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Articles 1561 - 1590 of 1739
Full-Text Articles in Life Sciences
New Floristic Records On Dicotyledones For The Square B9 (Özalp-Van) From Turkey, Fevzi̇ Özgökçe
New Floristic Records On Dicotyledones For The Square B9 (Özalp-Van) From Turkey, Fevzi̇ Özgökçe
Turkish Journal of Botany
No abstract provided.
New Floristic Records On Dicotyledones For The Square B10 (Özalp-Van) From Turkey, Fevzi̇ Özgökçe, Lütfi̇ Behçet
New Floristic Records On Dicotyledones For The Square B10 (Özalp-Van) From Turkey, Fevzi̇ Özgökçe, Lütfi̇ Behçet
Turkish Journal of Botany
No abstract provided.
New Floristic Records For The Square C3 (Seydişehir-Konya, Turkey), Memduh Seri̇n, Murad Aydin Şanda, Fahretti̇n Bati
New Floristic Records For The Square C3 (Seydişehir-Konya, Turkey), Memduh Seri̇n, Murad Aydin Şanda, Fahretti̇n Bati
Turkish Journal of Botany
No abstract provided.
New Floristic Records For The Grid Square B3 Uluborlu - Isparta, Turkey, Gönül Kaynak, Gül Tarimcilar
New Floristic Records For The Grid Square B3 Uluborlu - Isparta, Turkey, Gönül Kaynak, Gül Tarimcilar
Turkish Journal of Botany
No abstract provided.
The Liverwort Flora Of Antarctica (2000), Adnan Erdağ
The Liverwort Flora Of Antarctica (2000), Adnan Erdağ
Turkish Journal of Botany
No abstract provided.
Epipelic And Epilithic Algae Of Değirmendere River (Trabzon-Turkey), Hülya Kara, Bülent Şahi̇n
Epipelic And Epilithic Algae Of Değirmendere River (Trabzon-Turkey), Hülya Kara, Bülent Şahi̇n
Turkish Journal of Botany
The algae of Değirmendere River were investigated in the samples collected from different habitats (epipelic, epilithic) in five stations between October 1998 and September 1999. The flora consisted of 74 taxa belonging to Bacillariophyta (52), Chlorophyta (10), Cyanophyta (9) and Euglenophyta (3). Bacillariophyta was dominant in the algal flora. Aulacosira varians Ag. (Coscinodiscaceae), Amphora ovalis Kütz. (Cymbellaceae), Cocconeis placentula var. euglypta (Ehr.) Cleve (Achnanthaceae), Ceratoneis arcus Kütz. (Fragilariaceae), Cymbella minuta Hilse ex Rabh. (Cymbellaceae), Didymosphenia geminata (Lyngb.) M. Schmidt. (Gomphonemaceae), Navicula odiosa Wallace (Naviculaceae), Surirella ovata Kütz. (Surirellaceae) and Synedra ulna (Nitzsch) Ehr. (Fragilariaceae) were the most common taxa in …
Epipelic And Epilithic Algae Of Dağbaşı Lake (Rize-Turkey), Bülent Şahi̇n
Epipelic And Epilithic Algae Of Dağbaşı Lake (Rize-Turkey), Bülent Şahi̇n
Turkish Journal of Botany
Epipelic and epilithic algae of Dağbaşı lake were studied qualitatively between June and September 1988. The algal flora was found to consist of 103 species, 53 belonging to Bacillariophyta, 31 to Chlorophyta, 15 to Cyanophyta and 4 to Euglenophyta.
The Flora Of Kelkit Valley, Fergan Karaer, Mahmut Kilinç
The Flora Of Kelkit Valley, Fergan Karaer, Mahmut Kilinç
Turkish Journal of Botany
The flora of Kelkit Valley was investigated between 1990 and 1993. In the vegetation period, a total of 2800 plant specimens were collected. At the end of the study, 1316 species and subspecies and 519 genera belonging to 105 families were established. Of these, 132 taxa are endemic to Turkey and the ratio is 10.03%. The rates of taxa which are included in certain phytogeographical regions are as follows: Irano-Turanian 14.75%, Euro-Siberian 12.69% and Mediterranean 11.40%.
