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2012

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Articles 151 - 180 of 224

Full-Text Articles in Botany

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 Jan 2012

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 …

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Two New Species Of Cephalaria (Caprifoliaceae) From Turkey, Ramazan Süleyman Göktürk, Hüseyi̇n Sümbül, Ayten Çelebi̇, Leyla Açik Jan 2012

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.

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Analysis Of Chenopodiaceae-Amaranthaceae Airborne Pollen In Salamanca, Spain, David Rodríguez De La Cruz, Estefania Sanchez-Reyes, José Sánchez-Sánchez Jan 2012

Analysis Of Chenopodiaceae-Amaranthaceae Airborne Pollen In Salamanca, Spain, David Rodríguez De La Cruz, Estefania Sanchez-Reyes, José Sánchez-Sánchez

Turkish Journal of Botany

Chenopodiaceae-Amaranthaceae pollen represents an allergenic risk for pollen-sensitive people. The aim of this study was to describe the Chenopodiaceae-Amaranthaceae pollen dynamics in the atmosphere of Salamanca (mid-west Spain) during the years 2000-2007. Measurements were performed by the volumetric method using a Burkard spore trap located in the urban centre at the height of 20 m above ground level. This pollen type was mainly detected in the atmosphere between late spring and late summer, with an Atmospheric Pollen Season (APS) registered between late May and early October and maximum concentrations detected in August. The intradiurnal pattern, calculated by means of 3 …

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In Vitro Plant Regeneration Via Petiole Callus Of Viola Patrinii And Genetic Fidelity Assessment Using Rapd Markers, Gururaj Chalageri, Uddagiri Venkanna Babu Jan 2012

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 …

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Ecological Aspects Of The Arid And Semi-Arid Truffle In Turkey: Evaluation Of Soil Characteristics, Morphology, Distribution, And Mycorrhizal Relationships, Mehmet Akyüz, Sevda Kirbağ, Murat Kurşat Jan 2012

Ecological Aspects Of The Arid And Semi-Arid Truffle In Turkey: Evaluation Of Soil Characteristics, Morphology, Distribution, And Mycorrhizal Relationships, Mehmet Akyüz, Sevda Kirbağ, Murat Kurşat

Turkish Journal of Botany

We undertook an evaluation of the physical and chemical quality of soil characteristics, micro- and macroscopic features of morphology, distribution, and mycorrhizal relationships of Terfezia boudieri Chatin. The topsoil was found to be 54.73% sand, 21.97% clay, 23.30% dust, 45.27% dust-clay, 0.126% nitrogen, 1.848% organic matter, and 3.78% total lime. Investigations revealed that the soil contained 40.92 ppm P_2O_5, 613.0 ppm K_2O, 28.82 ppm Na, and 0.164 mmhos/cm salt. It had a pH of 7.12 and the soil type was determined to be sand-clay-slimy. Various characteristics were recorded including ascocarp features (hypogeous, like tubers) and colour (peridium, glebe red tones), …

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Capnobotryella Isiloglui, A New Rock-Inhabiting Fungus From Austria, Hacer Bakir Sert, Michael Wuczkowski, Katja Sterflinger Jan 2012

Capnobotryella Isiloglui, A New Rock-Inhabiting Fungus From Austria, Hacer Bakir Sert, Michael Wuczkowski, Katja Sterflinger

Turkish Journal of Botany

A new rock-inhabiting fungal taxon was isolated from St. Margarethen Church in Vienna, Austria. Based on small subunit and internal transcribed regions of rDNA sequencing, the new taxon was described as Capnobotryella isiloglui Sert & Sterflinger. The type culture of the taxa is in the ACBR culture collection (Vienna, Austria, MA 3619, EMBL Accession Number: AM746201.1).

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A New Record For The Flora Of Turkey: Sorbus Caucasica Var. Caucasica (Rosaceae), Özgür Emi̇nağaoğlu, Mi̇mar Si̇nan Özkaya, Hüseyi̇n Aşkin Akpulat Jan 2012

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.

