Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Turkey (378)
- Taxonomy (196)
- Flora (119)
- New record (68)
- New records (65)
-
- Biodiversity (61)
- Morphology (61)
- Phylogeny (60)
- Macrofungi (56)
- New species (49)
- Endemic (48)
- Anatomy (45)
- ITS (29)
- Compositae (28)
- SEM (28)
- Phytoplankton (26)
- Pollen (26)
- Pollen morphology (26)
- Turkey. (26)
- Lamiaceae (25)
- Iran (24)
- Brassicaceae (23)
- Asteraceae (22)
- Anatolia (21)
- Astragalus (21)
- Conservation (21)
- Micromorphology (21)
- Leguminosae (20)
- Gene expression (19)
- Genetic diversity (19)
- Publication Year
Articles 751 - 780 of 1739
Full-Text Articles in Life Sciences
Morphology, Histochemistry, And Ultrastructure Of Foliar Mucilage-Producing Trichomes Of Harpagophytum Procumbens (Pedaliaceae), Yougasphree Naidoo, Samia Heneidak, Arvind Bhatt, Nazeera Kasim, Gonasageran Naidoo
Morphology, Histochemistry, And Ultrastructure Of Foliar Mucilage-Producing Trichomes Of Harpagophytum Procumbens (Pedaliaceae), Yougasphree Naidoo, Samia Heneidak, Arvind Bhatt, Nazeera Kasim, Gonasageran Naidoo
Turkish Journal of Botany
The morphology, histochemistry, and ultrastructure of foliar mucilage-producing trichomes of Harpagophytum procumbens are investigated using a combination of light and electron microscopy. The leaves of H. procumbens bear short and long glandular trichomes comprising 1 or 2 basal epidermal cells, a stalk of 1-3 cells, a short neck cell, and a head of 2-5 cells. These trichomes are distributed on both leaf sides with a greater abundance on the abaxial side. Both types of trichomes secrete copious amounts of secretion as droplets onto the leaf surface, and the release occurs through micropores in the head cuticles. The secreted material is …
Interspecific In Vitro Hybridization In Genus Centaurium And Identification Of Hybrids Via Flow Cytometry, Rapd, And Secondary Metabolite Profiles, Tijana Banjanac, Branislav Siler, Marijana Skoric, Nabil Ghalawenji, Milica Milutinovic, Dragana Bozic, Danijela Misic
Interspecific In Vitro Hybridization In Genus Centaurium And Identification Of Hybrids Via Flow Cytometry, Rapd, And Secondary Metabolite Profiles, Tijana Banjanac, Branislav Siler, Marijana Skoric, Nabil Ghalawenji, Milica Milutinovic, Dragana Bozic, Danijela Misic
Turkish Journal of Botany
Most of the species from the genus Centaurium Hill readily hybridize between themselves in natural habitats. Artificial interspecific hybrid plants were obtained under in vitro conditions using reciprocal crosses between 4 species: Centaurium erythraea, C. littorale, C. maritimum, and C. pulchellum. Among 76 crossing experiments performed, 3 types of crosses produced seeds and gave 20 interspecific hybrid plants. Nuclear DNA quantification, fingerprinting of molecular markers, and determination of variation in main secondary metabolite content were employed to confirm their hybrid nature. All 3 approaches were capable of detecting hybrid plants. RAPD molecular markers proved to be the most reliable, always …
Expression Of Sod Gene And Evaluating Its Role In Stress Tolerance In Nacl And Peg Stressed Lycopersicum Esculentum, Semra Aydin, İlker Büyük, Emi̇ne Sümer Aras
Expression Of Sod Gene And Evaluating Its Role In Stress Tolerance In Nacl And Peg Stressed Lycopersicum Esculentum, Semra Aydin, İlker Büyük, Emi̇ne Sümer Aras
Turkish Journal of Botany
Antioxidant enzyme mechanisms are important for protecting crop productivity against stressful environmental conditions. Therefore, the current study was designed to evaluate lipid peroxidation (via malondialdehyde (MDA)) levels, superoxide dismutase (SOD) gene expression profiles, and SOD enzyme activities in tomato (Lycopersicum esculentum L.) plants subjected to different concentrations (100 and 150 mM) and time periods of NaCl and polyethylene glycol (PEG) stress (3 h, 6 h, 9 h, 12 h, and 48 h). Enhancement of lipid peroxidation in plants may be attributed to the increased accumulation of reactive oxygen species (ROS). Results indicated the antioxidant responses of tomato plants could be …
