Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2015

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 21571 - 21600 of 27529

Full-Text Articles in Entire DC Network

Dual Effect Of Coumarin Benzimidazolium Ionic Salt Covalently Bonded On A Silica Network, Ahmet Gültek, Davut Aksüt, Turgay Seçki̇n, Emre Bi̇rhanli, Mert Olgun Karataş, Bülent Alici Jan 2015

Dual Effect Of Coumarin Benzimidazolium Ionic Salt Covalently Bonded On A Silica Network, Ahmet Gültek, Davut Aksüt, Turgay Seçki̇n, Emre Bi̇rhanli, Mert Olgun Karataş, Bülent Alici

Turkish Journal of Chemistry

Synthesis of the ionic liquid 1-allyl-3-(4-methyl-7,8-dihydroxy-2H-chromen-2-one) benzimidazolium chloride followed by the conversion of ammonium salts on the imidazole ring hooked to the coumarin group was modified by postmodification of the silica matrix where 3-chloropropyltrimethoxysilane was used as not only a surface modification agent, but also as an ATRP halogen source. The synergetic effect of charged ammonium groups as well as hydroxyl groups present on the coumarin was investigated in terms of ATRP polymerization. The results confirmed that brush polymers show outstanding antibacterial effects against Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa.

Go to article

A Comparative Analysis Of Membrane Intactness And Genome Integrity In Pea,Barley, And Wheat In Response To Uvc Irradiation, Mariyana Georgieva, Ivelina Nikolova, Georgi Bonchev, Zornitsa Katerova, Dessislava Todorova Jan 2015

A Comparative Analysis Of Membrane Intactness And Genome Integrity In Pea,Barley, And Wheat In Response To Uvc Irradiation, Mariyana Georgieva, Ivelina Nikolova, Georgi Bonchev, Zornitsa Katerova, Dessislava Todorova

Turkish Journal of Botany

The maintenance of plant genome integrity plays a critical function in the processes of DNA replication, transcription, and repair. Short-wave UV radiation (UVC) is among the most harmful agents known to affect genome stability and to induce DNA damage, including double-strand breaks (DSBs). Most previous studies in plants addressed the effects of UVC radiation at the physiological level; however, little research effort has been put into genome sensitivity across different plant species. Here, we made use of the trypan blue exclusion test and neutral comet assay to assess nuclear membrane and genome integrity in response to UVC radiation in monocot …

Go to article

A Study On Preferred Learning Styles Of Turkish Efl Teacher Trainees, Sevim Inal, Oya Büyükyavuz, Mustafa Tekin Jan 2015

A Study On Preferred Learning Styles Of Turkish Efl Teacher Trainees, Sevim Inal, Oya Büyükyavuz, Mustafa Tekin

Australian Journal of Teacher Education

Since people have different ways of perception, levels of motivation, and attitudes towards teaching and learning they consistently differ from each other in their preferences of learning and acquiring knowledge. Therefore, the more instructors understand the differences, the better chance they have of understanding and meeting the diverse learning needs of their students. The present study has been conducted to investigate the Turkish ELT students’ learning style preferences in relation to gender and age to see if there is any relationship between achievement and learning style preferences. To perform the aim of the study Wintergerst and DeCapua’s (1999) learning style …

Go to article

Inquiring Into Pre-Service Content Area Teachers’ Development Of Literacy Practices And Pedagogical Content Knowledge, Jennifer Mitton Kukner, Anne Murray Orr Jan 2015

Inquiring Into Pre-Service Content Area Teachers’ Development Of Literacy Practices And Pedagogical Content Knowledge, Jennifer Mitton Kukner, Anne Murray Orr

Australian Journal of Teacher Education

The focus of this qualitative multi-year case study is on pre-service teachers’ experiences related to the development of their literacy practices in teaching high school science, math, social studies and other content area courses during their final field placement in a teacher education program. Results indicate tangible indicators of overall growth in participants’ developing pedagogical content knowledge as well differences in the depth of their learning. All participants willingly supported the idea of integrating literacy in content area courses, but their successes were somewhat uneven, and reflective of their evolving pedagogical content knowledge, as they attempted to make literacy practices …

