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Articles 811 - 840 of 1739
Full-Text Articles in Botany
Rapd And Issr Analysis Of Some Economically Important Species, Varieties, And Cultivars Of The Genus Allium (Alliaceae), Ashutosh Mukherjee, Biswanath Sikdar, Biplab Ghosh, Anuradha Banerjee, Enakshi Ghosh, Moimee Bhattacharya, Satyesh Chandra Roy
Rapd And Issr Analysis Of Some Economically Important Species, Varieties, And Cultivars Of The Genus Allium (Alliaceae), Ashutosh Mukherjee, Biswanath Sikdar, Biplab Ghosh, Anuradha Banerjee, Enakshi Ghosh, Moimee Bhattacharya, Satyesh Chandra Roy
Turkish Journal of Botany
RAPD and ISSR markers have been used to reveal the genetic diversity and phylogenetic analysis of some economically important species of Allium. Two plants related to Allium were also included for better understanding of the phylogeny. ISSR showed more polymorphism within A. cepa and A. sativum, while RAPD showed more polymorphism within A. porrum. Overall, RAPD revealed more intraspecific diversity than ISSR, while ISSR showed more interspecific diversity than RAPD. This showed the usefulness of using both markers for the study of Allium. UPGMA-based dendrograms showed a close relationship between Allium sativum and Allium porrum. A. porrum showed less genetic …
Morphological And Genetic Variation Within And Among Four Quercus Petraea And Q. Robur Natural Populations, Cengi̇z Yücedağ, Oliver Gailing
Morphological And Genetic Variation Within And Among Four Quercus Petraea And Q. Robur Natural Populations, Cengi̇z Yücedağ, Oliver Gailing
Turkish Journal of Botany
Numeric-taxonomical and molecular techniques [nuclear simple sequence repeats (nSSRs), expressed sequence tag (EST) SSRs, and chloroplast SSRs] were used to estimate morphological and genetic differentiation within and among 4 Quercus petraea and Q. robur natural populations in Turkey. Canonical discriminant analysis (CDA) and principal component analysis (PCA) showed that 3 out of 15 studied leaf morphological characters (clustered hairs, number of intercalary veins, petiole length) mainly accounted for the discrimination between species. In accordance with earlier observations, the mean genetic differentiation between Q. petraea and Q. robur at 8 microsatellite loci (F_{ST} = 0.030) and at chloroplast microsatellites (G_{ST} = …
The Identity Of Magnolia Odoratissima (Magnoliaceae) From China, Shugang Chen, Qingwen Zeng
The Identity Of Magnolia Odoratissima (Magnoliaceae) From China, Shugang Chen, Qingwen Zeng
Turkish Journal of Botany
The type specimen of Magnolia odoratissima Y.W.Law & R.Z.Zhou (Magnoliaceae) conflicts with the protologue and belongs to the genus Parakmeria Hu & W.C.Cheng. A new name, Magnolia kwangnanensis S.G.Chen & Q.W.Zeng sp. nov., and a new type are designated to accommodate the original description. Here we provide new data and a detailed morphological description for this species. Notes are also presented on its habitat, pollen morphology, and conservation status.
Sexual Phenotype Of Capparis Herbacea (Capparaceae), Nana Shakarishvili, Liana Osishvili
Sexual Phenotype Of Capparis Herbacea (Capparaceae), Nana Shakarishvili, Liana Osishvili
Turkish Journal of Botany
Floral morphology coupled with the morphometry of androecium revealed that Capparis herbacea Willd. has an andromonoecious sexual system, producing both male and perfect flowers on the same plant. Functionally male flowers develop more stamens with larger anthers than bisexual ones (63.6 ± 0.6 and 4.1 ± 0.01 mm; 58.1 ± 0.7 and 3.6 ± 0.02 mm, respectively). The ratio of male to perfect flowers ranges from 0.5 to 2.6 during the flowering season. The development of dense trichomes on the adaxial surface of the cavity made by variegated connate petals is presumably adaptive and serves to protect nectary exudate from …
The Lichen Flora Of Gunib Plateau, Inner-Mountain Dagestan (North-East Caucasus, Russia), Gennadii Urbanavichus, Aziz Ismailov
