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Articles 1201 - 1230 of 1739

Full-Text Articles in Life Sciences

Isatis L. (Brassicaceae) In Iran: A New Record And A New Synonym, Hamid Moazzeni, Shahin Zarre, Hosein Maroofi Jan 2008

Isatis L. (Brassicaceae) In Iran: A New Record And A New Synonym, Hamid Moazzeni, Shahin Zarre, Hosein Maroofi

Turkish Journal of Botany

Isatis takhtajanii Avestisian is reported as a new record from western Iran. It is close to I. tinctoria L.; a list of diagnostic differences is provided. A more complete description of I. takhtajanii and a distribution map are given. Isatis koeiei Rech.f. is reduced to a synonym of I. raphanifolia Boiss. Iranian records of I. spectabilis Davis and I. tinctoria subsp. tomentella (Boiss.) Davis are considered to be misidentifications of I. kotschyana Boiss. & Hohen.


The Effect Of Aluminium On Oxidative Stress-Related Enzyme Activity In Two Clover Species, Fayza A. Faheed Jan 2008

The Effect Of Aluminium On Oxidative Stress-Related Enzyme Activity In Two Clover Species, Fayza A. Faheed

Turkish Journal of Botany

The impact of aluminium (Al) stress on the production of hydrogen peroxide and on the activity of antioxidant enzymes involved in oxidative metabolism, such as ascorbate peroxidase (APX), peroxidase (POD), and catalase (CAT), were studied in seedlings of 2 clover species (Trifolium alexandrinum L. and Medicago sativa L.). A uniform decrease in germination and root elongation were detected as the primary signs of Al injury. A significant increase in hydrogen peroxide content was also related to an increase in Al uptake by the roots of the 2 clover species, especially at relatively highly toxic Al concentrations (2-6 mM) for 7 …


The Flora Of Kalabak Basin (Eskişehir, Turkey), Ati̇la Ocak, Gürbüz Hüner, Ebru Ataşlar Jan 2008

The Flora Of Kalabak Basin (Eskişehir, Turkey), Ati̇la Ocak, Gürbüz Hüner, Ebru Ataşlar

Turkish Journal of Botany

The present study is concerned with the flora of the Kalabak Basin, an area lying to the south-west of the city of Eskişehir that supplies Eskişehir with drinking water. As a result of our evaluation of the plant specimens collected over 3 years (2001 to 2003), 71 families, as well as 575 taxa belonging to 307 genera, were determined to occur in the study area (569 species, 3 subspecies, and 3 varieties). Two of these taxa belong to Pteridophytes, 5 belong to Gymnosperms, and 568 belong to Angiosperms (488 Dicotyledons, 80 Monocotyledons) subdivisions. The largest families are Asteraceae (80), Fabaceae …


Plant Health In Private Urban Gardens, Stephan Helfer Jan 2008

Plant Health In Private Urban Gardens, Stephan Helfer

Turkish Journal of Botany

Private garden plots present a vast area for growing plants for food or enjoyment. The Royal Botanic Garden Edinburgh provides a plant identification and advisory service to the public. This includes a service to advise on plant health problems, which is not advertised. In the past 17 years a moderate number of individuals made use of this service, with an average of 67 enquiries and some 100 specimens per year. Relevant data from the enquiries were entered into a database and analysed. The majority of enquiries concerned tree problems, followed by ornamental and fruit plant problems. Fungi ranked highest, with …


Genetic Differentiation Of Abies Equi-Trojani (Asch. & Sint. Ex Boiss) Mattf. Populations From Kazdağı, Turkey And The Genetic Relationship Between Turkish Firs Belonging To The Abies Nordmanniana Spach Complex, Zeki̇ Kaya, A. Skaggs, D. B. Neale Jan 2008

Genetic Differentiation Of Abies Equi-Trojani (Asch. & Sint. Ex Boiss) Mattf. Populations From Kazdağı, Turkey And The Genetic Relationship Between Turkish Firs Belonging To The Abies Nordmanniana Spach Complex, Zeki̇ Kaya, A. Skaggs, D. B. Neale

