Spatial Pattern Analysis Of Peganum Harmala On The Salted Lower Chelif Plain, Algeria,
2013
TÜBİTAK
Spatial Pattern Analysis Of Peganum Harmala On The Salted Lower Chelif Plain, Algeria, Adda Ababou, Mohammed Chouieb, Abdelkader Bouthiba, Djamel Saidi, Mahfoud M'Hamedi Bouzina, Khalladi Mederbal
Turkish Journal of Botany
Peganum harmala L. (Zygophyllaceae), native to arid and semiarid rangeland, has been widely studied biochemically, pharmaceutically, and medicinally, but is largely unknown ecologically. In the lower Chelif, Algeria, this plant is largely present and shows a clear clumped pattern, which indicates the strong effects of environmental conditions. Our redundancy analysis showed that the geographic distribution of this species was positively correlated with sand and pH and negatively correlated with conductivity, Na^+, and clay. The Gaussian model suggested that 9.4 mmhos/cm conductivity and sand contents greater than 40% are optimum for this plant. The spatial distribution map obtained through the kriging …
Spindle Irregularities, Chromatin Transfer, And Chromatin Stickiness During Male Meiosis In Anemone Tetrasepala (Ranunculaceae), Pawan Kumar Rana, Puneet Kumar, Vijay Kumar Singhal
Turkish Journal of Botany
Detailed cytological investigations performed in Anemone tetrasepala Royle from the Pangi Valley revealed the presence of various irregularities (spindle irregularities, chromatin transfer, chromatin stickiness, and nonsynchronous condensation of chromatin material) for the first time in the species that existed at diploid level (2n = 14). Spindle irregularities resulted in dyads, triads, polyads, and micronuclei in sporads during microsporogenesis and variable sized pollen grains and reduced fertility in pollen grains (85.38%). Direct fusion among proximate meiocytes resulted in the formation of syncyte pollen mother cells. Such syncytes yielded jumbo-sized pollen grains that were surely of unreduced nature in their genetic constitution. …
Size-Fractionated Phytoplankton And Nutrient Dynamics In The Inner Part Of İzmir Bay, Eastern Aegean Sea,
2013
TÜBİTAK
Size-Fractionated Phytoplankton And Nutrient Dynamics In The Inner Part Of İzmir Bay, Eastern Aegean Sea, Serkan Kükrer, Hasan Baha Büyükişik
Turkish Journal of Botany
İzmir Bay has been one of most polluted bays of the Mediterranean for a long time. When the 'Big Channel Project' was completed in 2000, sewage flow into the bay ended. Hence, the influence of creeks, which are the only source of water transportation to the inner bay, was investigated in the current study. Monthly samples of creek water and seawater were taken. Basic water quality variables and nutrients were measured. In addition, the phytoplankton community was arrayed into size fractions to assess the contribution of each size fraction to biomass and pigment concentrations. Analyses showed that the creek waters …
Taxonomic Revision Of Silene (Caryophyllaceae) Sections Siphonomorpha, Lasiostemones, Sclerocalycinae, Chloranthae, Tataricae, And Otites In Turkey, Kemal Yildiz, Ali̇ Hi̇kmet Çirpici
Turkish Journal of Botany
Forty-four Silene L. taxa belonging to the sections Siphonomorpha Otth, Lasiostemones Boiss., Sclerocalycinae Boiss., Chloranthae Rohrb., Tataricae Chowdhuri, and Otites (Adams.) Otth were studied. The Silene specimens used in the study were collected from different localities between 2005 and 2007. Their conservation status, phytogeographical regions, and distribution in Turkey were determined. Detailed drawings of the general view and flower from each species were added to the study. As a result of these detailed investigations, the conditions of some species having taxonomic problems were re-examined, and suggestions were proposed. The results produced 3 taxa that are new to science and 2 …
Anther Development And Cytochemistry In Asphodelus Aestivus (Asphodelaceae),
2013
TÜBİTAK
Anther Development And Cytochemistry In Asphodelus Aestivus (Asphodelaceae), Fi̇li̇z Vardar, Işil İsmai̇loğlu, Meral Ünal
Turkish Journal of Botany
Asphodelus aestivus Brot. (Asphodelaceae) anthers were analysed to provide a detailed understanding of the events that lead to pollen grain development, accompanied by cytochemical observations at different ontogenic stages. An anther locule of A. aestivus was bordered by 4 different layers: the tapetum, the middle layer, the endothecium, and the epidermis. At the tetrad stage, secretory tapetal cells enlarged maximally, while they showed degeneration at the young microspore stage. During the course of the degeneration, vacuolisation and reduction in the volume were conspicuous. Cytochemical analysis revealed that tapetal cells presented an intense reaction with regard to protein, insoluble polysaccharides, and …
Three Remarkable New Moss Records For South-West Asia From Northern Turkey,
2013
TÜBİTAK
Three Remarkable New Moss Records For South-West Asia From Northern Turkey, Güray Uyar, Muhammet Ören
Turkish Journal of Botany
Grimmia anomala Schimp., Pohlia filum (Schimp.) Mårtensson, and Hookeria acutifolia Hook. & Grev. are noteworthy moss species reported here for the first time in South-West Asia from specimens collected in north-eastern and north-western Turkey. The diagnostic characters, habitat preferences, illustrations, and updated ranges of the treated species are given together with notes comparing them with those of related taxa.
