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Articles 31 - 60 of 67
Full-Text Articles in Life Sciences
Retracted Article - A Metabolic Diversion In The Upstream Thiol Cascade Of Cysteine-Deficient Lentil (Lens Culinaris Medik.) Mutants Induces Arsenate Tolerance By Modulating Downstream Antioxidant Defense, Dibyendu Talukdar
Turkish Journal of Botany
A careful analysis of the paper entitiled A metabolic diversion in the upstream thiol cascade of cysteine-deficient lentil (Lens culinaris Medik.) mutants induces arsenate tolerance by modulating downstream antioxidant defense published in Turk J Bot 2016 (4) has led to conclusion that there exist some modification on the pictures used. Therefore Editorial Board of Turkish Journal of Botany decided to retract this article.
Two New Achillea L. (Asteraceae) Species From Turkey, Zeki̇ Aytaç, Hayri̇ Duman, Murat Eki̇ci̇
Two New Achillea L. (Asteraceae) Species From Turkey, Zeki̇ Aytaç, Hayri̇ Duman, Murat Eki̇ci̇
Turkish Journal of Botany
Two new Achillea species, Achillea adenii Aytaç & M.Ekici and Achillea baltai H.Duman & Aytaç sp. nov. of sect. Santolinoidea DC. (Asteraceae), are described and illustrated as new species. A. adenii grows at Babadağ in Muğla Province (southwestern Anatolia), while A. baltai grows at Aladağlar in Niğde Province. Diagnostic morphological characters, which are useful in discriminating the two new species from their close relatives, A. sintenisii Hub.-Mor., A. sipikorensis Hausskn. & Bornm., and A. armenorum Boiss. & Hausskn., are presented. Some notes on the ecology, pollen and seed morphology, conservation status, and distributions of the new species and a key …
Muscari Elmasii Sp. Nova (Asparagaceae): A New Species From Western Anatolia, Turkey, Hasan Yildirim
Muscari Elmasii Sp. Nova (Asparagaceae): A New Species From Western Anatolia, Turkey, Hasan Yildirim
Turkish Journal of Botany
Muscari elmasii Yıldırım (Asparagaceae) is described as a new species to science. It is endemic to the western Anatolia region of Turkey. M. elmasii is known from a single locality in Muğla Province. It is related to M. weissii and M. massayamum by morphological features and shows some similarities in terms of morphological characters and the same distribution area to M. mirum. Diagnostic morphological characters are discussed and compared with those of related taxa. It is easily distinguished from related species by its especially sessile or subsessile and mostly pinkish flowers; relatively longer, cylindrical with sharply-angled shoulder perigon tube; yellowish-green …
Bellevalia Vuralii B.Şahin & Aslan (Asparagaceae): A New Species From Se Turkey, Bi̇lal Şahi̇n, Serdar Aslan, Osman Karabacak, Esra Marti̇n
Bellevalia Vuralii B.Şahin & Aslan (Asparagaceae): A New Species From Se Turkey, Bi̇lal Şahi̇n, Serdar Aslan, Osman Karabacak, Esra Marti̇n
Turkish Journal of Botany
Bellevalia vuralii B.Şahin & Aslan is described as a new species of Bellevalia from southeast Turkey. As well as its morphological characteristics and classification with regards to sections, its description, ecology, and relationship with related species are presented and discussed. The somatic chromosome number of these species was defined to be 2n = 8.
Prospero Cudidaghense Sp. Nov. (Asparagaceae): A New Species From Southeastern Anatolia, Turkey, Mehmet Firat, Hasan Yildirim
Prospero Cudidaghense Sp. Nov. (Asparagaceae): A New Species From Southeastern Anatolia, Turkey, Mehmet Firat, Hasan Yildirim
Turkish Journal of Botany
Prospero cudidaghense Fırat & Yıldırım (Asparagaceae) is described as a species new to science based on morphological studies. It is endemic to the eastern Anatolian region of Turkey. P. cudidaghense is known from a single locality on Cudi Mountain, located in Şırnak Province. It is an isolated taxon of the genus Prospero. It is related to P. autumnale and P. seisumsianum. Diagnostic morphological characters are discussed and compared with those of related taxa. It can be easily distinguished from all taxa in the genus Prospero by its spring flowering time, synanthous leaves, and chasmophytic habit.