Turkish Journal of Botany

The present study aimed to test the utility of RAPD (randomly amplified polymorphic DNA) and cpSSR (simple sequence repeats) markers for in situ gene conservation programs for fir species, as well as for determining the genetic similarities between the Abies nordmanniana Spach species complex (A. nordmanniana, A. bornmuelleriana Matff., A. equi-trojani (Asch. & Sint. ex Boiss) Mattf.) and between populations of A. equi-trojani, which is a narrow-endemic to Turkey. For this purpose, DNA was extracted and pooled from 15 seed megagametophytes (megs) of the Ortaköy population of A. nordmanniana and the Muratdere population of A. bornmuelleriana species, and from two …


A New Species Of Silene L. (Caryophyllaceae) From South Anatolia, Turkey, Yavuz Bağci Jan 2008

A New Species Of Silene L. (Caryophyllaceae) From South Anatolia, Turkey, Yavuz Bağci

Turkish Journal of Botany

Silene duralii Y. Bağcı sp. nov. from Ermenek-Kazancı (C4: Karaman province) is described and illustrated. It is closely related to S. capillipes Boiss. & Heldr., from which it differs mainly in its hairiness, leaves, and floral features. Diagnostic morphological characters are discussed and the diagnostic key for related Silene L. species, which are widespread in Turkey, is reorganized. The geographical distribution of the new species and other related species were mapped. Notes are also presented on its ecology, and biogeographical and conservation status. Chromosome count for S. duralii was 2n = 24. In addition, the seed coat surface of S. …


Comparative Morphological, Anatomical, And Palynological Studies On The Genus Stachys L. Sect. Ambleia Bentham (Lamiaceae) Species In Turkey, Muhi̇tti̇n Di̇nç, Meryem Öztürk Jan 2008

Comparative Morphological, Anatomical, And Palynological Studies On The Genus Stachys L. Sect. Ambleia Bentham (Lamiaceae) Species In Turkey, Muhi̇tti̇n Di̇nç, Meryem Öztürk

Turkish Journal of Botany

In this study, comparative morphological, anatomical and palynological studies of Stachys L. sect. Ambleia Bentham species (Lamiaceae) in Turkey are carried out on the plants collected from their type localities. These species are Stachys cydni Kotschy ex Gemici & Leblebici and S. yildirimlii M. Dinç, which are highly local endemics. Morphologically, micromorphological features of the trichomes are studied. Trichome morphology appears to have a taxonomic value with respect to the results. The anatomical studies on cross-sections of stems, leaves, and surface sections of leaves are presented. According to the anatomical comparison between the 2 species, the pith structure of the …


The Effects Of Ultraviolet Radiation On Some Antioxidant Compounds And Enzymes In Capsicum Annuum L., Kobra Mahdavian, M. Ghorbanli, Khosrow Manochehri Kalantari Jan 2008

The Effects Of Ultraviolet Radiation On Some Antioxidant Compounds And Enzymes In Capsicum Annuum L., Kobra Mahdavian, M. Ghorbanli, Khosrow Manochehri Kalantari

Turkish Journal of Botany

Plants have evolved mechanisms to avoid and repair UV radiation damage; it is not surprising that photomorphogenic responses to UV-B and UV-C are often assumed to be adaptations to harmful radiation. Free radicals generated by UV are likely to be involved in the induction of antioxidant defence system. In this study plants were grown for 5 weeks in controlled conditions. Plants were grown in vermiculite medium before applying the UV treatments, and irrigated daily by Hoagland solution for 5 weeks. After 5 weeks, plants were exposed to UV-A (320-390 nm), UV-B (312 nm), and UV-C (254 nm) irradiation with a …


Vascular Flora Of Forest Vegetation In Altındere Valley (Maçka-Trabzon), Alper Uzun, Sali̇h Terzi̇oğlu Jan 2008

Vascular Flora Of Forest Vegetation In Altındere Valley (Maçka-Trabzon), Alper Uzun, Sali̇h Terzi̇oğlu

Turkish Journal of Botany

The vascular flora of forest vegetation in Altındere Valley (Maçka-Trabzon) was investigated. The study was conducted between 2001 and 2002, during which time 1200 plant samples were collected. In all, 383 vascular taxa belonging to 246 genera and 84 families were identified. The richest family was Asteraceae (35, 9.1%), followed by Lamiaceae (27, 7.0%) and Fabaceae (23, 6.0%). Additionally, the richest genus was Campanula L. (7, 1.82%), followed by Trifolium L. (6, 1.56%) and Acer L. (6, 1.56%). The phytogeographical regions of 209 (54.56%) taxa were determined. The distribution of taxa within the phytogeographical regions was as follows: Euro-Siberian elements …


