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Öğe Antimicrobial and Antioxidant Activities of Two Endemic Plants From Aksaray in Turkey(African Networks Ethnomedicines, 2013) Aşan Özüsağlam, Meltem; Önal Darılmaz, Derya; Erzengin, Mahmut; Tekşen, Mehtap; Karaman Erkul, SeherThis study was designed to examine the in vitro antimicrobial and antioxidant activities of the methanol, ethanol, water, n-hexane and dicholoromethane extracts of two Allium species (Allium scabriflorum and Allium tchihatschewii) which are endemic for the flora of Turkey. The antimicrobial efficiency of the plant was evaluated according to disc diffusion and microdilution broth methods. The antimicrobial test results showed that the extracts of A. scabriflorum and A. tchihatschewii showed varying degrees of antimicrobial activity on the tested microorganisms. The extracts were screened for their possible antioxidant activities by three complementary tests; DPPH free radical-scavenging, scavenging of hydrogen peroxide and metal chelating activity assays. All the extracts of A. scabriflorum and A. tchihatschewii exhibited lower DPPH free radical scavenging activity but higher metal chelating activity when compared to standards. The values of scavenging of hydrogen peroxide of the extracts were higher than the standards that of a-tocopherol, BHA, BHT and trolox, but close to that of ascorbic acid. In addition to the antioxidant activity of these plants, the total phenolic compounds and flavonoids were also measured in the extracts. The results presented here may suggest that the extracts of A. scabriflorum and A. tchihatschewii possess antimicrobial and antioxidant properties, and therefore, they can be used as a natural preservative ingredient in food and/or pharmaceutical industry.Öğe Astragalus oksutdagensis (Fabaceae), a new species from Turkey(John Wiley and Sons Inc, 2022) Karaman Erkul, Seher; Duman, Hayri; Ateş, Mevlüde AlevThis study describes the new species Astragalus oksutdagensis (A. sect. Eustales) from Kayseri, Turkey. The species is compared morphologically to the two similar species A. flavescens and A. vestitus, considering also pollen micromorphology. The geographical distribution of A. oksutdagensis, A. vestitus and A. flavescens is mapped. The phylogenetic relationships between the new species and other closely related species in the genus are inferred based on DNA data from the internal transcribed spacer regions (ITS) and it is shown that A. sect. Eustales is monophyletic but closely related to A. sect. Tragacantha. The new species is assessed as critically endangered (CR) following the IUCN Red List Categories and Criteria.Öğe Astragalus trifoliastrum (Fabaceae), a revived species for the flora of Turkey(Wiley-Blackwell, 2015) Bagheri, Ali; Karaman Erkul, Seher; Maassoumi, Ali Asghar; Rahiminejad, Mohammad Reza; Blattner, Frank R.As the result of surveying the relevant type specimens, together with macro- and micro-morphological studies, chromosome counting and ITS sequencing, Astragalus trifoliastrum was found to be a species independent of A. laguriformis (with which it has peviously been synonymized). In contrast, A. wanensis, assumed to be a synonym of A. trifoliastrum, indeed appears to be identical with A. trifoliastrum. The diploid chromosome number of 2n = 16 is reported for the first time for A. trifoliastrum.Öğe Astragalus yukselii (Leguminosae), a new species from Turkey(TÜBİTAK, 2013) Karaman Erkul, Seher; Aytaç, ZekiAstragalus yukselii Karaman & Aytaç (Leguminosae) is described as a new species and illustrated. The species is distributed near the town of Hadim in Konya Province (South Anatolia). Diagnostic morphological characters useful in discriminating the new species from its close relatives, A. isauricus Hub.-Mor. & V.A.Matthews and A. karjaginii (Boriss.) Boriss., are explained. Both species clearly belong to Astragalus L. sect. Macrophyllium Boiss., which is characterised by large leaves and flowers. We also present some notes on the ecology, biogeography, and conservation status of the new species.