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Articles 1621 - 1650 of 1739
Full-Text Articles in Life Sciences
Some Ultrastructural Observations On Calcium Oxalate Raphide Crystal Idioblasts And Meristematic Cells Of The Adventive Root Tips Of Sternbergia Lutea (L.) Ker-Gawl. Ex Sprengel (Amaryllidaceae), Feruzan Dane, Çi̇ler Meri̇ç, Gülara Hüseyi̇nova
Some Ultrastructural Observations On Calcium Oxalate Raphide Crystal Idioblasts And Meristematic Cells Of The Adventive Root Tips Of Sternbergia Lutea (L.) Ker-Gawl. Ex Sprengel (Amaryllidaceae), Feruzan Dane, Çi̇ler Meri̇ç, Gülara Hüseyi̇nova
Turkish Journal of Botany
The adventive root tip cells of a bulbous plant, Sternbergia lutea (L.) Ker-Gawl. ex Sprengel (Amaryllidaceae), were examined by LM (light microscope) and EM (electron microscope). At the meristematic area of the root tips, which was 1 mm in length, two types of cell were observed: meristematic cells and Ca-oxalate raphide crystal idioblasts. Ca-oxalate raphide crystal idioblasts were observed to lie in two lines between the inner and outer ground meristems. Some similarities and some differences were found between those cells in their ultrastructure. It was seen that the membrane thickness of crystal idioblasts and meristematic cells were the same. …
A New Liverwort For The Flora Of Turkey, İsa Gökler, Hati̇ce Özenoğlu Ki̇remi̇t, Ferhat Ki̇remi̇t
A New Liverwort For The Flora Of Turkey, İsa Gökler, Hati̇ce Özenoğlu Ki̇remi̇t, Ferhat Ki̇remi̇t
Turkish Journal of Botany
The thalloid liverwort Riccia crozalsii Levier belonging to the class Marchantiopsida( Hepaticae) of the division Bryophyta is reported for the first time from Turkey, bringing the total number of Ricciaspecies known from Turkey to seventeen. The species was collected from Dilek Peninsula National Park near Kusadasi in Aydin
Peroxidase And Iaa-Oxidase Activities During Rooting In Cuttings Of Threepoplar Species, Tohi̇t Güneş
Peroxidase And Iaa-Oxidase Activities During Rooting In Cuttings Of Threepoplar Species, Tohi̇t Güneş
Turkish Journal of Botany
Peroxidase (PO: E. C 1.11.1.7) and IAA. Oxidase (IAA-O) enzyme activities were investigated during rooting in cuttings of Populus nigra L., Populus alba L. and Populus tremula L. ( Salicaceae), and the relations between enzyme activities and rooting ability were examined comparatively. PO activity started to increase the early stages of primordium formation and reached the highest level before root emergence. However, no apparent correlation was found between the activity of PO and the ability of the cuttings to form roots. IAA-O activity was observed only in root cuttings of P. alba and P. nigra. Activity increased after day 6 …
Check List Of Aspergillus And Penicillium Species Reported From Turkey, Ahmet Asan
Check List Of Aspergillus And Penicillium Species Reported From Turkey, Ahmet Asan
Turkish Journal of Botany
This paper reviews published accounts and presents a list of species of the genera Aspergillus Mich. and Penicillium Link in Turkey dating from the 1940s.