Physiological Responses Of Transgenic Tobacco Plants Expressing The Dehydration-Responsive Rd22 Gene Of Vitis Vinifera To Salt Stress, Rahma Jardak Jamoussi, Mohamed Malek Elabbassi, Hatem Ben Jouira, Mohsen Hanana, Nejia Zoghlami, Abdelwahed Ghorbel, Ahmed Mliki
Physiological Responses Of Transgenic Tobacco Plants Expressing The Dehydration-Responsive Rd22 Gene Of Vitis Vinifera To Salt Stress, Rahma Jardak Jamoussi, Mohamed Malek Elabbassi, Hatem Ben Jouira, Mohsen Hanana, Nejia Zoghlami, Abdelwahed Ghorbel, Ahmed Mliki
Turkish Journal of Botany
Salinity is one of the most common environmental stresses affecting grapevine productivity. In order to analyze the contribution of the dehydration-responsive RD22 gene of Vitis vinifera L. (VvRD22) to salt tolerance improvement, Agrobacterium-mediated transformation in the tobacco model plant (Nicotiana benthamiana) was carried out and transgenic lines were subjected to in vitro and ex vitro salt treatments for physiological response evaluation. Under in vitro salt stress, the transgenic lines exhibited higher seed germination and growth than the wild type (WT). The ex vitro assays after salt treatment showed better growth and higher chlorophyll content in VvRD22-expressing plants than in the …
Contrasting Inbreeding Depression In Early And Late Stages Of The Life Cycle Of A Mediterranean Shrub, Anagyris Foetida (Leguminosae), Francisco Javier Valtueña, Josefa López, Ana Ortega-Olivencia, Tomás Rodriguez-Riaño, Miguel González
Contrasting Inbreeding Depression In Early And Late Stages Of The Life Cycle Of A Mediterranean Shrub, Anagyris Foetida (Leguminosae), Francisco Javier Valtueña, Josefa López, Ana Ortega-Olivencia, Tomás Rodriguez-Riaño, Miguel González
Turkish Journal of Botany
Anagyris foetida L. has a Mediterranean distribution, but its populations are highly fragmented. This, together with its mixed mating system, puts it at clear risk of being strongly affected by inbreeding depression. To determine the effect of inbreeding depression in this species, hand pollinations were performed during the 2003/04 season in 2 populations from SW Spain to generate selfed and outcrossed seeds. These seeds were divided in 2 sample lots and seedlings were obtained in different years. During the first year of life the first lot showed no differences in vegetative parameters between the 2 populations, so that no differentiation …
Leaf Morphology And Anatomy Of 7 Varieties Of Ficus Deltoidea (Moraceae), Hasan Nudin Nur Fatihah, Mat Nashriyah, Abdul Rashid Nor Zaimah, Mahmud Khairil, Abdul Manaf Ali
Leaf Morphology And Anatomy Of 7 Varieties Of Ficus Deltoidea (Moraceae), Hasan Nudin Nur Fatihah, Mat Nashriyah, Abdul Rashid Nor Zaimah, Mahmud Khairil, Abdul Manaf Ali
Turkish Journal of Botany
The extreme morphological variations and unclear boundaries between varieties can lead to the misleading identification of Ficus deltoidea Jack (Moraceae) varieties. This has encouraged many taxonomists and botanists to study the variation within F. deltoidea. Thus, correct identification of F. deltoidea varieties is important, as several morphological and anatomical characters are variety-specific. The present study aims to evaluate the morphology and anatomy of leaf in 7 varieties of F. deltoidea, namely var. deltoidea, var. angustifolia, var. trengganuensis, var. bilobata, var. intermedia, var. kunstleri, and var. motleyana. It also aims to contribute to the identification of the varieties based on the …
Retracted Article: Increasing Nuclear Ploidy Enhances The Capability Of Antioxidant Defense And Reduces Chromotoxicity In Lathyrus Sativus Roots Under Cadmium Stress, Dibyendu Talukdar
Retracted Article: Increasing Nuclear Ploidy Enhances The Capability Of Antioxidant Defense And Reduces Chromotoxicity In Lathyrus Sativus Roots Under Cadmium Stress, Dibyendu Talukdar
Turkish Journal of Botany
A careful analysis of the paper entitiled Increasing nuclear ploidy enhances the capability of antioxidant defense and reduces chromotoxicity in Lathyrus sativus roots under cadmium stress published in Turk J Bot 2014 (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.