Öğe Characterization of chitosan-Based films with different aniseed oil content(Sivas Cumhuriyet Üniversites, 2018) Akyüz Yılmaz, Bahar; Akyüz, Lalehan; Çakmak, Yavuz Selim; Karaman Erkul, Seher; Sargın, İdris; Koç, BehlülThis paper reports the findings of a study describing the production of chitosan-based edible films incorporated with different amount of Pimpinella anisum seed oil. The chitosan-aniseed oil (CAO) composite films (CS, CAO-0.5, CAO-1, and CAO-2) were characterized with FT-IR and DSC and their mechanical, optical transmittance, hydrophobicity and anti-oxidative properties were also investigated. With the increasing concentration of aniseed oil in the films, a continuous decrease was observed in tensile strength and Young’s modulus. Optical transmittance of chitosan-aniseed oil composite films in the UV-Visible region was lower than that of chitosan control film (without aniseed oil). Incorporation of aniseed oil into chitosan films enhanced antioxidant activity of films. The results suggested that chitosan-aniseed oil composite films can be used as a food packaging material.Öğe Flora of Duatepe and its environment (Polatlı- Ankara/Turkey)(Biological Diversity and Conservation, 2011) Karaman Erkul, Seher; Aytaç, ZekiBu çalışma, İç Anadolu’da, Ankara ili, Polatlı ilçesi sınırları içerisinde yer alan Duatepe’nin florasını içermektedir. Tamamen Iran-Turan bitki coğrafyası içine giren çalışma alanından 2003–2004 yılları arasında toplanan 825 bitki örneğinin değerlendirilmesi sonucu 49 familya ve 209 cinse ait 338 tür ve tür altı takson elde edilmiştir. Bu taksonlardan 1’ i açık tohumlular, 337’si kapalı tohumlular (283’ü çift çenekliler, 54’ü tek çenekliler) alt bölümlerine aittir. İhtiva ettikleri tür ve tür altı takson bakımından büyük familyalar, Compositae (49), Gramineae (37) ve Leguminosae (33) ’dür. En çok türle temsil edilen cinsler ise Astragalus (10) , Centaurea (8) ve Alyssum (7)’dur. Bitki coğrafyası elemanlarının dağılımı ise: Iran-Turan 94 (%27,81), Akdeniz 26 (%7,69), Avrupa- Sibirya 2,37 (%2,37) ve diğerleri 210 (%62,13)’dir. Alandaki endemik takson sayısı 48 (%14,20)’dir.Öğe Gagea antakiensis, a new species from Southern Anatolia, Turkey and the new finding of Gagea lojaconoi (Liliaceae)(Magnolia Press, 2014) Kayıkçı, Samim; Ocak, Atila; Tekşen, Mehtap; Karaman Erkul, SeherGagea antakiensis (Liliaceae) is described and illustrated as a new species from Hatay province in South Anatolia, Turkey. The new species belongs to the section Didymobulbos, based on morphological features, and it is close to G. lojaconoi. The samples belonging to G. chrysantha species group in the Flora of Turkey were confirmed as G. lojaconoi. A taxonomic description, an illustration of the new species, geographical distribution, habitat and ecology, conservation status of the new species and its affinity to G. lojaconoi and G. chrysantha species group are given in this study. In addition, the anatomical features of G. antakiensis and G. lojaconoi are given. © 2014 Magnolia Press.Öğe Gagea vanensis, a new species and G. Chomutovae, a new record from southeastern Anatolia, Turkey (Liliaceae)(Magnolia Press, 2014) Tekşen, Mehtap; Karaman Erkul, SeherGagea vanensis sp. nov. (Liliaceae) is described and illustrated as a new species from Van province in Eastern Anatolia, Turkey. G. chomutovae is reported as a new record for the Turkish flora. Both species belong to the section Stipitatae, based on morphological features. The taxonomic relationships of G. vanensis with other taxa, such as G. ova, G. stipitata, G. absurda, G. kunawurensis, and G. chomutovae, are given. © 2015 Magnolia Press.Öğe Güzelyurt ilçe merkezi çevresi, Sivrihisar Tepesi, Gaziemir Kasabası ve Ilısu Köyü arasında kalan bölgenin florası(Aksaray-Türkiye)(Ali Nihat Gökyiğit Eğitim, Sağlık, Kültür, Sanat ve Doğal Varlıkları Koruma Vakfı, 2017) Öztürk, Hakan; Karaman Erkul, SeherBu araştırma, Güzelyurt (Aksaray) İlçe Merkezi çevresi, Sivrihisar Tepesi, Gaziemir Kasabası ve Ilısu Köyü arasında kalan bölgenin florasını tespit etmek amacıyla yapılmıştır. Araştırma alanından 2013-2015 yılları arasında 844 bitki örneği toplanmıştır. 