Taxonomy Of The Genus Prunus L. (Rosaceae) In Turkey, Ali̇ Arslan Dönmez, Şi̇nasi̇ Yildirimli
Taxonomy Of The Genus Prunus L. (Rosaceae) In Turkey, Ali̇ Arslan Dönmez, Şi̇nasi̇ Yildirimli
Turkish Journal of Botany
The taxonomy of the genus PrunusL. in Turkey is studied in detail. According to morphological characters, descriptions of the species have been evaluated and completed. P. kurdica Fenzl ex Fritsch, P. cocomilia Ten. var. puberula(Schneider) Browicz and P. divaricata Ledeb. subsp. ursina (Kotschy) Browicz are reduced to synonyms. A new key for the identification of the species has been prepared. Illustrations and distribution maps of particular species in Turkey were added to other information. Furthermore, data concerning habitat, altitude, flowering and fruiting time, distribution, chromosome numbers and taxonomic discussion for some species are given. Three new synonyms are proposed here. …
Reduction Of Lignin In Tobacco Through The Expression Of An Antisense Caffeic Acid O-Methyltransferase, Ti̇jen Talas Oğraş, Kemal Kazan, Nermi̇n Gözükirmizi
Reduction Of Lignin In Tobacco Through The Expression Of An Antisense Caffeic Acid O-Methyltransferase, Ti̇jen Talas Oğraş, Kemal Kazan, Nermi̇n Gözükirmizi
Turkish Journal of Botany
Caffeic acid O-methyltransferase (COMT) is a methylation enzyme involved in the early stages of lignin biosynthesis. To examine the effect of antisense expression of a heterologous COMT gene on lignification, an antisense construct of a cDNA encoding a caffeic acid O-methyltransferase ( pOMT8) from Stylosanthes humilis Humb., Bonpl. & Kunth Fabaceae was transferred into tobacco via Agrobacterium tumefaciens. A large number of kanamycin-resistant shoots were recovered after transformation, and randomly selected putative transgenics were analysed for stable integration of the transgene into their genomes. The analyses demonstrated that antisense expression of pOMT8 resulted in reductions in total COMT activity, which …
Two New Genus Records For The Mycoflora Of Turkey, Abdullah Kaya
Two New Genus Records For The Mycoflora Of Turkey, Abdullah Kaya
Turkish Journal of Botany
Crucibulum laeve(Bull. ex DC.) Kambly (Nidulariaceae) and Phaeomarasmius erinaceus(Fr.) Khn. (Strophariaceae) were recorded, at genus level, for the first time from Turkey.
Contributions To The Macrofungi Flora Of Antalya Province, Kudret Gezer
Contributions To The Macrofungi Flora Of Antalya Province, Kudret Gezer
Turkish Journal of Botany
We recorded 81 macrofungal species collected from the Antalya region. They are distributed within 29 families, 7 belonging to the Ascomycetes and 74 to the Basidiomycetes.
A New Myxomycetes Genus Record For Turkey (Stemonitopsis(Nann.-Brem.) Nann.-Brem.), C. Cem Ergül, Başaran Dülger
A New Myxomycetes Genus Record For Turkey (Stemonitopsis(Nann.-Brem.) Nann.-Brem.), C. Cem Ergül, Başaran Dülger
Turkish Journal of Botany
Stemonitopsis typhina (Wiggers) Nann.-Brem. and Stemonitopsis microspora (A.Lister) Nann.-Brem. ( Stemonitales/Stemonitaceae) are recorded for the first time from Turkey. This is also a new Myxomycetes genus record for Turkey.
A New Record For The Flora Of Turkey Amaranthus Spinosusl. (Amaranthaceae), Mehmet Kaya, F. Nezi̇hi̇ Uygur
A New Record For The Flora Of Turkey Amaranthus Spinosusl. (Amaranthaceae), Mehmet Kaya, F. Nezi̇hi̇ Uygur
Turkish Journal of Botany
A new species, Amaranthus spinosus L. ( Amaranthaceae), is reported for the first time for the Flora of Turkey. The specimens were collected from a corn field around Kazıklıbucağı village of the Karataş district of Adana province (C5).
