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Articles 1 - 30 of 47
Full-Text Articles in Life Sciences
A New Record For The Flora Of Turkey Physalis Angulatal. (Solanaceae), Mehmet Kaya, Ayşegül Yildirim, F. Nezi̇hi̇ Uygur
A New Record For The Flora Of Turkey Physalis Angulatal. (Solanaceae), Mehmet Kaya, Ayşegül Yildirim, F. Nezi̇hi̇ Uygur
Turkish Journal of Botany
A new species, Physalis angulata L. (Solanaceae) is reported for the first time for the flora of Turkey. The specimens were collected from cotton, corn and soybean fields in the Ceyhan, Karataß, Kozan, Yumurtalık (C5) and Osmaniye (C6) districts of Adana, and the Tarsus district of İçel (C5).
Protoplast Isolation In Lupin ( Lupinus Mutabilis Sweet): Determination Of Optimum Explant Sources And Isolation Conditions, Mehmet Babaoğlu
Protoplast Isolation In Lupin ( Lupinus Mutabilis Sweet): Determination Of Optimum Explant Sources And Isolation Conditions, Mehmet Babaoğlu
Turkish Journal of Botany
Effects of cultural factors on the yield, viability and division of protoplasts were investigated in Lupinus mutabilis Sweet containing a high protein content as well as a reasonable oil content which may make this species an alternative crop to soybean in Turkey. Explants from different in vitro seedling parts were evaluated on the suitability of protoplast isolation and viability. Leaf mesophyll was the most suitable tissue as a protoplast source. Pectinases as well as cellulases were essential for the isolation of protoplasts. Nine percent (w/v) mannitol was suitable to stabilise osmotic pressure together with low salt concentrations in washing and …
Germin-Like Oxalate Oxidase Activity Increase In Auxin-Treated Wheat Coleoptiles, Mahmut Çalişkan, Andrew C. Cuming
Germin-Like Oxalate Oxidase Activity Increase In Auxin-Treated Wheat Coleoptiles, Mahmut Çalişkan, Andrew C. Cuming
Turkish Journal of Botany
Oxalic acid or more commonly its salts, oxalates, are widely distributed throughout the plant kingdom. Oxalic acid is generally considered an inert product of metabolism and its accumulation is toxic to tissues. Therefore, the enzymes degrading oxalic acid have received considerable attention. Oxalate oxidase is an oxidoreductase which degrades oxalate into CO_2 and H_2O_2 . Recently, oxalate oxidase was shown to have high amino acid homology with germin proteins and at the same time cereal germin proteins were shown to have oxalate oxidase activity. Germin gene expression was shown to be auxin responsive. It was well demonstrated that coleoptile cells …
Effect Of Some Growth Regulators And Commercial Preparations On The Chlorophyll Content And Mineral Nutrition Of Lycopersicum Esculentum Mill, Meli̇ha Gemi̇ci̇, Avni̇ Güven, A. Kami̇l Yürekli̇, Pervi̇n Katmer
Effect Of Some Growth Regulators And Commercial Preparations On The Chlorophyll Content And Mineral Nutrition Of Lycopersicum Esculentum Mill, Meli̇ha Gemi̇ci̇, Avni̇ Güven, A. Kami̇l Yürekli̇, Pervi̇n Katmer
Turkish Journal of Botany
The effect of some growth regulators and commercial preparations on N, P, K and chlorophyll contents Lycopersicum esculentum Mill. were examined. Tomato seedlings were grown in sand and after four weeks they were transferred to Hoagland hydroponic culture solution. Growth regulators and commercial preparations were applied to these plants twice, one week and three weeks after transferral, at room temperature. 10 or 20 ppm IAA, GA 3, ABA; 20 ppm Berelex and 15 or 30 ppm Cytozyme were pulverized during the applications. After an eight-week experimental period, not only were morphological observations made, but analyses of chlorophyll for primary productivity …
Histology Of Somatic Embryogenesis In Cultured Leaf Explants Of Pistachio(Pistacia Veral), Ahmet Onay
Histology Of Somatic Embryogenesis In Cultured Leaf Explants Of Pistachio(Pistacia Veral), Ahmet Onay
Turkish Journal of Botany
The histology of somatic embryo initiation and development in pistachio ( Pistacia were L.) embryogenic masses (EMS) derived from leaf explants was examined using light microscopy. Explants with somatic embryos at different developmental stages were fixed for histological examination, cut into 10 µm thick sections, stained with hematoxylin-eosin and observed microscopically. The histological examination showed that the two types of cell clusters induced originated from explants and were morphologically different. These results clearly demonstrate that the induction and development of somatic embryos from leaf explants of pistachio were from single epidermal or subepidermal cells.