66 familya (Pteridophyta 2, Magnoliophyta 64) ve 265 cinse ait, 490 takson tespit edilmiştir. Pteridophyta 3, Magnoliophyta 487 takson ile temsil edilmektedir. Magnoliphyta’dan Pinophytina 3 takson, Magnoliophytina 484 takson içermektedir. Toplam 68 takson (% 13,87) Türkiye için endemiktir. Taksonların fitocoğrafik bölgelere göre dağılımları şöyledir: 125 takson (% 25,51) İran-Turan elementi, 26 takson (% 5,31) Avrupa-Sibirya elementi, 26 takson (% 5,31) Doğu Akdeniz elementi, 313 takson (% 63,87) ise çok bölgeli veya bölgesi bilinmeyenlerdir.Öğe Increasing phylogenetic support for explosively radiating taxa: The promise of high-throughput sequencing for Oxytropis (Fabaceae)(Wiley-Liss Inc., 2017) Shahi Shavvon, Robabeh; Kazempour Osaloo, Shahrokh; Maassoumii, Ali Asghar; Moharrek, Farideh; Karaman Erkul, Seher; Lemmon, Alan R.; Michalak, Ingo; Muellner-Riehl, Alexandra Nora; Favre, AdrienThe origin and evolution of alpine biota are not yet fully understood, particularly in the vast Asian mountain regions. In addition, in these regions, most studies have concentrated on taxa occurring in areas benefitting from relatively generous rainfall from the summer monsoon. In this study, we collected a large number of Oxytropis species throughout their distribution range, and investigated the taxonomy and evolution of this diverse legume genus, which also occurs in mountainous areas prone to drought. Using nuclear (ITS) and plastid (trnL-F) markers, we reconstructed phylogenetic relationships within Oxytropis, conducting maximum parsimony, fasttree-like, maximum likelihood, Bayesian, and BEAST analyses. We also used Anchored Hybrid Enrichment (AHE) to test the power of this method to resolve relationships among a small subset of Oxytropis species. For AHE, we sampled eight species and obtained 527 low-copy and orthologous nuclear loci. We show that the taxonomy of this genus that radiated explosively in Asian mountains will remain recalcitrant based on conventional molecular methods. Because of a severe lack of resolution, none of the available taxonomic treatments for Oxytropis could either be confirmed or refuted based upon ITS and trnL-F. Nevertheless, we confirm the status of several species, and identify morphological or genetic particularities for some groups of species. The AHE approach yielded a highly supported phylogenetic tree, suggesting that increased taxon sampling coupled with AHE methods promise advances in the study of the taxonomy and evolution of Oxytropis, thus providing further analytical opportunities, such as diversification rate and biogeographical analyses.Öğe Karyotype analyses of 25 Turkish taxa of astragalus from the sections Macrophyllium, Hymenostegis, Hymenocoleus, and Anthylloidei (Fabaceae)(TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY, 2019) Martin, Esra; İçyer Doğan, Gizem; Karaman Erkul, Seher; Eroğlu, Haul ErhanThe karyotype analyses and chromosomal data of 25 taxa belonging to the sections Macrophyllium, Hymenostegis, Hymenocoleus, and Anthylloidei of the genus Astragalus naturally distributed in Turkey are described. The cytogenetic data obtained were evaluated systematically. The following somatic chromosome numbers were found: 2n = 16 for A. oleaefolius, A. dipodurus, A. cephalotes, and A. yukselii; 2n = 32 for A. longifolius; and 2n = 48 for A. isauricus in the sect. Macrophyllium; 2n = 16 for A. zohrabi, A. sosnowskyi, A. velenovskyi, A. trifoliastrum, and A. uraniolimneus; 2n = 18 for A. hymenocystis; 2n= 48 for A. lagopoides, A. gueruenensis, and A. ciloensis; and 2n = 64 for A. hirticalyx in the sect. Hymenostegis; 2n = 48 for A. vaginans in the sect. Hymenocoleus; and 2n= 16 for A. szowitsii, A. ermineus, A. zederbaueri, A. anthylloides, A. halicacabus, A. chardinii, and A. wagneri; and 2n = 48 for A. surugensis in the sect. Anthylloidei. In all taxa, the karyotype results were obtained for the first time. A. szowitsii is the most symmetrical karyotype in both index values. While A. zohrabi is the most asymmetrical karyotype in intrachromosomal asymmetry, A. wagneri is the most asymmetrical karyotype in interchromosomal asymmetry.