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10,783 full-text articles. Page 191 of 218.

Morphology, Germination, And Storage Behaviour In Seeds Of Tuscan Populations Of Fritillaria Montana (Liliaceae), A Rare Perennial Geophyte In Italy, ELISA MANCUSO, GIANNI BEDINI, LORENZO PERUZZI 2012 TÜBİTAK

Morphology, Germination, And Storage Behaviour In Seeds Of Tuscan Populations Of Fritillaria Montana (Liliaceae), A Rare Perennial Geophyte In Italy, Elisa Mancuso, Gianni Bedini, Lorenzo Peruzzi

Turkish Journal of Botany

Fritillaria montana Hoppe ex W.D.J.Koch (Liliaceae) is a rare perennial geophyte growing in south-eastern Europe. Although it occurs in most of the Italian territory, it is very rare and is included in the Red List of threatened plant species of most of the regions in which it grows; in Tuscany (central Italy), it is listed as Critically Endangered. The aim of our study was to investigate the seed size, weight, and morphology; the seed moisture and oil contents; the seed germination conditions; and the effect of different storage treatments on final germination success in F. montana. Seeds were collected from …


Five New Records Of The Genus Echinops (Asteraceae) From Turkey, CEM VURAL, HANDAN ŞAPCI 2012 TÜBİTAK

Five New Records Of The Genus Echinops (Asteraceae) From Turkey, Cem Vural, Handan Şapci

Turkish Journal of Botany

Echinops ritrodes Bunge, E. gaillardotii Boiss., E. adenocaulos Boiss., E. chardinii Boiss. & Buhse, and E. tenuisectus Rech.f. were recorded for the first time in Turkey. The taxa are described and illustrated. Geographical distributions of the taxa are also mapped, and IUCN threat categories of the populations are discussed.


A Simple Technique For Cross-Sectioning Gymnosperm Needle Leaves Using Microtome, JUKYEONG EO 2012 TÜBİTAK

A Simple Technique For Cross-Sectioning Gymnosperm Needle Leaves Using Microtome, Jukyeong Eo

Turkish Journal of Botany

If a staining-permanent slide is not needed, this simple and faster microtome technique is very useful for cross-sectioning gymnosperm needle leaves. The technique employs 2× polyvinyl alcohol-lactic acid-glycerol (PVLG) without the steps of fixation, dehydration, clearing, embedding, deparaffinisation, and hydration. Conveniently, this technique can also be applied to thick leaves and other organs of angiosperms. The procedure is very simple and is suggested for use in plant anatomy research.


Diversity And Ecology Of Diatoms From Felent Creek (Sakarya River Basin), Turkey, CÜNEYD NADİR SOLAK, SOPHIA BARINOVA, EVA ACS, HAYRİ DAYIOĞLU 2012 TÜBİTAK

Diversity And Ecology Of Diatoms From Felent Creek (Sakarya River Basin), Turkey, Cüneyd Nadi̇r Solak, Sophia Barinova, Eva Acs, Hayri̇ Dayioğlu

Turkish Journal of Botany

Diatoms are an important group of aquatic ecosystems. To date, there have been many important algological studies in different river basins in Turkey. However, the use of diatoms in biomonitoring (according to diatom indices, Watanabe's or Van Dam's systems) is relatively new in Turkey. In the present study, 41 samples of epilithic diatoms were collected from 5 stations along Felent creek between June 2006 and February 2007 and a total of 117 diatom taxa were identified. The bio-indication (autoecology and abundance scores in the communities) of Felent creek was investigated and, as a result, the organic pollution indicators of Watanabe's …


Taxonomical Notes On Stachys Sect. Eriostomum (Lamiaceae) In Turkey, EKREM AKÇİÇEK, TUNCAY DİRMENCİ, EKREM DÜNDAR 2012 TÜBİTAK

Taxonomical Notes On Stachys Sect. Eriostomum (Lamiaceae) In Turkey, Ekrem Akçi̇çek, Tuncay Di̇rmenci̇, Ekrem Dündar

Turkish Journal of Botany

As a part of a revisional study of Stachys L. sect. Eriostomum (Hoffmanns. & Link) Dumort. (Lamiaceae), 4 taxa [S. tymphaea Hausskn., S. thracica Davidov, S. cretica L. subsp. cretica, and S. cretica L. subsp. salviifolia (Ten.) Rech.f.] were recorded for the first time from Turkey. S. cretica subsp. trapezuntica Rech.f., which was described based on 3 syntypes [Bourgeau 695; Sintenis 3432 (designated here as the lectotype); Handel-Mazzetti 324] near Trabzon, had not been collected again since 1907. It was found in 2 syntype localities from Trabzon in 2010 during this study, for the first time in 103 years. For …


