyllaceae) were analyzed in this study. Although the seeds of the analyzed taxa were generally reniform, S. tenuiflora and S. koycegizensis from the section Behenantha were clearly distinct from other taxa, while subspecies of S. dichotoma and S. euxina in the section Dichotomae showed differences. Pollen grains are periporate and spheroidal and ornamentation is generally spinulate-microperforate in all taxa. However, ornamentation is spinulate in S. euxina and semireticulate in S. koycegizensis. While the exine structure is generally tectate, it is semitectate in S. koycegizensis. It was found that S. heldreichii and S. cariensis subsp. muglae had the highest number of pores, while S. dichotoma subsp. racemosa had the lowest number of pores. The results showed that S. euxina can be distinguished from S. dichotoma based on morphological characteristics of their pollen grains and seeds.
DETERMINATION OF SOME HEAVY METAL CONCENTRATIONS IN WATER AND SEDIMENT SAMPLES TAKEN FROM GEDIZ RIVER (TURKEY)
Minareci, O; Ozturk, M; Minareci, E
In this study, heavy metal concentrations of Gediz River were determined between July 2001 and April 2002. Cu, Fe, Mn, Zn, Cd, Co, Cr, Ni and Pb content of water and sediment samples were investigated. The values obtained in this study were compared with permitted maximum heavy metal concentrations for irrigation. All metal concentrations found were low (Cu 0.10, Fe 0.28, Mn 0.19, Zn 1.32, Cd 0.004, Co 0.006, Ni 0.12, Pb 0.22 mg L-1) but chromium (0.12 mg L-1) was at limit concentration at some stations. According to these results, the water is acceptable for irrigation. Furthermore, water sample results were compared with inorganic pollution limit amounts announced by the Water Pollution Control Regulation. It is obvious that the water pollution at Gediz River reached levels threatening public health, because of the high chromium (0.12 mg L-1) and lead (0.22 mg L-1) levels.
Dinoflagellate cyst assemblages in the surface sediments from Izmir bay, Aegean sea, Eastern Mediterranean
Uzar, S; Aydin, H; Minareci, E
The present study was conducted on dinoflagellate cyst assemblages from Izmir Bay, Aegean Sea subject to high human impact. Sediment cores were taken from twelve stations. Twenty-eight dinoflagellate cyst types, representing nine genera, were identified. The most common cysts were those of Lingulodinium machaerophorum, Polykrikos kofoidii, Quinquecuspis concreta and Dubridinium caperatum. Potentially toxic species were widely distributed in the study area. This finding is also important to know the seed-bank areas in the Bay of Izmir.
A karyotypic study on Silene, section Siphonomorpha species of Turkey
Yildiz, K; Minareci, E; Cirpici, A; Dadandi, MY
Karyology of the eight taxa of Silene sect. Siphonomorpha known from Turkey was investigated. Diploid chromosome numbers and the basic chromosome number of the studied taxa were obtained as 2n=24 and x=12, respectively. A karyotype analysis of the studied taxa was carried out and the chromosome numbers of S. splendens, S. amana and S. phrygia were determined for the first time. The smallest chromosomes were observed in S. fruticosa and the largest in S. italica subsp. italica. Silene splendens showed the highest A(1) index, whereas S. amana had the highest interchromosomal asymmetry coefficient (A(2)). The karyologic results of the study and the analysis of chromosomal morphology of each taxon is presented.