Öğe New national and regional bryophyte records, 66(Taylor and Francis Ltd., 2021) Ellis, L. T.; Alataş, M.; Becerra Infante, D. A.; Cardenas Espinosa, K. A; Aziz, Md N.; Bergamo Decarli, G.; Karaman Erkul, Sehera The Natural History Museum, Cromwell Road, London, SW7 5BD, UK; b Department of Plant and Animal Production, Munzur University, Vocational School of Tunceli, Tunceli, Turkey; c International School of Advanced Studies, University of Camerino, Camerino (MC), Italy; d Grupo de Investigación Biología para la Conservación, Universidad Pedagógica y Tecnológica de Colombia, Colombia; e Botanical Survey of India, Central National Herbarium, Howrah, India; f Botanical Garden-Institute, Russian Academy of Science, Vladivostok, Russia; g Viale Rovereto, Trento, Italy; h Department of Botany, Kherson State University, Kherson, Ukraine; i Kherson Branch of Admiral Makarov University, Kherson, Ukraine; j Institute of Industrial Ecology Problems of the North of the Kola Science Center of RAS, Apatity, Murmansk Province, Russia; k University of Insubria, Varese, Italy; l Departamento de Biología Vegetal (Botánica), Facultad de Biología, Universidad de Murcia, E-30100, Murcia, Spain; mTeam of Ecological Survey Research, National Institute of Ecology, Seocheon, Korea; n Departamento de Biología (Botánica), Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, Spain; o Centro de Investigación en Biodiversidad y Cambio Global, Madrid, Spain; p Institute of Biology Komi Science Centre UB RAS, Kommunisticheskaja St., 28, Syktyvkar, 167982, Komi Republic, Russia; q Botanical Museum, P.O. Box 7, FI-00014 University of Helsinki, Helsinki, Finland; r Department of Landscape Architecture, Faculty of Architecture, Niğde Ömer Halisdemir University, Niğde, Turkey; s Geobotany Department, Lomonosov Moscow State University, Moscow, Russia; t Botanical Garden-Institute, Far East Branch of Russian Academy of Sciences, Vladivostok, Russia; u Departamento de Biodiversidad, Ecología y Evolución, Facultad de Biología, Universidad Complutense de Madrid, 28040 Madrid, Spain; v Departamento de Botánica y Geología, Facultad de Farmacia, Universidad de Valencia, Avda, Vicente Andrés Estellés s/n, E-46100 Burjassot, Spain; wDepartment of Systematics, Biodiversity and Evolution of Plants, Albrecht von Haller Institute, University of Göttingen, 37073 Göttingen, Germany; x Donceel, Belgium; y Conservatoire Botanique National du Massif Central, Chavaniac, Laffayette, France; z Plant Resources Division, National Institute of Biological Resources, Incheon, Korea; aaAdnan Menderes Üniversitesi, Fen Edebiyat Fakültesi, Biyoloji Bölümü, TR-09010 Kepez-Aydin, Turkey; abPolar-Alpine Botanical Garden, Kola Science Centre, Russian Acadamy of Science, Kirovsk-6, Murmansk Province 184256, Russia; acInstitute of Botany, University of Natural Resources and Life Sciences Vienna, Vienna, Austria; adDepartment of Botany, University of South Bohemia, ?eské Bud?jovice, Czech Republic; aeFreie Universität Berlin, Institut für Biologie, Systematische Botanik und Pflanzengeographie, Altensteinstr, 6, D-14195 Berlin, Germany; afKomarov Botanical Institute of the Russian Academy of Sciences, St. Petersburg, Russia; agDepartment of Botany, University of Calcutta, Kolkata, India; ahTetbury, Gloucestershire, UK; aiDepartment of Botany, University of British Columbia, Vancouver, British Columbia, Canada; ajValkenswaard, The Netherlands; akLicenciatura en Biología, Universidad Distrital Francisco José de Caldas, Torre de Laboratorios, Bogotá, Colombia; alMTA Centre for Ecological Research, Institute of Ecology and Botany, Vácrátót, Hungary; am51 Wood Street, Wallingford, Oxfordshire, OX10 0AX, UK; anDepartamento de Botânica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Brazil; aoDepartment of Environmental and Life Science, University of Cagliari, Sardinia, Italy; apCera dos