Seasonal Changes In The Phytoplankton Of The Northeastern Mediterranean(Bay Of Iskenderun), Sevi̇m Polat, Ercan Sarihan, Tufan Koray
Seasonal Changes In The Phytoplankton Of The Northeastern Mediterranean(Bay Of Iskenderun), Sevi̇m Polat, Ercan Sarihan, Tufan Koray
Turkish Journal of Botany
This study was carried out in the northern part of the Bay of Iskenderun in the northeastern Mediterranean during the period 1994-1995. The quantitative and qualitative distribution of phytoplankton, the environmental factors that affect its distribution and the changes in succession over time were investigated. At each of the seven stations, monthly sampling was done from the surface and 10.0 m depth. In spring, the sampling was performed once every two weeks. In addition, the measurements of some physical and chemical parameters i.e. temperature, salinity, (NO^-_3 +NO^-_2 )-N and PO4^-_3 -P were carried out. At the end of the study, …
Weekly Variations In Phytoplankton Structure Of A Harbour In Mersin Bay (North-Eastern Mediterranean), Eli̇f Eker Develi̇, Ahmet Erkan Kideyş
Weekly Variations In Phytoplankton Structure Of A Harbour In Mersin Bay (North-Eastern Mediterranean), Eli̇f Eker Develi̇, Ahmet Erkan Kideyş
Turkish Journal of Botany
Weekly variations in the phytoplankton composition of a harbour in Mersin Bay were studied with two methods: filtration for the assessment of >55 mm phytoplankton from July 1995 to June 1997; and sedimentation for the assessment of all phytoplankton (both>55 \mum and
Pollen Flora Of Pakistan -Xx. Molluginaceae, Anjum Perveen, Mohammad Qaiser
Pollen Flora Of Pakistan -Xx. Molluginaceae, Anjum Perveen, Mohammad Qaiser
Turkish Journal of Botany
The pollen morphology of 3 species belonging to the 2 genera of the Molluginaceae family were investigated using light microscopy and scanning microscopy. It was found to be stenopalynous in nature. The pollen grains are usually radially symmetrical, isopolar, oblate-spheroidal to prolate-spheroidal or sub-prolate, tricolpate. The tectum is scabrate-punctate. On the basis of the shape of the pollen, 2 distinct pollen types were identified, viz., Glinus lotodies type and Mollugo cerviana -type.
Algal Flora Of Lakes Aygir And Balıkli (Trabzon, Turkey), Bülent Şahi̇n
Algal Flora Of Lakes Aygir And Balıkli (Trabzon, Turkey), Bülent Şahi̇n
Turkish Journal of Botany
The algal flora of lakes Aygir and Balıkli were studied qualitatively between June and Septembeer 1996. The flora of Lake Aygır was found to consist of 48 species, 26 belonging to Bacillariophyta, 17 to Chlorophyta, 4 to Cyanophyta and 1 to Euglenophyta. The flora of Lake Balıklı was found to consist of 71 species, 34 belonging to Bacillariophyta, 29 to Chlorophyta, 7 to Cyanophytaand 1 to Euglenophyta. The compositions of the species in the two lakes were similar. The main species of the algal flora of the lakes were members of Desmidiales.
Growth And Proline Content Of Germinating Wheat Genotypes Under Ultraviolet Light, Yavuz Demi̇r
Growth And Proline Content Of Germinating Wheat Genotypes Under Ultraviolet Light, Yavuz Demi̇r
Turkish Journal of Botany
The effect of ultraviolet light on the growth and proline contents of four wheat cultivars ( Triticum aestivum L., cvs. Bezostoja-1, Dogu-88, Turkey-13, Yayla-305) was investigated. Ultraviolet light inhibited the growth of all of the four wheat cultivars and increased the daily proline contents of both the radicle and coleoptile. Ultraviolet light is a stress factor in the growth of plants but the wheat cultivars tested produced proline against this stress. From the results obtained, it is suggested that proline can protect cells against damage induced by ultraviolet radiation.