A New Natural Hybrid Between Prosthechea Cochleata And P. Radiata (Orchidaceae) From Alta Verapaz, Guatemala, Edgar Mó, William Cetzal Ix, Germán Carnevali, Eduardo Pérez-García, Saikat Basu
A New Natural Hybrid Between Prosthechea Cochleata And P. Radiata (Orchidaceae) From Alta Verapaz, Guatemala, Edgar Mó, William Cetzal Ix, Germán Carnevali, Eduardo Pérez-García, Saikat Basu
Turkish Journal of Botany
A new natural hybrid between Prosthechea cochleata and P. radiata (Orchidaceae, Laeliinae) from the central part of Guatemala, P. × chixoyensis Mó & Cetzal, is herein described, illustrated, and characterized based on the morphological characters. The new nothospecies is most similar to P. cochleata but the petals are proportionally broader and the mucro of the labellum is subapical, as observed in P. radiata. Additionally, the perianth segments are neither as strongly reflexed as they are in P. cochleata nor patent as in P. radiata. A table of diagnostic characters for the new hybrid and its putative parents, a comparative figure, …
K-Means Clustering And Structure Analyses Of Genetic Diversity In Tamarix L. Accessions, Habibollah Ijbari, Masoud Sheidai, Ahmad-Reza Mehrabian, Zahra Noormohammadi, Somayeh Ghasemzadeh-Baraki
K-Means Clustering And Structure Analyses Of Genetic Diversity In Tamarix L. Accessions, Habibollah Ijbari, Masoud Sheidai, Ahmad-Reza Mehrabian, Zahra Noormohammadi, Somayeh Ghasemzadeh-Baraki
Turkish Journal of Botany
Tamarix L. accessions were collected from Sistan and Baluchestan Province of Iran, covering an area of about 60 km located in the southeast of Iran. The present investigation was performed to study the genetic structure of Tamarix populations in this province and present some information about gene flow among these populations. Forty-two tree specimens were randomly collected and studied for molecular and morphological diversity. Based on morphological descriptions we recognized 3 species that were confirmed by detailed morphometric and genetic analysis. The studied tree specimens were separated in 3 distinct clusters by UPGMA clustering and principal coordinate analysis and multidimensional …
Comparative Analysis Of Hexaploid Avena Species Using Remap And Issr Methods, Edyta Paczos Grzeda, Piotr Tomasz Bednarek
Comparative Analysis Of Hexaploid Avena Species Using Remap And Issr Methods, Edyta Paczos Grzeda, Piotr Tomasz Bednarek
Turkish Journal of Botany
Taxonomic relationships in Avena genus are not evident. Avena sativa L. might have originated either from Avena sterilis L. or Avena fatua L. Alternatively, it may have evolved independently during formation of the hexaploid form. A. fatua may have a different A genome than the other hexaploids. Studies performed with Ty1-copia retrotransposon probes demonstrated that this retrotransposon is present at low copy number in the C genome, while it is abundant in A, B, and D. The observed differences provide an opportunity for analyzing the putative origin of A. fatua as well as its relationships with other hexaploids. Two marker …
First Karyotype Analysis, Physical Rdna Mapping, And Genome Size Assessment In 4 North African Astragalus Taxa (Fabaceae), Karim Baziz, Meriem Benamara-Bellagha, Fatima Pustahija, Spencer Craig Brown, Sonja Siljak-Yakovlev, Nadra Khalfallah
First Karyotype Analysis, Physical Rdna Mapping, And Genome Size Assessment In 4 North African Astragalus Taxa (Fabaceae), Karim Baziz, Meriem Benamara-Bellagha, Fatima Pustahija, Spencer Craig Brown, Sonja Siljak-Yakovlev, Nadra Khalfallah
Turkish Journal of Botany
Four taxa of Algerian Astragalus L. were studied for their chromosome number, karyotype features, and genome size. Fluorochrome banding was done for detection of GC-rich DNA regions, fluorescence in situ hybridization (FISH) for physical mapping of 35S and 5S rRNA genes, and flow cytometry for nuclear DNA content. All the taxa present the same chromosome number (2n = 2x = 16) and single 35S and 5S rDNA loci, but their distributions on chromosomes are different. The GC heterochromatin pattern was different among studied taxa and an unusually high number of chromomycin-positive bands were observed in A. pseudotrigonus Batt. & Trab. …