Pomares, Aljezur, Portugal; aqKomarov Botanical Institute of the Russian Academy of Sciences, St. Petersburg, Russia; arDepartment of Biological, Geological and Environmental Biology, University of Catania, Catania, Italy; asCSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, India; atThe Ministry of Forests, Lands, Natural Resource Operations and Rural Development, B. C. Government, Victoria, British Columbia, Canada; auDepartment of Botany, Bijoy Krishna Girls’ College, Howrah, West Bengal, India; avCenter for Biodiversity Research and Extension in Mindanao (CEBREM), Central Mindanao University, Musuan, Bukidnon Province, 8710 Mindanao Island, Philippines; awDepartamento de Botánica y Geología, Facultad de Ciencias Biológicas, Universitat de València, Avda. Dr. Moliner 50, E-46100, Burjassot, Valencia, Spain; axVia Selvotta, Muzzana del Turgnano, Udine, Italy; ayInstitute of Environmental Sciences, Kazan Federal University, Kazan, Tatarstan Republic, Russia; azCalifornia Academy of Sciences (CAS), 55 Music Concourse Drive, Golden Gate Park, San Francisco, CA 94118, USA; baInstitute of Biology Bucharest of Romanian Academy, 296 Splaiul Independentei, 060031 Bucharest, P.O. Box 56-53, Romania; bbDepartment of Biology, Faculty of Science and Letters, Aksaray University, Aksaray, Turkey; bcDepartment of Forest Engineering, Faculty of Forestry, Çankırı Karatekin University, Çankırı, Turkey; bdInstitute of Botany and Biodiversity Research, University of Vienna, Vienna, Austria; beMissouri Botanical Garden, 4344 Shaw Boulavard, St. Louis, Missouri, 63110, USAÖğe New national and regional bryophyte records, 67(Taylor & Francis, 2021) Ellis, L. T.; Alataş, M.; Alvaro Alba, W. R.; Charry Giraldo, A. M.; Amatov, V.; Batan, N.; Becerra Infante, D. A.; Burghardt, M.; Czernyadjeva, I. V.; Yu. Kuzmina, E.; Doroshina, G. Ya.; Erata, H.; Garilleti, R.; Gradstein, S. R.; Jukoniene, I.; Karaman Erkul, SeherBulgaria. Samokov Region, Rila Mountains, Rila National Park, N slopes of peak Deno, on granite slabs and scree, collected with occasional sporophytes, 42.19709°N, 23.60322°E, 2780?m a.s.l, 17 September 2019, leg./det. R. Natcheva s.n. (SOM 9811-B). This arctic-alpine species has a north Holarctic circumpolar distribution and this is the first report of Andreaea blyttii for SE Europe. It is its southernmost locality and extends its range further south in Europe. The Rila Mountains are the highest in the Balkan peninsula and A. blyttii was found near the highest summit (Mussala, 2925?m a.s.l.). In Bulgaria the genus Andreaea is also represented by A. alpestris (Thed.) Schimp. and A. rupestris Hedw., both of which occur in the Rila Mountains.Öğe Phylogenetic relationships among native Oxytropis species in Turkey using the trnL intron, trnL-F IGS, and trnV intron cpDNA regions(TÜBİTAK, 2016) Tekpınar, Ayten; Karaman Erkul, Seher; Aytaç, Zeki; Kaya, ZekiWe tested the phylogenetic utility of three chloroplast DNA loci, i.e. the trnL(UAA) intron, trnL(UAA)-F(GAA) intergenic spacer (IGS), and trnV(UAC) intron, across thirteen native Oxytropis species. Our objective was to determine whether any of these chloroplast DNA markers could be beneficial to figure out phylogenetic relationships among Oxytropis species. To increase the interspecific sampling, nine sequences of the trnL intron and trnL-F regions were retrieved from GenBank and included in the analyses. No sequence of the trnV intron region was available in the database and so only sequences of the native species were used for the analyses. Phylogenies derived from maximum likelihood and maximum parsimony analyses indicated that the trnL intron and trnV intron regions provided better resolution for relationships among species with respect to the trnL-F region. The highest variable and parsimony informative sites were observed in the trnL intron region, while the lowest sites were seen in the trnV intron. Less variable sites for the trnV intron region were expected since no foreign sequences could be included in the analysis. Oxytropis lazica was phylogenetically separated from native species and clustered with foreign ones when the trnL intron and trnL-F regions were analyzed. The result obtained from the trnV intron region proved that Oxytropis engizekensis Duman and Vural may be a synonym of O. persica Boiss. A previous study that used morphological characters arrived at a similar conclusion.