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 …
An Investigation On Chrozophora Tinctoria (L.) Rafin. Distributed In Westanatolia, Süleyman Başlar
An Investigation On Chrozophora Tinctoria (L.) Rafin. Distributed In Westanatolia, Süleyman Başlar
Turkish Journal of Botany
The morphological characteristics of the root, stem, leaf, flower, seed and fruit of Chrozophora tinctoria (L.) Rafin. (Euphorbiaceae) distributed in West Anatolia were determined, and biometric measurements were taken from samples collected from 42 different localities. This plant is a monoecious, annual herb, 28-63.50 cm. and stellate hairy. Its leaves are alternate and their shapes vary from rombic-ovate to ovate-lanceolate. The leaves are bifacial and amphistomatous. Their stomatas are of the amaryllis and parasitic types. The development of the root, stem, and leaves of the plant were observed when grown under various fertilizer, soil, lime and watering conditions, and their …
Sclerophylly In Fraxinus Angustifolia Vahl. Subsp. Oxycarpa (Bieb. Ex Willd.)Franco & Rocha Afonso And Laurus Nobilis L. And Edaphicrelations Of These Species, Hamdi̇ Güray Kutbay
Sclerophylly In Fraxinus Angustifolia Vahl. Subsp. Oxycarpa (Bieb. Ex Willd.)Franco & Rocha Afonso And Laurus Nobilis L. And Edaphicrelations Of These Species, Hamdi̇ Güray Kutbay
Turkish Journal of Botany
Sclerophylly and foliar nutrient status and interactions between these factors in ash ( Fraxinus angustifolia Vahl. subsp. oxycarpa (Bieb. ex Willd.) Franco & Rocha Afonso) and laurel ( Laurus nobilis L.) species were examined. In addition, correlations between sclerophyll index and leaf and soil parameters were investigated. It was found that there were statistically significant differences between the mid-growing season and the end of the growing season with respect to leaf N % concentration, N/Ca and N/Mg ratios in ash, and with respect to leaf N % concentration and soil K % concentration in laurel. The sclerophyll index was negatively …
The Flora Of Gülümbe Dagi (Bilecik-Turkey)Atila Ocak, Süleyman Tokur, Ati̇la Ocak, Süleyman Tokur
The Flora Of Gülümbe Dagi (Bilecik-Turkey)Atila Ocak, Süleyman Tokur, Ati̇la Ocak, Süleyman Tokur
Turkish Journal of Botany
This paper deals with the floristical characteristics and the taxa of the vascular plants of Gülümbe Dagi. Between the years 1992 and 1995, 1035 plant specimens were collected from the study area. After the identification of these specimens, 456 taxa at specific and subspecific ranks belonging to 74 families were determined. Sixty-three taxa were defined as new records for the A2 square. The largest family was found to be Asteraceae (52 species) and the second largest was Fabaceae (51 species). The largest genera were AlyssumL. and Salvia L. (8 species each). The phytogeographical spectrum of the species was found to …
The Effects Of Temperature And Gibberellic Acid On Germination Of Eranthishyemalis (L.) Salisb. Seeds, Ruki̇ye Tipirdamaz, Ayşe Ni̇hal Gömürgen
The Effects Of Temperature And Gibberellic Acid On Germination Of Eranthishyemalis (L.) Salisb. Seeds, Ruki̇ye Tipirdamaz, Ayşe Ni̇hal Gömürgen
Turkish Journal of Botany
In this study, the effects of different temperatures and exogenous gibberellic acid (GA 3) treatments on the germination of Eranthis hyemalis (L.) Salisb. seeds were studied. E. hyemalis seeds were exposed to the germination process at +4 °C and +23 °C in distilled water (control) and 0.10 , 5 and 10 mM concentrations of gibberellic acid (GA 3). While no germination was observed at +23 °C either in the control group or in the germination dishes where GA 3 was applied, at +4 °C, both in the control group (except for the 60th and 75th days) and with the all …
Pollen Morphology Of Wild Vitis Sylvestris Gmelin (Vitaceae)Özden Inceoğlu, N. Münevver Pinar, Özden İnceoğlu, N. Münevver Pinar, Emel Oybak Dönmez
Pollen Morphology Of Wild Vitis Sylvestris Gmelin (Vitaceae)Özden Inceoğlu, N. Münevver Pinar, Özden İnceoğlu, N. Münevver Pinar, Emel Oybak Dönmez
Turkish Journal of Botany
Pollen grains from two samples of Vitis sylvestrisGmelin (Vitaceae) were examined using a light microscope and scanning and transmission electron microscopes. The pollen grains were radially symmetrical, isopolar, 3-colporate, prolate-spheroidal and sub-prolate; amb triangular. Exine sculpture at the mesocolpia was obscurely reticulate under LM, foveolate-rugulate at the mesocolpia and reticulate towards the poles and at the poles in SEM, psilate along the ectoapertures (colpi) margins as observed with both LM and SEM. The tectum was subtectate. The sexine was slightly thinner than the nexine. Nexine 1 was much thicker than Nexine 2. The ectoapertures were narrow and long and with …
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.
