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2014

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A New Species Of Onobrychis Sect. Onobrychis (Fabaceae) From Iran, Atefe Amirahmadi, Shahrokh Kazempour Osaloo, Maryam Khoshsokhan Mozaffar, Mohammad Mehdi Charkhchian Jan 2014

A New Species Of Onobrychis Sect. Onobrychis (Fabaceae) From Iran, Atefe Amirahmadi, Shahrokh Kazempour Osaloo, Maryam Khoshsokhan Mozaffar, Mohammad Mehdi Charkhchian

Turkish Journal of Botany

Onobrychis alamutensis Amirah., Kaz. Osaloo & Charkhch. is described as a new species. It is restricted to the northwestern Alborz mountain range in Rudbar-Alamut, Qazvin, Iran. The diagnostic characters and relevant description of the species are given. The new species is distinguished from its closely related taxa, Onobrychis verae Sirj., O. ptychophylla Sirj. & Rech.f., and O. sosnowskyi Grossh. in both morphological and molecular evidence (nrDNA ITS sequences). The distribution map and an illustration of the new species are also provided.

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Census, Reproductive Biology, And Germination Of Astragalus Gines-Lopezii (Fabaceae), A Narrow And Endangered Endemic Species Of Sw Spain, Vanesa Martínez-Fernández, Felipe Martinez-Garcia, Felix Perez Garcia Jan 2014

Census, Reproductive Biology, And Germination Of Astragalus Gines-Lopezii (Fabaceae), A Narrow And Endangered Endemic Species Of Sw Spain, Vanesa Martínez-Fernández, Felipe Martinez-Garcia, Felix Perez Garcia

Turkish Journal of Botany

Astragalus gines-lopezii Talavera, Podlech, Devesa & F.M.Vázquez (Fabaceae) is a threatened endemic species with a distribution restricted to a very small area in Badajoz Province (Extremadura Region, SW Spain) and only 2 populations are known. This species was catalogued in the \"Endangered\" category in the 2008 Red List and the 2010 Threatened Spanish Vascular Flora List. Despite its status as an endangered species, at present very little is known about the distribution, census, and reproductive biology of this species. In this study we have carried out an exhaustive census of A. gines-lopezii, and we have evaluated the production of flowers, …

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Bryophyte Flora Of Erciyes Mountain In Turkey, With 6 Bryophyte Records From The Country, Recep Kara, Tülay Ezer, Merve Can Gözcü, Şadi̇ye Gül Bozdoğan Jan 2014

Bryophyte Flora Of Erciyes Mountain In Turkey, With 6 Bryophyte Records From The Country, Recep Kara, Tülay Ezer, Merve Can Gözcü, Şadi̇ye Gül Bozdoğan

Turkish Journal of Botany

In this study, the bryophyte flora of Erciyes Mountain was investigated. In total, 244 taxa were found in this area. Of these, 9 families, 9 genera, and 11 taxa belong to liverworts and 25 families, 72 genera, and 233 taxa belong to mosses. According to Henderson's grid-square system, 138 bryophyte taxa for the B8 square are new records. Among them, Leiocolea heterocolpos (Thed. ex Hartm.) H.Buch., Scapania obscura (Arn. & Jens.) Schiffn., Schistidium pulchrum H.H.Blom., Tortula lingulata Lindb., Bryum knowltonii Barnes, and Brachythecium capillaceum (F.Weber & D.Mohr) Giacom are new records for the bryophyte flora of Turkey. Polytrichastrum sexangulare (Brid.) …

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Planktothrix Rubescens: A Perennial Presence And Toxicity In Lake Sapanca, Reyhan Akçaalan Albay, Lati̇fe Köker, Cenk Gürevi̇n, Meri̇ç Albay Jan 2014

Planktothrix Rubescens: A Perennial Presence And Toxicity In Lake Sapanca, Reyhan Akçaalan Albay, Lati̇fe Köker, Cenk Gürevi̇n, Meri̇ç Albay

Turkish Journal of Botany

Cyanobacteria are expected to adjust to new conditions better than other primary producers since they have a long history of adaptation as one of the first organisms on earth. Their ecophysiological adaptations differ widely among cyanobacterial species. As a stratified species, P. rubescens forms a population in the metalimnion during summer months in lakes with clear water and disperses in the whole water column during the period. However, after a dry season in 2006 and 2007, a prolonged surface bloom in late winter was observed in Lake Sapanca The maximum biomass of P. rubescens reached 13.9 mg L^{-1} in surface …