The Liverworts (Hepaticae)Of Sinop And Its Environs(Ayancık, Boyabat And Gerze), Barbaros Çeti̇n
The Liverworts (Hepaticae)Of Sinop And Its Environs(Ayancık, Boyabat And Gerze), Barbaros Çeti̇n
Turkish Journal of Botany
In the vegetation period, a total of 45 plant specimens were collected from the area between 1993 and 1995. At the end of this investigation 19 liverworts species were identified, belonging to 13 families and 14 genera. Of these, 8 taxa are new for the A3 grid-square. Blasia pusilla L., is reported for the second time from Turkey.
Contributions To The Flora Of The Western Part Of Istranca Mountains (Kırklareli/Thrace Region), Celal Yarci
Contributions To The Flora Of The Western Part Of Istranca Mountains (Kırklareli/Thrace Region), Celal Yarci
Turkish Journal of Botany
This study was carried out for to contribute to the flora of Istranca (Yildiz) Mountains Iying from northwest to southeast on the north of Thrace Region between 1996-1997. The study area is placed in A1 (E) square in grid system adopted DAVIS and in Euro-Siberian phytogeographical region. According to the results of this study; 321 taxa belonging to 219 genera and 65 families were recorded. Among these taxa, there are 4 Pteridophytes and 317 Spermatophytes (253 Dicotyledones and 64 Monocotyledones). The largest families are as follows: Poaceae 38 taxa (11.83%), Asteraceae 35 taxa (10.90%) and Lamiaceae 21 taxa (6.54%). The …
Soluble Sugar Composition Of Elaeagnus Angustifolial.Var. Orientalis (L.) Kuntze (Russian Olive) Fruits, F. Ahmet Ayaz, Asim Kadioğlu, Ali̇ True
Soluble Sugar Composition Of Elaeagnus Angustifolial.Var. Orientalis (L.) Kuntze (Russian Olive) Fruits, F. Ahmet Ayaz, Asim Kadioğlu, Ali̇ True
Turkish Journal of Botany
Soluble sugar composition from ethanolic extract of Elaeagnus angustifoliaL. (Russian olive) ( Elaeagnaceae) collected from six different populations in the Gümüshane-Bayburt Valley was determined by gas chromatography. In the fruits, fructose and glu-cose were determined to be the major sugars. The analysis showed the occurrence of fructose and glucose in concentrations (w/w) of 32.62-34.60% and 23.37-24.10% (minimum-maximum), respectively. Sucrose was not detected in mature fruits while fruc-tose and glucose were identified as the major sugars among these populations.
Effect Of Zinc Treatment On The Alleviation Of Sodium And Chloride Injury In Tomato (Lycopersicum Esculentum(L.) Mill. Cv. Lale) Grown Under Salinity, Mehmet Alpaslan, Ali İnal, Aydın Güneş, Yakup Çikili, Hesna Özcan
Effect Of Zinc Treatment On The Alleviation Of Sodium And Chloride Injury In Tomato (Lycopersicum Esculentum(L.) Mill. Cv. Lale) Grown Under Salinity, Mehmet Alpaslan, Ali İnal, Aydın Güneş, Yakup Çikili, Hesna Özcan
Turkish Journal of Botany
Nonsaline and saline (30 mM NaCl), Zn (10, 20, 40 mg kg -1 ) and without Zn treatment and factorial combinations of NaCl and Zn on the fresh and dry weights of the plants, and sodium (Na), chloride (Cl) and zinc (Zn) contents of both young and old leaves were determined and the effects of Zn on the Na and Cl translocation within the plants were investigated. Salinity decreased the fresh and dry weights of the plants while this effect of salinity diminished with increasing Zn levels. Na and Cl con-centrations of both young and old leaf tissues decreased with …
An Investigation On The Morphology, Anatomy And Ecology Oforiganum Onites L.1, Ahmet Gönüz, Bilkan Özörgücü
An Investigation On The Morphology, Anatomy And Ecology Oforiganum Onites L.1, Ahmet Gönüz, Bilkan Özörgücü
Turkish Journal of Botany
Possible variations in the morphology, anatomy, ecology and phenology of Origanum onites L. ( Lamiaceae/Labitae) in rela-tion to altitudinal variations was studied together with the differences in etheric oil content. A decrease in the stem and lower leaf lengths was observed compared with an increase in the cortical area and vascular tissues in parallel with altitudinal increases. The number and size of stomata also varied with this factor. Etheric oil content was found to be different in relation to altitude.