Go to article

Prospective Secondary Science Teachers' Argumentation Skills And The Interaction Of These Skills With Their Conceptual Knowledge, Ömer Acar, Bruce R. Patton, Arthur L. White Jan 2015

Prospective Secondary Science Teachers' Argumentation Skills And The Interaction Of These Skills With Their Conceptual Knowledge, Ömer Acar, Bruce R. Patton, Arthur L. White

Australian Journal of Teacher Education

This study investigated if prospective secondary science teachers enhance their argumentation skills and the interaction of the change in their argumentation skills with their conceptual knowledge during an argumentation-based guided inquiry course. 37 prospective secondary science teachers constituted the study sample. They were grouped according to whether or not they had a misconception about understanding of balanced forces at the beginning of the course. They performed oral and written argumentation tasks during the course. Their written argumentation tasks were assessed four times during the course for balanced forces and sinking and floating behaviour of objects. Results indicated that prospective secondary …

Go to article

A Healthy Dose Of Race? White Students’ And Teachers’ Unintentional Brushes With Whiteness, Samantha Schulz, Jennifer Fane Jan 2015

A Healthy Dose Of Race? White Students’ And Teachers’ Unintentional Brushes With Whiteness, Samantha Schulz, Jennifer Fane

Australian Journal of Teacher Education

This paper reports on efforts by three Australian academics to develop students’ sociocultural awareness (in particular, their racial literacy) during a time of mounting pressure on teacher educators to narrow and standardise their approaches. The field of health education provides a vehicle for research; however, it is not the paper’s central foci. Of key concern is the development of a critical disposition in students – a disposition geared toward teaching for social equity. Learning of this nature transcends topic domains, and therefore allows for collaboration between academics in different parts of teacher education. Specifically, the paper focuses upon ‘whiteness’ and …

Go to article

Changes In Science Teaching Self-Efficacy Among Primary Teacher Education Students, David Palmer, Jeanette Dixon, Jennifer Archer Jan 2015

Changes In Science Teaching Self-Efficacy Among Primary Teacher Education Students, David Palmer, Jeanette Dixon, Jennifer Archer

Australian Journal of Teacher Education

Abstract: Many preservice primary teachers have low self-efficacy for science teaching. Although science methods courses have often been shown to enhance self-efficacy, science content courses have been relatively ineffective in this respect. This study investigated whether a tailored science content course would enhance self-efficacy. The participants were preservice primary teachers and data collection was by survey and interview. Self-efficacy increased during the course and the increases were stable after a 10-month delay period. The factors that enhanced self-efficacy were: learning science content, perceptions of learning how to teach science, and teacher enthusiasm.

Go to article

Cdna Cloning, Molecular Characterization, And Expression Analyses Of Two Novel Porcine Arrdc Genes-Arrdc1 And Arrdc, Hailong Huo, Pei Wang, Shuyan Wang, Yongwang Miao, Hongjiang Wei, Yongyun Zhang, Qiaoling Zhang, Fuquan Li, Lixian Liu, Rui Wang, Weizhen Li, Yue Zhao, Jinlong Huo, Heng Xiao Jan 2015

Cdna Cloning, Molecular Characterization, And Expression Analyses Of Two Novel Porcine Arrdc Genes-Arrdc1 And Arrdc, Hailong Huo, Pei Wang, Shuyan Wang, Yongwang Miao, Hongjiang Wei, Yongyun Zhang, Qiaoling Zhang, Fuquan Li, Lixian Liu, Rui Wang, Weizhen Li, Yue Zhao, Jinlong Huo, Heng Xiao

Turkish Journal of Biology

Arrestin-domain-containing proteins belong to the arrestin family, embers of which are important for regulating signal transduction within cells. In this study, two ARRDC genes (ARRDC1 and ARRDC5) of Diannan small-ear pigs were amplified by reverse transcription polymerase chain reaction and cloned for the first time (accession nos.: KF589202 and KF589203). The full-length coding sequence of ARRDC1 was 1284 nucleotides in length (molecular weight, 45.6 kDa; pI, 7.61) and encoded 427 amino acids. The ARRDC5CDS was 1014 nucleotides in length (molecular weight, 37.5 kDa; pI, 7.08) and encoded 337 amino acids. Sequence homology analysis revealed that the amino acid sequences of …