New Hieracium L. (Asteraceae) Records For The Flora Of Turkey, Kami̇l Coşkunçelebi̇, Osman Beyazoğlu
New Hieracium L. (Asteraceae) Records For The Flora Of Turkey, Kami̇l Coşkunçelebi̇, Osman Beyazoğlu
Turkish Journal of Botany
Two Hieracium L. (Asteraceae) species from the NE Anatolia are described as a new records for the Flora of Turkey.
Pollen Flora Of Pakistan - Xxviii: Resedaceae, Anjum Perveen, Mohammad Qaiser
Pollen Flora Of Pakistan - Xxviii: Resedaceae, Anjum Perveen, Mohammad Qaiser
Turkish Journal of Botany
The pollen morphology of 4 species belonging to the 3 genera of the family Resedaceae was investigated using a light microscope and scanning microscope. Pollen grains usually radially symmetrical, isopolar, sub-prolate, rarely prolates pheroidal, tricolpate or tricolporate. Tectum reticulate. However, apertural type and pollen shape are the most significant pollen characters for delimiting the genera. On the basis of apertural types 2 distinct pollen types are recognized, namely, I: Tricolpate-type and II: Tricolporate-type.
Using The Green Flagellate Euglena Gracilis Klebs As Physiological Dosimeter: Is A Long-Term Bioassay More Significant Than A Short-Term One?, Roman A. Danilov, Nils C. A. Ekelund
Using The Green Flagellate Euglena Gracilis Klebs As Physiological Dosimeter: Is A Long-Term Bioassay More Significant Than A Short-Term One?, Roman A. Danilov, Nils C. A. Ekelund
Turkish Journal of Botany
The use of short-term tests with E. gracilis Klebs in order to assess toxicity cannot be viewed as absolutely preferable. At least in the case with wastewater from the pulp and paper industry, 7 day-tests could lead to more explanatory and significant results.
A New Record From Turkey: Ranunculus Bulbilliferus Boiss. Et Hoh., Lütfi̇ Behçet
A New Record From Turkey: Ranunculus Bulbilliferus Boiss. Et Hoh., Lütfi̇ Behçet
Turkish Journal of Botany
Ranunculus bulbilliferus Boiss. & Hoh. (Ranunculaceae) is recorded for the first time (B9 Van) for the flora of Turkey.
A Description Of The Vegetation Mosaic Of The Forests Of Yirce And Muratdere (Bilecik-Bursa, Turkey) By Satellite Remote Sensing, Cengi̇z Türe
Turkish Journal of Botany
The aim of this study is to describe the cut-off borders and the structure of vegetation mosaics of existing plant communities in the area, using traditional flora and vegetation methods and satellite remote sensing (Landsat satellite pictures and Geographical Information System (GIS) data). The results indicate that Pinus nigra L. subsp. pallasiana (Lamb.) Holmboe and Fagus orientalis Lipsky plant communities together with Quercus pubescens Willd. and Quercus cerris L. var. cerris could be differentiated. The coverage rates of dominant plant communities in the research area were as follows: Fagus orientalis (92%), Pinus nigra subsp. pallasiana (73%), Quercus pubescens and Quercus …
Insertion Of An Antimicrobial Gene Into Agrobacterium And Its Further Use In Transforming Tobacco, Ekrem Gürel
Insertion Of An Antimicrobial Gene Into Agrobacterium And Its Further Use In Transforming Tobacco, Ekrem Gürel
Turkish Journal of Botany
In the present work, we first describe the transfer of a novel gene, designated 5W, into the LBA4404 Agrobacterium tumefaciens strain using pPCV91 plasmid through a triparental mating system. The 5W gene was recently isolated from macadamia, a native nut tree species of Australia, and has been shown to have an antimicrobial effect against certain fungi in vitro. Secondly, this gene was tranferred into tobacco (Nicotiana tabacum cv. Xhantii) using leaf explants to develop a system which could then be used for transferring this antimicrobial peptide into sunflower cultivars.