Öğe Phylogenetic relationships between Oxytropis DC. and Astragalus L. species native to an Old World diversity center inferred from nuclear ribosomal ITS and plastid matK gene sequences(Tubitak Scientific & Technical Research Council Turkey, 2016) Dizkırıcı Tekpınar, Ayten; Karaman Erkul, Seher; Aytaç, Zeki; Kaya, ZekiOxytropis and Astragalus represent one of the largest angiosperm genera complexes. Although phylogenetic studies of this complex exist, the evolutionary relationships among Astragalus and Oxytropis species sharing similar habitats in the Old World have not been studied in detail. The phylogenetic relationships among 13 Oxytropis and 56 Astragalus species native to Turkey were inferred from nucleotide sequence variations in the nuclear ribosomal internal transcribed spacer (ITS) and chloroplast maturase-like protein (matK) gene regions. In addition to our samples, 36 Oxytropis ITS and 6 Oxytropis matK sequences were retrieved from GenBank and included in the analysis. Phylogenies derived from a maximum likelihood analysis of the sequences indicated that Oxytropis and Astragalus genera are more likely monophyletic. However, the results suggest that New World Oxytropis species did not evolve by a single adaptive radiation in the genus, but rather from different Old World lineages. The genetic divergence between genera was less when the matK region was analyzed. Although the Oxytropis species did not show high genetic diversity, one subcluster of the genus was always distinctly separated in both trees. This subcluster was formed by the species Oxytropis engizekensis Duman & Vural and O. persica Boiss., which are also regarded as synonyms in regard to several morphological characters of the genus.Öğe Phytosociological features of Frigana Vegetation of Nakhchivan, Azerbaijan(Bangladesh Botanical Society, 2020) Jabbarov, M. T.; Ibragimov, A. S.; Nabieva, F. H.; Atamov, Vagif V.; Karaman Erkul, SeherThe phytosociological and floristic properties of mountain xerophyte plant associations (Frigana) spread on the territory of Nakhchivan Autonomous Republic of Azerbaijan were investigated. These unions are dominated by barbed and grassy plants. On the other hand Acantholimon spp., Astragalus spp. and Onobrychis cornuta are common in the area and dominant in the mountainous regions of Nakhchivan. The major parts of Shahbuz, Julfa and Ordubad are dominanted by vegetation. In the floristic composition of the frigana units the shrubs are dominant and the characteristic species are: Pyrus oxyprion, Astragalus microcephalus, Astragalus aureus, Juniperus polycarpos, Rhamnus pallasii, Atraphaxis spinosa, Acantholimon bracteatum, Rhus coriaria, Acer ibericum, Lonicera iberica, Prangos ferulacea, Thymus kotschyanus etc. The frigana units dominate the region's vegetation. The mountainous xerophyte vegetation encompasses strongly torn by relief, rocky slopes, and talus of the territory of the mountains. The continentalization of the climate after the glacial era, as well as the advent of anthropogenic activity, appears to be effective in expanding the range of vegetation. Although skeleton is the only plant bitumen in the rocky slopes, it is important to protect the dive lining of the slopes along the slopes and to prevent the wash away and spoilage residues.