The Phenolic Chemistry Of Lappula Squarrosa(Retz.) Dumort., L. Barbata (Bieb.) Gurke And L. Microcarpa(Ledeb.) Gurke Species, Zeki̇ Apaydin, Mahmut Bi̇lgener
The Phenolic Chemistry Of Lappula Squarrosa(Retz.) Dumort., L. Barbata (Bieb.) Gurke And L. Microcarpa(Ledeb.) Gurke Species, Zeki̇ Apaydin, Mahmut Bi̇lgener
Turkish Journal of Botany
The aim of this research was to study the phenolic chemistry of Lappula squarrosa (Retz.) Dumort., L. barbata (Bieb.) Gurke and L. microcarpa (Ledeb.) Gurke. The specimens were sorted into three groups according to their general morphological features. Nine morphological characters were determined in each group and measured. According to FisherÕs test, four of these characters which belong to fruit morphology had a difference of 95 %. Each group was diagnosed and were found to belong to L. squarrosa, L. barbata and L. microcarpa. The specimens were hydrolyzed in hydrochloric acid and were extracted with isoamyl alcohol, ethanol and ethylacetate. …
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. …
Galeropsidaceae, A New Family For The Mycobiota Of Turkey, Gürsel Hatat, Aysun Uzun Pekşen
Galeropsidaceae, A New Family For The Mycobiota Of Turkey, Gürsel Hatat, Aysun Uzun Pekşen
Turkish Journal of Botany
The Galeropsidaceae, an interesting basidiomycete family is reported for the first time from Turkey. Galeropsis lateritia (Watling) Moreno, Heykoop & Illana belonging to this family was found in the Samsun province.
A New Record ( Heliotropium Ovalifolium Forssk.) From Southern Turkey, Hayri̇ Duman, Haşi̇m Altinözlü
A New Record ( Heliotropium Ovalifolium Forssk.) From Southern Turkey, Hayri̇ Duman, Haşi̇m Altinözlü
Turkish Journal of Botany
Heliotropifolium ovalifolium Forssk. ( Boraginaceae) is reported for the first time for the ora of Turkey, from C5 Adana. Its affinities, ecology and conservation status in Turkey are detailed.
Ecological Wood Anatomy Of Turkish Rhododendron L. (Ericaceae). Intraspecific Variation, Nesi̇me Merev, Hakki Yavuz
Ecological Wood Anatomy Of Turkish Rhododendron L. (Ericaceae). Intraspecific Variation, Nesi̇me Merev, Hakki Yavuz
Turkish Journal of Botany
The intraspecific relationships of selected wood anatomical characters such as altitude, stem diameter, stem age and average annual ring width were investigated in five different Turkish Rhododendron L. species. Rhododendron luteumSweet. grows at an altitude of 110 to 2230 m, R. ungerniiTrautv. 900 to 2020 m, R. smirnoviiTrautv. 1600 to 2230 m, R. caucasicumPallas 1900 to 3100 m, and R. ponticumL. from sea level to 2230 m in the Eastern Black Sea Region. Although the degree of significance varies between species, correlation and multiple regression analysis indicated a significant correlation between wood anatomical characters and non-anatomical factors.
A Neglected Lichen Collection From Turkey: Berkhamsted School Expedition 1971, Volker John, Mark R. D. Seaward, Jeff W. Beatty
A Neglected Lichen Collection From Turkey: Berkhamsted School Expedition 1971, Volker John, Mark R. D. Seaward, Jeff W. Beatty
Turkish Journal of Botany
Discovery of the unpublished report of the Berkhamsted School lichenological expedition to Turkey in 1971 and a reappraisal of the complementary (almost complete) collections in The Natural History Museum, London (BM), have added considerably to our knowledge of the Turkish lichen flora. In all, 171 taxa are listed, of which 21 species are new to Turkey and 220 records are new to one ore more of the 11 provinces; many additional records pre-date those made as a result of the upsurge of interest in the Turkish lichen flora over the past decade.
