Zuhal Tunç, R. Akçaalan, Latife Köker, Meriç Albay
{"title":"THE FIRST REPORT OF GEOSMIN AND 2-METHYLISOBORNEOL PRODUCER CYANOBACTERIA FROM TURKISH FRESHWATERS","authors":"Zuhal Tunç, R. Akçaalan, Latife Köker, Meriç Albay","doi":"10.23902/trkjnat.884423","DOIUrl":"https://doi.org/10.23902/trkjnat.884423","url":null,"abstract":"","PeriodicalId":23163,"journal":{"name":"Trakya University Journal of Natural Sciences","volume":"67 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79116179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kaan Hürkan, Ş. Arslan, M. Atalar, A. Aydin, I. Demirtaş, Dogukan Mutlu, Bahattin Tabar, M. Alma
{"title":"BIOMOLECULES AND NATURAL PRODUCTS REGULATE THE HUMAN ACE2 GENE EXPRESSION ON THE LUNG CANCER CELLS","authors":"Kaan Hürkan, Ş. Arslan, M. Atalar, A. Aydin, I. Demirtaş, Dogukan Mutlu, Bahattin Tabar, M. Alma","doi":"10.23902/trkjnat.896013","DOIUrl":"https://doi.org/10.23902/trkjnat.896013","url":null,"abstract":"","PeriodicalId":23163,"journal":{"name":"Trakya University Journal of Natural Sciences","volume":"36 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78619895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Biocompatible hydrogels are used in a variety of biomedical applications, including tissue scaffolds, drug delivery systems, lab/organ-on-a-chips, biosensors, cell-culture studies and contact lenses. The demand for novel and functional monomers to be used in hydrogel synthesis is increasing as the number of biomedical applications and need for biomaterials increase. The purpose of the study was to develop novel hydrogels from renewable materials. Acrylated methyl ricinoleate, a plant oil-based monomer, was used as the renewable material. The effects of acrylated methyl ricinoleate/N-isopropyl acrylamide molar ratio on hydrogel structural properties, thermal stability and in vitro cytotoxicity were studied. FTIR spectroscopy was used to characterize the structural properties of the hydrogels, while TGA was used to characterize the thermal properties. HEK293 and Cos-7 cell lines were used to test the cytotoxicity of the monomers and hydrogels. IC50 values for acrylated methyl ricinoleate and N-isopropyl acrylamide were found to be greater than 25 mg/mL. Cell viability of hydrogels containing 50% or more acrylated methyl ricinoleate was greater than 60%, while hydrogel biocompatibility decreased with decreasing molar ratio of acrylated methyl ricinoleate. Cells showed a minimum viability of 80% when incubated in hydrogel degradation products. An environmentally friendly synthesis method was developed and novel biocompatible hydrogels from renewable materials were produced for biomedical applications.
生物相容性水凝胶用于各种生物医学应用，包括组织支架、药物输送系统、实验室/芯片上的器官、生物传感器、细胞培养研究和隐形眼镜。随着生物医学应用的增加和对生物材料的需求增加，对用于水凝胶合成的新型功能单体的需求也在增加。本研究的目的是利用可再生材料开发新型水凝胶。以植物油基单体丙烯化蓖麻油酸甲酯为可再生材料。研究了丙烯化蓖麻油酸甲酯/ n -异丙基丙烯酰胺摩尔比对水凝胶结构性能、热稳定性和体外细胞毒性的影响。利用红外光谱(FTIR)表征了水凝胶的结构性质，热重分析仪(TGA)表征了水凝胶的热性能。用HEK293和Cos-7细胞株检测单体和水凝胶的细胞毒性。丙烯酸化蓖麻油酸甲酯和n -异丙基丙烯酰胺的IC50值均大于25 mg/mL。丙烯酸甲基蓖麻油酸含量≥50%的水凝胶细胞活力大于60%，但随着丙烯酸甲基蓖麻油酸摩尔比的降低，水凝胶的生物相容性降低。当在水凝胶降解产物中孵育时，细胞的存活率最低为80%。开发了一种环境友好的合成方法，并利用可再生材料制备了新型生物相容性水凝胶。