Öğe Pollen morphology of the genus oxytropis DC. in Turkey(Bangladesh Botanical Society, 2013) Çeter, Talip; Karaman Erkul, Seher; Aytaç, Zeki; Başer, BirolPollen morphology of 11 species of the genus Oxytropis DC. (Fabaceae) distributed in Turkey were examined with light (LM) and scanning electron microscope (SEM). Morphology of pollen grains shows isopolar, radially symmetric, tricolporate, prolate or subprolate, porus shape oblate or operculate and exine subtectate. The size varies with the polar axis from 19.52 - 33.31 µm and the equatorial axis from 13.50 - 25.82 µm. There are five ornamentation types: perforate at equatorial section and psilate at polar sections, microreticulate at equatorial sections and psilate at polar sections, microreticulate at equatorial sections and perforate at polar sections, microreticulate at both equatorial and polar sections and perforate at both equatorial and polar sections. Pollen aperture, shape and especially different ornamentation patterns at polar and equatorial section of pollen, as found in this study, appear to be important character. The findings of this study indicate the taxonomic implications of pollen morphology in understanding the similarity and relationships in the genus Oxytropis.Öğe Seed morphology and its systematic implications for genus Oxytropis DC. (Fabaceae)(TAYLOR & FRANCIS, 2015) Karaman Erkul, Seher; Celep, Ferhat; Aytaç, ZekiIn the present study, seeds of 13 Oxytropis DC. species (including two latest synonyms) classified in subg. Oxytropis (sect. Dolichocarpon, sect. Chrysantha and sect. Eumorpha), subg. Euoxytropis (sect. Orobia) and subg. Phacoxytropis (sect. Protoxytropis, sect. Janthina and sect. Mesogaea) from Turkey were examined using light and scanning electron microscopy to evaluate the taxonomic relevance of macro- and micro-morphological seed characters. As a result of the study, species-specific characters have been determined. Seeds exhibit variation in size, shape, surface sculpturing pattern, hilum position and weight. Seeds ranged from 1.61 to 4.04mm in length and from 1.02 to 2.56mm in width. Five different seed shapes were recognised, as prolonged semielliptic, reniform, prolonged reniform, quadratic and cardiform, with a length to width ratio ranging from 1.02 +/- 0.08 to 1.75 +/- 0.27. Rugulate, rugulate-reticulate and lophate sculpturing patterns were observed in the studied species. According to the results, seed characters, such as the size (length, width and the length/width ratio), the shape, the surface sculpturing and the weight appear to have low taxonomic value in distinguishing subgenera, sections and species.Öğe Synopsis of the sect. Hymenocoleus, sect. Hymenostegis, and sect. Macrophylliumbelonging to Astragalus (Fabaceae) in Turkey(TÜBİTAK, 2016) Karaman Erkul, Seher; Aytaç, Zeki; Ekici, MuratA synopsis of the sect. Hymenocoleus Bunge, sect. Hymenostegis Bunge, and sect. Macrophyllium Boiss. belonging to Astragalus L. in Turkey is given based on a revisional study carried out in Turkey. As a result of this study, an account of 19 species including keys and general distribution as well as their conservation status in Turkey is given. It is determined that A. narmanicus Karaman & Aytaç is new to science and A. expetitus Maassoumi, A. pereshkhoranicus Maassoumi & F.Ghahrem., and A. marivanensis Maassoumi & Podlech do not exist in Turkey. Additionally, the name of the sect. Hymenocoleus is preserved.Öğe The Bryophyte Flora of Ermenek Valley (Karaman, Mersin-Turkey)(Çankırı Karatekin Üniversitesi, 2022) Uygur, Ahmet; Ezer, Tülay; Karaman Erkul, Seher; Alataş, MevlütIn this study, the bryophyte flora of Ermenek Valley (Karaman, Mersin) was investigated. In a total 163 taxa belonging to 27 families and 64 genera were determined by identifying the bryophyte specimens collected from 33 stations at different habitats and different vegetation periods between the years 2019 and 2020. Marchantiophyta, 10 taxa belonging to 8 families and 10 genera, Bryophyta, 153 taxa belonging to 19 families and 54 genera are represented. Among them, 39 taxa are new records for C12 grid square and, also Fissidens gymnandrus is recorded for the second time from Turkey. While Pottiaceae (44 taxa) and Brachytheciaceae (26 taxa) two largest families in the study area, Ptychostomum (11 taxa), Syntrichia and Grimmia (10 taxa) are the most species rich genera. Taxa in the floristic list, along with ecological characteristics and life forms were given.
