Yazar "Ertugrul, Kuddisi" seçeneğine göre listele
Listeleniyor 1 - 20 / 23
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe Achene Micromorphology of the Genus Cyanus Mill. (Compositae) in Turkey and its Taxonomic Importance(MAGNOLIA PRESS, 2017) Sirin, Emrah; Ertugrul, Kuddisi; Uysal, TunaMicro- and macromorphological achene features of 20 knapweeds taxa from Turkey were searched using light and scanning electron microscopy. The achene surface was examined in detail for each taxon and a dendogram was established by numerical analyses derived from the observed micromorphological features. Cyanus pinardii was distinguished by epappose while Cyanus depressus was distinguished by longer pappus than achene. The results indicated that the examined taxa had very high variations in their achene surface. According to the results, pericarp texture and color, hilum position and pappus hairs could be used for taxonomical diagnosis of the Cyanus taxa. The hairiness of the surface and elaiosome in the basal of pericarp were characteristic in all Cyanus taxa.Öğe Anti-proliferative activity of aguerin B and a new rare nor-guaianolide lactone isolated from the aerial parts of Centaurea deflexa(ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER, 2011) Chicca, Andrea; Tebano, Marianna; Adinolfi, Barbara; Ertugrul, Kuddisi; Flamini, Guido; Nieri, PaolaThe phytochemical investigation of the aerial parts of Centaurea deflexa led to the identification of 21 compounds, among which three phenolic acids, one sterol, ten flavonoids, one phenylpropanoid derivative, two lignans and four sesquiterpene lactones. One of the latter compounds was a new, rare active principle (1) having an uncommon 15-nor-guaianolide skeleton. The biological investigation was carried out through a bio-guided assay fractionation of C deflexa extracts and highlighted an anti-proliferative activity of two sesquiterpene lactones, aguerin B and the newly identified 15-nor-guaianolide (1) against human pancreatic and colonic cancer cells. Of the two compounds, only aguerin B showed to induce apoptotic cell death, confirming the role as pro-apoptotic moiety of the alpha-methylene-gamma-lactone ring present in aguerin B but not in 1. (C) 2011 Elsevier Masson SAS. All rights reserved.Öğe Astragalus turkmenensis (Fabaceae), a new species from Turkey(FINNISH ZOOLOGICAL BOTANICAL PUBLISHING BOARD, 2007) Dural, Hueseyin; Tugay, Osman; Ertugrul, Kuddisi; Uysal, Tuna; Demirelma, HakkiAstragalus turkmenensis Dural, O. Tugay & Ertugrul sp. nova (Fabaceae) from Central Anatolia in Turkey is described. It is placed in sect. Cystium and known only from the type gathering. It is compared with the morphologically similar A. physodes subsp. acikirensis. A distribution map of the new species and the related species is provided.Öğe Centaurea glabro-auriculata (Asteraceae), a new species from Turkey(FINNISH ZOOLOGICAL BOTANICAL PUBLISHING BOARD, 2007) Uysal, Tuna; Demirelma, Hakki; Ertugrul, Kuddisi; Garcia-Jacas, Nuria; Susanna, AlfonsoCentaurea glabro-auriculata Uysal & Demirelma sp. nova (Asteraceae) is described and illustrated from Central Taurus, Turkey. The species grows in stony places in Derebucak (C3 Konya Province). It is morphologically most similar to C. drabifolioides and C. cheirolepidoides, which are likewise endemic to a restricted area within Turkey.Öğe The examinations of achene ultrastructural features of section Acrolophus (Centaurea, Asteraceae) via scanning electron microscopy(TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY, 2016) Candan, Feyza; Uysal, Tuna; Tugay, Osman; Bozkurt, Meryem; Ertugrul, Kuddisi; Demirelma, HakkiIn this study, the achene surfaces of 31 taxa belonging to the genus Centaurea L. were examined in detail by means of electron microscopy. The main aim of this study was to characterize the microsculpture of the achene surface of the Turkish species of Centaurea sect. Acrolophus (Cass.) DC. (Asteraceae). Detailed descriptions of the achene surface were given for each taxon and a fruitful dendrogram was established by numerical analyses derived from the determined micromorphological features. The relationships among the taxa studied were briefly assessed using this generated dendrogram. The results indicated that the examined taxa had very high variations regarding their achene surfaces