{"title":"SYNTHESIS, CHARACTERIZATION AND BIOCOMPATIBILITY OF PLANT-OIL BASED HYDROGELS","authors":"Ozlem Yalcin Capan, Pinar Cakir Hatir","doi":"10.23902/trkjnat.925742","DOIUrl":"https://doi.org/10.23902/trkjnat.925742","url":null,"abstract":"Biocompatible hydrogels are used in a variety of biomedical applications, including tissue scaffolds, drug delivery systems, lab/organ-on-a-chips, biosensors, cell-culture studies and contact lenses. The demand for novel and functional monomers to be used in hydrogel synthesis is increasing as the number of biomedical applications and need for biomaterials increase. The purpose of the study was to develop novel hydrogels from renewable materials. Acrylated methyl ricinoleate, a plant oil-based monomer, was used as the renewable material. The effects of acrylated methyl ricinoleate/N-isopropyl acrylamide molar ratio on hydrogel structural properties, thermal stability and in vitro cytotoxicity were studied. FTIR spectroscopy was used to characterize the structural properties of the hydrogels, while TGA was used to characterize the thermal properties. HEK293 and Cos-7 cell lines were used to test the cytotoxicity of the monomers and hydrogels. IC50 values for acrylated methyl ricinoleate and N-isopropyl acrylamide were found to be greater than 25 mg/mL. Cell viability of hydrogels containing 50% or more acrylated methyl ricinoleate was greater than 60%, while hydrogel biocompatibility decreased with decreasing molar ratio of acrylated methyl ricinoleate. Cells showed a minimum viability of 80% when incubated in hydrogel degradation products. An environmentally friendly synthesis method was developed and novel biocompatible hydrogels from renewable materials were produced for biomedical applications.","PeriodicalId":23163,"journal":{"name":"Trakya University Journal of Natural Sciences","volume":"12 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75968653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The trend towards natural products in the world is increasing due to the increased drug resistance of infectious diseases, the high prices for drugs and the difficulty of access. Also, bacterial or viral diseases that are difficult to treat and need a long time for proper treatment cause important infections in people. Since effective drugs could not be developed for most viral infections, it is very important to find natural products against viruses to introduce them to the world of science. The antiviral activities of the aqueous and methanol extract from Ferula halophila Pesmen, an endemic species to Turkey, has been investigated against human respiratory syncytial virus (HRSV, ATCC-VR-26). The cytotoxic and antiviral properties of plant extracts were investigated in HRSV / HEp-2 cell systems, respectively by the colorimetric MTT assay. In the study, the titer of RSV was used as 100 TCID50 (50% tissue culture infective dose). While MNTC (Maximum non-toxic concentration) of methanol extract was 195.313 µg/mL and CC50 (50% cytotoxic concentration) was 4366.22 µg/mL, it was determined as MNTC = 390.625 µg/mL and CC50 = 4366.22 for aqueous extract. According to the results, methanol extract showed more toxicity than the aqueous extract. The MNTC of Ribavirin used as a positive control was determined as 0.98 µg/mL and CC50 was 110.40 µg/mL. As a result of the study, it was determined that the methanol extract was not effective, whereas the aqueous extract had a significant anti-HRSV activity with the values of 50.69 µg/mL EC50 (50% Effective Concentration) and 97.54 Selectivity Index (SI). The EC50 and SI values of Ribavirin were 2.39 µg/mL and 46.19, respectively. According to the results, we can explain the presence of antiviral activity only in the aqueous extract and the absence in the methanol extract by the high toxicity of it and the insolubility of the antiviral compounds in the methanol extract.