Heavy Metal Pollution In The Boatin Reserve (Bulgaria), Georgi Borisov Angelov Jan 2008

Heavy Metal Pollution In The Boatin Reserve (Bulgaria), Georgi Borisov Angelov

Turkish Journal of Botany

Background concentrations of the heavy metals Mn, Ni, Cd, Co, Zn, Cu, and Pb in the soils and plant monitors of the Boatin Reserve were determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). Surface soil layers of the Boatin Reserve were polluted with Cu, as its concentration exceeded both the national legal standards and the content of Cu in non-polluted areas. Analysis of heavy metals accumulation in all studied plant monitors indicated that the content of Cu, Pb, and Zn exceeded their concentration in non-polluted areas. It may be concluded that the heavy metals Cu, Pb, and Zn are …


Physicochemical Properties And Fungitoxicity Of The Essential Oil Of Citrus Medica L. Against Groundnut Storage Fungi, Emmanuel Peter Essien, Joseph Peter Essien, Basil Nse Ita, Godwin Asukwo Ebong Jan 2008

Physicochemical Properties And Fungitoxicity Of The Essential Oil Of Citrus Medica L. Against Groundnut Storage Fungi, Emmanuel Peter Essien, Joseph Peter Essien, Basil Nse Ita, Godwin Asukwo Ebong

Turkish Journal of Botany

The in vitro antifungal effect of the essential oil of Citrus medica L. on storage fungi of Arachis hypogea L. stored for 6 months was evaluated using the disc diffusion agar method. The oil exhibited a wide spectrum of fungitoxicity, inhibiting all 14 fungus species tested. Thus, the oil can be exploited as a fumigant against storage fungi for the preservation of stored legume seeds due to its wide range of activity, non-phytotoxicity, and long-term persistence of fungitoxicity.


Three New Macrofungi Records From Turkey, Hakan Alli, Azi̇z Türkoğlu, Mustafa Işiloğlu Jan 2008

Three New Macrofungi Records From Turkey, Hakan Alli, Azi̇z Türkoğlu, Mustafa Işiloğlu

Turkish Journal of Botany

This study is based on macrofungal specimens collected from Buldan district (Denizli) in 2006. As a result of field and laboratory studies, 3 new records of macrofungi species were determined for Turkey. These are Otidea bufonia (Pers.) Boud., Hebeloma cavipes Huijsman, and Russula nauseosa (Pers.) Fr.


Cynoglossum Vanense Sutor´Y (Boraginaceae): New For The Flora Of Iraq, Karel Sutory Jan 2008

Cynoglossum Vanense Sutor´Y (Boraginaceae): New For The Flora Of Iraq, Karel Sutory

Turkish Journal of Botany

The first record of Cynoglossum vanense Sutor´y outside the territory of Turkey (in north-east Iraq) is reported.


Anatomical Findings Of The Genus Galium L. (Rubiacaeae) In Egypt And Their Systematic Implications, Kadry N. Abdel-Khalik, Monier M. Abd El-Ghani, Ahmed A. Elkordy Jan 2008

Anatomical Findings Of The Genus Galium L. (Rubiacaeae) In Egypt And Their Systematic Implications, Kadry N. Abdel-Khalik, Monier M. Abd El-Ghani, Ahmed A. Elkordy

Turkish Journal of Botany

Transverse stem sections of 11 species and 2 subspecies of the genus Galium L. from Egypt were studied by light microscopy. Epidermal cell shape, cortex, xylem, and pith were of good taxonomic value between the taxa. Four types of stem shape were discerned in the transverse sections. The shape of epidermal cells can be used to distinguish between subspecies of Galium setaceum Lam. The cortex varied in size from wide to very narrow. The pith was wide or narrow, and solid or hollow, and was useful for classifying species into groups. A key for the identification of the investigated taxa …


Biogeography Of South-West Asian Bryophytes – With Special Emphasis On The Tropical Element, Harald Kürschner Jan 2008