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A New Genus And Three New Species From Central Anatolia, Turkey, Meci̇t Vural, Hayri̇ Duman, Zeki̇ Aytaç, Nezaket Adigüzel Jan 2012

A New Genus And Three New Species From Central Anatolia, Turkey, Meci̇t Vural, Hayri̇ Duman, Zeki̇ Aytaç, Nezaket Adigüzel

Turkish Journal of Botany

A new genus (Pseudodelphinium H.Duman, Vural, Aytaç & Adıgüzel) and 3 new species (Pseudodelphinium turcicum H.Duman, Vural, Aytaç & Adıgüzel; Iberis halophila Vural & H.Duman; and Frankenia salsuginea Adıgüzel & Aytaç) from the Tuz Gölü (Salt Lake) basin (Central Anatolia) are described. Illustrations, ecological habit, and a distribution map are given. The relationships of the new genus and species are discussed in terms of related taxa.

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A New Species Of Marrubium (Lamiaceae) From Central Anatolia, Turkey, Zeki̇ Aytaç, Gencay Akgül, Murat Eki̇ci̇ Jan 2012

A New Species Of Marrubium (Lamiaceae) From Central Anatolia, Turkey, Zeki̇ Aytaç, Gencay Akgül, Murat Eki̇ci̇

Turkish Journal of Botany

Marrubium sivasense Aytaç, Akgül & Ekici sp. nova (Lamiaceae) is described and illustrated from Central Anatolia, Turkey. The new species most resembles Marrubium depauperatum, but it differs by 3-10 flowered verticillasters, crenate to crenulated leaf margins, and unequal calyx teeth. The ecology and phenology of the new species as well as its etymology, conservation status, and diagnostic features are discussed.

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Allium Shirnakiense, Sect. Melanocrommyum (Liliaceae), A New Species From South-Eastern Turkey, Lütfi̇ Behçet, Mustafa Rüstemoğlu Jan 2012

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.

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Embryological And Cytological Features Of Gagea Bohemica (Liliaceae), Fi̇li̇z Vardar, Işil İsmai̇loğlu, Meral Ünal Jan 2012

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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Germination Response Of Five Eastern Mediterranean Woody Species To Smoke Solutions Derived From Various Plants, Şükrü Serter Çatav, İsmai̇l Bekar, Büşra Seda Ateş, Gökhan Ergan, Funda Oymak, Eli̇f Deni̇z Ülker, Çağatay Tavşanoğlu Jan 2012

Germination Response Of Five Eastern Mediterranean Woody Species To Smoke Solutions Derived From Various Plants, Şükrü Serter Çatav, İsmai̇l Bekar, Büşra Seda Ateş, Gökhan Ergan, Funda Oymak, Eli̇f Deni̇z Ülker, Çağatay Tavşanoğlu

Turkish Journal of Botany

The role of smoke as a fire-related germination cue is well known in many parts of the world, including Mediterranean-type ecosystems; however, it has been neglected in the Mediterranean Basin (MB). We studied the germination response of 5 woody species found in the eastern MB (south-western Turkey) to smoke solutions derived from different plant species. Of the 5 species examined, 2 [Sarcopoterium spinosum (L.) Spach and Satureja thymbra L.] showed significant increments in germination percentage after smoke treatments compared to the control, while the remaining 3 [Calicotome villosa (Poir.) Link, Cistus salviifolius L., and Lavandula stoechas L.] did not. However, …

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Allelopathic Effect Of Cassia Tora On Seed Germination And Growth Of Mustard, Eva Sarkar, Samarendra Nath Chatterjee, Pampa Chakraborty Jan 2012

Allelopathic Effect Of Cassia Tora On Seed Germination And Growth Of Mustard, Eva Sarkar, Samarendra Nath Chatterjee, Pampa Chakraborty

Turkish Journal of Botany

Cassia tora L. (CT) is a widely growing weed in India with medicinal value and has been reported to show allelopathic potential causing biological suppression on crops. The present study was conducted to observe its suppression on Brassica campestris L. (mustard). The rate of seed germination and the root length, shoot length, chlorophyll content, fresh weight (FW), dry weight (DW), and relative water content (RWC) of 10-day-old mustard seedlings were observed after treatment with aqueous extracts of the roots, leaves, and seeds of CT and compared with control sets treated with distilled water. A confirmatory chemical test was conducted to …