and these variations have great importance in determining the taxonomic relationships of the discussed taxa. According to the results, pericarp texture and color could be used for taxonomical diagnosis of the Acrolophus species because they contain differences over a broad spectrum. The fruit coat was usually roguish and its ornamentation was fairly variable; therefore, this taxonomical microcharacter might also be useful in distinguishing closely related taxa. The hairiness of the surface of the pericarp was characteristic in all Acrolophus species and it would be evaluated as a decisive micromorphological character of the section within the genus.Öğe Genome-wide nucleotide diversity and associations with geography, ploidy level and glucosinolate profiles in Aethionema arabicum (Brassicaceae)(SPRINGER WIEN, 2018) Mohammadin, Setareh; Wang, Wei; Liu, Ting; Moazzeni, Hamid; Ertugrul, Kuddisi; Uysal, Tuna; Christodoulou, Charalambos S.The genus Aethionema is sister to the core Brassicaceae (including Arabidopsis thaliana) and thus has an important evolutionary position for comparative analyses. Aethionema arabicum (Brassicaceae) is emerging as a model to understand the evolution of various traits. We generated transcriptome data for seven Ae. arabicum genotypes across the species range including Cyprus, Iran and Turkey. Combined flow cytometry and single nucleotide polymorphism (SNP) analyses identified distinct tetraploid (Iranian) and diploid populations (Turkish/Cypriot). The Turkish and Cypriot lines had a higher genome-wide genetic diversity than the Iranian lines. However, one genomic region contained genes with a higher diversity in the Iranian than the Turkish/Cypriot lines. Sixteen percent of the genes in this region were chaperonins involved in protein folding. Additionally, an analysis of glucosinolate profiles, chemical defence compounds of the Brassicaceae, showed a difference in diversity of indolic glucosinolates between the Iranian and Turkish/Cypriot lines. We showed that different Ae. arabicum individuals have different ploidy levels depending on their location (Iranian versus Turkish/Cypriot). Moreover, these differences between the populations are also shown in their defence compounds.Öğe Hedysarum L. ( Fabaceae: Hedysareae) Is Not Monophyletic - Evidence from Phylogenetic Analyses Based on Five Nuclear and Five Plastid Sequences(PUBLIC LIBRARY SCIENCE, 2017) Liu, Pei-Liang; Wen, Jun; Duan, Lei; Arslan, Emine; Ertugrul, Kuddisi; Chang, Zhao-YangThe legume family (Fabaceae) exhibits a high level of species diversity and evolutionary success worldwide. Previous phylogenetic studies of the genus Hedysarum L. (Fabaceae: Hedysareae) showed that the nuclear and the plastid topologies might be incongruent, and the systematic position of the Hedysarum sect. Stracheya clade was uncertain. In this study, phylogenetic relationships of Hedysarum were investigated based on the nuclear ITS, ETS, PGDH, SQD1, TRPT and the plastid psbA-trnH, trnC-petN, trnL-trnF, trnS-trnG, petN-psbM sequences. Both nuclear and plastid data support two major lineages in Hedysarum: the Hedysarum s. s. clade and the Sartoria clade. In the nuclear tree, Hedysarum is biphyletic with the Hedysarum s. s. clade sister to the Corethrodendron + Eversmannia + Greuteria + Onobrychis clade (the CEGO clade), whereas the Sartoria clade is sister to the genus Taverniera DC. In the plastid tree, Hedysarum is monophyletic and sister to Taverniera. The incongruent position of the Hedysarum s. s. clade between the nuclear and plastid trees may be best explained by a chloroplast capture hypothesis via introgression. The Hedysarum sect. Stracheya clade is resolved as sister to the H. sect. Hedysarum clade in both nuclear and plastid trees, and our analyses support merging Stracheya into Hedysarum. Based on our new evidence from multiple sequences, Hedysarum is not monophyletic, and its generic delimitation needs to be reconsidered.