Testig Growth Of Elodea Nuttallii (Palnch.) H. St. John With Different Culture Media, Hani̇fe Özbay
Testig Growth Of Elodea Nuttallii (Palnch.) H. St. John With Different Culture Media, Hani̇fe Özbay
Turkish Journal of Botany
The Growth rate of Elodea nuttallii (Planch.) H.St.John was tested in different culture media. Effects of snail was also determined on the growth rate of the plant. E. nuttallii grew well in the canal sediment medium. It also grew well in Steinberg Solution No 1, but not in Steinberg Solution No 2 and JIC:sand media. Overall the snail treatment did not significantly affect the growth rate of E. nuttallii in all tested growth media.
Three New Records For The Marine Algal Flora Of Turkey, Ergün Taşkin, Mehmet Öztürk, Oğuz Kurt, Veysel Aysel
Three New Records For The Marine Algal Flora Of Turkey, Ergün Taşkin, Mehmet Öztürk, Oğuz Kurt, Veysel Aysel
Turkish Journal of Botany
In this study, three Cyanophyceae species new for Turkey are reported. These specimens are Oscillatoria bonnemaisonii (P.Crouan & H.Crouan) P.Crouan & H.Crouan, Microcoleus chthonoplastes Thuret (Oscillatoriales) and Dichothrix spiralis Fritsch (Nostocales). They were determined to be epiphytic on the other algae which were found at the upper-infralittoral zone of the bay of İskenderun (Mediterranean Sea, Turkey).
The Flora Of The Mount Kısır (Kars And Ardahan) And Nearest Environs, Hayretti̇n Ocakverdi̇
The Flora Of The Mount Kısır (Kars And Ardahan) And Nearest Environs, Hayretti̇n Ocakverdi̇
Turkish Journal of Botany
Mount Kısır constitutes the study area; the northern and western parts are within the boundary of the Çıldır district (Ardahan), the southwestern part is within the boundary of Susuz and the eastern and southeastern parts are within the boundary of Arpacay (Kars). This place is the highest part of Northeastern Anatolia (3150 m) and lies within square A9. On Mount Kısır and in its environs, a continental climate prevails. In accordance with the climate, basaltic and chestnut brown soil prevails in the region. The study was carried out in the region in suitable periods between 1996 and 1999. During the …
The Vegetation Of Çimen Mountain (Kahramanmaraş), Ömer Varol, Adem Tatli
The Vegetation Of Çimen Mountain (Kahramanmaraş), Ömer Varol, Adem Tatli
Turkish Journal of Botany
This investigation was carried out between 1995 and 1996 in order to research the vegetation of Çimen Mountain (Kahramanmaraş). The research area is situated at about 20 km to the south-west of Kahramanmaraş. Vegetation studies were carried out according to the Braun-Blanquet method. The authors determined 10 plant associations, all of which are new syntaxa to science, in three different vegetation types. Vegetation tables are given in an appendix.
Determination Of The Nutrition Contents Of The Wild Plants Used As Vegetables In Upper Çoruh Valley, Ertan Yildirim, Ati̇lla Dursun, Meti̇n Turan
Determination Of The Nutrition Contents Of The Wild Plants Used As Vegetables In Upper Çoruh Valley, Ertan Yildirim, Ati̇lla Dursun, Meti̇n Turan
Turkish Journal of Botany
This study was undertaken in order to investigate wild plant species locally consumed as food in Upper Çoruh Valley. The plant species were collected in the late winter and spring, and their taxonomic identifications were made. The plants identified were Plantago minor L., Polygonum bistorta L., Astrodaucus orientalis L., Camelina rumelica Boehm., Lathyrus tuberosus L., Galium rotundifolium L., Chenopodium album L. and Chenopodium album L. Analyses were carried out to evaluate the nutritional values of the plant parts. The highest dry matter, ascorbic acid, nitrogen, protein, phosphorus and potassium contents were determined to be 20.87 g.100 g^{-1} , 161.25 mg.100 …
A Study On The Past And Present Diatom Flora Of Two Alkaline Lakes, Sabri̇ Kilinç, Erdal Ridvan Sivaci
A Study On The Past And Present Diatom Flora Of Two Alkaline Lakes, Sabri̇ Kilinç, Erdal Ridvan Sivaci
Turkish Journal of Botany
The diatom flora of Lakes Hafik and Tödürge was studied qualitatively. Each lake was sampled monthly during two periods. The first period was between April 1986 and June 1987 in Lake Hafik and between August 1990 and October 1990 in Lake Tödürge. The second period was between December 1999 and July 2000 in both lakes. A total of 94 diatom taxa belonging to 25 genera and 53 diatom taxa belonging to 21 genera were identified in Lakes Hafik and Tödürge respectively. Cymbella Agardh, Navicula Bory and Nitzschia Hassall appeared to have the richest genera in terms of number of species …
Pollen Flora Of Pakistan -Xxvii Nyctaginaceae, Anjum Perveen, Mohammad Qaiser
Pollen Flora Of Pakistan -Xxvii Nyctaginaceae, Anjum Perveen, Mohammad Qaiser
Turkish Journal of Botany
The pollen morphology of eight species belonging to two genera, i.e., Boerhavia L., and Commicarpus Standley, of the family Nyctaginaceae, was studied by light microscope and scanning microscope. The family has uniform pollen characters. Pollen grains mostly spheroidal, pantoporate, ± circular, pores small or large, non-operculate, pore plate ± scabrate-spinulose. Tectum tubuliferous spinulose.