{"title":"THE ANTI HRSV ACTIVITY OF Ferula halophila Peşmen AQUEOUS AND METHANOL EXTRACT BY MTT ASSAY","authors":"H. Doğan, Rüstem Duman","doi":"10.23902/TRKJNAT.805545","DOIUrl":"https://doi.org/10.23902/TRKJNAT.805545","url":null,"abstract":"The trend towards natural products in the world is increasing due to the increased drug resistance of infectious diseases, the high prices for drugs and the difficulty of access. Also, bacterial or viral diseases that are difficult to treat and need a long time for proper treatment cause important infections in people. Since effective drugs could not be developed for most viral infections, it is very important to find natural products against viruses to introduce them to the world of science. The antiviral activities of the aqueous and methanol extract from Ferula halophila Pesmen, an endemic species to Turkey, has been investigated against human respiratory syncytial virus (HRSV, ATCC-VR-26). The cytotoxic and antiviral properties of plant extracts were investigated in HRSV / HEp-2 cell systems, respectively by the colorimetric MTT assay. In the study, the titer of RSV was used as 100 TCID50 (50% tissue culture infective dose). While MNTC (Maximum non-toxic concentration) of methanol extract was 195.313 µg/mL and CC50 (50% cytotoxic concentration) was 4366.22 µg/mL, it was determined as MNTC = 390.625 µg/mL and CC50 = 4366.22 for aqueous extract. According to the results, methanol extract showed more toxicity than the aqueous extract. The MNTC of Ribavirin used as a positive control was determined as 0.98 µg/mL and CC50 was 110.40 µg/mL. As a result of the study, it was determined that the methanol extract was not effective, whereas the aqueous extract had a significant anti-HRSV activity with the values of 50.69 µg/mL EC50 (50% Effective Concentration) and 97.54 Selectivity Index (SI). The EC50 and SI values of Ribavirin were 2.39 µg/mL and 46.19, respectively. According to the results, we can explain the presence of antiviral activity only in the aqueous extract and the absence in the methanol extract by the high toxicity of it and the insolubility of the antiviral compounds in the methanol extract.","PeriodicalId":23163,"journal":{"name":"Trakya University Journal of Natural Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90059917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
: SIRE1 is an active and relatively high copy-number retroelement belongs to the Tyl/Copia long terminal repeat (LTR) retrotransposon superfamily. Distinctive SIRE1 elements ( ENV and GAG ) distributions in barley genome were observed by using fluorescent in situ hybridization (FISH). We performed PCR to obtain tetramethylrhodamine-dUTP (TRITC)-labelled probes. Localizations of SIRE1 ENV and GAG domains were demonstrated under confocal microscope on Hordeum vulgare L. cv. Hasat root preparations. Our results revealed the distributions of SIRE1 elements ENV and GAG in barley genome. These results may provide to uncover the organization of SIRE retrotransposon pattern in barley genome. Özet: SIRE1 , Tyl/Copia Uzun Uç Tekrarlı (Long Terminal Repeats- LTR) retrotranspozon üst ailesine ait olan aktif, nispeten yüksek kopyalı bir retroementtir. Arpa genomundaki ayırt edici SIRE1 elementlerinin ( ENV ve GAG ) dağılımları floresan in situ hibridizasyonu (FISH) kullanılarak gözlemlendi. Tetramethylrhodamine-dUTP (TRITC)-işaretli probların elde edilmesinde PCR gerçekleştirildi. SIRE1 ENV ve GAG domainlerinin yerleşimleri, Hordeum vulgare L. cv. Hasat kök preparatlarında konfokal mikroskobu altında gösterildi. Sonuçlarımız, arpa genomundaki SIRE1 elementlerinin ENV ve GAG dağılımlarını göstermektedir. Bu sonuçlar, SIRE1 elementlerinin arpa genomunun organizasyonunun ortaya çıkarılmasına katkı sağlayacaktır.