Succession Of Epiphytic Bryophytes In Cedrus Libani Forest On The Meydan Plateau (Aladağ),
2013
TÜBİTAK
Succession Of Epiphytic Bryophytes In Cedrus Libani Forest On The Meydan Plateau (Aladağ), Tülay Ezer, Recep Kara
Turkish Journal of Botany
The succession of epiphytic bryophytes was investigated in Cedrus libani A.Rich. forest on the Meydan Plateau (Aladağ). A total of 19 taxa (16 mosses, 3 liverworts) were recorded in 90 sampling relevés, 4 dm^2 each. Index of ecological significance (IES) was used to evaluate the ecological importance of the taxa in epiphytic habitats on tree trunks. Additionally, the epiphytic bryophyte succession of the cedar forest was analysed using multivariate classification techniques (TWINSPAN and DECORANA). The multivariate analysis results showed that the epiphytic bryophyte communities were divided into 2 main groups and 5 different subgroups associated with successional gradient. Moreover, habitat …
Seasonal Variability Of Phytoplankton In A Coastal Lagoon And Adjacent Open Sea In Pakistan,
2013
TÜBİTAK
Seasonal Variability Of Phytoplankton In A Coastal Lagoon And Adjacent Open Sea In Pakistan, Saima Latif, Zarrien Ayub, Ghazala Siddiqui
Turkish Journal of Botany
The coast of Pakistan (North Arabian Sea) is under the influence of the seasonal cycle of monsoons, which may result in 2 periods of elevated phytoplankton productivity, one during the north-east monsoon (December-February) and the other during the south-west monsoon (May-September). In the present study, elevated primary productivity in the Miani Hor Lagoon and adjacent open sea off Pakistan was found during the south-west monsoon (May-September) and spring inter-monsoon (March-April). The lowest phytoplankton abundance was recorded in the north-east monsoon period at both collection sites. A total of 65 species of diatoms and 32 species of dinoflagellates were identified in …
Minuartia Hamzaoglui (Caryophyllaceae), A New Species From Turkey,
2013
TÜBİTAK
Minuartia Hamzaoglui (Caryophyllaceae), A New Species From Turkey, Murat Koç, Ahmet Aksoy
Turkish Journal of Botany
Minuartia hamzaoglui M.Koç & Aksoy (Caryophyllaceae) is described as a new species of sect. Minuartia in Turkey. The specimens were collected from Mount Erciyes (Kayseri). The new species is related to Minuartia erythrosepala (Boiss.) Hand.-Mazz. var. erythrosepala. M. hamzaoglui is an endemic species which has a distribution in Central Anatolia. The differences between the species are discussed. Description, distribution, illustration, and conservation status of the new species are given. Seed structures were examined by scanning electron microscopy.