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Contributions To The Macrofungal Diversity Of Uşak Province, Azi̇z Türkoğlu, Dursun Yağiz Jan 2012

Contributions To The Macrofungal Diversity Of Uşak Province, Azi̇z Türkoğlu, Dursun Yağiz

Turkish Journal of Botany

This study was conducted on the macrofungal specimens collected from Uşak in 2006^-2009. In field and laboratory studies, 100 taxa belonging to 30 families and 2 classes were identified. Ten taxa belong to Ascomycetes and 90 to Basidiomycetes. Seven of them, i.e. Pseudoplectania sphagnophila (Pers.) Kreisel, Conocybe pulchella (Velen.) Hauskn. & Svrcek, Entoloma politoflavipes Noordel. & Liiv, Entoloma saundersii (Fr.) Sacc., Entoloma serrulatum (Fr.) Hesler, Hygrophorus nemoreus (Pers.) Fr., and Rugosomyces ionides (Bull.) Bon, are new records for Turkey.

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New Records Of Corticioid Fungi With Heterobasidia From Ukraine, Olexander Ordynets Jan 2012

New Records Of Corticioid Fungi With Heterobasidia From Ukraine, Olexander Ordynets

Turkish Journal of Botany

Fifteen species of corticioid fungi with heterobasidia are recorded from the forests in the middle of the Seversky Donets River basin (eastern Ukraine) from 2007 to 2011. Of them, 11 species are new to Ukraine. They are Basidiodendron rimulentum (Bourdot et Galzin) Luck-Allen, Ceratobasidium cornigerum (Bourdot) D.P.Rogers, Eichleriella deglubens (Berk. et Broome) Lloyd, Exidiopsis griseobrunnea K.Wells et Raitv. subsp. griseobrunnea, Helicogloea lagerheimii Pat., Stypella grilletii (Boud.) P.Roberts, Tulasnella albida Bourdot et Galzin, T. eichleriana Bres., T. pallida Bres., T. saveloides P.Roberts, and T. thelephorea (Juel) Juel. Two of these species, Exidiopsis griseobrunnea and Tulasnella saveloides, are still known to be …

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One More Allium Species For The Turkish Flora: Allium Saxatile, Fatma Neri̇man Özhatay, Mi̇ne Koçyi̇ği̇t, Emi̇ne Akalin Uruşak Jan 2012

One More Allium Species For The Turkish Flora: Allium Saxatile, Fatma Neri̇man Özhatay, Mi̇ne Koçyi̇ği̇t, Emi̇ne Akalin Uruşak

Turkish Journal of Botany

Allium saxatile M.Bieb. was collected from the north-western corner of European Turkey (Demirköy, Kırklareli) during the field survey of the "Yıldız Mountain Biosphere Project". It has been reported as a new record for the Turkish flora. A description based on the collected specimens, photographs of its habitat and flowering plants, map of the distribution area, and its karyotype are given.

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Leaf And Anatomical Traits In Relation To Physiological Characteristics In Mulberry (Morus Sp.) Cultivars, Vineet Kumar, Javuli Kodandaramaiah, Mala Vati Rajan Jan 2012

Leaf And Anatomical Traits In Relation To Physiological Characteristics In Mulberry (Morus Sp.) Cultivars, Vineet Kumar, Javuli Kodandaramaiah, Mala Vati Rajan

Turkish Journal of Botany

Micromorphological and anatomical traits in relation to physiological characteristics were studied in the leaves of 4 mulberry (Morus sp.) cultivars (V_1, TR_{10}, S_{34}, and Mysore local) by scanning electron microscope. The results revealed that leaf thickness was lowest (124.42 ± 2.21 µm) in the TR_{10} genotype and highest in V_1 (263.77 ± 5.17 µm). Cultivar S_{34} ranked second in respect to leaf thickness (203.57 ± 1.98 µm), followed by Mysore local (127.94 ± 2.19 µm). The thickness of palisade parenchyma was 143.66 ± 2.42 µm in V_1, 64.95 ± 1.60 µm in TR_{10}, 83.92 ± 1.43 µm in S_{34}, and …