Alyssum Amasianum (Brassicaceae), A New Species From North Anatolia, Turkey, Osman Karabacak, Ahmet Duran, Mustafa Çeli̇k
Alyssum Amasianum (Brassicaceae), A New Species From North Anatolia, Turkey, Osman Karabacak, Ahmet Duran, Mustafa Çeli̇k
Turkish Journal of Botany
Herein a new species, Alyssum amasianum, is described and illustrated from North Anatolia. The new species is very similar to A. hirsutum subsp. caespitosum but differs in the shape and indumentum of leaves, trichome type of the fruits, and margin of the seeds. The ecology, biogeography, and conservation status of the new species are discussed. The leaf, fruit, and seed surface micromorphology of A. amasianum, A. hirsutum subsp. caespitosum, A. hirsutum subsp. hirsutum, A. strigosum subsp. strigosum, and A. xanthocarpum were also examined by scanning electron microscope.
Synopsis Of The Sect. Hymenocoleus, Sect. Hymenostegis, And Sect. Macrophyllium Belonging To Astragalus (Fabaceae) In Turkey, Seher Karaman Erkul, Zeki̇ Aytaç, Murat Eki̇ci̇
Synopsis Of The Sect. Hymenocoleus, Sect. Hymenostegis, And Sect. Macrophyllium Belonging To Astragalus (Fabaceae) In Turkey, Seher Karaman Erkul, Zeki̇ Aytaç, Murat Eki̇ci̇
Turkish Journal of Botany
A synopsis of the sect. Hymenocoleus Bunge, sect. Hymenostegis Bunge, and sect. Macrophyllium Boiss. belonging to Astragalus L. in Turkey is given based on a revisional study carried out in Turkey. As a result of this study, an account of 19 species including keys and general distribution as well as their conservation status in Turkey is given. It is determined that A. narmanicus Karaman & Aytaç is new to science and A. expetitus Maassoumi, A. pereshkhoranicus Maassoumi & F.Ghahrem., and A. marivanensis Maassoumi & Podlech do not exist in Turkey. Additionally, the name of the sect. Hymenocoleus is preserved.
A New Species Of Lepiota, Lepiota Lahorensis, From Lahore, Pakistan, Tayyaba Qasim, Abdul Khalid, Else Vellinga
A New Species Of Lepiota, Lepiota Lahorensis, From Lahore, Pakistan, Tayyaba Qasim, Abdul Khalid, Else Vellinga
Turkish Journal of Botany
Lepiota lahorensis sp. nov. is described from Lahore, Pakistan. Its characterizing features are pinkish brown pileus with dark brown furfuraceous scales, oblong to ellipsoid spores, clavate cheilocystidia, and pileus covering made up of trichodermal elements without shorter elements at their base. The phylogenetic analysis based on nuclear ribosomal internal transcribed spacer sequence shows its unique position in sect. Ovisporae.
Haematococcus: A Successful Air-Dispersed Colonist In Ephemeral Waters Is Rarely Found In Phytoplankton Communities, Savvas Genitsaris, Natasa Stefanidou, Matina Katsiapi, Elisabeth Vardaka, Konstantinos Ar. Kormas, Ulrich Sommer, Maria Moustaka-Gouni
Haematococcus: A Successful Air-Dispersed Colonist In Ephemeral Waters Is Rarely Found In Phytoplankton Communities, Savvas Genitsaris, Natasa Stefanidou, Matina Katsiapi, Elisabeth Vardaka, Konstantinos Ar. Kormas, Ulrich Sommer, Maria Moustaka-Gouni
Turkish Journal of Botany
In a literature search, the presence of Haematococcus in phytoplankton communities and its biogeography were investigated. Haematococcus, although showing a wide biogeographical distribution, has been rarely found in phytoplankton communities. Simultaneously, the colonization potential of air-dispersed Haematococcus in ephemeral waters and its interactions with coexisting phytoplankton taxa were examined by microscopy and molecular methods. Haematococcus was a successful colonist, appearing among the first taxa in the experimental containers. According to principal component analysis, Haematococcus growth rate was negatively correlated with the abundance and species richness of the other autotrophs. Furthermore, a negative correlation between Haematococcus and Chlamydomonas and a positive …
Two New Records And One Confirmation Of The Genus Poa L. (Poaceae) For The Flora Of Turkey, Evren Cabi̇, Robert J. Soreng
Two New Records And One Confirmation Of The Genus Poa L. (Poaceae) For The Flora Of Turkey, Evren Cabi̇, Robert J. Soreng
Turkish Journal of Botany
The ongoing revision of the genus Poa in Turkey has resulted in two new Poa records for the Flora of Turkey as Poa pratensis subsp. irrigata (Lindm.) H. Lindb. and Poa eigii Feinbrun. In addition, the presence of Poa palustris L. is confirmed. A brief discussion and an illustration for each taxon are provided.