Go to article

Effects Of Gradual Soil Drought Stress On The Growth, Biomass Partitioning, And Chlorophyll Fluorescence Of Prunus Mongolica Seedlings, Youyan Guo, Hongyuan Yu, Dongsheng Kong, Fang Yan, Donghua Liu, Yajuan Zhang Jan 2015

Effects Of Gradual Soil Drought Stress On The Growth, Biomass Partitioning, And Chlorophyll Fluorescence Of Prunus Mongolica Seedlings, Youyan Guo, Hongyuan Yu, Dongsheng Kong, Fang Yan, Donghua Liu, Yajuan Zhang

Turkish Journal of Biology

The present studyaimed to determine the effects of gradual drought stress on Prunus mongolica seedlings. The growth and chlorophyll fluorescence of the seedlings were investigated under drought and control conditions. The short-term (21 day) decline in soil water content from 30.46% to 15.55% did not significantly influence the growth of P. mongolica seedlings but increased the height, basal diameter, crown, leaf number, stem mass, leaf mass, and root mass of the seedlings. The growth of the drought group reached the maximum, but remained lower than that of the control group, within 21 days. Compared with the control group, the drought …

Go to article

Ghrelin Effects On Midgut Tissue Antioxidative Defense And Glutathione S-Transferase Activity In Lymantria Dispar (Lepidoptera), Vesna Peric Mataruga, Milena Vlahovic, Marija Mrdakovic, Dragana Matic, Anja Gavrilovic, Aleksandra Mrkonja, Larisa Ilijin Jan 2015

Ghrelin Effects On Midgut Tissue Antioxidative Defense And Glutathione S-Transferase Activity In Lymantria Dispar (Lepidoptera), Vesna Peric Mataruga, Milena Vlahovic, Marija Mrdakovic, Dragana Matic, Anja Gavrilovic, Aleksandra Mrkonja, Larisa Ilijin

Turkish Journal of Biology

The aim of the study was to examine changes in Cu?Zn superoxide dismutase (SOD), catalase (CAT), their gel electrophoresis profiles, glutathione reductase (GR) activity, amount of glutathione (GSH), and the activity of glutathione S-transferase (GST) - phase II biotransformation enzyme in the midgut tissue of gypsy moth (Lymantria dispar L. (Lepidoptera: Lymantriidae)) larvae after ghrelin treatment. Four subpicomolar injections of ghrelin (0.3 pmol) or physiological saline (control) were applied every 24 h. The SOD, CAT, GR, GST activity, and amount of GSH were higher in the ghrelin-treated group than in the control. Electrophoresis gel bands of SOD and CAT had …

Go to article

Genetic Integrity Assessment Of Cryopreserved Tomato (Lycopersicon Esculentum Mill.) Genotypes, Ana Coste, Dana Suteu, Ioan Bacila, Constantin Deliu, Sergiu Valimareanu, Adela Halmagyi Jan 2015

Genetic Integrity Assessment Of Cryopreserved Tomato (Lycopersicon Esculentum Mill.) Genotypes, Ana Coste, Dana Suteu, Ioan Bacila, Constantin Deliu, Sergiu Valimareanu, Adela Halmagyi

Turkish Journal of Biology

Shoot tips of five tomato (Lycopersicon esculentum Mill.) genotypes were successfully cryopreserved by droplet vitrification. Recovered plants were studied for genetic stability by two different assays: amplified fragment length polymorphism (AFLP) using 4 primer combinations and sequencing of lycopene $\beta$-cyclase gene (LCY-B) from leaves. The highest shoot regeneration after cryopreservation was 70% (Pontica) following 24 h osmoprotection in 0.5 M sucrose and 30 min dehydration in plant vitrification solution 2 (PVS2). The data inferred from AFLP showed no genetic dissimilarities between in vitro regenerants derived from cryopreserved tissues compared with the noncryopreserved controls. Although a single nucleotide polymorphism, a G→T …

Go to article

Mitochondrial Dna-Related Disorders: Emphasis On Mechanisms And Heterogeneity, Umut Cagin, Jose Antonio Enriquez Jan 2015

Mitochondrial Dna-Related Disorders: Emphasis On Mechanisms And Heterogeneity, Umut Cagin, Jose Antonio Enriquez