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Seasonal Variations In Phytoplankton Communities In Zayandeh-Rood Dam Lake (Isfahan, Iran), Masoumeh Shams, Saeed Afsharzadeh, Tahi̇r Atici Jan 2012

Seasonal Variations In Phytoplankton Communities In Zayandeh-Rood Dam Lake (Isfahan, Iran), Masoumeh Shams, Saeed Afsharzadeh, Tahi̇r Atici

Turkish Journal of Botany

Variations in the phytoplankton of Zayandeh-Rood Dam Lake were studied seasonally from September 2005 to August 2006 at 4 different stations. A total of 112 species and 53 genera belonging to 6 divisions were identified. The species belonging to Bacillariophyta, Chlorophyta, Cyanophyta, Euglenophyta, and Dinophyta were found frequently. Chrysophyta species were found in low numbers. Cyclotella meneghinina Kütz., a centric diatom, was the dominant species at all stations. The density of the phytoplankton was between 470 and 150,470 cells/cm^3. According to the Shannon-Weaver Index, the highest and the lowest diversities were determined in November and May, respectively. Regarding physico-chemical analysis …

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New Records For The Freshwater Algae Of Turkey (Tigris Basin), Tülay Özer, İlkay Açikgöz Erkaya, Abel Udo Udoh, Aydin Akbulut, Kazim Yildiz, Bülent Şen Jan 2012

New Records For The Freshwater Algae Of Turkey (Tigris Basin), Tülay Özer, İlkay Açikgöz Erkaya, Abel Udo Udoh, Aydin Akbulut, Kazim Yildiz, Bülent Şen

Turkish Journal of Botany

Samples were collected from different habitats (plankton, epipelon, epiphyton, and epilithon) at 20 stations situated on rivers and dam systems in the Tigris Basin between December 2004 and November 2005. Twenty-five new records were identified for the Turkish freshwater algae. They belong to the following divisions: 3 to Cyanobacteria, 1 to Rhodophya, 1 to Euglenozoa, 2 to Myzozoa, 1 to Ochrophyta, 9 to Chlorophyta, and 8 to Charophyta.

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Myxomycetes Of Mustafa Kemal University Campus And Environs (Turkey), Hayri̇ Baba Jan 2012

Myxomycetes Of Mustafa Kemal University Campus And Environs (Turkey), Hayri̇ Baba

Turkish Journal of Botany

In this taxonomic study, myxomycetes of Tayfur Sökmen Campus (Hatay) were collected during 2010-2011. As a result of field and laboratory studies we reported 44 species of protosteliomycetes and myxomycetes. Three of these species (Diderma deplanatum Fr., Didymium megalosporum Berk & M.A.Curtis, and Lamproderma atrosporum Meyl.) are recorded for the first time from Turkey. Lamproderma atrosporum was treated with the moist chamber cultures method in the laboratory but Didymium megalosporum and Diderma deplanatum were determined naturally. The distribution, habitat, and collection numbers of the identified species are given.

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Microelement Localization In Leaves Of Populus Spp. And Tolerance Mechanisms To Boron-Salt Toxicity, Daniel Arriaga Jan 2012

Microelement Localization In Leaves Of Populus Spp. And Tolerance Mechanisms To Boron-Salt Toxicity, Daniel Arriaga

Open Access Theses & Dissertations

Phytoremediation has been proposed as a low-cost, environmentally friendly alternative to clean highly contaminated sites. Phytoremediation using trees offer the advantage of metal immobilization (phytostabilization), high hydraulic pumping pressures, produce large plant biomass, absorption of total dissolved salts within their tissue, long life spans, less frequent irrigation and, a massive root system that helps soil attachment. Hybrid poplar varieties are long-lived, perennial, fast growing, and produce a large amount of foliage to harvest. Boron is an essential micronutrient for plants. Certain locations, such as California and Turkey, have suffered from high boron efflux from irrigation waters. It has been identified …