Biogeography Of South-West Asian Bryophytes – With Special Emphasis On The Tropical Element, Harald Kürschner

Turkish Journal of Botany

The recent bryophyte flora of South-West Asia is heterogeneous and consists of 6 floral elements [(Sub)cosmopolitan taxa, northern taxa, xerotherm-Pangaean taxa, circum-Tethyan taxa, tropical taxa, and endemics of various origins] that are derived from the different Pangaean ancestral floral stocks. Analysis of the flora and vegetation indicates that there is a very strong tropical - and especially palaeotropical and Afromontane - influence in the bryophyte flora of the area. Altogether, more than 95 taxa, or nearly 10% of South-West Asia´s total known bryoflora, are of xero-tropical origin. They concentrate mainly in the escarpment mountains of the Arabian Peninsula and Socotra …


Conservation In Developing Countries, Shahina A. Ghazanfar Jan 2008

Conservation In Developing Countries, Shahina A. Ghazanfar

Turkish Journal of Botany

The Convention on Biological Diversity (CBD) set a number of targets to work towards by 2010 in order to aid conserve the world´s biodiversity. Several countries are now aiming at ex-situ and in-situ programmes for the protection and conservation of plant species through the Global Strategy for Plant Conservation targets (GSPC). Is it possible to achieve these targets in rapidly developing countries where the usage of land for urban expansion and agriculture to support basic human needs holds priority? How can conservation and development be sustainable? I take examples from a rapidly developing country in the Arabian Peninsula to show …


Paris Quadrifolia L. (Liliaceae): A New Record For The Flora Of Turkey, Sali̇h Terzi̇oğlu, Kami̇l Coşkunçelebi̇, Emi̇n Zeki̇ Başkent Jan 2008

Paris Quadrifolia L. (Liliaceae): A New Record For The Flora Of Turkey, Sali̇h Terzi̇oğlu, Kami̇l Coşkunçelebi̇, Emi̇n Zeki̇ Başkent

Turkish Journal of Botany

Paris quadrifolia L. (Liliaceae) was collected from Northeast Anatolia (A9 Ardahan). It is reported for the first time from Turkey. Line drawings, diagnostic characters and a distribution map of Paris L. species of Turkey are presented.


New Alien Species For The Flora Of Romania: Bidens Bipinnata L. (Asteraceae), Culita Sirbu, Adrian Oprea Jan 2008

New Alien Species For The Flora Of Romania: Bidens Bipinnata L. (Asteraceae), Culita Sirbu, Adrian Oprea

Turkish Journal of Botany

This paper presents an alien plant species that has recently migrated into Romania, namely Bidens bipinnata L. For this species, the following information is provided: occurrence in Romania, a short botanical description, general distribution, way of migration, and general aspects regarding its biology, ecology, and invasive character.


A New Species Of Gagea Salisb. (Liliaceae) From Sivas (Central Anatolia, Turkey), Ergi̇n Hamzaoğlu, Ümi̇t Budak, Ahmet Aksoy Jan 2008

A New Species Of Gagea Salisb. (Liliaceae) From Sivas (Central Anatolia, Turkey), Ergi̇n Hamzaoğlu, Ümi̇t Budak, Ahmet Aksoy

Turkish Journal of Botany

Gagea sivasica Hamzaoğlu (Liliaceae) is described as a new species from Sivas province (Central Anatolia, Turkey). A Latin diagnosis, a taxonomic description, an illustration of the new species, and some comments on geographical distribution and its affinity to Gagea chlorantha Schult.f. are given.


Two New Myxomycetes Records For The Myxobiota Of Turkey, Başaran Dülger Jan 2008

Two New Myxomycetes Records For The Myxobiota Of Turkey, Başaran Dülger

Turkish Journal of Botany

Badhamia gracilis (T.Macbr.) T.Macbr. and Diderma crustaceum Peck are recorded for the first time from Turkey.


Herbaceous Plant Cover Establishment In A Barren Materials Quarry, Nikolaos Arambatzis, Kitikidou Kyriaki Jan 2008

Herbaceous Plant Cover Establishment In A Barren Materials Quarry, Nikolaos Arambatzis, Kitikidou Kyriaki

Turkish Journal of Botany

The ability to establish cover using grass and legume species without any soil preparation was studied in a barren materials quarry. The biodiversity indexes (Simpson) during the growing season as well as the vegetation cover and composition were measured. The results showed that the established species had a satisfactory cover (up to 87.5%). This means that we can achieve significant soil rehabilitation after mining using herbaceous plant cover and reduce the cost of rehabilitation by cutting the expenses of soil preparation.