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Some Factors Affecting The Abundance Of Phytoplankton In An Unproductive Alkaline Lake (Lake Hazar, Turkey), Mehmet Ali̇ Turan Koçer, Bülent Şen Jan 2014

Some Factors Affecting The Abundance Of Phytoplankton In An Unproductive Alkaline Lake (Lake Hazar, Turkey), Mehmet Ali̇ Turan Koçer, Bülent Şen

Turkish Journal of Botany

This study aimed to explain the seasonal and vertical distribution of phytoplankton in the pelagic zone of a deep alkaline lake that is characterized by low phytoplankton abundance. Phytoplankton and water samples were collected seasonally from 9 points and 7 depths between the surface and 20 m from December 2004 to September 2005. Planktolyngbya contorta was the dominant or subdominant species in all seasons and depths. The dominance of Gomphonema species was observed in December, but they were subdominant in September. Cyclotella meneghiniana was dominant at 20 m and subdominant in the upper depths during March, June, and September. Melosira …

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Spatiotemporal Distribution In Phytoplankton Community With Distinct Salinity Regimes Along The Mandovi Estuary, Goa, India, Suraksha Mohan Pednekar, Vijaya Kerkar, Shivprasad Ganesh Prabhu Matondkar Jan 2014

Spatiotemporal Distribution In Phytoplankton Community With Distinct Salinity Regimes Along The Mandovi Estuary, Goa, India, Suraksha Mohan Pednekar, Vijaya Kerkar, Shivprasad Ganesh Prabhu Matondkar

Turkish Journal of Botany

Seasonal variations in the composition and abundance of phytoplankton were investigated fortnightly at 3 different regions along the Mandovi estuary from June 2007 to May 2008 in relation to salinity and nutrients. A total of 209 species belonging to 7 divisions were identified during the study period. The highest phytoplankton cell density (5.17 × 10^4 cells L^{-1}) and biomass (7.68 mg m^{-3} chlorophyll a) were observed in the upper sections during the nonmonsoon period, while the highest diversity (3.46) was observed in the upper section during the monsoon period. Bacillariophyta was the dominant phytoplankton group at 71% of the total …

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Cover And Contents Jan 2014

Cover And Contents

Turkish Journal of Botany

No abstract provided.

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Herniaria Caucasica (Caryophyllaceae), Rumex Cyprius (Polygonaceae), And Potentilla Multifida (Rosaceae); 3 New Records For Turkey, Murat Koç, Ergi̇n Hamzaoğlu Jan 2014

Herniaria Caucasica (Caryophyllaceae), Rumex Cyprius (Polygonaceae), And Potentilla Multifida (Rosaceae); 3 New Records For Turkey, Murat Koç, Ergi̇n Hamzaoğlu

Turkish Journal of Botany

Herniaria caucasica Rupr., Rumex cyprius Murb., and Potentilla multifida L. are given as new records for Turkey. The specimens were collected from Van, Mersin, and Kayseri provinces. These new records were compared with similar species in Turkey. Descriptions, distributions, and figures of these new records are given.

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The Assessment Of Genetic Diversity Of Castanea Species By Rapd, Aflp, Issr, And Ssr Markers, Sofiane Abdelhamid, Cong-Linh Lê, Marco Conedera, Philippe Küpfer Jan 2014

The Assessment Of Genetic Diversity Of Castanea Species By Rapd, Aflp, Issr, And Ssr Markers, Sofiane Abdelhamid, Cong-Linh Lê, Marco Conedera, Philippe Küpfer

Turkish Journal of Botany

Castanea Mill. (chestnut) is a multipurpose deciduous tree and member of the family Fagaceae, widely distributed throughout North America, Europe, and Asia. The evaluation of the genetic diversity of chestnut species is crucial for the effective conservation of this economically and ecologically valuable tree. In this study, we applied 4 DNA markers to detect the genetic variability among and within Castanea species and to compare the effectiveness of each system in estimating genetic variation. We amplified 106 random amplified polymorphic DNA (RAPD), 228 amplified fragment length polymorphism (AFLP), 42 intersimple sequence repeat (ISSR), and 36 simple sequence repeat (SSR) polymorphic …