Studies On The Ecology Of Chrozophora Tinctorial. Andrubia Tinctoruml. In Western Anatolia, Süleyman Başlar, Hasan Hüseyin Mert
Studies On The Ecology Of Chrozophora Tinctorial. Andrubia Tinctoruml. In Western Anatolia, Süleyman Başlar, Hasan Hüseyin Mert
Turkish Journal of Botany
This study was carried out to determine the autecological and economic importance of Chrozophora tinctoria L. ( Euphorbiaceae) and Rubia tinctorumL. ( Rubiaceae) distributed in western Anatolia. A Physical and chemical analysis was performed on the soils where these plants grow and a chemical analysis of the plants was also carried out. The results obtained were assessed using regression analysis. It was found that both of the plants generally grow on loam and clayey-loam; neutral to slightly alkaline soils which are both poor and rich in calcium carbonate; slightly saline; moderately rich, rich and very rich in organic matter; rich …
Pollen Flora Of Pakistan - Xiii. Campanulaceae, Anjum Perveen, Mohammad Qaiser
Pollen Flora Of Pakistan - Xiii. Campanulaceae, Anjum Perveen, Mohammad Qaiser
Turkish Journal of Botany
The pollen morphology of 10 species belonging to the 3 genera of the family Campanulaceae were investigated with a light microscope and sacanning microscope. It is eurypalynous in nature. Pollen grains are mostly oblate-spheroidal, rarely prolate-spheroidal or spheroidal, often suboblate. Tectum striate-rugulate, often subpsilate with spinules. On the basis of apertural types 2 distinct pollen types are recognized viz. Campanula latifolia - type, Codonopsis clematidea- type.
The Flora Of The Agricultural Areas In Enez (Edirne) And Environs, Mesut Ki̇reç, Celal Yarci
The Flora Of The Agricultural Areas In Enez (Edirne) And Environs, Mesut Ki̇reç, Celal Yarci
Turkish Journal of Botany
This work was carried out in the agricultural areas of Enez (Edirne) and environs. The study area has suitable conditions for plant species richness such as different microclimates, soils, and intensive agricultural activities. A total of 150 taxa were identi-fied belonging to Pteridophyta (2), and Spermatophyta (148). Of these, 118 taxa of Spermatophyta are in Dicotytedoneae and 30 taxa are in Monocotyledoneae. The results show that 8 taxa are new records, 1 for Thrace, 5 for A1 square and 2 for European part of A1 square.
Karyological Studies On Vicia Satival. Subsp. Incisa(Bieb.) Arc. Var. Incisa, Çiler Meri̇ç, Feruzan Dane
Karyological Studies On Vicia Satival. Subsp. Incisa(Bieb.) Arc. Var. Incisa, Çiler Meri̇ç, Feruzan Dane
Turkish Journal of Botany
Vicia sativa L. subsp. incisa (Bieb.) Arc. var. incisa was investigated karyologically (chromosome number, karyotype and mitotic division). The chromosome number of Vicia sativa subsp. incisa var. incisa was counted for the first time and it was found to be 2n=14. In the karyotype, 1 submedian (SM) and 6 subterminal (ST) chromosome pairs were found, in one of which a SAT-chromosome was detected. A satellite was on the short arm of the 3rd chromosome pair. In the cells of the root tips, the course of mitosis was regular. The presence of subsp. incisa var. incisa in the flora of Turkey …
Barbula Glauca(Ryan) Möll., A New Record For The Moss Flora Of Turkey, Barbaros Çeti̇n
Barbula Glauca(Ryan) Möll., A New Record For The Moss Flora Of Turkey, Barbaros Çeti̇n
Turkish Journal of Botany
Barbula glauca (Ryan) Möll. is reported for the first time from Turkey. The locality is situated almost 35 km north of Gerze District (Sinop).