Chromosome Counts And Karyomorphology Of Some Species Of Artemisia (Asteraceae) From Turkey, SELMA TABUR, ŞEMSETTİN CİVELEK, SİĞNEM ÖNEY, ŞADİYE BETÜL YILMAZ ERGÜN, MURAT KURŞAT, İSMAİL TÜRKOĞLU 2012 TÜBİTAK

Chromosome Counts And Karyomorphology Of Some Species Of Artemisia (Asteraceae) From Turkey, Selma Tabur, Şemsetti̇n Ci̇velek, Si̇ğnem Öney, Şadi̇ye Betül Yilmaz Ergün, Murat Kurşat, İsmai̇l Türkoğlu

Turkish Journal of Botany

Chromosome numbers and karyotypes of some species belonging to the genus Artemisia L. (Asteraceae) were investigated, and chromosome counts of 12 species, 1 of which was counted for the first time, are presented with a thorough compilation of previously published data. All of the species studied belong to the subgenus Artemisia Chromosome numbers of 6 taxa confirmed the previous data. Additionally, karyotypes of 8 species were reported. Karyotype analyses of 6 Artemisia species are reported here for the first time. The basic chromosome numbers in the species studied were x = 8 and x = 9, with ploidy levels ranging …


A New Species Of Vinca (Apocynaceae) From Eastern Anatolia, Turkey, MEHMET KOYUNCU 2012 TÜBİTAK

A New Species Of Vinca (Apocynaceae) From Eastern Anatolia, Turkey, Mehmet Koyuncu

Turkish Journal of Botany

Vinca soneri Koyuncu sp. nova (Apocynaceae) is described and illustrated as a new species from eastern Anatolia in Turkey. Diagnostic morphological characters of this new species from the related species V. herbacea Waldst. & Kit. are discussed.


The Leaf Anatomy Of Some Erica Taxa Native To Turkey, AYŞEGÜL KÖROĞLU, GÜLSEN KENDİR 2012 TÜBİTAK

The Leaf Anatomy Of Some Erica Taxa Native To Turkey, Ayşegül Köroğlu, Gülsen Kendi̇r

Turkish Journal of Botany

There are 5 taxa of Erica L. growing in Turkey, 1 of which is endemic. These taxa are Erica arborea, E. manipuliflora, E. bocquetii, E. sicula subsp. libanotica and E. spiculifolia. In this study, microscopic characteristics of the leaves of 4 taxa native to Turkey are reported. Microscopic views of the transverse and surface sections of the leaves of each species were photographed and are described in detail. The leaves are channelled beneath or strongly revolute. The long, simple, and unicellular eglandular trichomes are located along the channel part of the lower surface of leaves. There are simple, unicellular, and …


Cytotoxicity Of Aloe Vera Gel Extracts On Allium Cepa Root Tip Cells, ALİ İRFAN İLBAŞ, UMUT GÖNEN, SEMİH YILMAZ, MEHMET YAŞAR DADANDI 2012 TÜBİTAK

Cytotoxicity Of Aloe Vera Gel Extracts On Allium Cepa Root Tip Cells, Ali̇ İrfan İlbaş, Umut Gönen, Semi̇h Yilmaz, Mehmet Yaşar Dadandi

Turkish Journal of Botany

Aloe vera L. is a valuable medicinal plant and is currently used in pharmaceutical, cosmetic, and food industries worldwide. In the present study, the effect of various concentrations of Aloe vera leaf gel extracts was investigated on mitotic and phase indexes of Allium cepa L. root tip cells for 24 and 48 h durations. The EC_{50} value of gel extracts was found to be 20% and was used to determine the experimental concentrations. The results indicated that the mitotic index and root growth rate of A. cepa were considerably decreased in comparison to the control. We found that the cytotoxic …


Comparative Studies On The Competence Of Axillary Shoot Regeneration On Unsliced And Longitudinally Sliced Cotyledon Nodes Of Vigna Unguiculata, MUHAMMAD AASIM, SANCAR FATİH ÖZCAN, KHALID MAHMOOD kHAWAR, SEBAHATTİN ÖZCAN 2012 TÜBİTAK

Comparative Studies On The Competence Of Axillary Shoot Regeneration On Unsliced And Longitudinally Sliced Cotyledon Nodes Of Vigna Unguiculata, Muhammad Aasim, Sancar Fati̇h Özcan, Khalid Mahmood Khawar, Sebahatti̇n Özcan

Turkish Journal of Botany

Vigna unguiculata is an important food legume crop in the semiarid tropics. It suffers from a host of agricultural constraints including damage due to diseases and pests. Judicious application of biotechnological methods can lead to considerable improvement in this important crop. Shoot regeneration from unsliced and longitudinally sliced cotyledon node explants obtained from 3-day-old to 5-day-old seedlings grown in vitro was achieved on Murashige and Skoog (MS) medium containing 1.11, 2.22, 3.33, and 4.44 \muM benzylaminopurine (BA) supplemented with 1.0 mg/L polyvinylpyrrolidone and 500 mg/L bacteriostatic Augmentin. Callus induction was recorded in all culture media on both explants. The shoot …