Weed Flora In The Reclaimed Lands Along The Northern Sector Of The Nile Valley In Egypt,
2013
TÜBİTAK
Weed Flora In The Reclaimed Lands Along The Northern Sector Of The Nile Valley In Egypt, Monier Abd El-Ghani, Ashraf Soliman, Rim Hamdy, Ebtesam Bennoba
Turkish Journal of Botany
Deserts comprise about 95% of the total land surface of Egypt; therefore, their potential for production must be assessed. Weed communities are mainly affected by the environment, and studies may increase our knowledge of the relationship among the weed flora, soil properties, crop rotation, soil management, fertiliser usage, and weed control. The area under study is one of the most recently reclaimed lands. The recorded 150 species in the monitored 19 sites were distributed within 33 families. The species-rich families were: Poaceae (31), Asteraceae (23), Brassicaceae (13), Chenopodiaceae (12), and Fabaceae (12). Chorological analysis revealed that the widely distributed species …
Vegetation And Soil Relationships In The Inland Wadi Ecosystem Of Central Eastern Desert, Egypt,
2013
TÜBİTAK
Vegetation And Soil Relationships In The Inland Wadi Ecosystem Of Central Eastern Desert, Egypt, Fawzy Salama, Monier Abd El-Ghani, Noha El-Tayeh
Turkish Journal of Botany
In January 2010, torrential rains that had suddenly swept away a limited area in the Eastern Desert facing Qena Province in Upper Egypt resulted in the enriching of the vegetation of some extremely dry wadis at this location. A vegetation survey carried out shortly after this event, in April, revealed the prevalence of annuals in considerable abundance, which are hardly recognisable in such usually dry habitats. The normally scarce perennial vegetation had flourished, too. A total of 32 species, 11 annuals, and 21 perennials that belong to 27 genera and 15 families were recorded. The life-form spectrum in the present …
Effects Of Exogenous Methyl Jasmonate And 2-Isopentenyladenine On Artemisinin Production And Gene Expression In Artemisia Annua, Mahboobeh Zare Mehrjerdi, Mohammad Reza Bihamta, Mansoor Omidi, Mohammad Reza Naghavi, Hassan Soltanloo, Mojtaba Ranjbar
Turkish Journal of Botany
Artemisinin, produced in very low amounts in Artemisia annua L. plants, is one of the most effective drugs in treating malaria. In this study, the effect of exogenous applications of methyl jasmonate (MeJA) and 2-isopentenyladenine (2-iP) in artemisinin production and the main genes of its biosynthesis pathway within a 1-week time period were investigated. Both MeJA and 2-iP increased artemisinin content, but no correlation was found between gene expression and its content. In plants treated with 2-iP, despite increased gene expression following elicitor application, downregulation of gene expression was also observed, which might be attributed to the negative effects of …
Gamma-Induced Infraspecific Polyploidy Via Cytomixis-Mediated Syncyte Formation In Papaver Somniferum (Papaveraceae),
2013
TÜBİTAK
Gamma-Induced Infraspecific Polyploidy Via Cytomixis-Mediated Syncyte Formation In Papaver Somniferum (Papaveraceae), Girjesh Kumar, Sana Naseem
Turkish Journal of Botany
This is the first report on the phenomenon of syncyte manifestation through cytomictic transmigration in Papaver somniferum L. The occurrence characteristics and cytological depictions of cytomixis in the meiotic course of gamma-irradiated population reveal the mechanism leading to the origin of the cell fusions/syncytes. The event was more frequent in meiosis I and rare in meiosis II, indicating that the process atrophies at the end of the first meiotic division. The degree of occurrence of the phenomenon virtually concurred with the increase in the treatment dose of gamma irradiation. The phenomenon also affected the qualitative composition of postmeiotic products, i.e. …
Comparative Anatomy Of The Needles Of Abies Koreana And Its Related Species,
2013
TÜBİTAK
Comparative Anatomy Of The Needles Of Abies Koreana And Its Related Species, Ju-Kyeong Eo, Jung-Oh Hyun
Turkish Journal of Botany
The morphological traits of the resin duct of the needle leaves of Abies koreana E.H.Wilson, an endemic species of Korea, and its related species were analysed. The quantitative traits of the resin ducts from 289 individuals were measured, and the observed resin duct types were compared with previous studies. As a result, each characteristic of the resin duct showed some clinal variations with latitude changes. The variations had extreme values in A. nephrolepis (Trautv.) Maxim. on Mt. Sikhote-Alin (Russia) and in A. koreana on Mt. Halla (Korea). In addition, it was difficult to suggest just one type of resin duct …
Species Composition And Distribution Of Centric Diatoms From Türkmen Mountain (Sakarya River Basin/Turkey),
2013
TÜBİTAK
Species Composition And Distribution Of Centric Diatoms From Türkmen Mountain (Sakarya River Basin/Turkey), Cüneyd Nadi̇r Solak, Maxim Kulikovskiy
Turkish Journal of Botany