The Lichen Flora Of Gunib Plateau, Inner-Mountain Dagestan (North-East Caucasus, Russia), Gennadii Urbanavichus, Aziz Ismailov
Turkish Journal of Botany
As a result of lichenological exploration of the Gunib plateau in the Republic of Dagestan (North-East Caucasus, Russia), we report 402 species of lichenised, 37 lichenicolous, and 7 nonlichenised fungi representing 151 genera. Nineteen species are recorded for the first time for Russia: Abrothallus chrysanthus J.Steiner, Abrothallus microspermus Tul., Caloplaca albopruinosa (Arnold) H.Olivier, Candelariella plumbea Poelt & Vezda, Candelariella rhodax Poelt & Vezda, Cladonia firma (Nyl.) Nyl., Halospora deminuta (Arnold) Tomas. & Cif., Halospora discrepans (J.Lahm ex Arnold) Hafellner, Lichenostigma epipolina Nav.-Ros., Calat. & Hafellner, Milospium graphideorum (Nyl.) D.Hawksw., Mycomicrothelia atlantica D.Hawksw. & Coppins, Parabagliettoa cyanea (A.Massal.) Gueidan & Cl.Roux, …
Molecular Phylogeny Of Galanthus (Amaryllidaceae) Of Anatolia Inferred From Multiple Nuclear And Chloroplast Dna Regions, Ni̇vart Taşci Margoz, İbrahi̇m Sirri Yüzbaşioğlu, Zeynep Çelen, Tuna Eki̇m, Ayşe Neşe Bi̇lgi̇n
Molecular Phylogeny Of Galanthus (Amaryllidaceae) Of Anatolia Inferred From Multiple Nuclear And Chloroplast Dna Regions, Ni̇vart Taşci Margoz, İbrahi̇m Sirri Yüzbaşioğlu, Zeynep Çelen, Tuna Eki̇m, Ayşe Neşe Bi̇lgi̇n
Turkish Journal of Botany
Anatolia hosts 14 of the 22 taxa of genus Galanthus L. The phylogenetic relationships of Galanthus species were explored using DNA sequence data from both nuclear and chloroplast DNA of 70 specimens covering all subdivisions of Galanthus present in Turkey. Our data showed that species of the same geography clustered together phylogenetically, in contrast to the presently recognized taxonomy based on morphological characters. The 5.8S rRNA sequence data by itself is sufficiently informative for constructing phylogenetic trees. Our data confirm the identity of Galanthus koenenianus as a new taxon, well separated from G. alpinus; both are clustered within subseries Viridifolii, …
Agrophysiological And Biochemical Properties Associated With Adaptation Of Medicago Sativa Populations To Water Deficit, Mohamed Farissi, Abdelaziz Bouizgaren, Mustapha Faghire, Adnane Bargaz, Cherki Ghoulam
Agrophysiological And Biochemical Properties Associated With Adaptation Of Medicago Sativa Populations To Water Deficit, Mohamed Farissi, Abdelaziz Bouizgaren, Mustapha Faghire, Adnane Bargaz, Cherki Ghoulam
Turkish Journal of Botany
The effect of water deficit on growth and some physiological and biochemical parameters related to water deficit tolerance was studied in 4 Moroccan alfalfa Medicago sativa L. populations that originated from the mountains and oases of Morocco. The experiment was conducted in greenhouse conditions. Seeds were allowed to germinate in pots filled with sand and peat at a 2:1 ratio, respectively. After 1 month of sowing, the plants were subjected to 3 water regimes: optimal irrigation (75% of field capacity, FC), moderate water deficit (50% FC), and severe water deficit (25% FC). At 45 days of stress, the plants were …
Three New Species Of Basidiomycetous Fungi From India, Babita Kumari, Narinder Singh Atri, Ramesh Chandra Upadhyay
Three New Species Of Basidiomycetous Fungi From India, Babita Kumari, Narinder Singh Atri, Ramesh Chandra Upadhyay
Turkish Journal of Botany
In this paper, 2 lepiotaceous mushrooms [Lepiota indica sp. nov. and Lepiota attenuispora sp. nov. (Agaricaeae)] and 1 Limacella magna sp. nov. in the Amanitaceae are described. Lepiota indica has scurfy brownish carpophores, minute spores, and chains of golden brown-walled pileal elements. Lepiota attenuispora has a shaggy appearance, an appendiculate veil of the pileus margin, and a stipe sheathed with soft cottony scales. Limacella magna is a species characterized by prominent brown scales on the pileus and stipe, presence of a glutinous layer, and a trichodermal pileus cutis.