A New Scorzonera (Asteraceae) Species From South Anatolia, Turkey, And Its Taxonomic Position Based On Molecular Data, KAMİL ÇOŞKUNÇELEBİ, SERDAR MAKBUL, MUTLU GÜLTEPE, DENİZ ONAT, MURAT ERDEM GÜZEL, SEDA OKUR 2012 TÜBİTAK

A New Scorzonera (Asteraceae) Species From South Anatolia, Turkey, And Its Taxonomic Position Based On Molecular Data, Kami̇l Çoşkunçelebi̇, Serdar Makbul, Mutlu Gültepe, Deni̇z Onat, Murat Erdem Güzel, Seda Okur

Turkish Journal of Botany

Scorzonera zorkunensis Coskuncelebi & S.Makbul (Asteraceae) is described and illustrated from Turkey. It grows on serpentine in alpine steppe vegetation together with several endemic Scorzonera L. species in southern Anatolia at altitudes of 2075-2100 m. It is morphologically similar to S. pisidica Hub.-Mor., but it differs in its habit and stem and leaf pubescence. Additionally, the size and micromorphological characters of the achenes and some anatomical traits of the leaves, stems, and roots are helpful in distinguishing these closely related taxa. The phylogenetic analyses based on nrDNA ITS sequence data indicate that S. pisidica is a sister species of the …


Two New Species Of Cephalaria (Caprifoliaceae) From Turkey, RAMAZAN SÜLEYMAN GÖKTÜRK, HÜSEYİN SÜMBÜL, AYTEN ÇELEBİ, LEYLA AÇIK 2012 TÜBİTAK

Two New Species Of Cephalaria (Caprifoliaceae) From Turkey, Ramazan Süleyman Göktürk, Hüseyi̇n Sümbül, Ayten Çelebi̇, Leyla Açik

Turkish Journal of Botany

Two new Cephalaria Schrad. ex Roem. et Schult. species (Caprifoliaceae) from Turkey, Cephalaria davisiana Göktürk & Sümbül and Cephalaria sumbuliana Göktürk, are described and illustrated. A map showing their distribution and other related taxa is given. The morphological differences of the 2 new species are discussed and comparisons are made with the similar Cephalaria speciosa Boiss. & Kotschy and Cephalaria elmaliensis Hub.-Mor. & V.A.Matthews. In addition to morphological observations, C. davisiana, C. sumbuliana, C. elmaliensis, and C. speciosa were analysed by applying RAPD-PCR techniques. RAPD methods clearly distinguished between the new species and the 2 species that they resemble.


Verbascum Hasbenlii (Scrophulariaceae), A New Species From Turkey, ZEKİ AYTAÇ, HAYRİ DUMAN 2012 TÜBİTAK

Verbascum Hasbenlii (Scrophulariaceae), A New Species From Turkey, Zeki̇ Aytaç, Hayri̇ Duman

Turkish Journal of Botany

Verbascum hasbenlii Aytaç & H.Duman sp. nov. (sect. Bothrosperma Murb.) is described and illustrated from Turkey. This new species was collected in B1 Çan (Çanakkale Province) area. V. hasbenlii appears to be closely allied to V. luciliae (Boiss.) O.Kuntze and V. haraldi-adnani Parolly & Eren. Its affinities with this and other related species are discussed. The characteristic features of pollen, seed, stomata structure, and hairs are studied using a scanning electron microscope and the distribution of the new species in Turkey is given.


In Vitro Plant Regeneration Via Petiole Callus Of Viola Patrinii And Genetic Fidelity Assessment Using Rapd Markers, GURURAJ CHALAGERI, UDDAGIRI VENKANNA BABU 2012 TÜBİTAK

In Vitro Plant Regeneration Via Petiole Callus Of Viola Patrinii And Genetic Fidelity Assessment Using Rapd Markers, Gururaj Chalageri, Uddagiri Venkanna Babu

Turkish Journal of Botany

Viola patrinii DC. (Violaceae) petiole explants were used for inducing calli. Significant callus proliferation was observed on MS medium supplemented with 16.12 \muM NAA and 13.33 \muM BA. Shoot regeneration was achieved upon transferring the green friable calli to MS medium with a 2-fold dilution of potassium dihydrogen phosphate supplemented with 23.25 \muM Kn and 2.68 \muM NAA. Maximum shoot regeneration was achieved in 4 weeks. Multiple shoots were separated and further cultured in half-strength MS medium supplemented with 9.85 \muM IBA with 2% sucrose. Profuse root development was observed after 20-25 days of culturing. Regenerated plants were successfully transferred …