Genetic Diversity Of Turkish Commercial Cotton Varieties Revealed By Molecular Markers And Fiber Quality Traits, Emi̇nur Elçi̇, Yaşar Akişcan, Batuhan Akgöl
Genetic Diversity Of Turkish Commercial Cotton Varieties Revealed By Molecular Markers And Fiber Quality Traits, Emi̇nur Elçi̇, Yaşar Akişcan, Batuhan Akgöl
Turkish Journal of Botany
To assess the genetic diversity and relationships among commercial Gossypium species released in Turkey between 1964 and 2014, 96 cotton varieties were analyzed using morphological and molecular markers. Morphological analysis was performed based on 4 fiber quality traits including fiber length, strength, fineness, and uniformity, and the mean values of each trait for each genotype were calculated using 2-year data. The results showed that most of the genotypes have long fiber length, very high fiber strength, coarse (45 genotypes) or average (50 genotypes) fiber fineness, and high uniformity. Twenty-six simple sequence repeat (SSR) markers and 14 markers linked to quantitative …
Allium Efeae (Amaryllidaceae), A New Species From Northwest Anatolia, Turkey, İlker Genç, Fatma Neri̇man Özhatay
Allium Efeae (Amaryllidaceae), A New Species From Northwest Anatolia, Turkey, İlker Genç, Fatma Neri̇man Özhatay
Turkish Journal of Botany
Allium efeae Özhatay & İ.Genç is described as a new species from northwest Anatolia. The distribution area of this species is restricted to Kıbrıscık (Bolu) and Beypazarı (Ankara). It resembles Allium lycaonicum Siehe, but differs in tepal shape and color, leaf length, and filament shape. A table comparing the diagnostic morphological characters of the new species and A. lycaonicum is provided. The diagnostic morphological characters, distribution, conservation status, and color photographs of the new species as well as its chromosome number (2n = 24) are presented.
A Revision Of Centaurea Sect. Centaurea (Asteraceae) From Iran, Massoud Ranjbar, Kazem Negaresh
A Revision Of Centaurea Sect. Centaurea (Asteraceae) From Iran, Massoud Ranjbar, Kazem Negaresh
Turkish Journal of Botany
A taxonomic review of Centaurea L. sect. Centaurea (Asteraceae) in Iran was carried out. Seven taxa are recognized and 1 of them is described as a new species: Centaurea joharchii Ranjbar & Negaresh. This new species has been described and illustrated from Khorasan Province, SE Iran. A new combination is proposed: C. kermanshahensis (Wagenitz) Ranjbar & Negaresh. In addition, C. aggregata Fisch. & C.A.Mey. ex DC. subsp. aggregata is typified and C. diffusa Lam. is reported here as a new record for Iran. Finally, a key to all species of the section Centaurea in Iran is provided.
Heterologous Expression Of Esaba1 Enhances Salt Tolerance With Increased Accumulation Of Endogenous Aba In Transgenic Tobacco, Yujun Sun, Lin Zhu, Jiansheng Guo, Cheng Zhou
Heterologous Expression Of Esaba1 Enhances Salt Tolerance With Increased Accumulation Of Endogenous Aba In Transgenic Tobacco, Yujun Sun, Lin Zhu, Jiansheng Guo, Cheng Zhou
Turkish Journal of Botany
Salt stress can trigger several physiological responses in plants such as increased accumulation of ABA and antioxidant enzyme activities, which have been closely associated with the tolerance of plants to salt stress. In the present study a novel zeaxanthin epoxidase gene, designated EsABA1, was isolated from Eutrema salsugineum. EsABA1 contained a full-length open reading frame (ORF) of 2001 bp, encoding 666 amino acids. Transcription of EsABA1 rapidly accumulated after exposure to various abiotic stresses, suggesting that the EsABA1 gene was involved in multiple stress responses and tolerance. To further investigate the roles of EsABA1 under salt-stress conditions, transgenic tobacco lines …
Salicylic-Acid-Induced Recovery Ability In Salt-Stressed Hordeum Vulgare Plants, Hadi Pirasteh Anosheh, Gholamhassan Ranjbar, Yahya Emam, Muhammad Ashraf
Salicylic-Acid-Induced Recovery Ability In Salt-Stressed Hordeum Vulgare Plants, Hadi Pirasteh Anosheh, Gholamhassan Ranjbar, Yahya Emam, Muhammad Ashraf