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Phytolith Analysis Of Poa Pratensis (Poaceae) Leaves, Zsuzsa Lisztes_Szabo, Szilvia Kovács, Ákos Petö Jan 2014

Phytolith Analysis Of Poa Pratensis (Poaceae) Leaves, Zsuzsa Lisztes_Szabo, Szilvia Kovács, Ákos Petö

Turkish Journal of Botany

Phytoliths in Poa pratensis L. (Poaceae) leaf blades and sheaths are described in this study. The role of plant opal particles-known as phytoliths-is considerable in taxonomical studies, and their long-term preservation in sediments makes them a useful tool in the reconstruction of ancient plant communities and plant-human interactions. All together, 2244 phytoliths were counted and analyzed in 25 plant samples (5 shoots of 5 specimens and approximately 500-600 phytoliths per specimen). The biogenic silica content of P. pratensis leaves was determined at 2.61%, and 27 morphotypes have been described using the International Code for Phytolith Nomenclature. Two morphotypes are described …

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Flower Closure In The Field Bindweed (Convolvulus Arvensis): A Field Test Of The Pollination Hypothesis, Pavol Prokop, Dominika Neupauerova Jan 2014

Flower Closure In The Field Bindweed (Convolvulus Arvensis): A Field Test Of The Pollination Hypothesis, Pavol Prokop, Dominika Neupauerova

Turkish Journal of Botany

Although the behavioral plasticity of flower traits has received considerable attention, its adaptive value is not thoroughly understood. We experimentally examined flower opening/closure in field bindweed (Convolvulus arvensis), a species with short flower persistence (1 day) in which adaptive responses to pollination were not previously expected. In line with the pollination hypothesis we suggested that flower exposure in this species should respond to pollination. More specifically, we predicted that flower closure in the pollinated flowers would be quicker than that in unpollinated flowers. As predicted, the unpollinated flowers were open for a longer time than the pollinated flowers. There was …

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Ellenberg’S Indicator Values For Soil Nitrogen Concentration And Ph In Selected Swamp Forests In The Central Black Sea Region Of Turkey, Burak Sürmen, Hamdi̇ Güray Kutbay, Dudu Duygu Kiliç, Rena Huseyinova, Mahmut Kilinç Jan 2014

Ellenberg’S Indicator Values For Soil Nitrogen Concentration And Ph In Selected Swamp Forests In The Central Black Sea Region Of Turkey, Burak Sürmen, Hamdi̇ Güray Kutbay, Dudu Duygu Kiliç, Rena Huseyinova, Mahmut Kilinç

Turkish Journal of Botany

Ellenberg developed a system that assigns indicator scores for habitat characteristics of individual plant species. Swamp forests are highly diverse ecological communities and include different plant species, all of which have different ecological requirements. Ellenberg's indicator values (EIVs) were calculated for soil pH and nitrogen (N) concentration in some swamp forest species in the Central Black Sea region of Turkey. In this study, the EIVs for soil pH were usually similar in the swamp forest species studied, while some differences were found with respect to EIVs for soil nitrogen concentration. Tolerance values (TVs) of all of the studied species were …

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Morphology Of The Seed Coat Of Oxalis Spp. From Buenos Aires Province (Argentina), Sonia Rosenfeldt, Beatriz Gloria Galati Jan 2014

Morphology Of The Seed Coat Of Oxalis Spp. From Buenos Aires Province (Argentina), Sonia Rosenfeldt, Beatriz Gloria Galati

Turkish Journal of Botany

The aim of the present study is to provide detailed morphological descriptions of the seed coat in 10 species of Oxalis from Buenos Aires Province, Argentina, using light microscopy and scanning electron microscopy. The seed is ovate and brown, and its surface is smooth. Oxalis has a mechanism of spermobolia by which a part of the seed coat is detached by the rupture of cells, leaving exposed a layer of opened cells, generally with oxalate crystals. This new coat surface has different characteristics in the species studied in this work. Three types are recognized, mostly on the basis of anatomical …