Turkish Journal of Biology

Mitochondrial diseases are a heterogeneous group of disorders that are currently the focus of intense research. The many cell functions performed by mitochondria include ATP production, calcium homeostasis, and apoptosis. One of the unique properties of mitochondria is the existence of a separate mitochondrial genome (mitochondrial DNA, mtDNA) found in varying copy numbers and containing 37 genes, 13 of them encoding proteins. All 13 mitochondrially encoded proteins form part of oxidative phosphorylation complexes through combination with approximately 100 nuclear DNA-encoded proteins. Coregulation of nDNA and mtDNA is therefore essential for mitochondrial function, and this coregulation contributes to the heterogeneity and …

Go to article

Expression Profiles Of Genes Related To Melatonin And Oxidative Stress In Human Renal Proximal Tubule Cells Treated With Antibiotic Amphotericin B And Its Modified Forms, Joanna Gola, Aleksandra Skubis, Bartosz Sikora, Celina Kruszniewska-Rajs, Jolanta Adamska, Urszula Mazurek, Barbara Strzalka-Mrozik, Grzegorz Czernel, Mariusz Gagos Jan 2015

Expression Profiles Of Genes Related To Melatonin And Oxidative Stress In Human Renal Proximal Tubule Cells Treated With Antibiotic Amphotericin B And Its Modified Forms, Joanna Gola, Aleksandra Skubis, Bartosz Sikora, Celina Kruszniewska-Rajs, Jolanta Adamska, Urszula Mazurek, Barbara Strzalka-Mrozik, Grzegorz Czernel, Mariusz Gagos

Turkish Journal of Biology

Melatonin protects cells from oxidative stress caused by antibiotics. Through the generation of reactive oxygen species (ROS), amphotericin B (AmB) causes oxidative injuries of the kidneys and liver. Generation of oxidized forms of AmB (AmB-ox) in a patient's circulation may also generate ROS, causing side effects. Studies aimed at elimination of toxic properties of AmB are focused on forming complexes of AmB with copper(II) ions (AmB-Cu2+). However, the influence of such modified forms on renal cells and their transcriptome has not been studied so far. Therefore, the aim of this study was to answer the question of whether AmB-Cu2+ complexes …

Go to article

The Effects Of Midazolam And Etomidate On The Antioxidant System In The Rat Liver, Di̇lek Bayram, Meral Öncü, Efkan Uz, Haci Ramazan Yilmaz, Ayşe Yi̇ği̇t, Ahmet Koçak Jan 2015

The Effects Of Midazolam And Etomidate On The Antioxidant System In The Rat Liver, Di̇lek Bayram, Meral Öncü, Efkan Uz, Haci Ramazan Yilmaz, Ayşe Yi̇ği̇t, Ahmet Koçak

Turkish Journal of Biology

This study was conducted to investigate the histopathological and biochemical effects of midazolam and etomidate, which are intravenous anesthetics used in surgical operations, on rat liver. There were 3 study groups each consisting of 9 animals: the control, midazolam, and etomidate groups. Midazolam and etomidate were administered 10 times with 1-day intervals. At the end of the study, tissues were taken for histological examination and biochemical analysis. We determined superoxide dismutase (SOD), catalase (CAT), and malondialdehyde (MDA) levels in the liver. There was a slight increase in MDA level in the midazolam-exposed group when compared with the controls, and this …

Go to article

Melatonin Induces Antiproliferative Activity Through Modulation Of Apoptoticpathway In H-Ras Oncogene Transformed 5rp7 Cells, Ayşe Kaplan, Gülşen Akalin Çi̇ftçi̇, Hati̇ce Mehtap Kutlu Jan 2015

Melatonin Induces Antiproliferative Activity Through Modulation Of Apoptoticpathway In H-Ras Oncogene Transformed 5rp7 Cells, Ayşe Kaplan, Gülşen Akalin Çi̇ftçi̇, Hati̇ce Mehtap Kutlu