Turkish Journal of Botany
The recovery ability of barley plants from salt stress conditions was assessed using foliar application of salicylic acid (SA) in a study conducted under controlled conditions. The barley plants (Hordeum vulgare L. 'Reyhan') were subjected to saline water with varying salinity levels (tap water 0.67 dS m^{-1} as control, 3, 6, 9, and 12 dS m^{-1}) from 14 to 42 days after sowing (DAS). Then the plants were subjected to recovery treatments for 4 weeks, from 42 to 70 DAS. The recovery treatments included: non-recovery (R_0), irrigation with tap water (R_1), and irrigation with tap water + 2 foliar applications …
A Comparative Study Of Taxonomy, Physicochemical Parameters, And Chemical Constituents Of Ganoderma Lucidum And G. Philippii From Uttarakhand, India, Ranjeet Singh, Gurpaul Singh Dhingra, Richa Shri
A Comparative Study Of Taxonomy, Physicochemical Parameters, And Chemical Constituents Of Ganoderma Lucidum And G. Philippii From Uttarakhand, India, Ranjeet Singh, Gurpaul Singh Dhingra, Richa Shri
Turkish Journal of Botany
The genus Ganoderma consists of cosmopolitan polypore mushrooms, many of which can cause different types of rots in plants. Many species of this genus are being used for their medicinal and nutraceutical properties in many countries. The present study provides a comparative evaluation of taxonomy, physicochemical parameters, and chemical constituents of Ganoderma lucidum and G. philippii collected from different localities of Uttarakhand, India. The macroscopic and microscopic characters on the basis of which G. lucidum differs from G. philippii include habit, external basidiocarp characteristics, context, pore tube layers and pores, cutis type, and shape and size of basidiospores. The fruiting …
Leaf Morphology And Shoot Regeneration Of In Vitro Cultured Explants From Species Of The Solanum Peruvianum S.L. Complex, Carlos Trujillo-Moya, Rosa Peiró, Carmina Gisbert
Leaf Morphology And Shoot Regeneration Of In Vitro Cultured Explants From Species Of The Solanum Peruvianum S.L. Complex, Carlos Trujillo-Moya, Rosa Peiró, Carmina Gisbert
Turkish Journal of Botany
We studied leaf morphology in in vitro plants of species segregated from the Solanum peruvianum L. s.l. complex: S. arcanum Peralta, S. corneliomulleri J.F.Macbr., S. huaylasense Peralta, and S. peruvianum L. s.str. In these species, the regeneration ability from root and leaf explants cultured in vitro in 2 organogenic media (SIM-1 and SIM-2) was also evaluated in a total of 16 accessions. These species can be differentiated by the number of leaflets, leaflet dentation of the in vitro cultured plants, and leaf area (for S. arcanum). Regarding regeneration, intraspecific and interspecific variability was observed. The accession LA-2185 of S. arcanum …
New Lauraceous Species From The Siwalik Forest Of Arunachal Pradesh, Eastern Himalaya, And Their Palaeoclimatic And Palaeogeographic Implications, Mahasin Ali Khan, Subir Bera
New Lauraceous Species From The Siwalik Forest Of Arunachal Pradesh, Eastern Himalaya, And Their Palaeoclimatic And Palaeogeographic Implications, Mahasin Ali Khan, Subir Bera
Turkish Journal of Botany
Leaf remains of 4 lauraceous taxa collected from the Siwalik sediments (Middle Miocene to Pliocene) of Arunachal Pradesh of eastern Himalaya are described in the present communication. One fossil leaf, Cinnamomum palaeobejolghota sp. nov., was recovered from the lower part of the Siwalik succession (Dafla Formation; Middle to Upper Miocene), while Persea mioparviflora sp. nov., Persea preglaucescens sp. nov., and Lindera neobifaria sp. nov. were collected from the middle part of the Siwalik succession (Subansiri Formation; Pliocene) of Arunachal sub-Himalaya. The geographic distribution of the fossils and their modern counterparts is discussed and on that basis tropical vegetation under warm …
Molecular Phylogeny Of Chlorella-Related Chlorophytes (Chlorophyta) From Anatolian Freshwaters Of Turkey, Özgür Baytut, Cem Tolga Gürkanli, Ari̇f Gönülol, İbrahi̇m Özkoç