The Flora Of The Boyabat (Sinop) Dam And Its Environs, Hasan Korkmaz, Ali̇ Engi̇n
The Flora Of The Boyabat (Sinop) Dam And Its Environs, Hasan Korkmaz, Ali̇ Engi̇n
Turkish Journal of Botany
This study was carried out over three years, from 1990 to 1993. The study area is situated between Kepez gorge and Devrez stream of Kızılırmak valley. In the study area, 1016 species belonging to 441 genera and 99 families were identified. Distribution rates of the species in terms of phytogeographic regions are as follows: 12.40% Euro-Siberian, 3.83% Euxine, 0.68% Hyrcano-Euxine, 11.31% Irano-Turanian and 9.74% Mediterranean. The number of endemic species is 106 and the rate of endemism is 10.43%.
A New Record For The Moss Flora Of Turkey: Tortella Inflexa (Bruch) Brot., Turan Özdemi̇r
A New Record For The Moss Flora Of Turkey: Tortella Inflexa (Bruch) Brot., Turan Özdemi̇r
Turkish Journal of Botany
Tortella inflexa (Bruch) Brot. is recorded from Turkey for the first time. The specimen is collected from Giresun Province.
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.
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.
Pollen Flora Of Pakistan -Xix. Aizoaceae, Anjum Perveen, Mohammad Qaiser
Pollen Flora Of Pakistan -Xix. Aizoaceae, Anjum Perveen, Mohammad Qaiser
Turkish Journal of Botany
The pollen morphology of 7 species belonging to the 7 genera of the family Aizoaceaewas investigated by light microscope and scanning microscope. It is stenopalynous in nature. Pollen grains are usually radially symmetrical, isopolar, oblate-spheroidal to prolate-spheroidal, rarely sub-prolate, tricolpate, colpi long, with tapering ends, colpal membrane granulate. Sexine slightly thinner or thicker then nexine, rarely thicker at the polar reqion than at the equator. Tectum scabrate-punctate or spinulose. On the basis of exine ornamentation 2 distinct pollen types are recognized, namely, the Zaleya pentandra type and the Aizoon canariense type.
The Flora Of The Forest Series Of Yirce-Bürmece-Kömürsu And Muratdere (Bilecik-Bursa, Turkey), Cengi̇z Türe, Süleyman Tokur
The Flora Of The Forest Series Of Yirce-Bürmece-Kömürsu And Muratdere (Bilecik-Bursa, Turkey), Cengi̇z Türe, Süleyman Tokur
Turkish Journal of Botany
A field study was carried out to determine the flora of the forest series of Yirce-Bürmece-Kömürsu and Muratdere (Bilecik-Bursa) during 1992-1995. In terms of species and subspecies, the flora of the area consisted of 505 taxa including 358 species, 90 subspecies and 46 varieties belonging to 299 genera of 79 families. Nine taxa are new for A2 and 56 are new for B2 square. The highest number of taxa were from the families of Asteraceae 10.0% and Fabaceae 9.2%. The phytogeographical distribution was as follows: Euro-Siberian elements 15.7%, Mediterranean elements 10.5%, Irano-Turanian elements 7.3%. The rate of endemism was 5.9% …
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.