SIRE1是一个活跃的、拷贝数相对较高的逆转录元件，属于Tyl/Copia长末端重复(LTR)逆转录转座子超家族。利用荧光原位杂交技术(FISH)观察了SIRE1基因ENV和GAG在大麦基因组中的不同分布。我们通过PCR获得TRITC标记的四甲基罗丹明探针。在共聚焦显微镜下，研究了普通葡萄球菌SIRE1 ENV和GAG结构域的定位。哈萨特根制剂。我们的结果揭示了SIRE1元件ENV和GAG在大麦基因组中的分布。这些结果可能有助于揭示大麦基因组中SIRE反转录转座子模式的组织结构。Özet: SIRE1, Tyl/Copia Uzun Uç tekrarlyi (Long Terminal Repeats- LTR)反转录转座子 st ailesine ait olan aktif, nispeten yksek kopyalyi bir retroementtir。Arpa genomundaki ayırt dici SIRE1 elementlerinin (ENV ve GAG) dağılımları floresan in situ hibridizasyonu (FISH) kullanılarak gözlemlendi。四甲基罗丹明- dutp (TRITC)- i aretli probların elde edilmesinde PCRSIRE1 envve GAG域lerinin yerle imleri, Hordeum vulgere，等。Hasat kök preparatlarında konfokal microskobu altında gösterildi。Sonuçlarımız, arpa genomundaki SIRE1 elementlerinin ENV ve GAG dağılımlarını göstermektedir。但是，相对而言，SIRE1元件在arpa基因组组织中的作用为çıkarılmasına katkki sağlayacaktır。
{"title":"Distinctive SIRE1 Retrotransposon Patterns on Barley Chromosomes?","authors":"E. Karlik, N. Gozukirmizi","doi":"10.23902/trkjnat.773302","DOIUrl":"https://doi.org/10.23902/trkjnat.773302","url":null,"abstract":": SIRE1 is an active and relatively high copy-number retroelement belongs to the Tyl/Copia long terminal repeat (LTR) retrotransposon superfamily. Distinctive SIRE1 elements ( ENV and GAG ) distributions in barley genome were observed by using fluorescent in situ hybridization (FISH). We performed PCR to obtain tetramethylrhodamine-dUTP (TRITC)-labelled probes. Localizations of SIRE1 ENV and GAG domains were demonstrated under confocal microscope on Hordeum vulgare L. cv. Hasat root preparations. Our results revealed the distributions of SIRE1 elements ENV and GAG in barley genome. These results may provide to uncover the organization of SIRE retrotransposon pattern in barley genome. Özet: SIRE1 , Tyl/Copia Uzun Uç Tekrarlı (Long Terminal Repeats- LTR) retrotranspozon üst ailesine ait olan aktif, nispeten yüksek kopyalı bir retroementtir. Arpa genomundaki ayırt edici SIRE1 elementlerinin ( ENV ve GAG ) dağılımları floresan in situ hibridizasyonu (FISH) kullanılarak gözlemlendi. Tetramethylrhodamine-dUTP (TRITC)-işaretli probların elde edilmesinde PCR gerçekleştirildi. SIRE1 ENV ve GAG domainlerinin yerleşimleri, Hordeum vulgare L. cv. Hasat kök preparatlarında konfokal mikroskobu altında gösterildi. Sonuçlarımız, arpa genomundaki SIRE1 elementlerinin ENV ve GAG dağılımlarını göstermektedir. Bu sonuçlar, SIRE1 elementlerinin arpa genomunun organizasyonunun ortaya çıkarılmasına katkı sağlayacaktır.","PeriodicalId":23163,"journal":{"name":"Trakya University Journal of Natural Sciences","volume":"33 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2020-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83107368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dut posasi (DP), geleneksel bir Turk yiyecegi olan pekmez'in uretiminden sonra ortaya cikan bir atik maddedir. Bu calisma, Aspergillus niger MT-4 ile sitrik asit (SA) uretimi icin DP’nin substrat olarak kullanilabilirligini test etmek icin gerceklestirilmistir. Calismada ayrica, SA uretimini artirmak icin bazi kultur kosullari da optimize edilmistir. MP’nin nem, toplam karbonhidrat, suda-cozunur karbonhidrat, protein, lipid ve kul icerikleri sirasiyla %31,1; 47,1; 1,3; 13,4; 1,8 ve 1,4 olarak belirlenmistir. Deneyler, uretim besiyerinin 100 ml’sini iceren 250 ml'lik erlenler icerisinde gerceklestirilmistir. Hem fungal biyokutle (FB) hem de SA uretimi icin optimum DP konsantrasyonu, 120 gr/lt olarak belirlenmistir. DP bazli ortama eklenen tum KH2PO4 konsantrasyonlarinin SA uretimini azalttigi fakat FB uretimini artirdigi belirlenmistir. SA uretimi icin MgSO4 ve (NH4)2SO4’un optimal konsantrasyonlari sirasiyla 1 ve 2 gr/lt olarak bulunmustur. Diger optimal parametreler, baslangic pH'si 7,0 ve inkubasyon suresi 5 gun olarak belirlenmistir. Optimize edilmis kultur kosullari altinda, uretilen SA miktari 24,6 gr/lt olarak belirlenmistir. Besinci gunde, Yp/s; Yp/x ve Yx/s sirasiyla 0,2 gr SA/gr DP; 1,43 gr SA/gr FB ve 0,14 gr FB/gr DP olarak hesaplanmistir. DP'nin SA dahil mikrobiyal metabolitlerin uretimi icin fermentasyon substrati olarak kullanilabilirligi ilk kez bu calismada test edilmistir.