Molecular Phylogeny Of Chlorella-Related Chlorophytes (Chlorophyta) From Anatolian Freshwaters Of Turkey, Özgür Baytut, Cem Tolga Gürkanli, Ari̇f Gönülol, İbrahi̇m Özkoç
Turkish Journal of Botany
This study aimed to investigate molecular taxonomic diversity of unicellular chlorophyte strains in the northern Anatolian freshwater habitats of Turkey. Five strains were isolated from various habitats i.e. salty lagoons, shallow lakes, or slow-flowing creeks. The habitats chosen were Cernek lagoon (Kızılırmak Delta, Samsun), Kara lake (Çubuk, Ankara), Sarıkum lagoon (Sinop), and Sırakaraağaçlar creek (Sinop). Although the observations based on light microscopy showed no significant differences in cell morphologies, phylogenetic analysis based on nucleotide sequences of nuclear 18S rDNA and chloroplast 16S rDNA regions suggested that our isolates are related to 3 chlorophyte species: Chlorella vulgaris Beijerinck (S705, S706, and …
Life Cycle Versus Systematic Placement: Phylogenetic And Cytogenetic Studies In Annual Artemisia (Asteraceae, Anthemideae), Jaume Pellicer, Oriane Hidalgo, Teresa Garnatje, Katsuhiko Kondo, Joan Vallès
Life Cycle Versus Systematic Placement: Phylogenetic And Cytogenetic Studies In Annual Artemisia (Asteraceae, Anthemideae), Jaume Pellicer, Oriane Hidalgo, Teresa Garnatje, Katsuhiko Kondo, Joan Vallès
Turkish Journal of Botany
Artemisia L. comprises ca. 20 annual species out of ca. 500, which are distributed mainly across the Old World grades, accounting for multiple independent acquisitions of annual habit throughout the evolutionary history of the genus. This makes Artemisia an interesting subject for the study of plant life cycle evolution in a phylogenetic context and its consequences at genomic level. The main aim of this phylogenetic analysis was to circumscribe 17 of the annual representatives within the major lineages of Artemisia. Genome size has been assessed and ancestral values reconstructed on the tree. Fluorescent in situ hybridisation (FISH) has also been …
The Molecular Characterization And Expression Analyses Of Ethylene Receptor Genes From Watermelon Fruit, Yaşar Karakurt, Muhammet Tonguç, Hali̇me Ünlü
The Molecular Characterization And Expression Analyses Of Ethylene Receptor Genes From Watermelon Fruit, Yaşar Karakurt, Muhammet Tonguç, Hali̇me Ünlü
Turkish Journal of Botany
Watermelon fruit is very sensitive to ethylene, showing rapid deterioration and water-soaking upon ethylene exposure. The objective of this study was to isolate and determine the expressions of ethylene receptor genes in watermelon fruit. As a result of PCR amplification of cDNAs obtained via RT-PCR of total RNA from watermelon fruit with degenerate primers, 3 partial cDNAs were obtained. After extension of the 3' and 5' ends of the cDNAs via 3' and 5' RACE analysis, 3 full-length genes designated as CL-ETR1, CL-ERS1, and CL-ETR2 were obtained. Upon cloning and sequencing, it was determined that the CL-ETR1, CL-ERS1, and CL-ETR2 …
Identification And Functional Analysis Of New Conserved Micrornas And Their Targets In Potato (Solanum Tuberosum L.), Muhammad Din, Muhammad Younas Khan Barozai, Iftekhar Ahmed Baloch
Identification And Functional Analysis Of New Conserved Micrornas And Their Targets In Potato (Solanum Tuberosum L.), Muhammad Din, Muhammad Younas Khan Barozai, Iftekhar Ahmed Baloch
Turkish Journal of Botany
MicroRNAs (miRNAs) are tiny, endogenous, nonprotein-coding, and functionally negative regulators of posttranscriptional gene regulation. Potato (Solanum tuberosum L.) is a starchy and tuberous crop that is also important for its potassium and vitamin contents. Though potato is the world's fourth largest food crop, its miRNAs and their targets have not been well studied. Here we report a comparative genomics approach that was applied to explore miRNAs and their targeted proteins in potato. A total of 120 new miRNAs from 110 families were identified and characterized from the expressed sequence tags. All 120 miRNAs were observed, along with stable stem-loop precursor …