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A Taxonomic Revision Of The Genus Cephalaria (Caprifoliaceae) In Turkey, Ramazan Süleyman Göktürk, Hüseyi̇n Sümbül Jan 2014

A Taxonomic Revision Of The Genus Cephalaria (Caprifoliaceae) In Turkey, Ramazan Süleyman Göktürk, Hüseyi̇n Sümbül

Turkish Journal of Botany

The morphological features of Cephalaria Schrad. ex Roem. & Schult. were studied based on our specimens collected between 1994 and 2010 in Turkey and herbarium specimens from various herbaria. In the present study, typifications, a list of synonyms, descriptions, ecology, phytogeographical regions, conservation status, and distribution of all studied taxa are given. Taxonomic relationships between similar species are discussed. Illustrations of habit, flower, calyx, involucel, and involucral and receptacular bracts of some species are given. Colour images of some species are also provided. Additional new characters were determined that were not previously given in descriptions of Cephalaria species in the …

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Macromycetes Determined In Yomra (Trabzon) District, Ilgaz Akata, Yasi̇n Uzun, Abdullah Kaya Jan 2014

Macromycetes Determined In Yomra (Trabzon) District, Ilgaz Akata, Yasi̇n Uzun, Abdullah Kaya

Turkish Journal of Botany

This study was carried out on macrofungi samples collected from Yomra district during 2007-2012, and 236 taxa belonging to 58 families were identified. Crocicreas cyathoideum (Bull.) S.E.Carp., Phaeohelotium fagineum (Pers.) Hengstm., and Dacrymyces chrysospermus Berk. & M.A.Curtis are recorded for the first time from Turkey. Calyptella capula (Holmsk.) Quél., Campanella caesia Romagn., and Guepiniopsis buccina (Pers.) L.L.Kenn. are the first members of the genera Calyptella Quél., Campanella Henn., and Guepiniopsis Pat. respectively, in Turkey.

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Phytochemical Importance Of Medicinal Plants As Potential Sources Of Anticancer Agents, Himani Raina, Garima Soni, Nupur Jauhari, Neelam Sharma, Navneeta Bharadvaja Jan 2014

Phytochemical Importance Of Medicinal Plants As Potential Sources Of Anticancer Agents, Himani Raina, Garima Soni, Nupur Jauhari, Neelam Sharma, Navneeta Bharadvaja

Turkish Journal of Botany

The diverse and magnificent plant kingdom of the world is widely known for its medicinal importance. The potential medicinal properties of plant species have contributed significantly in the development of various herbal therapies for a number of diseases across the globe. The benefits of herbal medicine over allopathic medicine have helped medicinal plants to regain their importance in the field of health and medicine. Cancer is one of the major health problems that have widely affected the world's population. There is a great need to combat this disease with better and more effective medication as compared to existing therapies. A …

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Subcellular Localization And Developmental Regulation Of Cytosolic, Soluble Pyrophosphatase Isoforms In Arabidopsis Thaliana, Zahi̇de Nesli̇han Öztürk, Steffen Greiner, Thomas Rausch Jan 2014

Subcellular Localization And Developmental Regulation Of Cytosolic, Soluble Pyrophosphatase Isoforms In Arabidopsis Thaliana, Zahi̇de Nesli̇han Öztürk, Steffen Greiner, Thomas Rausch

Turkish Journal of Botany

Pyrophosphate (PP_{I}) is the by-product of several reversible key reactions of primary metabolism. Thus, generated PP_i should be removed by hydrolysis via pyrophosphatases to prevent accumulation and to drive anabolism. In plastids, a plastidic, soluble pyrophosphatase splits PP_i released by ADPG pyrophosphorylase. The cytosolic PP_i pool is believed to be hydrolyzed by tonoplast- and/or Golgi-integral H^{+}-translocating pyrophosphatases. The Arabidopsis thaliana (L.) Heynh. genome encodes 6 soluble pyrophosphatase isoforms (PPas), 1 of which was shown to be localized in plastids. The remaining 5 of those PPas (PPas 1-5) are more similar to each other with highly conserved protein sequences. They all …

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Nonsense-Mediated Decay Of Sucrose Synthase 1 Mrna With Induced Premature Chain Termination Codon During Cold Acclimation In Winter Wheat, Rita Armoniene, Gintaras Brazauskas Jan 2014