Öğe Karyological studies of four endemic Centaurea L. species(UNIV FLORENCE BOTANY INST, 2015) Uysal, Tuna; Bozkurt, Meryem; Sezer, Ela Nur Simsek; Ertugrul, Kuddisi; Tugay, OsmanIn this paper, four endemic Centaurea species were investigated in terms of their chromosome numbers and karyomorphology. The chromosomal counts confirmed the results of previous reports, that the genus Centaurea has different basic chromosome numbers. Centaurea yaltirikii and Centaurea demirizii are diploid taxa. Centaurea yaltirikii has 2n = 18 chromosomes, and therefore has a basic chromosome number of nine, which is common in the genus Centaurea. A local endemic species, Centaurea demirizii has 2n = 16 chromosomes and a different basic chromosome number of x = 8, and this basic number is relatively rare for Centaurea. Centaurea leptophylla and Centaurea saligna are tetraploid with 2n = 36 chromosomes. We found predominance of chromosomes being metacentric and submetacentric. The results increase our karyological knowledge of these species. Moreover, this paper gives short taxonomic and morphologic notes to complement the information provided by Flora of Turkey with regards to the studied species.Öğe Karyological Studies of Some Species of the Genus Vicia L. (Leguminosae) in Turkey(Taylor & Francis Ltd, 2012) Arslan, Emine; Ertugrul, Kuddisi; Ozturk, Ayse BediaIn this study, 11 Vicia taxa naturally distributed in Turkey were karyologically studied. Chromosome numbers, karyotypes and idiograms of five taxa that belong to section Cracca of the genus Vicia (Vicia cracca subsp. gerardii, V. cracca subsp. atroviolacea, V. cracca subsp. stenophylla, V. canescens subsp. canescens, V. palaestina) and six taxa that belong to section Vicia (Vicia michauxii var. stenophylla, V. pannonica var. pannonica, V. hybrida, Vicia sativa subsp. nigra var. nigra, Vicia sativa subsp. nigra var. segetalis, Vicia sativa subsp. incisa var. cordata) were done. The chromosome numbers of these taxa were found as 2n = 10, 12, 14, 24. The chromosome numbers and karyotype analysis of five of these were reported for the first time and chromosome morphology of two taxa was identified for the first time. Also chromosome numbers of six taxa were verified. These results will contribute to the taxonomy of the genus Vicia which has a high diversity in Turkey.Öğe Karyomorphological Studies of the Populations Belonging to Psephellus aucherianus (DC.) Boiss. (Asteraceae) Complex(UNIV TOKYO CYTOLOGIA, 2017) Bozkurt, Meryem; Uysal, Tuna; Ertugrul, KuddisiThe chromosome numbers and karyotypes belonging to populations of Psephellus aucherianus complex were discussed by this paper. The chromosome numbers of all populations were determined as 2n=30. Karyomorphological results indicated that the populations of Ps. aucherianus complex display a broad variation and differ from each other in some aspects. Mainly, the karyotype formula could be evaluated as very specific and discriminative for each taxa, even their populations. Otherwise, the chromosomal indices indicated that all populations had largely symmetrical karyotypes and low chromosomal heterogeneity as a common chromosomal pattern within this complex. As a general result, we can infer that the species of these complex can be clearly characterized and separated according to karyomorphologic features and more importantly, chromosome pattern and rearrangements are very useful and informative to explain theirs evolutionary interactions as well changes.Öğe Karyomorphological study of five Turkish endemic Rhaponticoides Vaill. (Asteraceae, Cardueae) species(TAYLOR & FRANCIS LTD, 2016) Uysal, Tuna; Sezer, Ela Nur Simsek; Bozkurt, Meryem; Tugay, Osman; Ertugrul, Kuddisi; Demirelma, Hakki; Dural, HuseyinIn this paper, we aimed to determine the chromosomal features of Turkish endemic Rhaponticoides species. The chromosome numbers and karyomorphology of five species were examined. The chromosomal counts confirmed the previous reports of 2n = 30 given for Rhaponticoides species growing in different countries. Although R. iconiensis had a karyotype formula of 28m + 2sm, the remaining four species all had 26m + 4sm. Rhaponticoides aytachii and R. hierroi were especially similar in asymmetry indices. Rhaponticoides iconiensis and R. phytiae had satellites in the fourth and second chromosome pairs, respectively. Having the most symmetrical chromosomes, R. amasiensis displayed an important relationship with R. iconiensis and R. phytiae in terms of total chromosome length (TCL). If we make an overall assessment in terms of chromosomal asymmetry, chromosomes indices continues in the low range for each species and this low asymmetry indeces indicate that the species have symmetric chromosomes as karyomorphology. In conclusion, this is the first report which describes the karyotypes and chromosomal asymmetry indices of Turkish endemic Rhaponticoides species.