Turkish Journal of Biology

In the present study, cytotoxic and apoptotic effects of melatonin were investigated on H-ras oncogene transformed rat embryo fibroblast 5RP7 cells. Melatonin inhibited cell growth and induced apoptosis in 5RP7 cells. We showed inhibition of cell proliferation that was time- and dose-dependent in 5RP7 cells for 24 and 48 h. Melatonin was not toxic in NIH/3T3 primary mouse embryonic fibroblast cells at low doses for 24 and 48 h. The IC50 (380 μM) value of melatonin for 48 h was chosen for advanced assays. The percentages of early/late apoptotic cells to which melatonin (IC50: 380 μM) was administered were increased …

Go to article

The Effects Of Topical Melatonin On Oxidative Stress, Apoptosis Signals,And P53 Protein Expression During Cutaneous Wound Healing, Azi̇ze Şener, Özge Çevi̇k, Özge Doğan, Nazli Gül Altindi̇ş, Hali̇l Aksoy, Betül Okuyan Jan 2015

The Effects Of Topical Melatonin On Oxidative Stress, Apoptosis Signals,And P53 Protein Expression During Cutaneous Wound Healing, Azi̇ze Şener, Özge Çevi̇k, Özge Doğan, Nazli Gül Altindi̇ş, Hali̇l Aksoy, Betül Okuyan

Turkish Journal of Biology

Elimination of reactive oxygen species (ROS) can be an important strategy to improve healing of wounds. ROS have an effect on proliferation and cell survival signaling, which results in alteration of apoptotic pathways in cells. Melatonin has antioxidant properties on skin wounds. In our study, we investigated the effects of topical melatonin (3%, w/w) on apoptosis and p53 protein expression together with parameters of oxidative stress in a cutaneous excision wound model. Bcl-2 protein levels in wound tissue at the end of days 3, 7, and 14 were significantly increased, while caspase-3 activity and p53 protein expression in wound tissue …

Go to article

Growth, Yield, And Calcium And Boron Uptake Of Tomato(Lycopersicon Esculentum L.) And Cucumber (Cucumis Sativus L.) Asaffected By Calcium And Boron Humate Application In Greenhouse Conditions, Melek Eki̇nci̇, Aslihan Esri̇ngü, Ati̇lla Dursun, Ertan Yildirim, Meti̇n Turan, Mehmet Rüştü Karaman, Tuba Arjumend Jan 2015

Growth, Yield, And Calcium And Boron Uptake Of Tomato(Lycopersicon Esculentum L.) And Cucumber (Cucumis Sativus L.) Asaffected By Calcium And Boron Humate Application In Greenhouse Conditions, Melek Eki̇nci̇, Aslihan Esri̇ngü, Ati̇lla Dursun, Ertan Yildirim, Meti̇n Turan, Mehmet Rüştü Karaman, Tuba Arjumend

Turkish Journal of Agriculture and Forestry

The objective of this study was to examine the effect of calcium humate, boron humate, and humic acid solutions on growth, yield, quality, and calcium and boron uptake of tomato (Lycopersicon esculentum L.) and cucumber (Cucumis sativus L.), as well as changes in soil nutrient status after crop harvest. Four different concentrations (500, 1000, 3000, and 5000 mg kg-1) of calcium humate (12% CaO, 15% humic and fulvic acid), boron humate (10% BOH4, 15% humic and fulvic acid), and humic acid (15% humic and fulvic acid) were used in this research. The results revealed that Ca humate, B humate, and …

Go to article

Physical And Chemical Properties Of Recently Deposited Sediments In The Reservoir Of The Borçka Dam In Artvin, Turkey, Bülent Turgut, Mehmet Özalp, Bahti̇yar Köse Jan 2015

Physical And Chemical Properties Of Recently Deposited Sediments In The Reservoir Of The Borçka Dam In Artvin, Turkey, Bülent Turgut, Mehmet Özalp, Bahti̇yar Köse

Turkish Journal of Agriculture and Forestry

Large dams produce important changes in flow regime and sediment deposition and distribution in rivers. When inundation starts with the building of dams, water surface area increases, flow rate decreases, and sediment carried by the river is deposited in the reservoir. However, there is a lack of research on the physical and chemical properties of recently deposited sediment in reservoirs of large dams. We aimed to fill this gap in the literature by providing valuable data on the initial formation of sediment deposition areas in reservoirs. Therefore, the aim of this study conducted within the Borçka Dam reservoir was to …

Go to article

Ebola Preparedness - An Ed Perspective, Bettina Laier Jan 2015

Ebola Preparedness - An Ed Perspective, Bettina Laier

All Publications

No abstract provided.