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Macrofungi Distribution Of Cocakdere Valley (Arslanköy, Mersin), Hasan Hüseyi̇n Doğan, Si̇nan Aktaş, Celaleddi̇n Öztürk, Giyasetti̇n Kaşik Jan 2012

Macrofungi Distribution Of Cocakdere Valley (Arslanköy, Mersin), Hasan Hüseyi̇n Doğan, Si̇nan Aktaş, Celaleddi̇n Öztürk, Giyasetti̇n Kaşik

Turkish Journal of Botany

The present study reports on species of macrofungi collected from 2002 to 2005 in Cocakdere valley in the central Taurus mountains. This area is protected and is one of the important plant areas in Turkey. In the field and during laboratory studies 186 taxa belonging 2 divisions and 44 families were identified. Among them, 6 families and 10 species belong to Ascomycota, and 38 families and 186 species belong to Basidiomycota. Moreover, 4 taxa-Cortinarius aureifolius, Inocybe hygrophorus, Ramaria suecica, and Scytinostroma portentosum -were found in the Turkish mycobiota for the first time.

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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 Jan 2012

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 …

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Reproductive Biology Of Ludwigia Leptocarpa And L. Adscendens Subsp. Diffusa In Ile Ife, Nigeria, Matthew Oziegbe, Julius Olaoye Faluyi Jan 2012

Reproductive Biology Of Ludwigia Leptocarpa And L. Adscendens Subsp. Diffusa In Ile Ife, Nigeria, Matthew Oziegbe, Julius Olaoye Faluyi

Turkish Journal of Botany

Ludwigia L. (Onagraceae) species are known to be invasive in most parts of the world, serving as a threat to native plant species and blocking navigational channels. In Africa, they block waterways and are serious weeds in wet fields, most especially in rice paddies. The floral morphology, mode of sexual reproduction, and mechanism of fruit dispersal in water of L. leptocarpa (Nutt.) H.Hara and L. adscendens (L.) H.Hara subsp. diffusa (Forssk.) P.H.Raven were assessed in the Department of Botany of Obafemi Awolowo University, Ile Ife, Nigeria, from March 2006 to March 2009. L. leptocarpa produced cylindrical, hairy fruits of 34.80 …

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Lepiotaceous Fungi (Agaricaceae) In The Iranian Part Of Caucasia, Mohammad Reza Asef, Panah Muradov Jan 2012

Lepiotaceous Fungi (Agaricaceae) In The Iranian Part Of Caucasia, Mohammad Reza Asef, Panah Muradov

Turkish Journal of Botany

In this research, lepiotaceous fungi belonging to the family Agaricaceae were collected and identified from the Iranian part of Caucasia. As a result of these investigations, 14 species belonging to 6 genera (Chlorophyllum Massee, Cystolepiota Singer, Lepiota (Pers.) Gray, Leucoagaricus Locq. ex Singer, Leucocoprinus Pat., and Macrolepiota Singer) were identified. Of the species identified, Chlorophyllum molybdites (G.Mey.) Massee, Cystolepiota seminuda (Lasch) Bon, Lepiota clypeolarioides Rea, Lepiota felina (Pers.) P.Karst., and Leucocoprinus ianthinus (Cooke) P.Mohr are new for Iranian fungus biota.

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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 Jan 2012

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 …

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Morphology And Density Of Trichomes And Stomata Of Trichosanthes Cucumerina (Cucurbitaceae) As Affected By Leaf Age And Salinity, Odunayo Clement Adebooye, Mauricio Hunsche, Georg Noga, Christa Lankes Jan 2012

Morphology And Density Of Trichomes And Stomata Of Trichosanthes Cucumerina (Cucurbitaceae) As Affected By Leaf Age And Salinity, Odunayo Clement Adebooye, Mauricio Hunsche, Georg Noga, Christa Lankes