Pollen morphology of sections Siphonomorpha and Lasiostemones of the genus Silene from Turkey
Yildiz, K; Dadandi, MY; Minareci, E; Çirpici, A
The pollen morphology of 16 taxa belonging to the sections Siphonomorpha Otth and Lasiostemones Boiss. from the genus Silene L. (Caryophyllaceae) was examined via scanning electron microscopy (SEM). Pollen types among all of the examined taxa were spheroidal, ornamentations were generally microechinate-microperforate (punctate), but perforate in Silene viridiflora L., structures were mostly tectate but were observed to be semitectate only in S. viridiflora, the highest pore numbers were found in S. fruticosa L. and S. viridiflora, the lowest pore numbers were those of S. gigantea L. subsp. rhodopea (Janka) Greuter and S. marschallii C.A.Mey., and interpore distance was greatest in S. gigantea subsp. rhodopea and smallest in S. amana Boiss. The widest perforation was observed in S. Viridiflora, whereas the lowest value was observed in S. olympica Boiss. As a result of these detailed examinations, some Silene species with significant taxonomic problems were reviewed in terms of palynology, and suggestions are provided about their positions. S. viridiflora was determined to be the taxon with the most different pollen morphology according to general characters. According to pore number and perforation, the most advanced taxon was S. Viridiflora, while the most primitive taxa were found to be S. olympica, S. gigantea subsp. rhodopea, and S. olympica.
CHEMICAL COMPOSITIONS AND ANTIOXIDANT ACTIVITIES OF FIVE ENDEMIC ASPERULA TAXA
Minareci, E; Ergönül, B; Kayalar, H; Kalyoncu, F
In this study, the proximate chemical composition, total flavonoid and a-tocopherol amounts and antioxidant activities of five endemic Asperula taxa (Rubiaceae) (A. brevifolia, A. pseudochlorantha var. antalyensis, A. pseudochlorantha var. pseudochlorantha, A. purpurea subsp. apiculata and A. serotina) were determined. Antioxidant properties of methanol extracts were studied by the 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging method. Among the all Asperula extracts A. brevifolia showed the most potent radical scavenging activities.
A karyotypic study on Silene sect. Sclerocalycinae in Turkey
Yildiz, K; Minareci, E; Çirpici, A
The karyology of fifteen taxa of Silene sect. Sclerocalycinae from Turkey has been investigated. Karyotype analyses has been carried out and the chromosome number of Silene caramanica, S. peduncularis, S. armena, S. laxa, S. swertiifolia, S. caesarea, S. sclerophylla, S. haradjianii and S. lycaonica have been determined for the first time. For all the taxa studied, the diploid chromosome number and the basic chromosome number were found to be 2n=24 and x=12, respectively. Except for S. chlorifolia and S. doganii, the karyomorphology of the taxa studied is here described for the first time. S. laxa was found to have the smallest chromosomes whereas the largest ones were observed in S. haradjianii. Silene chlorifolia had the highest A(1) index and S. bupleuroides subsp. bupleuroides had the highest interchromosomal asymmetry coefficient (A(2)).
Comparative morphological and palynological study on poorly known Asperula serotina and its closest relative A. purpurea subsp apiculata
Minareci, E; Yildiz, K; Cirpici, A
Morphological and palynological features were examined in the closely related Turkish endemic taxa Asperula serotina and A. purpurea subsp. apiculata. Their morphological features showed very minor difference such as internodes length and the vein thickness of leaf, however, the seed and pollen characteristics clearly appear to have taxonomic value. The clavate-reticulate seed surface suture of A. serotina clearly differs from that lineate-sulcate of A. purpurea subsp. apiculata. Similarly, the pollen perforations and number of spines differ in each taxon. Moreover, the two taxa are geographically isolated from each other. Ecological features are also briefly discussed. The seed and pollen micromorphological properties could be used for intra/interspecific classification of Asperula which is taxonomically critical.
HISTOPATHOLOGICAL ALTERATIONS IN GOBIUS NIGER (BLACK GOBY) DUE TO POLLUTION OF THE IZMIR BAY
Katalay, S; Minareci, E; Tuglu, I; Segner, H
The present study aims to investigate the possible impact of aquatic pollution of Izmir Bay on resident fish. Gobius niger were sampled from two stations of the Izmir Bay, and gills and liver were examined histopathologically. The presence of pathological lesions in gills and liver of the fish as possible result of pollutant exposure was evaluated by semiquantitative analyses. The only histopathological changes found were hyperplasia, hypertrophy (12.5%, 18.8%), epithelial degeneration (18.8%, 25%) in gill and fatty livers (12.5%, 25%) of the fishes from both study sites, respectively. The moderate manifestation of pathological lesions in organs of Gobius niger from the presumably Bostanli site may be either the result of substantial protective and detoxification capabilities of this fish species, or from recent measures to reduce water pollution in Izmir Bay such as the installment of wastewater treatment plants.