Go to article

The Modified Qualities Of Basil Plants By Selenium And/Or Ascorbic Acid, Zahra Oraghi Ardebili, Narges Oraghi Ardebili, Sara Jalili, Somayeh Safiallah Jan 2015

The Modified Qualities Of Basil Plants By Selenium And/Or Ascorbic Acid, Zahra Oraghi Ardebili, Narges Oraghi Ardebili, Sara Jalili, Somayeh Safiallah

Turkish Journal of Botany

The current research aimed to evaluate the possible impacts of foliar supplementations of selenium (Se) and/or ascorbic acid (AsA) on basil. Seedlings were foliarly treated with 4 concentrations of Se (0, 30, 60, and 120 mg L-1) and/or 2 levels of AsA (0 and 200 mg L-1), 2 times with 2-week intervals. In contrast to Se30, chla contents were significantly decreased by Se120 compared with the control. Se applications had a reducing effect on chlb contents. Se and/or AsA treated plants exhibited higher contents of carotenoid. The antioxidative system was affected by the applied treatments as it was indicated by …

Go to article

Temperature Sensitivity Of Photosystem Ii In Isolated Thylakoid Membranes From Fluridone-Treated Pea Leaves, Kolyo Dankov, Georgi Rashkov, Amarendra Misra, Emilia L. Apostolova Jan 2015

Temperature Sensitivity Of Photosystem Ii In Isolated Thylakoid Membranes From Fluridone-Treated Pea Leaves, Kolyo Dankov, Georgi Rashkov, Amarendra Misra, Emilia L. Apostolova

Turkish Journal of Botany

High temperature-induced changes in the photosystem II (PSII) activity of thylakoid membranes isolated from pea (Pisum sativum L. 'Ran') plants treated with low (10-8 M) and high (10-7 M) concentrations of fluridone were investigated. Pulse amplitude modulated (PAM) chlorophyll fluorescence and photosynthetic oxygen evolution (measured by polarographic oxygen rate electrode) were used to estimate the effect of high temperature on the functional activity of PSII. Higher temperature treatments lead to stronger inhibition of the flash oxygen evolution than the primary photochemistry of PSII (Fv/Fm). The inhibitory effect of higher temperature on the PSII? centers is stronger than on the PSIIß …

Go to article

Cytogenetic Studies On Some Scorzonera L. S.L. (Asteraceae) Taxa From Turkey, Fahi̇m Altinordu, Esra Marti̇n, Serdar Makbul, Kami̇l Çoşkunçelebi̇, Mutlu Gültepe Jan 2015

Cytogenetic Studies On Some Scorzonera L. S.L. (Asteraceae) Taxa From Turkey, Fahi̇m Altinordu, Esra Marti̇n, Serdar Makbul, Kami̇l Çoşkunçelebi̇, Mutlu Gültepe

Turkish Journal of Botany

In the present study, chromosome morphology of 32 Scorzonera L. Taxa, including 19 species endemic to Turkey, was analyzed. The plant materials were collected from different natural populations of Turkey between 2005 and 2011. The classification of chromosomes, the length of the long and short arm, haploid chromosome length, arm ratio, and relative chromosomal length were measured by software image analyses. The basic chromosome numbers were determined as x = 6 and x = 7. Two types of ploidy levels were observed as diploidy and tetraploidy. Karyotype asymmetry indices, TF%, As K%, Syi, Rec, A, A1, and A2 were also …

Go to article

Micromorphological Characters On Nutlet And Leaf Indumentum Of Teucrium Sect. Teucrium (Lamiaceae) In Turkey, Gülay Ecevi̇t Genç, Taner Özcan, Tuncay Di̇rmenci̇ Jan 2015

Micromorphological Characters On Nutlet And Leaf Indumentum Of Teucrium Sect. Teucrium (Lamiaceae) In Turkey, Gülay Ecevi̇t Genç, Taner Özcan, Tuncay Di̇rmenci̇