New Floristic Records For The Squares B3 And B4 (Ilgın-Konya, Turkey), Memduh Seri̇n, Kuddisi Ertuğrul
New Floristic Records For The Squares B3 And B4 (Ilgın-Konya, Turkey), Memduh Seri̇n, Kuddisi Ertuğrul
Turkish Journal of Botany
No abstract provided.
Elaeagnus Angustifolial. As A Biomonitor Of Heavy Metal Pollution, Ahmet Aksoy, Uğur Şahi̇n
Elaeagnus Angustifolial. As A Biomonitor Of Heavy Metal Pollution, Ahmet Aksoy, Uğur Şahi̇n
Turkish Journal of Botany
The leaves of Elaeagnus angustifolia L. (Elaeagnaceae) were tested as a possible biomonitor of heavy metal pollution in Kayseri. Concentration of Pb, Cd and Zn were determined in unwashed and washed leaves and soils. Differences between the unwashed and washed samples varied according to the metal pollutant levels. Significant correlations were obtained between the heavy metal concentrations in surface soil and washed leaf samples. E. angustifoliawas found to be a useful biomonitor of the heavy metals investigated.
Nitrate Reductase Activity In Verbascum L. ( Scrophulariaceae) Species From The Eastern Mediterranean In Dependence On Altitude, Gürcan Güleryüz, Hülya Arslan
Nitrate Reductase Activity In Verbascum L. ( Scrophulariaceae) Species From The Eastern Mediterranean In Dependence On Altitude, Gürcan Güleryüz, Hülya Arslan
Turkish Journal of Botany
Nitrate reductase activity (NRA) was investigated in diferent parts of some Verbascum L. species ( Scrophulariaceae) collected from different altıtudes of Uludag Mountain, Bursa Turkey. NR activities were compared with respect to (1) different plant organs, (2) different Verbascumspecies and (3) samples collected from different altıtudes (120-1850 m). The highest levels of NRA were found for all species in the leaves. Significant differences were determined between the samples collected from different altıtudes. Despite the NRA is the highest in V. olympicum Boiss., it is the lowest in V. lagurus Fisch. & Mey. Furthermore the correlation between NRA values in aboveground …
Lichen Flora Of Trabzon, Kenan Yazici
Lichen Flora Of Trabzon, Kenan Yazici
Turkish Journal of Botany
This study was performed between May 1993 and November 1995 in Trabzon. A total of 230 species and 1 variety, which belongs to the 35 families in Ascomycotina, were defined. A total of 39 species were understood to be new records for Turkey.
A Contribution To The Moss Flora Of Western Turkey: Moss Flora Of The Kaz Mountain (Balıkesir, Turkey), Adnan Erdağ, Ahmet Yayintaş
A Contribution To The Moss Flora Of Western Turkey: Moss Flora Of The Kaz Mountain (Balıkesir, Turkey), Adnan Erdağ, Ahmet Yayintaş
Turkish Journal of Botany
In the present study, 484 plant specimens were collected and identified from the region. 139 taxa, belonging to 23 families and 63 genera were found. Brachythecium latifolium Kindb. is recorded as the first time to Turkish flora among the others. In addition 12 taxa are new records for square B6 according to Henderson's (1961) grid system.