Öğe Muscari turcicum (Liliaceae/Hyacinthaceae), a new species from south Anatolia, Turkey(BLACKWELL PUBLISHING, 2007) Uysal, Tuna; Ertugrul, Kuddisi; Dural, Huseyin; Kucukoduk, MustafaMuscari turcicum Uysal, Ertugrul & Dural (Liliaceae/Hyacinthaceae) is described and illustrated from south Anatolia, Turkey. This species grows on alpine steppe in the Middle Taurus (C4 Konya Province). Muscari turcicum, an endemic confined to the Middle Taurus, is closely related to M. discolor Boiss. & Hausskn. and M. anatolicum Cowley & Ozhatay. Diagnostic morphological characters are discussed and compared with those of closely related taxa. (C) 2007 The Linnean Society of London.Öğe NEW CHROMOSOME COUNTS IN CENTAUREA SECTION PHALOLEPIS (ASTERACEAE) FROM TURKEY(SOC ROYAL BOTAN BELGIQUE, 2009) Uysal, Tuna; Kose, Y. Bulent; Yucel, Ersin; Ertugrul, KuddisiEleven new chromosome counts in 10 Turkish endemic Centaurea species in section Phalolepis are reported. The prevalence of the basic chromosome number of x = 9, together with a close correlation between karyological data and classification of the eastern sections of the Jacea group, is confirmed. According to our counts, polyploidy, and especially tetraploidy, occurs in Phalolepis section and seems to be an important factor for diversification in this section of the genus Centaurea.Öğe New chromosome counts in the genus Centaurea (Asteraceae) from Turkey(OXFORD UNIV PRESS, 2009) Uysal, Tuna; Ertugrul, Kuddisi; Susanna, Alfonso; Garcia-Jacas, NuriaTwenty-two chromosome counts are reported in 16 species, four subspecies and two varieties of the genus Centaurea. These are mostly Turkish local endemics of section Cheirolepis, a complicated group from the Eastern clade of the Jacea group. Twenty-one reports are new. Prevalence of the basic chromosome number x = 9 among the eastern sections of the Jacea group is confirmed. (C) 2009 The Linnean Society of London, Botanical Journal of the Linnean Society, 2009, 159, 280-286.Öğe A new genus segregated from Thermopsis (Fabaceae: Papilionoideae): Vuralia(SPRINGER WIEN, 2014) Uysal, Tuna; Ertugrul, Kuddisi; Bozkurt, MeryemA relict endemic species originating from Turkey, Thermopsis turcica, was excluded from Thermopsis in consideration of morphologic studies based on its flowers and fruits as well as micromorphological features that were obtained by scanning electron microscopy (SEM) and data from supporting molecular analyses internal transcribed spacer (ITS). Additionally, phylogenetic analyses (maximum parsimony and neighbour-joining) were conducted using PAUP 4.0 software. These analyses supported a new taxonomical position for the Turkish species. SEM and morphological studies indicated that the species has unique features that have not been observed in other Thermopsideae species. The unique features and characteristics are comprehensively illustrated here. For confirmation of our purpose, the chromosome number and karyotype of V. turcica were determined via the KAMERAM software program. As a result, all detailed examinations and comparisons of Vuralia and related genera suggest that Vuralia is a new monotypic genus within Thermopsideae, and a new genus and combination nova were established for this Turkish species.Öğe A NEW SPECIES OF CENTAUREA (ASTERACEAE) FROM TURKEY(MAGNOLIA PRESS, 2016) Uysal, Tuna; Hamzaoglu, Ergin; Ertugrul, Kuddisi; Bozkurt, MeryemA new species of Centaurea (Asteraceae) from Turkey is described and illustrated. Centaurea nallihanense Uysal & Hamzaoglu occurs on stony slopes of corrupted oak openings in the Province of Ankara in Central Anatolia. It seems to be similar to C. sect. Ptosimopappus but related to the Cheirolepis-Pseudoseridia complex. Diagnostic characters of similar taxa are provided and a comprehensive discussion is held on the basis of molecular and karyological data. The geographical distribution of the new species is mapped. The chromosome number of C. nallihanense, 2n = 2x = 18, counted in root tips, is also reported and illustrated. Its karyotype formula is 6m+3sm. The karyotype of C. nallihanense consists of mainly metacentric chromosomes with the length ranging from 1.113 to 1.771 mu m, and the total haploid chromosome length of 12.909 mu m. Also, the ITS gene region of the new species is amplified and sequenced to compare with the relatives and to identify the taxonomical position of the new species within Centaurea.