Turkish Journal of Botany

Leaf indumentum and nutlet surface micromorphology of 13 taxa belonging to the Teucrium sect. Teucrium was studied with a scanning electron microscope. We observed 5 trichome types on the nutlets and 8 trichome types on the leaves. Branched trichomes were not found on the nutlets. Nutlet shapes of the taxa were elliptic, obovate, oblong, or rotund, and their surfaces were generally alveolate with different ornamentations. Some nutlets had longitudinal ridges. The indumentum varied among unrelated species and showed some significant similarities within related species. In Flora of Turkey sect. Teucrium was divided into 2 groups according to leaf fragmentation and …

Go to article

Syntaxonomic Analysis Of The Preforest And Forest Vegetation In The Thermo- And Eumediterranean Zone Around Antalya Gulf, Turkey, Lati̇f Kurt, Ali̇ Osman Ketenoğlu, Yildirim Akman, Ebru Özdeni̇z, Fatoş Şekerci̇ler, Ayşenur Bölükbaşi, Beste Gi̇zem Özbey Jan 2015

Syntaxonomic Analysis Of The Preforest And Forest Vegetation In The Thermo- And Eumediterranean Zone Around Antalya Gulf, Turkey, Lati̇f Kurt, Ali̇ Osman Ketenoğlu, Yildirim Akman, Ebru Özdeni̇z, Fatoş Şekerci̇ler, Ayşenur Bölükbaşi, Beste Gi̇zem Özbey

Turkish Journal of Botany

The aim of the current study was to reveal the syntaxonomical structure of Pinus brutia Ten. Forests and the preforest communities in the vicinity of Antalya Gulf. Of the preforest communities, Dorsytaecho hastatae-Oleutum oleastri ass. Nova is individualized as a paraclimax association. Although little is known about the syntaxonomy of the communities of cliff, rupicolous, and mural communities in the thermomediterranean zone, these are connected with the classes Asplenietea trichomanis (Br.-Bl. İn Meier and Br.-Bl. 1934) Oberd. 1977 and Onosmetalia frutescentis Quézel 1964. In the west of the gulf, Phlomido bourgaei-Pinetum brutiae Akman et al. 1998 and its three subassociations …

Go to article

Expanding The Understanding Of A Forest Ectomycorrhizal Community By Combining Root Tips And Fruiting Bodies: A Case Study Of Tuber Magnatum Stands, Giorgio Lalli, Marco Leonardi, Marilena Oddis, Giovanni Pacioni, Elena Salerni, Mirco Iotti, Alessandra Zambonelli Jan 2015

Expanding The Understanding Of A Forest Ectomycorrhizal Community By Combining Root Tips And Fruiting Bodies: A Case Study Of Tuber Magnatum Stands, Giorgio Lalli, Marco Leonardi, Marilena Oddis, Giovanni Pacioni, Elena Salerni, Mirco Iotti, Alessandra Zambonelli

Turkish Journal of Botany

A survey of both ectomycorrhizal (ECM) root tips and fruiting bodies of ECM fungi was carried out during a four-year period (2009-2012) in two similar forest stands in central Italy, previously investigated in detail being habitats of the Italian white truffle Tuber magnatum Pico. This research is one of the few conducted in mixed forest stands and, for the first time, it took into account the cryptic fungi (corticiaceous, hypogeous, and sclerotia). This survey led to an exhaustive description of the ECM community by integrating all the 197 taxa recorded (147 species as fruiting bodies, 65 as ectomycorrhizas, and 15 …

Go to article

Changes In Epilithic Diatom Communities And Periphytic Biomass Downstream Of A Reservoir On A Mediterranean River (Calabria Region, S Italy), Luana Gallo, Maurizio Battegazzore, Anna Corapi, Lucio Lucadamo Jan 2015

Changes In Epilithic Diatom Communities And Periphytic Biomass Downstream Of A Reservoir On A Mediterranean River (Calabria Region, S Italy), Luana Gallo, Maurizio Battegazzore, Anna Corapi, Lucio Lucadamo

Turkish Journal of Botany

Diatom community structure and morphotype classification were studied and periphyton biomass, course particulate organic matter (CPOM), hydrogeomorphological parameters, and nutrient concentrations were measured at 4 stations downstream of the Cecita dam (Mucone River) and at 3 control sites located on different tributaries of the Mucone River in May, August, and November 2005. The lowest values of current velocities and the highest amounts of sand deposition and CPOM accumulation were detected at the stations closest to the dam. Downstream, the confluence with the first permanent tributary (Cerreto River) of the Mucone showed a "rhythral" morphology, similar to that of the control …