{"title":"USE OF MULBERRY POMACE AS SUBSTRATE FOR CITRIC ACID PRODUCTION BY Aspergillus niger MT-4","authors":"Rufina Aidynova, N. Arslan, M. Aydoğan","doi":"10.23902/trkjnat.670859","DOIUrl":"https://doi.org/10.23902/trkjnat.670859","url":null,"abstract":"Dut posasi (DP), geleneksel bir Turk yiyecegi olan pekmez'in uretiminden sonra ortaya cikan bir atik maddedir. Bu calisma, Aspergillus niger MT-4 ile sitrik asit (SA) uretimi icin DP’nin substrat olarak kullanilabilirligini test etmek icin gerceklestirilmistir. Calismada ayrica, SA uretimini artirmak icin bazi kultur kosullari da optimize edilmistir. MP’nin nem, toplam karbonhidrat, suda-cozunur karbonhidrat, protein, lipid ve kul icerikleri sirasiyla %31,1; 47,1; 1,3; 13,4; 1,8 ve 1,4 olarak belirlenmistir. Deneyler, uretim besiyerinin 100 ml’sini iceren 250 ml'lik erlenler icerisinde gerceklestirilmistir. Hem fungal biyokutle (FB) hem de SA uretimi icin optimum DP konsantrasyonu, 120 gr/lt olarak belirlenmistir. DP bazli ortama eklenen tum KH2PO4 konsantrasyonlarinin SA uretimini azalttigi fakat FB uretimini artirdigi belirlenmistir. SA uretimi icin MgSO4 ve (NH4)2SO4’un optimal konsantrasyonlari sirasiyla 1 ve 2 gr/lt olarak bulunmustur. Diger optimal parametreler, baslangic pH'si 7,0 ve inkubasyon suresi 5 gun olarak belirlenmistir. Optimize edilmis kultur kosullari altinda, uretilen SA miktari 24,6 gr/lt olarak belirlenmistir. Besinci gunde, Yp/s; Yp/x ve Yx/s sirasiyla 0,2 gr SA/gr DP; 1,43 gr SA/gr FB ve 0,14 gr FB/gr DP olarak hesaplanmistir. DP'nin SA dahil mikrobiyal metabolitlerin uretimi icin fermentasyon substrati olarak kullanilabilirligi ilk kez bu calismada test edilmistir.","PeriodicalId":23163,"journal":{"name":"Trakya University Journal of Natural Sciences","volume":"19 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2020-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76733872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ali Murat Keser, G. Ayyildiz, Merve Yıldırım, A. Yaprak, G. Tug
In this study, we aimed to determine the population size and distribution areas and to re-evaluate IUCN threat categories of Kalidium wagenitzii (Aellen) Freitag & G. Kadereit, Muscari adilii M.B. Guner & H. Duman and Verbascum gypsicola Vural & Aydogdu, which are endemics of the Central Anatolia region of Turkey. The three species have limited distribution areas and high risk of extinction as a result of human impact. The perennial halophytic species K. wagenitzii was found in 5 localities around Salt Lake (Tuz Golu) and a total number of 6458 mature individuals were determined. The area of occupancy of the species is 36 km2 and the extent of occurrence is 213 km2. Uncontrolled use of water resources for agricultural purposes is a serious threat factor for the species. Kalidium wagenitzii is listed in EN category according to the IUCN Red List criteria. Muscari adilii prefers marly soils and its habitat type is formed by secondary succession after the destruction of Pinus nigra and oak forests. It is known from 3 localities around Nallihan-Beypazari with a population size of 6144 mature individuals. The area of occupancy and the extent of occurrence of the species is 12 km2 and 28 km2, respectively. The pressures on the species are road construction and increase of farmland, afforestation and factory establishment. According to the IUCN Red List criteria, the species is listed in CR category. Verbascum gypsicola is distributed on marly soils. It is known from 3 localities around Nallihan–Beypazari and one locality in Sivrihisar-Eskisehir with 2755 mature individuals in total. The area of occupancy of the species is 16 km2 and the extent of occurrence is 269 km2. Overgrazing and expansion of agricultural land, together with factory establishment are the major threats for this species, which is listed as EN in IUCN Red List.