Plastid And Nuclear Genomic Resources Of A Relict And Endangered Plant Species: Chamaedaphne Calyculata (L.) Moench (Ericaceae), Monika Szczecinska, Angelika Gomolinska, Piotr Szkudlarz, Jakub Sawicki
Plastid And Nuclear Genomic Resources Of A Relict And Endangered Plant Species: Chamaedaphne Calyculata (L.) Moench (Ericaceae), Monika Szczecinska, Angelika Gomolinska, Piotr Szkudlarz, Jakub Sawicki
Turkish Journal of Botany
Chamaedaphne calyculata, one of the largest shrubs in the family Ericaceae, is native to boreal zones of the northern hemisphere. The complete nucleotide sequence of the Chamaedaphne plastid genome was determined in the present study. The genome is a circular double-stranded DNA molecule 176,744 bp in length, that includes the typical large single-copy (LSC), small single-copy, and 2 inverted repeats (IR) regions. The C. calyculata plastid genome contains 113 genes, excluding the second IR region. A comparative analysis revealed that the plastid genome organization of the Chamaedaphne plastome is almost identical to that of Vaccinium macrocarpon, the first sequenced chloroplast …
Reproduction And Diversity Of The Endangered Salix Lapponum L. Populations In Eastern Poland, Magdalena Pogorzelec, Katarzyna Glebocka, Barbara Hawrylak-Nowak, Marzena Parzymies
Reproduction And Diversity Of The Endangered Salix Lapponum L. Populations In Eastern Poland, Magdalena Pogorzelec, Katarzyna Glebocka, Barbara Hawrylak-Nowak, Marzena Parzymies
Turkish Journal of Botany
The main aim of the study was to increase the knowledge on the ecology and biology of the boreal relict Salix lapponum L., an endangered plant in Poland, in order to create an effective protection program. An important aspect was to determine the within- and among-population genetic diversity of the studied species in order to evaluate whether the basic stages of the generative reproduction cycle in the populations were correct. The results confirmed that S. lapponum pollen viability and germinability, for both fresh and stored pollen, were high and so were the seed germination ability and dynamics. All individuals were …
Low-Copy Nuclear Gene And Mcgish Resolves Polyploid History Of Eleusine Coracana And Morphological Character Evolution In Eleusine, Qing Liu, Bin Jiang, Jun Wen, Paul Michael Peterson
Low-Copy Nuclear Gene And Mcgish Resolves Polyploid History Of Eleusine Coracana And Morphological Character Evolution In Eleusine, Qing Liu, Bin Jiang, Jun Wen, Paul Michael Peterson
Turkish Journal of Botany
Eleusine coracana (L.) Gaertn. (finger millet) is the third most important cereal crop in semiarid regions of the world, but the degree of relatedness of finger millet with other species in the genus is unverified. The study of morphological character evolution in Eleusine Gaertn. has lagged behind due to lack of relevant research. Polyploidy history of finger millet was analyzed using waxy sequences together with multicolor genomic in situ hybridization (McGISH). In the waxy phylogenetic tree, sequences of 2 homoeologous loci were isolated from 3 tetraploids: Eleusine coracana, E. africana Kenn.-O'Byrne, and E. kigeziensis S.M.Phillips. The 3 species grouped with …
The Role Of Mn-Sod And Fe-Sod Genes In The Response To Low Temperature In Chs Mutants Of Arabidopsis, Zahra Gharari, Ramazanali Khavari Nejad, Reza Shekaste Band, Farzane Najafi, Mohammad Nabiuni, Saeed Irian
The Role Of Mn-Sod And Fe-Sod Genes In The Response To Low Temperature In Chs Mutants Of Arabidopsis, Zahra Gharari, Ramazanali Khavari Nejad, Reza Shekaste Band, Farzane Najafi, Mohammad Nabiuni, Saeed Irian
Turkish Journal of Botany
To determine whether the expression of iron superoxide dismutase (Fe-SOD) and manganese superoxide dismutase (Mn-SOD) increase superoxide-scavenging capacity, and thereby improve the survival rate of chilling sensitive (chs) mutants of Arabidopsis, 4 chs mutant (chs1-1, chs1-2, chs2-1, and chs2-2) and wild-type plants were grown under low (chilling, 13 °C; cold, 4 °C) and normal growth (23 °C) temperatures. Photosynthetic parameters were investigated following treatment with chilling, cold, and normal growth conditions. Chlorophyll content and maximum quantum efficiency of PSII primary photochemistry (Fv/Fm) were reduced in plants grown at chilling stress. The degree of chilling sensitivity of chs1 mutant plants was …