Öğe A new species of Cirsium sect. Epitrachys (Asteraceae: Cardueae) from the south of Turkey(TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY, 2017) Duman, Hayri; Tugay, Osman; Dirmenci, Tuncay; Ertugrul, KuddisiA new species, Cirsium bozkirensis H. Duman, Dirmenci & Tugay (Asteraceae), Cirsium sect. Epitrachys DC, is described from Konya Province, South Anatolia, Turkey. Diagnostic and morphological characteristics that distinguish it from allied species C. cephalotes Boiss. and C. pugnax Sommier & Levier. are provided. A description, distribution map, and taxonomic comments on the new species and allied species are given. SEM photograph about setae, stem indumentum, and achene of new and allied species are obtained and characters are discussed.Öğe A new species of Cousinia (sect. Cousinia, Asteraceae) from the Agri Mountain (eastern Turkey): evidence from morphology, karyology and anatomy(MAGNOLIA PRESS, 2019) Tugay, Osman; Ulukus, Deniz; Ertugrul, Kuddisi; Uysal, Tuna; Demirelma, Hakki; Dural, HuseyinCousinia agridaghensis (sect. Cousinia) from Agri province, eastern Turkey, is described as new to science. The new species is morphologically closely related to C. urumiensis, C. fedorovii and C. armena but differs in capitula shape, synflorescence shape, stem height, shape of segments of basal and uppermost cauline leaves. In addition, the new species is compared with C. urumiensis, which is distributed in Turkey, in terms of chromosome number and anatomical features. The basic chromosome number is determined x = 12 in C. agridaghensis and x = 13 in C. urumiensis. The differences in leaf midrib shape and number of vascular bundles in C. agridaghensis and C. urumiensis are observed. The achene coat and pollen grain surface of C. agridaghensis and C. urumiensis are studied with SEM photographs. Furthermore, a detailed description, distribution map, conservation status and ecology of the new species are given.Öğe A new species of Silene (Caryophyllaceae) from east Anatolia, Turkey(BLACKWELL PUBLISHING, 2008) Tugay, Osman; Ertugrul, KuddisiSilene bitlisensis O.Tugay & Ertugrul from the Green Line Afforestation Zone (B9: Bitlis Province) is a new species described and illustrated here. It is closely related to S. caramanica Boiss. & Heldr. var. ilarslanii Aytac & Dural, from which it mainly differs in its habit, leaf, and floral features. (C) 2008 The Linnean Society of London.Öğe Phylogeny of Hedysarum and tribe Hedysareae (Leguminosae: Papilionoideae) inferred from sequence data of ITS, matK, trnL-F and psbA-trnH(WILEY, 2015) Duan, Lei; Wen, Jun; Yang, Xue; Liu, Pei-Liang; Arslan, Emine; Ertugrul, Kuddisi; Chang, Zhao-YangBased on sequence data of the nuclear ITS and plastid matK, trnL-F and psbA-trnH markers of 162 species (169 accessions), the relationships and monophyly of tribe Hedysareae and its close relatives were assessed, with special reference to the infrageneric phylogeny of Hedysarum. The results showed that Hedysareae sensu Lock is not monophyletic, and its relationships with tribe Galegeae are unclear. Tribe Galegeae is polyphyletic. Hedysareae sensu Lock includes two strongly supported clades: the Caraganean clade and the Hedysaroid clade. Tribe Caraganeae Ranjbar was supported to be recognized based on the Caraganean clade, but it is herein suggested to be re-circumscribed by excluding Chesneya and Gueldenstaedtia. Our results support treating the Hedysaroid clade as tribe Hedysareae, comprising nine genera: Alhagi, Corethrodendron, Ebenus, Eversmannia, Greuteria, Hedysarum, Onobrychis, Sulla and Taverniera. Hedysarum as delimited here consists of three main clades: the first clade (the mesic group) corresponds to H. sect. Hedysarum; the second clade (the xeric group) is the re-defined H. sect. Multicaulia, consisting of the core group of H. sect. Multicaulia plus the former genus Sartoria; and the third clade (the psychrophilic group) includes the monospecific H. sect. Stracheya (with H. tibeticum) and two species previously placed in H. sect. Multicaulia (H. kumaonense, H. lehmannianum).