Turkish Journal of Botany

We investigated the relationship between leaf age and trichome/stomata densities in the snake tomato (Trichosanthes cucumerina L.). In a second experiment, the effects of different salinity levels on trichome and stomatal densities and their micromorphology were investigated. The leaf age investigation utilised young, semiold, and old leaves, while the salinity study utilised 0, 60, 120, and 180 mM NaCl for the investigation. Two morphotypes (Variant --Green and Variant B-Light Green) of T. cucumerina were used for the salinity experiment while only Variant B-Light Green was used for the leaf age investigation. This study identified 2 discernible types of trichomes in …

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Agricultural And Municipal Waste As Potting Media Components For The Growth And Flowering Of Dahlia Hortensis ‘Figaro’, Usman Tariq, Shoaib Ur Rehman, Muhammad Aslam Khan, Adnan Younis, Muhammad Yaseen, Muhammad Ahsan Jan 2012

Agricultural And Municipal Waste As Potting Media Components For The Growth And Flowering Of Dahlia Hortensis ‘Figaro’, Usman Tariq, Shoaib Ur Rehman, Muhammad Aslam Khan, Adnan Younis, Muhammad Yaseen, Muhammad Ahsan

Turkish Journal of Botany

This research project was conducted to evaluate the use of different waste materials as potting media for the dwarf variety Dahlia hortensis 'Figaro.' A total of 10 treatments were used where each treatment, consisting of 9 plants, was replicated 3 times. The results associated with plant growth parameters indicated that the maximum values for plant height, number of side shoots per plant, number of tubers per plant, flower diameter, and least days to flower emergence were observed in media containing coconut coir; the maximum corm weight per plant, however, was found in T_8, where rice hull was added to silt. …

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Induction Of Phytochelatin And Responses Of Antioxidants Under Cadmium Stress In Safflower (Carthamus Tinctorius) Seedlings, Shahram Namdjoyan, Shahrokh Namdjoyan, Hossein Kermanian Jan 2012

Induction Of Phytochelatin And Responses Of Antioxidants Under Cadmium Stress In Safflower (Carthamus Tinctorius) Seedlings, Shahram Namdjoyan, Shahrokh Namdjoyan, Hossein Kermanian

Turkish Journal of Botany

We investigated the role of antioxidant compounds (e.g.,\alpha-tocopherol, phytochelatins, glutathione, and other non-protein thiols) in the cadmium (Cd) tolerance of safflower (Carthamus tinctorius L. cv. Arak2811) seedlings exposed to different concentrations of Cd (0-100 \muM) for a week. A concentration- and tissue- dependent response to Cd was observed. Increasing Cd supply markedly reduced the dry weight of roots. Plants accumulated a substantial amount of Cd, especially in the roots. Levels of \alpha-tocopherol showed a significant increase with an increase in the concentration of Cd in leaves. Upon Cd exposure, \alpha-tocopherol levels followed a similar pattern in the root tissue with …

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The Response Of The Xerophytic Plant Gypsophila Aucheri To Salt And Drought Stresses: The Role Of The Antioxidant Defence System, Aşkim Hedi̇ye Sekmen Esen, Rengi̇n Özgür, Bariş Uzi̇lday, Zehra Özgecan Tanyolaç, Ahmet Di̇nç Jan 2012

The Response Of The Xerophytic Plant Gypsophila Aucheri To Salt And Drought Stresses: The Role Of The Antioxidant Defence System, Aşkim Hedi̇ye Sekmen Esen, Rengi̇n Özgür, Bariş Uzi̇lday, Zehra Özgecan Tanyolaç, Ahmet Di̇nç

Turkish Journal of Botany

The aim of the present study was to determine the antioxidant system responses of a xerophytic plant to salinity and drought, which were not elucidated before. Physiological and antioxidant responses of the xerophytic plant Gypsophila aucheri Boiss. were investigated under salinity (100 and 300 mM NaCl) and drought (withholding watering) treatment for 2 weeks in a controlled growth chamber. Besides growth responses (relative growth rate (RGR)), superoxide dismutase (SOD), catalase (CAT), peroxidase (POX), ascorbate peroxidase (APX), and glutathione reductase (GR) activities, and SOD and CAT isoenzymes activities were determined under stress conditions. Moreover, the level of lipid peroxidation was determined …

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