Modulation Of Osmotic Adjustment And Enzymatic Antioxidant Profiling In Apera Intermedia Exposed To Salt Stress, Evren Yildiztugay, Ceyda Özfi̇dan Konakçi, Mustafa Küçüködük, Yağmur Duran
Modulation Of Osmotic Adjustment And Enzymatic Antioxidant Profiling In Apera Intermedia Exposed To Salt Stress, Evren Yildiztugay, Ceyda Özfi̇dan Konakçi, Mustafa Küçüködük, Yağmur Duran
Turkish Journal of Botany
The effects of salinity on growth, osmotic adjustment, and antioxidative responses were evaluated in Apera intermedia. For this purpose, 30-day-old plants were irrigated every other day with Hoagland nutrient solution containing 0, 150, 300, or 600 mM NaCl for 7 and 14 days. The results showed inhibition of growth, relative growth rate, relative water content, and osmotic potential with increasing NaCl concentration. Increased Na^+, Cl^-, and Na^{+}/K^+ ratio and decreased K^+ and Ca^{2+} were determined with increasing NaCl concentrations. The activities of superoxide dismutase and ascorbate peroxidase were conspicuously enhanced at 150 mM NaCl, but activities of catalase, peroxidase, and …
Phytoplankton Functional Groups Provide A Quality Assessment Method By The Q Assemblage Index In Lake Mogan (Turkey), Ayşe Ni̇lsun Demi̇r, Özden Fakioğlu, Berri̇n Dural
Phytoplankton Functional Groups Provide A Quality Assessment Method By The Q Assemblage Index In Lake Mogan (Turkey), Ayşe Ni̇lsun Demi̇r, Özden Fakioğlu, Berri̇n Dural
Turkish Journal of Botany
The aim of this research is to test the Q phytoplankton assemblage index based on phytoplankton functional groups in Lake Mogan and to provide a quality state estimation by data from 2006. Phytoplankton was sampled at 2 stations of the lake, paralleled with physical (water temperature, Secchi depth, pH, conductivity) and chemical (DO, chlorophyll-\alpha, alkalinity, total hardness, soluble reactive phosphorus, total phosphorus, NO_{2}-N, NO_{3}-N, NH_{3}-N) analyses. The Q index was able to follow the main seasonal changes of the physical and chemical parameters and indicated a moderate ecological status for Lake Mogan. Phytoplankton biomass varied between 0.75 and 10.12 mg/L …
Toxicological Evaluation Of Polar And Nonpolar Components Of Isodon Coetsa (Lamiaceae), Sandhya Vincent Neelamkavil, John Ernest Thoppil
Toxicological Evaluation Of Polar And Nonpolar Components Of Isodon Coetsa (Lamiaceae), Sandhya Vincent Neelamkavil, John Ernest Thoppil
Turkish Journal of Botany
Isodon coetsa (Buch.-Ham. ex D.Don) Kudo, a perennial herb used in traditional Chinese folk medicines as an antibacterial, antiinflammatory, and antitumour agent, was subjected to toxicity analysis. Cytotoxic screening using the Allium L. assay was done with extracts containing polar and nonpolar compounds as well as with polar compounds alone. Root tips were treated with different concentrations of both the extracts, 0.005%, 0.01%, 0.05%, and 0.1%, for varying time durations (30 min, 1 h, 2 h, and 3 h). Extremely significant levels of chromosome abnormality (P < 0.001) were observed with the extracts when compared with the positive control (0.01% methyl parathion), but the extract with polar and nonpolar compounds showed higher abnormality percentage. Not much variation was observed in the mitotic index when compared to the negative control (distilled water). Studies revealed many clastogenic and nonclastogenic abnormalities. The major abnormalities included chromosome fragments, stickiness, ring chromosomes, chromosome bridges, pulverization, binucleate cell, micronucleus, ball metaphase, chromosome laggards, and shift in microtubule organizing center. The results showed that the nonpolar components possessed more clastogenic activity, which can be specifically targeted in order to destroy cancer cells. The toxic activity of extracts also suggests the need of judicious use of I. coetsa in folk medicines.