Diatoms are used for monitoring the environmental conditions of water. We have little information about centric diatoms in Turkish freshwaters. A total of 50 samples were collected from some springs and small streams of Türkmen Mountain. As a result, 7 species [Cyclotella meneghiniana Kützing, C. ocellata Pantocsek, Cyclostephanos dubius (Fricke) Round, Handmannia balatonis (Pantocsek) Kulikovskiy & Solak comb. nov., Melosira varians Agardh, Stephanodiscus hantzschii Grunow, and S. minutulus (Kützing) Cleve & Möller] were identified, and we also suggest in this study that a new combination for Cyclotella balatonis Pantocsek should be Handmannia balatonis comb. nov. and for C. praetermissa Lund …
Molecular Characterisation Of The Genus Papaver Section Oxytona Using Issr Markers,
2013
TÜBİTAK
Molecular Characterisation Of The Genus Papaver Section Oxytona Using Issr Markers, Tuğba Gürkök, Eli̇f Kaymak, Gülşen Boztepe, Mesut Koyuncu, İskender Parmaksiz
Turkish Journal of Botany
Papaver bracteatum Lindl., P. orientale L., and P. pseudo-orientale (Fedde) Medw., species of section Oxytona Bernh. in the genus Papaver L., are found widely in the native flora of Turkey. They are commercially important for their high alkaloid content. Because genus Papaver section Oxytona has similar morphological characters, it is not easy to distinguish these species. We used the inter-simple sequence repeat (ISSR) molecular marker system to determine the molecular characterisation of this section. In this study, 20 ISSR primers have been studied in 180 accessions collected from 5 different regions of Turkey. A total of 82 bands were obtained, …
Pollen Morphology Of The Genus Onobrychis (Fabaceae) In Turkey,
2013
TÜBİTAK
Pollen Morphology Of The Genus Onobrychis (Fabaceae) In Turkey, Süleyman Avci, Cengi̇z Sancak, Alp Can, Aydan Acar, Nur Münevver Pinar
Turkish Journal of Botany
The pollen size and morphology of 20 Onobrychis Adans. taxa from Turkey were studied using both light and scanning electron microscopy. Of the taxa studied, Onobrychis fallax Freyn & Sint. and Onobrychis elata Boiss. & Balansa showed the smallest size of pollen grains, while the largest were found in Onobrychis aequidentata (Sibth. & Sm.) d'Urv. and Onobrychis viciifolia Scop. The pollens of all taxa studied represent the tricolpate type of pollen and are prolate in shape. The type of exine found in the studied taxa is reticulate (sect. Dendobrychis DC. and sect. Laphobrychis Hand.-Mazz.), suprareticulate (sect. Onobrychis), or microreticulate (sect. …
Cadmium-Induced Structural Disturbances In Pisum Sativum Leaves Are Alleviated By Nitric Oxide,
2013
TÜBİTAK
Cadmium-Induced Structural Disturbances In Pisum Sativum Leaves Are Alleviated By Nitric Oxide, Tuan Anh Tran, Valya Vassileva, Petar Petrov, Losanka Petrova Popova
Turkish Journal of Botany
In the present study, the protective effect of nitric oxide (NO) against Cd-induced structural disturbances in pea (Pisum sativum) leaves was investigated. Cadmium treatment resulted in a decreased leaf size and thickness of the lamina, reduced intercellular spaces in the mesophyll, small pavement cells, and a high density of stomata. These abnormalities were partially or fully reversed by a simultaneous application of Cd and the NO donor, sodium nitroprusside (SNP). The concentration of 1000 µM SNP was very effective in counteracting the adverse effects of Cd and resulted in leaf structural parameters close to those of the control leaves. These …
The Phylogeny Of Heterocapsa Sp. (Dinophyceae) Isolated From The South Coast Of Iran During A Cochlodinium Polykrikoides Bloom,
2013
TÜBİTAK
The Phylogeny Of Heterocapsa Sp. (Dinophyceae) Isolated From The South Coast Of Iran During A Cochlodinium Polykrikoides Bloom, Gilan Attaran Fariman, Pegah Javid
Turkish Journal of Botany
The genus Heterocapsa Stein is a relatively small armoured dinoflagellate. Because it has few differences in morphological characteristics among its species, species identification is difficult. In this study, small Heterocapsa sp. cells associated with a dense bloom of Cochlodinium polykrikoides Margalef were collected from the south-east coast of Iran. While Heterocapsa sp. was isolated, C. polykrikoides could not be isolated by single cell or serial dilution methods. Thus, a unialgal strain of Heterocapsa sp. was used for molecular analysis and species identification. In order to carry out phylogenetic analysis, rDNA was extracted and large subunit domains of D1-D3 were sequenced. …
New Staining Technique For Fungal-Infected Plant Tissues,
2013
TÜBİTAK
New Staining Technique For Fungal-Infected Plant Tissues, Joao Paulo Rodrigues Marques, Marli Kasue Misaki Soares, Beatriz Appezzato-Da-Glória
Turkish Journal of Botany
The use of histological techniques, combined with the use of dyes, facilitates the visualisation of fungi present in tissues, allowing the details of plant-pathogen interactions in many different pathosystems to be revealed. The purpose of this study is to present a new double-staining method that uses cotton blue and safranin to identify fungal structures in plant tissues. With this staining method, the fungal hyphae stain blue and plant cell walls stain orange. The new method was tested on 2 pathosystems. The technique distinguishes between fungal and plant cell walls, giving it great practical utility. This is a staining technique that …