Nonsense-Mediated Decay Of Sucrose Synthase 1 Mrna With Induced Premature Chain Termination Codon During Cold Acclimation In Winter Wheat, Rita Armoniene, Gintaras Brazauskas

Turkish Journal of Botany

Cold acclimation induces the expression of cold-regulated genes needed to protect plants against freezing damage. Fourteen candidate genes were identified as being differentially expressed (presence/absence) between cold acclimated and nonacclimated crown and leaf tissues of 2 winter wheat lines using the cDNA-AFLP method. Two TILLING populations originating from the 2 winter wheat lines were further developed in order to create mutant forms of the candidate genes to verify their role in freezing-tolerance formation. Exon 8 of the identified differentially expressed sucrose synthase 1 (Ss1) gene was chosen for mutation detection by high-resolution melting analysis. A total of 75.68 kb of …

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Identification And Characterization Of A Seed-Specific Grapevine Dehydrin Involved In Abiotic Stress Response Within Tolerant Varieties, Mohsen Hanana, Samia Daldoul, Romain Fouquet, Laurent Deluc, Celine Leon, Michael Hoefer, Francois Barrieu, Abdelwahed Ghorbel Jan 2014

Identification And Characterization Of A Seed-Specific Grapevine Dehydrin Involved In Abiotic Stress Response Within Tolerant Varieties, Mohsen Hanana, Samia Daldoul, Romain Fouquet, Laurent Deluc, Celine Leon, Michael Hoefer, Francois Barrieu, Abdelwahed Ghorbel

Turkish Journal of Botany

To identify and isolate genes related to abiotic stress (salinity and drought) tolerance in grapevine, a candidate gene approach led to the isolation from Cabernet Sauvignon cultivar of a full-length cDNA of dehydrin gene. The latter, named VvDhn, which is highly and mainly induced in late embryogenesis in seeds, encodes for a protein of 124 amino acids with a predicted molecular mass of 13.3 kDa. Details of the physicochemical parameters and structural properties (molecular mass, secondary structure, conserved domains and motives, and putative posttranslational modification sites) of the encoded protein have also been elucidated. The expression study of VvDhn was …

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Assessment Of Genetic Diversity And Phylogenetic Relationships Of Endangered Endemic Plant Barbarea Integrifolia Dc. (Brassicaceae) In Turkey, Ertuğrul Fi̇li̇z, Etem Osma, Ali̇ Kandemi̇r, Hüseyi̇n Tombuloğlu, Guzi̇n Tombuloglu, Seda Bi̇rbi̇lener, Mehtap Aydin Jan 2014

Assessment Of Genetic Diversity And Phylogenetic Relationships Of Endangered Endemic Plant Barbarea Integrifolia Dc. (Brassicaceae) In Turkey, Ertuğrul Fi̇li̇z, Etem Osma, Ali̇ Kandemi̇r, Hüseyi̇n Tombuloğlu, Guzi̇n Tombuloglu, Seda Bi̇rbi̇lener, Mehtap Aydin

Turkish Journal of Botany

Barbarea integrifolia DC. (Brassicaceae) is an endangered and endemic species located in Erzincan and Gümüşhane provinces of Turkey. In total, 27 individuals from 2 natural populations were assessed using the random amplified polymorphic DNA polymerase chain reaction (RAPD-PCR) method coupled with sequence analysis of the internal transcribed spacer (ITS1) rDNA region. Genetic accuracy of RAPD-PCR was tested with 25 RAPD primers, and it resulted in 115 clear and reproducible DNA fragments from 13 RAPD primers. Among these, 76 (66.1%) fragments were found to be polymorphic. According to the ITS1 analysis of B. integrifolia populations, the plants exhibited a relatively poor …

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Phylogeny, Geographic Distribution, And New Taxonomic Circumscription Of The Crocus Reticulatus Species Group (Iridaceae), Dörte Harpke, Lorenzo Peruzzi, Helmut Kerndorff, Theophanis Karamplianis, Theophanis Constantinidis, Vladimir Randelovic, Novica Randelovic, Marina Juskovic, Erich Pasche, Frank R. Blattner Jan 2014