Phylogenetic Analysis Of The Genus Stachys Sect. Eriostomum (Lamiaceae) In Turkey Based On Nuclear Ribosomal Its Sequences, Ekrem Dündar, Ekrem Akçi̇çek, Tuncay Di̇rmenci̇, Şaki̇r Akgün
Phylogenetic Analysis Of The Genus Stachys Sect. Eriostomum (Lamiaceae) In Turkey Based On Nuclear Ribosomal Its Sequences, Ekrem Dündar, Ekrem Akçi̇çek, Tuncay Di̇rmenci̇, Şaki̇r Akgün
Turkish Journal of Botany
Morphological revision and phylogenetic analysis of Stachys L. sect. Eriostomum (Hoffmanns. & Link) Dumort. (Lamiaceae) based on nuclear ribosomal internal transcribed spacer (nrITS) sequences were conducted. Morphological analysis confirmed the previous arrangements of 3 subsections, i.e. Germanicae R.Bhattacharjee, Creticae R.Bhattacharjee, and Spectabiles R.Bhattacharjee, while suggesting some status changes and new records that were also confirmed by the phylogenetic analysis. The phylogenetic analysis suggested, however, some arrangements different from those indicated by morphology. Two subsections, i.e. Creticae and Germanicae-Spectabiles, instead of 3 were observed in the phylogenetic tree. The tree also suggested that 9 Stachys cretica L. subspecies form a polyphyletic …
Leaf Epidermis Morphology Of Some Onosma (Boraginaceae) Species From Turkey, Öznur Ergen Akçi̇n, Gülcan Şenel, Yaşar Akçi̇n
Leaf Epidermis Morphology Of Some Onosma (Boraginaceae) Species From Turkey, Öznur Ergen Akçi̇n, Gülcan Şenel, Yaşar Akçi̇n
Turkish Journal of Botany
The leaf epidermis of 14 Onosma L. species was examined by light and scanning electron microscopy (SEM). The leaf characters studied showed some variations. Morphologic features of the epidermal cells such as shape, structure of the anticlinal walls, stomatal size, outer stomatal rims, peristomatal rims, and apertures were summarised in the examined taxa. It was found that these characters are variable in the genus but usually they are stable within a species. Epidermal cells of the investigated taxa are polygonal, elongated, or irregular. Anticlinal walls of the epidermal cells are generally straight to curved and repand. Apertures are long, ellipsoidal, …
Comparative Morphological, Epidermal, And Anatomical Studies Of Pinus Roxburghii Needles At Different Altitudes In The North-West Indian Himalayas, Satyendra Prakash Tiwari, Pradeep Kumar, Deepika Yadav, Devendra Kumar Chauhan
Comparative Morphological, Epidermal, And Anatomical Studies Of Pinus Roxburghii Needles At Different Altitudes In The North-West Indian Himalayas, Satyendra Prakash Tiwari, Pradeep Kumar, Deepika Yadav, Devendra Kumar Chauhan
Turkish Journal of Botany
The aim of the present study was to understand the ecological adaptation of Pinus roxburghii Sarg. in the North-West Himalayan region. P. roxburghii needles showed morphological, epidermal, and anatomical variation at different altitudes. Needle length was negatively correlated with altitude. Stomatal characters like stomatal density, stomatal index, and guard cell lengths were found to be affected by environmental factors and showed a direct correlation with altitude. The results showed that potential conductance index was dependent on the climatic conditions of the habitat. The anatomical properties of needles exhibited variation from lower to higher elevation, especially in the number and position …
Analysis Of Airborne Pollen Grains In Denizli, Aykut Güvensen, Ali̇ Çeli̇k, Bülent Topuz, Müni̇r Öztürk
Analysis Of Airborne Pollen Grains In Denizli, Aykut Güvensen, Ali̇ Çeli̇k, Bülent Topuz, Müni̇r Öztürk
Turkish Journal of Botany
Airborne pollen distribution in Denizli Province was measured volumetrically during 2 consecutive years, 2005 and 2006, on a weekly basis. A total of 11,981 pollen grains/m^3 belonging to 42 taxa were determined. In 2005 the total was 5368 pollen grains/m^3 and in 2006 it was 6613 pollen grains/m^3. Among the taxa recorded, 26 belonged to arboreal and 16 to nonarboreal taxa. At the end of the 2 years total pollen counts comprised 79.68% arboreal, 19.48% nonarboreal, and 0.84% unidentified taxa. The number of pollen grains/m^3 among arboreal plants was as follows: Pinaceae (24.19%), Cupressaceae/Taxodiaceae (15.99%), Olea europaea (11.35%), Quercus spp. …
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
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
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, Serkan Kükrer, Hasan Baha Büyükişik
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
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), Fi̇li̇z Vardar, Işil İsmai̇loğlu, Meral Ünal
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, Güray Uyar, Muhammet Ören
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), Tülay Ezer, Recep Kara
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, Saima Latif, Zarrien Ayub, Ghazala Siddiqui
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, Murat Koç, Ahmet Aksoy
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, Monier Abd El-Ghani, Ashraf Soliman, Rim Hamdy, Ebtesam Bennoba
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, Fawzy Salama, Monier Abd El-Ghani, Noha El-Tayeh
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
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), Girjesh Kumar, Sana Naseem
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, Ju-Kyeong Eo, Jung-Oh Hyun
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), Cüneyd Nadi̇r Solak, Maxim Kulikovskiy
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, Tuğba Gürkök, Eli̇f Kaymak, Gülşen Boztepe, Mesut Koyuncu, İskender Parmaksiz
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, Süleyman Avci, Cengi̇z Sancak, Alp Can, Aydan Acar, Nur Münevver Pinar
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, Tuan Anh Tran, Valya Vassileva, Petar Petrov, Losanka Petrova Popova
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 …