Top Senescence In Sternbergia Lutea(L.) Ker-Gawl. Ex Sprengel And Narcissus Tazettal. Subsp. Tazetta, Hamdi̇ Güray Kutbay
Top Senescence In Sternbergia Lutea(L.) Ker-Gawl. Ex Sprengel And Narcissus Tazettal. Subsp. Tazetta, Hamdi̇ Güray Kutbay
Turkish Journal of Botany
Sternbergia lutea (L.) Ker-Gawl. ex Sprengel and Narcissus tazetta L. subsp. tazetta are two autumnal geophytes belonging to Amaryllidaceae. N. tazetta subsp. tazetta consist of some vomitory alkaloids. S. lutea has also important alkaloids too. In this study nitrogen (N), phosphorus (P) and potassium (K) analysis were carried out in two taxa during vegetative and generative growth phases and the results belonging to vegetative and generative growth phases were compared with each other. As a result of these analysis macroelement concentrations are higher during generative growth phase in under ground parts due to "top senescence".
Morphological, Anatomical And Ecological Studies On The Two Turkish Endemic Species Collected From Kaz Dağı (B1 Balıkesir) "Allium Sibthorpianum Schultes & Schultes Fil. And Allium Reuterianum Boiss.", İsmet Uysal
Turkish Journal of Botany
This investigation englightens the morphological, anatomical and ecological characteristics of Kazdağı endemics namely Allium reuterianum Boiss. and Allium sibthorpianum Schultes & Schultes fil. (Liliaceae). A. sibthorpianum occurs in Bursa, Kütahya, Denizli, Isparta and Çanakkale (newly recorded), whereas A. reuterianum is found in Southwest Anatolia, Islands, Manisa, Denizli, Muğla, Isparta and Çanakkale (newly recorded). Root anatomy of A. sibthorpianum and A. reuterianum typically show exodermis and an empty pith. In addition in the scapes of both the species layering in the area between epidermis and cuticle results in its thickening. The leaves in both species are not hairy. Reticulate shaped open …
A New Genus ( Mericarpaeaboiss.) Record From Turkey, Zeki̇ Aytaç, Nezaket Adigüzel
A New Genus ( Mericarpaeaboiss.) Record From Turkey, Zeki̇ Aytaç, Nezaket Adigüzel
Turkish Journal of Botany
Mericarpaea ciliata(Banks & Sol.) Eig ( Rubiaceae) is recorded from Turkey for the first time. It is also new genus record ( MericarpaeaBoiss.) for Turkey.
Check-List Of Additional Taxa To The Supplement Flora Of Turkey Ii, Neri̇man Özhatay, Şükran Kültür, Nevri̇ye Aksoy
Check-List Of Additional Taxa To The Supplement Flora Of Turkey Ii, Neri̇man Özhatay, Şükran Kültür, Nevri̇ye Aksoy
Turkish Journal of Botany
This checklist contains a total of 168 taxa published as additions to the Flora of Turkey. It includes details of taxa neither recorded by P.H.Davis' "Flora of Turkey and the East Aegean Islands" or its Supplement, nor in the first of this series of checklists. The records in this list are based on data given in nearly 100 publications published up to the end of 1998.
Evaluation Of Various Sunflower ( Helianthus Annuus L.) Genotypes For Agrobacterium Tumefaciens-Mediated Gene Transfer, Ekrem Gürel, Kemal Kazan
Evaluation Of Various Sunflower ( Helianthus Annuus L.) Genotypes For Agrobacterium Tumefaciens-Mediated Gene Transfer, Ekrem Gürel, Kemal Kazan
Turkish Journal of Botany
In this work, 10 sunflower ( Helianthus annuus L.) genotypes were evaluated for their suitability for Agrobacterium tumefaciens-mediated gene transfer based on detection of a reported gene expression (GUS). A number of factors including the type of shoot-tip explant (split vs. intact), bacterial strain/binary vector combinations and wounding intact shoot-tips by particle bombardment were examined. Genotypes showed significant differences in their transformation efficiencies ranging from 0.0 to 82.7% GUS positive explants, hybrid genotypes being more responsive to Agrobacterium infection than inbred lines. Use of split shoot-tip explants did not increase the transformation efficiency over intact explants but the AGL-1/pKIWI strain/vector …