Isolation And Expression Analysis Of Three Different Flowering Genes(Ttlfy, Ttap1, And Ttap2) From An Unusual Legume Species, Thermopsis Turcica, Süleyman Cenkci̇, Mustafa Kargioğlu, Alperen Dedeoğlu, Büşra Kahraman, Yaşar Karakurt
Isolation And Expression Analysis Of Three Different Flowering Genes(Ttlfy, Ttap1, And Ttap2) From An Unusual Legume Species, Thermopsis Turcica, Süleyman Cenkci̇, Mustafa Kargioğlu, Alperen Dedeoğlu, Büşra Kahraman, Yaşar Karakurt
Turkish Journal of Botany
LEAFY (LFY), APETALA1 (AP1), and APETALA2 (AP2) genes encode three different transcription factors that control and regulate flower initiation and development in Arabidopsis. By using 3'- and 5'-RACE analysis, we isolated and sequentially characterized TtLFY (a LEAFY-like gene), TtAP1 (a MADS-box-like gene), and TtAP2 (an AP2/ERBF-like gene) in Thermopsis turcica, an unusual endemic legume species with three free carpellated flower structure. Semiquantitative RT-PCR analysis for 18 different vegetative and reproductive tissues of T. turcica indicated TtLFY transcripts mainly in the shoot tips and young floral buds and TtAP1 transcripts in the sepals and petals; however, TtAP2 transcripts were detected in …
Preliminary Analysis On The Transcripts Involved In Resistance Responses To Eumusae Leaf Spot Disease Of Banana Caused By Mycosphaerella Eumusae, A Recent Add-On Of The Sigatoka Disease Complex, Asoor Santhanam Saravanakkumar, Subbaraya Uma, Raman Thangavelu, Suthanthiram Backiyrani, Marimuthu Somasundaram Saraswathi, Viswanathan Sriram
Preliminary Analysis On The Transcripts Involved In Resistance Responses To Eumusae Leaf Spot Disease Of Banana Caused By Mycosphaerella Eumusae, A Recent Add-On Of The Sigatoka Disease Complex, Asoor Santhanam Saravanakkumar, Subbaraya Uma, Raman Thangavelu, Suthanthiram Backiyrani, Marimuthu Somasundaram Saraswathi, Viswanathan Sriram
Turkish Journal of Botany
Eumusae leaf spot disease, caused by Mycosphaerella eumusae, is widely distributed in different banana growing countries in Asia and Africa, causing severe losses in yield and quality of banana. The aim of this study was to identify the differentially expressed defense responsive genes through subtractive suppression hybridization (SSH) in the Musa-M. eumusae interaction system. In this method, leaf samples collected at different intervals between 0 and 72 h postinoculation (hpi) of M. eumusae from resistant (Manoranjitham-AAA) and susceptible (Grand Naine-AAA) cultivars were subjected to cDNA-SSH library construction. From the SSH library, 832 clones having the insert were selected and sequenced. …
Phylogenetic Relationships Among Native Oxytropis Species In Turkey Using The Trnl Intron, Trnl-F Igs, And Trnv Intron Cpdna Regions, Ayten Tekpinar, Seher Karaman Erkul, Zeki̇ Aytaç, Zeki̇ Kaya
Phylogenetic Relationships Among Native Oxytropis Species In Turkey Using The Trnl Intron, Trnl-F Igs, And Trnv Intron Cpdna Regions, Ayten Tekpinar, Seher Karaman Erkul, Zeki̇ Aytaç, Zeki̇ Kaya
Turkish Journal of Botany
We tested the phylogenetic utility of three chloroplast DNA loci, i.e. the trnL(UAA) intron, trnL(UAA)-F(GAA) intergenic spacer (IGS), and trnV(UAC) intron, across thirteen native Oxytropis species. Our objective was to determine whether any of these chloroplast DNA markers could be beneficial to figure out phylogenetic relationships among Oxytropis species. To increase the interspecific sampling, nine sequences of the trnL intron and trnL-F regions were retrieved from GenBank and included in the analyses. No sequence of the trnV intron region was available in the database and so only sequences of the native species were used for the analyses. Phylogenies derived from …