Phylogeny, Geographic Distribution, And New Taxonomic Circumscription Of The Crocus Reticulatus Species Group (Iridaceae), Dörte Harpke, Lorenzo Peruzzi, Helmut Kerndorff, Theophanis Karamplianis, Theophanis Constantinidis, Vladimir Randelovic, Novica Randelovic, Marina Juskovic, Erich Pasche, Frank R. Blattner

Turkish Journal of Botany

Recent phylogenetic analyses proved several infrageneric units within the genus Crocus to be para- or polyphyletic. In an attempt to arrive at a system of Crocus that closely reflects species relationships, we provide here phylogenetic, morphometric, geographic, and nomenclatorial data for the species of a narrower-defined, monophyletic Crocus series Reticulati. We sequenced the ETS and ITS regions of the nuclear ribosomal DNA in 9 Reticulati and 19 outgroup species. Three chloroplast loci (trnL-F, rps16-trnQ, matK-trnK) were sequenced in the newly defined series Reticulati species and 1 outgroup. Data were analyzed with Bayesian and parsimony algorithms. The phylogenies resulted in 2 …

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Bucklandiella Seppeltii, A New Species Of Grimmiaceae From Australasia, And Its Phylogenetic Position Based On Molecular Data, Halina Bednarek-Ochyra, Ryszard Ochyra, Jakub Sawicki, Monika Szczecinska Jan 2014

Bucklandiella Seppeltii, A New Species Of Grimmiaceae From Australasia, And Its Phylogenetic Position Based On Molecular Data, Halina Bednarek-Ochyra, Ryszard Ochyra, Jakub Sawicki, Monika Szczecinska

Turkish Journal of Botany

A new species, Bucklandiella seppeltii Bednarek-Ochyra, Ochyra, Sawicki & Szczecinska, is delimited by its distinct morphology and biogeography. The geographical range of the new species is restricted to the southern-temperate and southern-cool-temperate zones of Tasmania and New Zealand, with maximum occurrence on the South Island of the latter insular country. The species is described and illustrated and its distribution is mapped. The systematic position of B. seppeltii is revealed to be a sister to New Zealand B. allanfifei Bednarek-Ochyra & Ochyra by molecular evidence based on parsimony analysis of nuclear sequences. In some morphological and anatomical traits, B. seppeltii is …

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A Taxonomic Reassessment Of The Tanacetum Aureum (Asteraceae, Anthemideae) Species Group: Insights From Morphological And Molecular Data, Marzie Kazemi, Ali Sonboli, Hassan Zare Maivan, Shahrokh Kazempour Osaloo Jan 2014

A Taxonomic Reassessment Of The Tanacetum Aureum (Asteraceae, Anthemideae) Species Group: Insights From Morphological And Molecular Data, Marzie Kazemi, Ali Sonboli, Hassan Zare Maivan, Shahrokh Kazempour Osaloo

Turkish Journal of Botany

A taxonomic reassessment of the Tanacetum aureum (Lam.) Greuter, M.V.Agab. & Wagenitz (Asteraceae, Anthemideae) species group was performed. This group of species is distinguished by herbaceous perennial habit, (1-)2-10(-80) disciform capitula, with compact to lax corymbs and strongly to moderately convex receptacle. A multivariate statistical analysis of 58 morphological characters using Ward cluster, principal component analyses, and molecular phylogenetic analyses of nrDNA ITS and cpDNA rpL32-trnL^{(UAG)} + ndhF-rpL32 spacer sequence datasets were conducted. Both datasets corroborated that T. aureum, T. oligocephalum (DC.) Sch.Bip., and T. heimerlii (Nabelek) Parsa could be differentiated as separate species. An identification key of the studied …

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Comparison Of Chelating Ability Of No-, Ns-, Ons-, And Ono-Type Schiff Base Derivatives And Their Stability Constants Of Bis-Complexes With Copper(Ii), Hasan Atabey, Esra Findik, Hayati̇ Sari, Mustafa Ceylan Jan 2014

Comparison Of Chelating Ability Of No-, Ns-, Ons-, And Ono-Type Schiff Base Derivatives And Their Stability Constants Of Bis-Complexes With Copper(Ii), Hasan Atabey, Esra Findik, Hayati̇ Sari, Mustafa Ceylan