Detergent and phosphate pollution in Gediz River, Turkey
Minareci, O; Öztürk, M; Egemen, Ö; Minareci, E
The Gediz River, located in western Turkey, drains a region with a high population density and a strong economic activity. These factors, together with a lack of facilities for appropriate treatment of domestic and industrial sewage, are putting increasing pressure on water resources. The aim of the present study was to identify point sources of detergent pollution and to assess the surface water quality in the Gediz River by monitoring physicochemical variables. Point sources of wastewater, including some with a high pollution load, were detected in the most populated and industrialized areas of Manisa and Muradiye municipalities. These sources contribute to increasing degradation of water quality observed in the river. Concentrations of anionic detergents and phosphate were 0.084 - 5.592 g m(-3) and 0.0044 - 0.248 g m(-3), respectively. Gediz River is a significant contributor of nutrients to the Aegean Sea.
Distribution of dinoflagellate cysts in recent sediments from Izmir Bay (Aegean Sea, Eastern Mediterranean)
Aydin, H; Matsuoka, K; Minareci, E
To determine the species composition, abundance and horizontal distribution of dinoflagellate cysts in recent marine sediments, samples were collected at 13 stations in Izmir Bay, Aegean Sea. At least thirty-six dinoflagellate cyst types were identified, with the assemblages mainly dominated by Lingulodinium machaerophorum, Polykrikos kofoidii, Operculodinium centrocarpum, Gymnodinium cf. nolleri and Quinquecuspis concreta. Total cyst concentrations ranged from 41 to 3292 cystsg(-1) dry weight sediment. The majority of the cysts occurred in the inner and middle parts of the bay, where higher cyst concentrations were observed. According to the One Way Anova test, the difference between stations was significant statistically (p < 0.05). Two of the dinoflagellate cyst species have not been recorded previously as cysts or motile stages in Aegean marine waters; Gymnodinium cf. nolleri and Oblea acanthocysta. Alexandrium minutum and Alexandrium offine type cyst were observed at almost all stations although the cyst type of the Alexandrium catenella/tamarense complex was only found in the outer bay. These findings indicate potential seedbeds for initiation of future blooms and outbreaks of potentially toxic species in Izmir Bay. (c) 2011 Elsevier B.V. All rights reserved.
Karyotypic study on Silene, section Lasiostemones species from Turkey
Kemal, Y; Minareci, E; Çirpici, A
Karyology of the eight taxa of section Lasiostemones from Turkey was investigated. Diploid chromosome numbers and the basic chromosome number of the studied taxa were obtained as 2n=24 and x=12 respectively. The karyotype analysis of studied taxa was carried out and chromosome number of S. capitellata, S. lasiantha and S. manissadjianii were determined at the first time. The largest chromosomes were observed in S. capitellala and the smallest ones were observed in S. isaurica. S. capitellata shows the highest A, index. S. olympica represents the highest interchromosomal asymmetry coefficient (A(2)). The karyologic results of the study and the analysis of chromosomal morphology of each taxon were shown as tables.
A NEW RECORD FROM TURKEY: CONSOLIDA SAMIA PH DAVIS (RANUNCULACEAE)
Minareci, E; Altan, Y; Aktan, T
Consolida samia P.H.Davis (Ranunculaceae) is one of the Top 50 Plants of IUCN Species Survival Commission. C. samia, as a new record for the Flora of Turkey is described and illustrated from West Anatolia in this study. The specimens were collected from a gravel-like substrate with the largest pebbles in the Balikesir border of Manisa. The description of the species has also been expanded, following collection of specific plant materials. In this study, the detailed morphological characteristics and palynological properties were determined and compared with the closely related taxon C. hellespontica (Boiss.) Chater. Also, line drawing, photographs and a distribution map of C. samia species of Turkey were presented. Our studies led us to recommend it as CR Blab (iii,v)+2ab(iii,v), according to the 2001 IUCN categories.

Browsing by Author "Minareci, E"

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