{"title":"CONSERVATION STATUS OF THREE RARE AND ENDEMIC SPECIES FROM TURKEY (KALIDIUM WAGENITZII, MUSCARI ADILII AND VERBASCUM GYPSICOLA)","authors":"Ali Murat Keser, G. Ayyildiz, Merve Yıldırım, A. Yaprak, G. Tug","doi":"10.23902/trkjnat.751851","DOIUrl":"https://doi.org/10.23902/trkjnat.751851","url":null,"abstract":"In this study, we aimed to determine the population size and distribution areas and to re-evaluate IUCN threat categories of Kalidium wagenitzii (Aellen) Freitag & G. Kadereit, Muscari adilii M.B. Guner & H. Duman and Verbascum gypsicola Vural & Aydogdu, which are endemics of the Central Anatolia region of Turkey. The three species have limited distribution areas and high risk of extinction as a result of human impact. The perennial halophytic species K. wagenitzii was found in 5 localities around Salt Lake (Tuz Golu) and a total number of 6458 mature individuals were determined. The area of occupancy of the species is 36 km2 and the extent of occurrence is 213 km2. Uncontrolled use of water resources for agricultural purposes is a serious threat factor for the species. Kalidium wagenitzii is listed in EN category according to the IUCN Red List criteria. Muscari adilii prefers marly soils and its habitat type is formed by secondary succession after the destruction of Pinus nigra and oak forests. It is known from 3 localities around Nallihan-Beypazari with a population size of 6144 mature individuals. The area of occupancy and the extent of occurrence of the species is 12 km2 and 28 km2, respectively. The pressures on the species are road construction and increase of farmland, afforestation and factory establishment. According to the IUCN Red List criteria, the species is listed in CR category. Verbascum gypsicola is distributed on marly soils. It is known from 3 localities around Nallihan–Beypazari and one locality in Sivrihisar-Eskisehir with 2755 mature individuals in total. The area of occupancy of the species is 16 km2 and the extent of occurrence is 269 km2. Overgrazing and expansion of agricultural land, together with factory establishment are the major threats for this species, which is listed as EN in IUCN Red List.","PeriodicalId":23163,"journal":{"name":"Trakya University Journal of Natural Sciences","volume":"23 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2020-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78582103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Deniz kaynaklarinin surdurulebilirligi icin balikcilik yonetimi son derece onemlidir. Bu nedenle balikcilik alanlari surekli olarak izlenmelidir. Bu calismada kullanilan veriler Iskenderun Korfezi'nde (Kuzeydogu Levant Denizi) avlanan bir ticari trol teknesi ile toplanmistir. Balikciliga bagli veriler, 2012-2013 balikcilik sezonunda tekne murettebat yardimi ile kaydedilmistir. 26 saat suren 33 trol cekimi 44 mm rombik ag gozu boyutuna sahip torba kullanilarak gerceklestirilmistir. Trol cekim hizi 2,5 ila 3,0 knot arasinda degismis ve en fazla 70 dakika surmustur. Iskenderun Korfezi’nde 39-69 m derinlik konturu incelenmistir. 32 tur iskarta olarak degerlendirilirken, 35 tur ticari av icinde yer almistir. Buna karsin, toplam av CPUEW (birim zamanda elde edilen biyokutle) acisindan degerlendirildiginde %67,2’sinin ticari ava %32,8'inin ise iskarta ait oldugu saptanmistir.