Identification Of Differentially Expressed Genes From Fusarium Oxysporum F. Sp Cubense And Trichoderma Asperellum (Prr2) Interaction In The Susceptible Banana Cultivar Grand Naine, Thangavelu Raman, Varun Gopalakrishnan, Ganga Devi Perumal
Identification Of Differentially Expressed Genes From Fusarium Oxysporum F. Sp Cubense And Trichoderma Asperellum (Prr2) Interaction In The Susceptible Banana Cultivar Grand Naine, Thangavelu Raman, Varun Gopalakrishnan, Ganga Devi Perumal
Turkish Journal of Botany
Identification of defense-related genes in the host is one of the most essential steps in understanding disease resistance mechanisms in plants. In this study, a suppression subtractive hybridization (SSH) library was constructed to study differential gene expression in banana plants mediated through a Fusarium wilt pathogen (Fusarium oxysporum f.sp cubense - Foc) and its interaction with the Foc effective biocontrol agent Trichoderma asperellum (prr2). Here cDNAs from the roots of banana cv. Grand Naine infected by Foc were used as the driver and cDNAs from Foc + T. asperellum inoculated banana plants as the tester population. After hybridization and cloning, …
Validation Of Rapd Markers Associated With Frost Tolerancein Winter Faba Bean (Vicia Faba L.), Ahmed Sallam, Regina Martsch
Validation Of Rapd Markers Associated With Frost Tolerancein Winter Faba Bean (Vicia Faba L.), Ahmed Sallam, Regina Martsch
Turkish Journal of Botany
A set of 189 single seed lines (validation set, v-set), derived from a natural crossing crossing between 11 founder lines, were used as a different genetic background to validate markers associated with frost tolerance and leaf fatty acid composition content in the winter faba bean. These lines were evaluated in 20 replications with lattice design under three freezing temperatures (-16 °C, -18 °C, and -19 °C). Two morphological traits, regrowth after frost (REG) and area under symptom progress curve (AUSPC), were scored. In addition, leaf fatty acid composition content was analyzed after hardening conditions (without frost). High significant correlation was …
Ultrastructural Observations In Somatic Embryogenesis Of Natural Tetraploid Trifolium Pratense L., Hati̇ce Çölgeçen, Hati̇ce Nurhan Büyükkartal, Ufuk Koca Çalişkan
Ultrastructural Observations In Somatic Embryogenesis Of Natural Tetraploid Trifolium Pratense L., Hati̇ce Çölgeçen, Hati̇ce Nurhan Büyükkartal, Ufuk Koca Çalişkan
Turkish Journal of Botany
Previous reports of plant regeneration of natural tetraploid T. pratense L. `Elçi' could be realized only through the apical meristem calli. In order to proceed to the production stage, other regeneration methods need to be tried. Aseptic seedlings were used for the production of somatic embryos through various 2,4-D and kinetin trials. Nonuniform external callus cells with translucent cytoplasm were observed in various developmental stages of somatic embryos. Beneath these cells, there were uniformly aligned, dark-stained embryo cells with dense cytoplasm. Despite the similar developmental stages and cell characteristics of zygotic and somatic embryos, the walls of somatic embryo cells …
A New Species Of Plectranthus (Lamiaceae) From Saudi Arabia, Kadry Abdel Khalik
A New Species Of Plectranthus (Lamiaceae) From Saudi Arabia, Kadry Abdel Khalik
Turkish Journal of Botany
Plectranthus hijazensis Abdel Khalik (Lamiaceae) is described as a new species from Al-Baha Province in Saudi Arabia. Information given on the new species includes a taxonomic description and its affinity to Plectranthus asirensis L. A key to Plectranthus species of Saudi Arabia is provided, and the relationships of the species and the relevant morphological characters, particularly seed, pollen grains, trichomes, and anatomy of stem and leaf, are discussed. A distribution map of the new species and related species is provided.