The Moss Flora Of Çankırı-Eldivan Mountain, Tamer Keçeli̇, Barbaros Çeti̇n
The Moss Flora Of Çankırı-Eldivan Mountain, Tamer Keçeli̇, Barbaros Çeti̇n
Turkish Journal of Botany
In this study, 54 taxa out of 145 specimens were identified by the authors. These belong to 14 families and 25 genera of bryophytes. Of these, 15 taxa are new for the A2 grid-square adopted by Henderson (1961).
Three New Records For The Turkish Mycoflora, Ertuğrul Sesli̇, İbrahi̇m Türkekul
Three New Records For The Turkish Mycoflora, Ertuğrul Sesli̇, İbrahi̇m Türkekul
Turkish Journal of Botany
Three noteworthy fungi from Ordu and Tokat are described and illustrated. One of them, Peziza applanata(Hedw.: Fr.) Alb. & Schwein is pezizoid; one, Sebacina epigaea (Berk. & Broome) Neuh., is tremelloid; and one, Gomphus stereoides Corner is cantharelloid.
Three Grasses New To Turkey, Hildemar Scholz, Andrew Byfield
Three Grasses New To Turkey, Hildemar Scholz, Andrew Byfield
Turkish Journal of Botany
Studies on herbarium material of grasses recently collected in Turkey revealed the existence of three taxa hitherto not reported from this country: Bromus tomentellus Boiss. subsp. nivalis (Bornm.) H. Scholz & Byfield, subsp. et stat. nov., Microstegium vimineum (Trin.) A. Camus as a probably introduced plant, and Poa asiae-minoris H. Scholz & Byfield, sp. nova, described here as a species new to science.
The Genus Tulostoma Pers.: Pers. (Gasteromycetes) In Turkey, Ertuğrul Sesli̇, Jorge E. Wright, İbrahi̇m Türkekul
The Genus Tulostoma Pers.: Pers. (Gasteromycetes) In Turkey, Ertuğrul Sesli̇, Jorge E. Wright, İbrahi̇m Türkekul
Turkish Journal of Botany
Three species of Tulostoma are recorded for the Turkish mycoflora, namely, T. pluriosteum Long & Ahmad, T. squamosum Gmelin: Pers. and T. wightii Berk. Tulostoma brumale Pers.: Pers. is already known from this country. Photomicrographs of the spores under SEM are also given.
Morphological And Anatomical Studies On Cyclotrichium Origanifolium(Labill.) Manden. & Scheng. ( Labiatae), Ayla Kaya, Kemal H. C. Başer, Fati̇h Satil, Gülendam Tümen
Morphological And Anatomical Studies On Cyclotrichium Origanifolium(Labill.) Manden. & Scheng. ( Labiatae), Ayla Kaya, Kemal H. C. Başer, Fati̇h Satil, Gülendam Tümen
Turkish Journal of Botany
Morphological and anatomical features of Cyclotrichium origanifolium (Labill.) Manden. & Scheng. (Labiatae) collected from various localities in Turkey are described and discussed. Anatomical studies include transverse sections of stems and leaves with illustrations. Although some morphological variation was observed there was no anatomical variation in the wide range of specimens studied, from different areas of Turkey.
Robinia Pseudo-Acacia L. As A Posssible Biomonitor Of Heavy Metal Pollution In Kayseri, Ahmet Aksoy, Uğur Şahi̇n, Fati̇h Duman
Robinia Pseudo-Acacia L. As A Posssible Biomonitor Of Heavy Metal Pollution In Kayseri, Ahmet Aksoy, Uğur Şahi̇n, Fati̇h Duman
Turkish Journal of Botany
The leaves of Robinia pseudo-acacia L. (Fabaceae) were tested as a possible biomonitor of heavy metal pollution in Kayseri. Concentrations of Pb, Cd, Cu and Zn were determined in unwashed and washed leaves and soils collected from a wide range of sites with different degrees of metal pollution. 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. R. pseudo-acacia was found to be a useful biomonitor of the heavy metals investigated.