{"title":"THE COMMERCIAL AND DISCARD CATCH RATES OF THE TRAWL FISHERY IN THE ISKENDERUN BAY (NORTHEASTERN LEVANTINE SEA)","authors":"C. Dalyan","doi":"10.23902/TRKJNAT.773435","DOIUrl":"https://doi.org/10.23902/TRKJNAT.773435","url":null,"abstract":"Deniz kaynaklarinin surdurulebilirligi icin balikcilik yonetimi son derece onemlidir. Bu nedenle balikcilik alanlari surekli olarak izlenmelidir. Bu calismada kullanilan veriler Iskenderun Korfezi'nde (Kuzeydogu Levant Denizi) avlanan bir ticari trol teknesi ile toplanmistir. Balikciliga bagli veriler, 2012-2013 balikcilik sezonunda tekne murettebat yardimi ile kaydedilmistir. 26 saat suren 33 trol cekimi 44 mm rombik ag gozu boyutuna sahip torba kullanilarak gerceklestirilmistir. Trol cekim hizi 2,5 ila 3,0 knot arasinda degismis ve en fazla 70 dakika surmustur. Iskenderun Korfezi’nde 39-69 m derinlik konturu incelenmistir. 32 tur iskarta olarak degerlendirilirken, 35 tur ticari av icinde yer almistir. Buna karsin, toplam av CPUEW (birim zamanda elde edilen biyokutle) acisindan degerlendirildiginde %67,2’sinin ticari ava %32,8'inin ise iskarta ait oldugu saptanmistir.","PeriodicalId":23163,"journal":{"name":"Trakya University Journal of Natural Sciences","volume":"59 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2020-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82993749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this study, anatomical characteristics of leaves and stems of 19 taxa of Thlaspi sensu lato, 9 of which are endemic to Turkey, were investigated in order to determine taxonomic relationships among the studied taxa. The anatomical characteristics of all taxa were determined and assessed using the cluster analysis and the principal component analysis. The transverse sections of the leaves and stems exhibited various diagnostic characters in terms of the pattern of epidermal cell and mesophyll layers, the number and size of vascular bundles, and the thickness of the cortex and endodermis. Important differences were detected in number, size, and index of stomata, and in epidermal cell wall structures in the adaxial and abaxial surfaces. The results showed that the compared anatomical characteristics among taxa are partially compatible with their sectional delimitation in their traditional rank in The Flora of Turkey and the East Aegean Islands. The results also point out that some taxonomic re-arrangements may be required.
本文对土耳其特有的19个树属(Thlaspi sensu lato)的叶和茎的解剖特征进行了研究，以确定不同分类群之间的分类关系。利用聚类分析和主成分分析对各分类群的解剖特征进行了分析和评价。叶片和茎的横切面在表皮细胞和叶肉层的形态、维管束的数量和大小、皮层和内胚层的厚度等方面表现出不同的诊断特征。气孔的数量、大小、指数以及近、背面表皮细胞壁结构均存在显著差异。结果表明，《土耳其植物志》和《东爱琴海群岛植物志》中各分类群的比较解剖特征与它们在传统等级上的剖面划分部分一致。结果还指出，可能需要进行一些分类上的重新安排。
{"title":"NOTES ON LEAF AND STEM ANATOMY OF Thlaspi Sensu Lato","authors":"Cengiz Karaismailoğlu, Osman Erol","doi":"10.23902/TRKJNAT.762509","DOIUrl":"https://doi.org/10.23902/TRKJNAT.762509","url":null,"abstract":"In this study, anatomical characteristics of leaves and stems of 19 taxa of Thlaspi sensu lato, 9 of which are endemic to Turkey, were investigated in order to determine taxonomic relationships among the studied taxa. The anatomical characteristics of all taxa were determined and assessed using the cluster analysis and the principal component analysis. The transverse sections of the leaves and stems exhibited various diagnostic characters in terms of the pattern of epidermal cell and mesophyll layers, the number and size of vascular bundles, and the thickness of the cortex and endodermis. Important differences were detected in number, size, and index of stomata, and in epidermal cell wall structures in the adaxial and abaxial surfaces. The results showed that the compared anatomical characteristics among taxa are partially compatible with their sectional delimitation in their traditional rank in The Flora of Turkey and the East Aegean Islands. The results also point out that some taxonomic re-arrangements may be required.","PeriodicalId":23163,"journal":{"name":"Trakya University Journal of Natural Sciences","volume":"7 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2020-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86300102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. İşmen, M. A. İhsanoğlu, I. B. Daban, H. Inceoğlu