Turkish Journal of Chemistry

The present study includes important findings relating to the number of donor atoms, species of ligands, and stabilities of complexes. Stabilities of complexes between Cu(II) ion and NO-, NS-, ONS-, and ONO-type Schiff bases were compared. Acid-base properties of the Schiff bases were explained at 25 \pm 0.1 °C and ionic strength (I) of 0.1 M supported by NaCl. The Hyperquad computer program was used for calculation of dissociation and stability constants. The overall stability constants of their Cu(II) complexes were calculated and the various formed complexes between the Schiff bases with Cu(II) ion formulated as CuL_2, CuHL_2, CuH_2L_2, and …

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On The Peculiar Reactivity Of A C,N-Annelated Isoindole Core, Iaroslav Baglai, Valerie Maraval, Zoia Vsevolodivna Voitenko, Carine Duhayon, Yulian Mihailovich Volovenko, Remi Chauvin Jan 2014

On The Peculiar Reactivity Of A C,N-Annelated Isoindole Core, Iaroslav Baglai, Valerie Maraval, Zoia Vsevolodivna Voitenko, Carine Duhayon, Yulian Mihailovich Volovenko, Remi Chauvin

Turkish Journal of Chemistry

C-, N-, and/or O-methylation products were generated from 11H-isoindolo[2,1-a]quinazoline-5-one upon treatment with NaH followed by iodomethane under air, and possible recrystallization from methanol. Two products were fully characterized by NMR and X-ray diffraction analysis. In accordance with the HSAB principle, this soft methylating agent (MeI) leads mainly to the C,C-dimethylated product 11,11-dimethyl-11H-isoindolo[2,1-a]quinazoline-5-one, which was previously not observed, beside the N-methylated product, in a procedure using methyl tosylate as a hard methylating agent of the same substrate in the initial absence of a base. A mechanism is finally proposed for the formation of methyl 2-(3-methyl-4-oxo-3,4-dihydroquinazolin-2-yl)benzoate as an oxidation side product.

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Synthesis, Biological Evaluation, And Molecular Docking Of N'-(Aryl/Alkylsulfonyl)-1-(Phenylsulfonyl) Piperidine-4-Carbohydrazide Derivatives, Hira Khalid, Aziz Ur Rehman, Muhammad Athar Abbasi, Rashad Hussain, Khalid Mohammad Khan, Muhammad Ashraf, Syeda Abida Ejaz, Muhammad Qaiser Fatmi Jan 2014

Synthesis, Biological Evaluation, And Molecular Docking Of N'-(Aryl/Alkylsulfonyl)-1-(Phenylsulfonyl) Piperidine-4-Carbohydrazide Derivatives, Hira Khalid, Aziz Ur Rehman, Muhammad Athar Abbasi, Rashad Hussain, Khalid Mohammad Khan, Muhammad Ashraf, Syeda Abida Ejaz, Muhammad Qaiser Fatmi

Turkish Journal of Chemistry

A series of new N'-[(alkyl/aryl)sulfonyl]-1-(phenylsulfonyl)piperidine-4-carbohydrazide derivatives were synthesized. Starting from ethyl piperidine-4-carboxylate (a), first ethyl 1-(phenylsulfonyl)piperidine-4-carboxylate (1), second 1-(phenylsulfonyl)piperidine-4-carbohydrazide (2), and finally N'-[(alkyl/aryl)sulfonyl]-1-(phenylsulfonyl)piperidine-4-carbohydrazides (4a--n) were synthesized by reacting 2 with alkyl/aryl sulfonyl chlorides (3a--n). The structures of the synthesized compounds were characterized by IR, ^1H-NMR, and EI-MS spectra and all were screened in vitro for their acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) enzyme inhibition activities. Molecular docking was accomplished for these compounds to examine their binding interactions with AChE and BChE human proteins. The strategy we applied for this purpose was a direct receptor-based approach. The binding modes of the inhibitors …

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Fluorescence Quenching Study Of Moxifloxacin Interaction With Calf Thymus Dna, Yunkai Lv, Pan Li, Miao-Lun Jiao, Bao-Sheng Liu, Chao Yang Jan 2014

Fluorescence Quenching Study Of Moxifloxacin Interaction With Calf Thymus Dna, Yunkai Lv, Pan Li, Miao-Lun Jiao, Bao-Sheng Liu, Chao Yang