The Geophytic Flora Of Şanlıurfa Province, Turkey, İsmai̇l Eker, Mehmet Koyuncu, Hasan Akan Jan 2008

The Geophytic Flora Of Şanlıurfa Province, Turkey, İsmai̇l Eker, Mehmet Koyuncu, Hasan Akan

Turkish Journal of Botany

This study was carried out between 2001 and 2004 to determine the geophytic flora of Şanlıurfa, located within C6, C7, and C8 of the grid system in Turkey. In all, 789 plant specimens that consisted of 104 taxa belonging to 13 families and 30 genera were gathered from the investigation area. Of all the collected specimens, 19 taxa were new records for C6, C7, and C8, and 11 taxa were endemic to Turkey. Scilla mesopotamica Speta, which was first collected from Şanlıurfa-Halfeti in 1888 by Sintenis and was considered a missing species, was rediscovered after 116 years during this study. …


Studies On The Rhizosphere Mycoflora Of Mangroves, Marium Tariq, Shahnaz Dawar, Fatima S. Mehdi Jan 2008

Studies On The Rhizosphere Mycoflora Of Mangroves, Marium Tariq, Shahnaz Dawar, Fatima S. Mehdi

Turkish Journal of Botany

Rhizosphere soil of mangrove plants (Avicennia marina, Rhizophora mucronata, Aegiceras corniculatum, and Ceriops tagal) was collected from coastal areas. Almost all samples showed a sandy to sandy loam texture. pH of the soil samples ranged from 7 to 10 and water content ranged from 8% to 9%. In all, 18 species of fungi belonging to 11 genera were isolated from the rhizosphere soil of all the mangrove species by direct plating method, whereas 20 fungal species belonging to 11 genera were isolated by serial dilution. Results showed that the greatest number of fungi was isolated by serial dilution. The maximum …


Carbon Mineralization Of Ceratonia Siliqua L. Soils Under Different Temperature And Humidity Conditions, Emel Zengi̇n, Hüsni̇ye Aka Sağliker, Cengi̇z Darici Jan 2008

Carbon Mineralization Of Ceratonia Siliqua L. Soils Under Different Temperature And Humidity Conditions, Emel Zengi̇n, Hüsni̇ye Aka Sağliker, Cengi̇z Darici

Turkish Journal of Botany

The aim of this study was to determine how carbon (C) mineralization of carob (Ceratonia siliqua L., Fabaceae) soils are affected by different temperatures (23 °C and 28 °C) and humidity [field capacity (FC), 80% and 60% of their field capacity] conditions in the laboratory. The carob soils were taken from Çukurova University campus in the eastern Mediterranean region of Turkey. C mineralization of all soils was determined using CO_{2} respiration method. The microbial activity increased together with temperature increases. The microbial activity in the soils humidified at the field capacity and 60% of it was statistically lower compared to …


The Flora Of Balıkdamı Wetland And Its Surroundings (Sivrihisar, Eskişehir - Turkey), Onur Koyuncu, Ebru Ataşlar, Süleyman Tokur, Meltem Erdi̇r Erten, Murat Ardiç Jan 2008

The Flora Of Balıkdamı Wetland And Its Surroundings (Sivrihisar, Eskişehir - Turkey), Onur Koyuncu, Ebru Ataşlar, Süleyman Tokur, Meltem Erdi̇r Erten, Murat Ardiç

Turkish Journal of Botany

The present study involves the flora of Balıkdamı Wetland and its surroundings in Sivrihisar, Eskişehir, Turkey. This 2-year study (2002-2003) examined the plant samples collected in this region and determined that there are 51 families, as well as 250 taxa belonging to 173 genera (247 species, 1 subspecies, and 2 varieties). All of these taxa belong to the Angiosperms (201 Dicotyledons, 49 Monocotyledons) subdivision. The largest families are Brassicaceae (31), Poaceae (29), and Fabaceae (25) in terms of the number of species and subspecies included. Genera represented by the highest number of species are Alyssum L. (5), Centaurea L. (5), …