First Molecular Records Of Potentially Harmful Planktonic Dinoflagellatesfrom The Southern Black Sea, Özgür Baytut, Cem Tolga Gürkanli, Eda Deni̇z, İbrahi̇m Özkoç, Ari̇f Gönülol
First Molecular Records Of Potentially Harmful Planktonic Dinoflagellatesfrom The Southern Black Sea, Özgür Baytut, Cem Tolga Gürkanli, Eda Deni̇z, İbrahi̇m Özkoç, Ari̇f Gönülol
Turkish Journal of Botany
The aim of this study was to identify dinoflagellate species from the Black Sea (Samsun coast) using conventional and molecular phylogenetic methods. Water samples were collected using a plankton net with 22 µm pores. Dinoflagellate cells were documented under a light microscope and were then isolated for the single-cell PCR procedure. Phylogenetic inference showed that the isolates collected from the study area were affiliated with various harmful taxa: Dinophysis acuta Ehrenberg and Phalacroma rotundatum (Claparéde & Lachmann) Kofoid & Michener from dinophysioids, and Prorocentrum compressum (Bailey) Abé ex Dodge, P. cordatum (Ostenfeld) Dodge, and P. micans Ehrenberg from prorocentroids. In …
Lectotypification Of Three Indian Endemic Taxa Of Pittosporum (Pittosporaceae), Rajeev Kumar Singh
Lectotypification Of Three Indian Endemic Taxa Of Pittosporum (Pittosporaceae), Rajeev Kumar Singh
Turkish Journal of Botany
Three recognized Indian endemic taxa of Pittosporum Banks. ex Gaertn. are lectotypified, namely Pittosporum dasycaulon Miq., P. humile Hook. f. & Thomson, and P. neelgherrense Wight & Arn.
A Taxonomic Revision Of The Genus Cirsium Mill. Sect. Cirsium(Asteraceae: Cardueae) In Turkey, Bayram Yildiz, Turan Arabaci, Tuncay Di̇rmenci̇, Serkan Köstekci̇
A Taxonomic Revision Of The Genus Cirsium Mill. Sect. Cirsium(Asteraceae: Cardueae) In Turkey, Bayram Yildiz, Turan Arabaci, Tuncay Di̇rmenci̇, Serkan Köstekci̇
Turkish Journal of Botany
In this study, the members of the genus Cirsium Mill. sect. Cirsium (Asteraceae: Cardueae) in Turkey are revised. The species C. eliasianum Kit Tan & Sorger is regarded as a synonym of C. frickii Fisch. & C.A.Mey. The name C. alatum subsp. alatum was misapplied for C. elodes M.Bieb. and C. elodes was misapplied in Turkey for C. subinerme Fisch. & C.A.Mey. In addition, two new hybrids, C. × prativagum Petr. and C. × woronowii Petr., are newly recorded for the flora of Turkey. The lectotype of C. pseudopersonata Boiss. & Balansa ex Boiss. subsp. kusnezowianum (Sommier & Levier) Petr. …
New Records Of Basidiomycota From Trabzon, Tokat, And İstanbul Provinces In Turkey, Ertuğrul Sesli̇, İbrahi̇m Türkekul, Ilgaz Akata, Tuula Ni̇skanen
New Records Of Basidiomycota From Trabzon, Tokat, And İstanbul Provinces In Turkey, Ertuğrul Sesli̇, İbrahi̇m Türkekul, Ilgaz Akata, Tuula Ni̇skanen
Turkish Journal of Botany
Basidiomata were collected from Trabzon, Tokat, and İstanbul provinces between 2011 and 2015. Standard methods were used during collecting and microscopic investigations. Cantharellus ianthinoxanthus (R.Maire) Kühner, Cortinarius humicola (Quél.) Maire, Cortinarius obtusorum Rob.Henry, Cortinarius rubicundulus (Rea) A.Pearson, Cortinarius sordescens Rob.Henry, Crinipellis subtomentosa
Plant Biomass: Insights From Imaging Cell Walls Using Molecular Probes, Utku Avci
Plant Biomass: Insights From Imaging Cell Walls Using Molecular Probes, Utku Avci
Turkish Journal of Botany
Cell walls are an important and growing subject of research in plant biology. In the last decade, there has been an increasing interest in using cell walls as feedstock for the production of second generation biofuels. This has resulted in an expansion in the number of cell wall studies and has highlighted the need for a better understanding of cell wall structure and function. Cell walls are composed of polymers with complex and dynamic structures that vary between cell types and developmental stages as well as between taxonomic groups of plants. To address the diversity of glycans that form the …