Turkish Journal of Chemistry

Moxifloxacin (MOX) is a fourth-generation synthetic fluoroquinolone antibacterial agent with many important therapeutic properties. Fluorescence quenching was used to study the interaction of MOX with calf thymus DNA (ct-DNA) in aqueous solution. The intercalative binding mode and a static quenching mechanism were confirmed by the Stern--Volmer quenching rate constant (K_q) of 3.48 \times 10^{11} M^{-1} s^{-1} at 298 K. The thermodynamic parameters (\Delta H = --118.4 KJ mol^{-1} and \Delta S = --299.4 J mol^{-1} K^{-1}) were calculated at different temperatures, and they indicate that the main forces between MOX and ct-DNA are hydrogen bonding and Van der Waals force. …

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Study Of The Interaction Between Glucosamine Hydrochloride And Sodium Dodecylsulphate Micelles Using Conductometric, Isothermal Calorimetry, Zeta-Potential Titrations, And Nmr Noesy, Marcos Roberto Abreu Alves, Luciano Sindra Virtuoso, Elson Santiago De Alvarenga, Ângelo Márcio Leite Denadai Jan 2014

Study Of The Interaction Between Glucosamine Hydrochloride And Sodium Dodecylsulphate Micelles Using Conductometric, Isothermal Calorimetry, Zeta-Potential Titrations, And Nmr Noesy, Marcos Roberto Abreu Alves, Luciano Sindra Virtuoso, Elson Santiago De Alvarenga, Ângelo Márcio Leite Denadai

Turkish Journal of Chemistry

The aim of this work was to investigate the influence of an anti-inflammatory agent, the bulky counterion named glucosamine (Gl^+), in sodium dodecylsulphate (SDS) in 2 ways: 1) by titration of SDS solutions with different concentrations of Gl^+; and 2) by titration of Gl^+ with SDS solution with concentration close to the critical micellar concentration (cmc) (7.7 mM). In procedure 1, micellisation study by isothermal titration calorimetry (ITC) showed that the increase in Gl^+ concentration reduces the cmc and the micellisation enthalpy. Increasing of the micellisation entropy was also observed, suggesting desolvation of micellar structures as a consequence of electrostatic …

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Aryl Butenoic Acid Derivatives As A New Class Of Histone Deacetylase Inhibitors: Synthesis, In Vitro Evaluation, And Molecular Docking Studies, Peruze Ayhan Eşi̇yok, Özlem Seven, Gülüzar Eymur, Gamze Bora Tatar, Di̇dem Dayangaç Erden, Kemal Yelekçi̇, Hayat Yurter, Ayhan Sitki Demi̇r Jan 2014

Aryl Butenoic Acid Derivatives As A New Class Of Histone Deacetylase Inhibitors: Synthesis, In Vitro Evaluation, And Molecular Docking Studies, Peruze Ayhan Eşi̇yok, Özlem Seven, Gülüzar Eymur, Gamze Bora Tatar, Di̇dem Dayangaç Erden, Kemal Yelekçi̇, Hayat Yurter, Ayhan Sitki Demi̇r

Turkish Journal of Chemistry

New aryl butenoic acid derivatives have been synthesized by combining hydroxy- or methoxy-substituted phenyl rings as the capping group, with a double bond in the short linker as well as metal binding groups, enoic ester, and salts bearing either methyl or morpholine. These compounds have been shown to possess promising histone deacetylase inhibition activities via in vitro fluorometric assay and molecular docking studies.

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Application Of Guanidine And Its Salts In Multicomponent Reactions, Mahshid Rahimifard, Ghodsi Mohammadi Ziarani, Boshra Malekzadeh Lashkariani Jan 2014

Application Of Guanidine And Its Salts In Multicomponent Reactions, Mahshid Rahimifard, Ghodsi Mohammadi Ziarani, Boshra Malekzadeh Lashkariani

Turkish Journal of Chemistry

This review gives an overview of the application of guanidine and its salts in multicomponent reactions. It can act as a catalyst or solvent for multicomponent reactions or as a reagent for synthesis of substituted diazines, triazines, and macroheterocycles by multicomponent reactions.

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