Cepola macrophthalma (Linnaeus, 1758)’in yas, buyume ve otolit biyometri-total boy iliskileri arastirilmistir. Bireyler Mart 2012-Haziran 2014 tarihleri arasinda Marmara Denizi'nde algarna ile yakalanmistir. Bu calismada orneklenen 51,5 cm'lik C. macrophthalma bireyinin boyu, Marmara Denizi'nde bu tur icin maksimum olarak kaydedilmistir. Boy-agirlik iliskisi denklemine gore buyume tipi negatif allometrik olarak belirlenmistir (b=1,36). Otolith boyu-otolith agirligi, otolith genisligi- otolith agirligi, otolith boyu-total boy, otolith genisligi-total boy, otolit boyu-otolit genisligi, total boy-otolit agirligi iliskileri OW=0,0002*OL2,6377 (R2=0,91), OW=0,001*OWi2,6215 (R2=0,94), OL=0,057*TL+3,2087 (R2=0,57), OWi=0,0316*TL+1,8511 (R2=0,55), OWi=0,527*OL+0,2015 (R2=0,86) OW=0,0004*TL+0,0029 (R2=0,58) olarak hesaplanmistir. Yaslar 80 adet otolit okumasindan hesaplanmistir; gozlemlenen en kucuk ve en buyuk yaslar sirasiyla 1 ve 5’tir. von Bertalanffy denklemine gore hesaplanan buyume parametreleri degerleri L∞=61,95 cm, K=0,19 yil-1, t0 = -0,05 yil olarak belirlenmistir. Stogun buyuk cogunlugu (%77) genc bireylerden (1-2 yas grubu) olusmaktadir. Marmara Denizi’nde C. macrophthalma stogunun daha cok genc bireylerden olusmasi stoklarin av baskisi altinda oldugunu dusundurmektedir.
{"title":"AGE, GROWTH AND OTOLITH BIOMETRY-BODY LENGTH RELATIONSHIPS OF RED BANDFISH (Cepola macrophthalma L., 1758) IN THE SEA OF MARMARA, TURKEY","authors":"A. İşmen, M. A. İhsanoğlu, I. B. Daban, H. Inceoğlu","doi":"10.23902/trkjnat.714201","DOIUrl":"https://doi.org/10.23902/trkjnat.714201","url":null,"abstract":"Cepola macrophthalma (Linnaeus, 1758)’in yas, buyume ve otolit biyometri-total boy iliskileri arastirilmistir. Bireyler Mart 2012-Haziran 2014 tarihleri arasinda Marmara Denizi'nde algarna ile yakalanmistir. Bu calismada orneklenen 51,5 cm'lik C. macrophthalma bireyinin boyu, Marmara Denizi'nde bu tur icin maksimum olarak kaydedilmistir. Boy-agirlik iliskisi denklemine gore buyume tipi negatif allometrik olarak belirlenmistir (b=1,36). Otolith boyu-otolith agirligi, otolith genisligi- otolith agirligi, otolith boyu-total boy, otolith genisligi-total boy, otolit boyu-otolit genisligi, total boy-otolit agirligi iliskileri OW=0,0002*OL2,6377 (R2=0,91), OW=0,001*OWi2,6215 (R2=0,94), OL=0,057*TL+3,2087 (R2=0,57), OWi=0,0316*TL+1,8511 (R2=0,55), OWi=0,527*OL+0,2015 (R2=0,86) OW=0,0004*TL+0,0029 (R2=0,58) olarak hesaplanmistir. Yaslar 80 adet otolit okumasindan hesaplanmistir; gozlemlenen en kucuk ve en buyuk yaslar sirasiyla 1 ve 5’tir. von Bertalanffy denklemine gore hesaplanan buyume parametreleri degerleri L∞=61,95 cm, K=0,19 yil-1, t0 = -0,05 yil olarak belirlenmistir. Stogun buyuk cogunlugu (%77) genc bireylerden (1-2 yas grubu) olusmaktadir. Marmara Denizi’nde C. macrophthalma stogunun daha cok genc bireylerden olusmasi stoklarin av baskisi altinda oldugunu dusundurmektedir.","PeriodicalId":23163,"journal":{"name":"Trakya University Journal of Natural Sciences","volume":"8 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2020-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78983134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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