Go to article

Phylogeny Of Korean Opuntia Spp. Based On Multiple Dna Regions, Krishnamoorthy Srikanth, Sung Soo Whang Jan 2015

Phylogeny Of Korean Opuntia Spp. Based On Multiple Dna Regions, Krishnamoorthy Srikanth, Sung Soo Whang

Turkish Journal of Botany

Although Opuntia species are of high agronomic value in Korea, the taxonomic position of Korean Opuntia species has never been investigated. The taxonomic position of Korean Opuntia spp. Within the tribe Opuntieae was examined based on DNA sequence analysis of matK, trnL-F, atpB-rbcl, and ITS regions. The total amplified sequence length was 2977 bp; only 18 parsimonious informative sites were present, even though they belonged to different species. A phylogenetic tree using both the maximum likelihood method with 2000 bootstrap replications and Bayesian posterior probabilities was constructed. The new forma, Opuntia humifusa f. Jeollaensis, used in this study was placed …

Go to article

Reproductive Biology Of The Narrow Endemic Anchusa Littorea Moris (Boraginaceae), An Endangered Coastal Mediterranean Plant, Donatella Cogoni, Giuseppe Fenu, Gianluigi Bacchetta Jan 2015

Reproductive Biology Of The Narrow Endemic Anchusa Littorea Moris (Boraginaceae), An Endangered Coastal Mediterranean Plant, Donatella Cogoni, Giuseppe Fenu, Gianluigi Bacchetta

Turkish Journal of Botany

Phenological and reproductive patterns are fundamental life-history components in the life cycle of plants. In this study, we analyzed phenological and reproductive data at the plant and population levels of the narrow endemic Anchusa littorea Moris, an endangered annual plant species growing in a few small patches at the Is Arenas dune system (SW Sardinia, Italy). Individuals from the main 2 patches were evaluated during a 4-year study period: plants were monitored on a monthly basis in each reproductive phenophase. To assess phenological variability within and among populations, an approach based on the Shannon-Wiener diversity index and the Morisita-Horn similarity …

Go to article

Floral Function In Relation To Floral Structure In Two Periploca Species (Periplocoideae) Apocynaceae, Samia Heneidak, Yougasphree Naidoo Jan 2015

Floral Function In Relation To Floral Structure In Two Periploca Species (Periplocoideae) Apocynaceae, Samia Heneidak, Yougasphree Naidoo

Turkish Journal of Botany

This study comprises an investigation into the floral function in relation to the floral structure of Periploca aphylla and P. Angustifolia, using light and scanning electron microscopy. Both species display the following floral structures: style-head bearing pollen translators, shelf-like nectaries, staminal feet, nectar-collecting troughs, trisegmented corolline corona lobes and corolla lobes, and anthers and nectaries covered by unicellular hairs. Lateral segments of adjacent corona lobes are fused with half of the adaxial base of the adjacent corolla lobes, creating openings through which pollinators can reach the nectar-collecting troughs in the corolla base. Flowers are rotate with spreading corolla lobes and …

Go to article

Towards A New Classification Of Salvia S.L.: (Re)Establishing The Genus Pleudia Raf., Maria Will, Natalie Schmalz, Regine Classen-Bockhoff Jan 2015

Towards A New Classification Of Salvia S.L.: (Re)Establishing The Genus Pleudia Raf., Maria Will, Natalie Schmalz, Regine Classen-Bockhoff

Turkish Journal of Botany

Salvia L. İn its traditional circumscription is the largest genus within the mint family. To date, the magnitude of the task has rendered it difficult to provide a genus-wide revision based on morphological data. Current molecular investigations based on a dense taxon sampling representing the whole phenotypic diversity and distribution range of Salvia confirmed that the genus is polyphyletic. Salvia species fall in 4 distinct clades, although all of them, except Clade IV, also include non-Salvia genera. A taxonomic revision is thus urgently needed with two different approaches that have to be considered: (1) to include the 5 morphologically distinct …

Go to article

First Prev Next Last