New Ascomycete Records For Turkish Macromycota, ILGAZ AKATA, ABDULLAH KAYA, YASİN UZUN 2012 TÜBİTAK

New Ascomycete Records For Turkish Macromycota, Ilgaz Akata, Abdullah Kaya, Yasi̇n Uzun

Turkish Journal of Botany

Ascobolus stercorarius (Bull.) J.Schröt. (Ascobolaceae), Cheilymenia fimicola (De Not. & Bagl.) Dennis (Pyronemataceae), Plectania melastoma (Sowerby) Fuckel, and P. rhytidia (Berk.) Nannf. & Korf (Sarcosomataceae) are given as new records at the genus level for the macromycota of Turkey.


A New Record For The Flora Of Turkey: Lathyrus Atropatanus (Leguminosae), FATMA GÜNEŞ, ALİ HİKMET ÇIRPICI 2012 TÜBİTAK

A New Record For The Flora Of Turkey: Lathyrus Atropatanus (Leguminosae), Fatma Güneş, Ali̇ Hi̇kmet Çirpici

Turkish Journal of Botany

No abstract provided.


A New Record For The Flora Of Turkey: Sorbus Caucasica Var. Caucasica (Rosaceae), ÖZGÜR EMİNAĞAOĞLU, MİMAR SİNAN ÖZKAYA, HÜSEYİN AŞKIN AKPULAT 2012 TÜBİTAK

A New Record For The Flora Of Turkey: Sorbus Caucasica Var. Caucasica (Rosaceae), Özgür Emi̇nağaoğlu, Mi̇mar Si̇nan Özkaya, Hüseyi̇n Aşkin Akpulat

Turkish Journal of Botany

No abstract provided.


Allium Shirnakiense, Sect. Melanocrommyum (Liliaceae), A New Species From South-Eastern Turkey, LÜTFİ BEHÇET, MUSTAFA RÜSTEMOĞLU 2012 TÜBİTAK

Allium Shirnakiense, Sect. Melanocrommyum (Liliaceae), A New Species From South-Eastern Turkey, Lütfi̇ Behçet, Mustafa Rüstemoğlu

Turkish Journal of Botany

Allium shirnakiense L.Behçet & Rüstemoğlu sp. nova (sect. Melanocrommyum Webb & Berth.) is described as a species new to science on the basis of material collected from Şırnak Province. Morphologically, it is related to A. rhetoreanum Nab., which is an species endemic to South-eastern Turkey. A diagnosis, a taxonomic description, and some illustrations are given.


Contributions To The Description And Molecular Properties Of Erodium Hendrikii Alpınar (Geraniaceae), Endemic To Turkey, KAMİL ÇOŞKUNÇELEBİ, SALİH TERZİOĞLU, MUSTAFA KARAKÖSE, MURAT ERDEM GÜZEL 2012 TÜBİTAK

Contributions To The Description And Molecular Properties Of Erodium Hendrikii Alpınar (Geraniaceae), Endemic To Turkey, Kami̇l Çoşkunçelebi̇, Sali̇h Terzi̇oğlu, Mustafa Karaköse, Murat Erdem Güzel

Turkish Journal of Botany

A Turkish endemic, Erodium hendrikii Alpınar, was firstly described from NE Anatolia in 1994 based on insufficient specimens. In the present study, the description of this poorly known taxon was emended by adding several macro- and micromorphological traits of its leaf and fruit observed under LM and SEM. Furthermore, it was compared with the closely related species E. malacoides (L.) L'Her based on both morphological and molecular data and a modified identification key for the Flora of Turkey was prepared. The conservation status was also re-assessed according to the IUCN threat criteria.


Embryological And Cytological Features Of Gagea Bohemica (Liliaceae), FİLİZ VARDAR, IŞIL İSMAİLOĞLU, MERAL ÜNAL 2012 TÜBİTAK

Embryological And Cytological Features Of Gagea Bohemica (Liliaceae), Fi̇li̇z Vardar, Işil İsmai̇loğlu, Meral Ünal

Turkish Journal of Botany

The present study describes the developmental features of the embryo sac and ovular structures, particularly the obturator, during development in Gagea bohemica (Zauschn.) Schult. & Schult. f. The nucellar epidermis is poorly developed and composed of 1-2 layers of cuboidal cells. The tissue at the chalazal end of the nucellus differentiates into a hypostase. The micropyle is formed by the inner integument and composed of 4-5 cell layers that include starch grains. The functional megaspore results in an 8-nucleated embryo sac and conforms to a tetrasporic, Fritillaria L. type. Cytoplasmic nucleoloids consisting of protein and RNA are obvious during megasporogenesis. …


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