Genetic Relationships Among The Genera Cicer L., Lathyrus L., Lens Mill., And Vicia L., Together With Similarity Of Lens Taxa Based On Morphological And Aflp Markers, Zeynep Yildizdoğan, Cengi̇z İkten, Nedi̇m Mutlu, Cengi̇z Toker
Genetic Relationships Among The Genera Cicer L., Lathyrus L., Lens Mill., And Vicia L., Together With Similarity Of Lens Taxa Based On Morphological And Aflp Markers, Zeynep Yildizdoğan, Cengi̇z İkten, Nedi̇m Mutlu, Cengi̇z Toker
Turkish Journal of Botany
The molecular characterization of the seven taxa in the genus Lens Mill. with Vicia montbretii has not been performed, and species of the genera Vicia L., Lathyrus L., and Cicer L. using AFLP markers have not been elucidated so far. The objectives of the present study were the assessment of (i) genetic relationships among the genera Lens, Vicia, Lathyrus, and Cicer based on AFLP markers, (ii) relationships within the genus Lens including the accessions of L. lamottei Czefr., L. tomentosus Ladiz., and L. odemensis Ladiz., based on morphological and AFLP data, and (iii) position of the species Vicia montbretii (Fisch. …
Comparison Of Rdna Regions (Its, Lsu, And Ssu) Of Some Aspergillus, Penicillium, And Talaromyces Spp., Rasi̇me Demi̇rel
Comparison Of Rdna Regions (Its, Lsu, And Ssu) Of Some Aspergillus, Penicillium, And Talaromyces Spp., Rasi̇me Demi̇rel
Turkish Journal of Botany
Aspergillus, Penicillium, and Talaromyces spp. are commonly found worldwide and include industrially and medicinally important members. These genera are deeply related with life from soil to health hazards via their industrial products, surface proteins, biodiversity, food spoilage, mycotoxins, etc. These three genera progressively encounter important taxonomic revisions, such as the one fungus-one name concept, and various methods are available to establish their evolutionary and phylogenetic relationships. Besides morphological, microscopic, and extrolite analyses, nucleotide sequence analysis is the most preferred method. In particular, rDNA regions, such as the internal transcribed spacer (ITS), large subunit (LSU), and small subunit (SSU), are commonly …
In Vitro Seed Germination, Plantlet Growth, Tuberization, And Syntheticseed Production Of Serapias Vomeracea (Burm.F.) Briq., Ersan Bektaş, Atalay Sökmen
In Vitro Seed Germination, Plantlet Growth, Tuberization, And Syntheticseed Production Of Serapias Vomeracea (Burm.F.) Briq., Ersan Bektaş, Atalay Sökmen
Turkish Journal of Botany
Orchids are considered recalcitrant plants in in vitro propagation. Due to the lack of appropriate micropropagation techniques for mass production and damage to their ecological distribution posed by local gatherers, these species are threatened with extinction, including Serapias vomeracea (Burm.f.) Briq. In this research, we put forward a complete micropropagation method covering in vitro micropropagation, synthetic seed formation, germination in soil, and acclimatization to ambient conditions. To the best of our knowledge this is the first report of successful synthetic seed formation and germination of S. vomeracea. Initially, seeds were germinated in different culture media and also media supplemented with …
Abiotic Factors Affecting The Distribution Of Oaks In Lebanon, Jean Stephan, Lara Chayban, Federico Vessella
Abiotic Factors Affecting The Distribution Of Oaks In Lebanon, Jean Stephan, Lara Chayban, Federico Vessella
Turkish Journal of Botany
This study is a first tentative attempt to understand the driving abiotic factors affecting the distribution of 7 oak taxa and 3 hybrids in Lebanon and to elucidate differences amongst the ecological niche. A field survey was conducted all over Lebanon, where taxa at 91 points were georeferenced and inventoried. GIS tools were used to overlay attributed data for the studied parameters including biogeographic, bioclimatic, and orographic parameters. Discriminant factor analysis (DFA) was performed to evaluate the variables maximizing the variance among oak species and to point out the most discriminatory factors shaping their actual distribution. The results showed that …