A New Record For Turkey: Malcolmia Exacoides (Dc.) Spreng. (Brassicaceae), Fevzi̇ Özgökçe, Murat Ünal Jan 2007

A New Record For Turkey: Malcolmia Exacoides (Dc.) Spreng. (Brassicaceae), Fevzi̇ Özgökçe, Murat Ünal

Turkish Journal of Botany

Malcolmia exacoides (DC.) Spreng. (Brassicaceae) is recorded for the first time (C9 Siirt) for the flora of Turkey. The diagnostic characters of M. exacoides are given and its ecology and conservation status are discussed.


Solanum Sisymbriifolium Lam. (Solanaceae): A New Record For Turkey, Fergan Karaer, Hamdi̇ Güray Kutbay Jan 2007

Solanum Sisymbriifolium Lam. (Solanaceae): A New Record For Turkey, Fergan Karaer, Hamdi̇ Güray Kutbay

Turkish Journal of Botany

Solanum sisymbriifolium Lam. (Solanacaeae) is reported as a new record for Turkish flora and an illustration of it is given.


The Influence Of Certain Physical And Chemical Variables On The Seasonal Dynamics Of Phytoplankton Assemblages Of A Source Inlet And The Outlet Of The Shallow Hypertrophic Lake Manyas, Turkey, Kemal Çeli̇k, Tuğba Ongun Jan 2007

The Influence Of Certain Physical And Chemical Variables On The Seasonal Dynamics Of Phytoplankton Assemblages Of A Source Inlet And The Outlet Of The Shallow Hypertrophic Lake Manyas, Turkey, Kemal Çeli̇k, Tuğba Ongun

Turkish Journal of Botany

The relationships between water discharge, temperature, pH, conductivity, turbidity, nitrate, ammonium, phosphate and the seasonal dynamics of phytoplankton assemblages of one of the inlets, which is a source of waste for the lake, and the sole outlet of the shallow hypertrophic Lake Manyas, Turkey, were studied from January 2003 to August 2005. Conductivity, ammonium, nitrate, and phosphate concentrations were higher at the inlet than at the outlet. Diatoms and cyanobacteria were the dominant phytoplankton groups at both stations. Achnantes microcephala (Kütz.) Cleve was dominant throughout the year and Microcystis aeruginosa Kütz. was dominant in summer at both stations. Planktothrix rubescens …


Studies On The Hornworts And Liverworts Flora Of Antalya, Hati̇ce Özenoğlu Ki̇remi̇t, Atakan Sukatar, İsa Gökler Jan 2007

Studies On The Hornworts And Liverworts Flora Of Antalya, Hati̇ce Özenoğlu Ki̇remi̇t, Atakan Sukatar, İsa Gökler

Turkish Journal of Botany

This study includes a list of hornwort and liverwort flora of Antalya province. It is composed of 2 species belonging to a family of the class Anthocerotopsida and 35 species belonging to 23 families of the class Marchantiopsida of the division Bryophyta. For the C12 grid square of Turkey, 14 liverworts are new records.


Combining Ability Analysis Of Yield And Yield Components In Tomato (Lycopersicum Esculentum Mill.), Mohammad Mofidul Hannan, Manosh Kumar Biswas, Mohammad Bulbul Ahmed, Monzur Hossain, Rafiul Islam Jan 2007

Combining Ability Analysis Of Yield And Yield Components In Tomato (Lycopersicum Esculentum Mill.), Mohammad Mofidul Hannan, Manosh Kumar Biswas, Mohammad Bulbul Ahmed, Monzur Hossain, Rafiul Islam

Turkish Journal of Botany

The nature of the inheritance of plant height at 60 days, number of flowers per cluster, number of fruits per plant, fruit weight per plant, and number of seeds per fruit was studied from a 10-parent diallel cross of Lycopersicum esculentum Mill. Due to their high general combining ability effects, Pusharubi, Bari-4, and Dynasagor parents were suggested for future hybridisation programmes. For yield, the crosses Deshy x Ratan, Deshy x Epoch, Dynasagor x Ratan, Bari-4 x Pusharubi, and Dynamo x Namdhari had good specific combining ability effects and they were recommended because they produce stable performing rare transgressive segregants. A …