Labellum Micromorphology Of Some Orchid Genera (Orchidaceae) Distributed In The Black Sea Region In Turkey, Şenay Süngü Şeker, Mustafa Kemal Akbulut, Gülcan Şenel
Labellum Micromorphology Of Some Orchid Genera (Orchidaceae) Distributed In The Black Sea Region In Turkey, Şenay Süngü Şeker, Mustafa Kemal Akbulut, Gülcan Şenel
Turkish Journal of Botany
A detailed micromorphological analysis of the labellum was carried out using both light and scanning electron microscopy on 14 genera (Anacamptis, Cephalanthera, Coeloglossum, Dactylorhiza, Gymnadenia, Himantoglossum, Limodorum, Neottia, Orchis, Ophrys, Platanthera, Serapias, Spiranthes, and Steveniella) of Orchidaceae in Turkey. In the samples, various epidermal features were identified in the spur that developmentally are invaginations of the labellum and the adaxial surface of the labellum. Typical secretory cells and inclusions such as starch or calcium oxalate crystals of different sizes and shapes were found within the structure of individuals. In many genera, characteristically shaped secretory trichomes and papillae were concentrated at …
Diversity And Ecology Of Benthic Algae In Karagöl Lake, Karagöl-Saharanational Park (Şavşat, Artvin, Turkey), Bülent Akar, Bülent Şahi̇n
Diversity And Ecology Of Benthic Algae In Karagöl Lake, Karagöl-Saharanational Park (Şavşat, Artvin, Turkey), Bülent Akar, Bülent Şahi̇n
Turkish Journal of Botany
Benthic algal flora of Karagöl Lake, its seasonal variation, and the physical and chemical parameters of the water were studied between October 2008 and September 2010. The algal flora consisted of 112 taxa belonging to the divisions Charophyta (41), Chlorophyta (33), Cyanobacteria (18), Euglenozoa (17), Miozoa (2), and Ochrophyta (1). Six desmid taxa found in this research are new records for the freshwater algal flora of Turkey. The qualitative dominance of benthic taxa typical of slightly alkaline and mesotrophic ecosystems was observed. The qualitative and seasonal variations in epipelic taxa analyzed were dependent on the physicochemical characteristics of the water. …
Two New Records And A Confirmation For The Vascular Flora Of Turkey, Hasan Yildirim, Yusuf Altioğlu, Ri̇yat Gül, Meli̇ha Gemi̇ci̇
Two New Records And A Confirmation For The Vascular Flora Of Turkey, Hasan Yildirim, Yusuf Altioğlu, Ri̇yat Gül, Meli̇ha Gemi̇ci̇
Turkish Journal of Botany
Campanula raddeana Trautv. (Campanulaceae), based on samples collected from Çıldır (A9 Ardahan), and Galatella cretica Gand. (Asteraceae), based on samples collected from Marmaris (C1 Muğla), were recorded as new findings for the Flora of Turkey. In addition, Silene samia Melzh. & Christod. (Caryophyllaceae) was confirmed in Turkey based on samples from four localities in southwest Anatolia. Detailed descriptions, locality information, and distribution maps of the cited taxa were also given in the present study.
Relationships Between Some Endogenous Signal Compounds And The Antioxidantsystem In Response To Chilling Stress In Maize (Zea Mays L.) Seedlings, Nevzat Esi̇m, Ökkeş Atici
Relationships Between Some Endogenous Signal Compounds And The Antioxidantsystem In Response To Chilling Stress In Maize (Zea Mays L.) Seedlings, Nevzat Esi̇m, Ökkeş Atici
Turkish Journal of Botany
This study investigated the correlation between endogenous levels of some signal compounds [nitric oxide (NO), salicylic acid (SA), abscisic acid (ABA)] and the antioxidant system in response to chilling stress in maize (Zea mays L.). Seedlings grown for 12 or 19 days under normal conditions (24/20 °C) were exposed to chilling stress (10/7 °C) for 2 days. The levels of NO, SA, ABA, hydrogen peroxide (H2O2), superoxide anion (O2.-), and malondialdehyde (MDA) were determined in leaves of seedlings harvested on day 14 and day 21. In the same seedlings, the activities of superoxide dismutase (SOD), peroxidase (POX), catalase (CAT), and …