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Articles 31 - 60 of 73
Full-Text Articles in Life Sciences
Internal Transcribed Spacer (Its) Polymorphism In The Wild Primula (Primulaceae) Taxa Of Turkey, Mutlu Gültepe, Uğur Uzuner, Kami̇l Coşkunçelebi̇, Ali̇ Osman Beldüz, Sali̇h Terzi̇oğlu
Internal Transcribed Spacer (Its) Polymorphism In The Wild Primula (Primulaceae) Taxa Of Turkey, Mutlu Gültepe, Uğur Uzuner, Kami̇l Coşkunçelebi̇, Ali̇ Osman Beldüz, Sali̇h Terzi̇oğlu
Turkish Journal of Botany
Twenty-three populations belonging to 10 wild Primula L. (Primulaceae) taxa of Turkey, some of which are morphologically quite similar, were investigated based on nrDNA ITS regions. The plant materials were collected from different geographical areas of Anatolia in vegetation periods of 2005 and 2006. Total genomic DNAs were isolated from the healthy leaves of each population. The entire ITS regions of the populations were amplified by universal primers with the aid of a polymerase chain reaction (PCR), and then the PCR products were sequenced. Neighbour-Joining (NJ) and Maximum Parsimony (MP) trees were constructed in order to identify the relationships among …
Phylogenetic Relationships Of Elymus L. And Related Genera (Poaceae) Based On The Nuclear Ribosomal Internal Transcribed Spacer Sequences, Ayten Di̇zkirici, Zeki̇ Kaya, Evren Cabi̇, Musa Doğan
Phylogenetic Relationships Of Elymus L. And Related Genera (Poaceae) Based On The Nuclear Ribosomal Internal Transcribed Spacer Sequences, Ayten Di̇zkirici, Zeki̇ Kaya, Evren Cabi̇, Musa Doğan
Turkish Journal of Botany
To help in the clarification of the taxonomic status of Elymus L. and related genera Agropyron Gaertn., Leymus Hochst., Hordelymus (Jess.) Harz, and Brachypodium P.Beauv., the sequence diversity in the internal transcribed spacer (ITS) region of nuclear ribosomal DNA was studied. ITS data of 64 Triticeae accessions including 40 Elymus, 12 Agropyron, 7 Leymus, and 4 Hordelymus, and 1 Brachypodium as an out-group were analysed. The molecular diversity statistics indicated that the most diverse genus is Elymus among the studied genera. The constructed phylogenetic tree by the maximum parsimony method revealed that one specimen of Elymus, E. pycnanthus (Godr.) Melderis, …
Pollen And Seed Morphology Of Velezia L. (Caryophyllaceae) Genus In Turkey, İlham Eröz Poyraz, Ebru Ataşlar
Pollen And Seed Morphology Of Velezia L. (Caryophyllaceae) Genus In Turkey, İlham Eröz Poyraz, Ebru Ataşlar
Turkish Journal of Botany
In this study, pollen and seed morphology of Velezia L. (Caryophyllaceae) species in Turkey were investigated by light and scanning electron microscopy. The genus is represented by 5 species in Turkey: V. tunicoides P.H.Davis, V. hispida Boiss., V. quadridentata Sibth. & Sm., V. pseudorigida Hub.-Mor. and V. rigida L. Endemism ratio of the genus is 60%, which shows that Turkey is the gene center for this genus. The pollen grains of Velezia species are radially symmetrical and isopolar, oblate-spheroidal, operculate, and polypantoporate, pores with conical spinules on operculum. Pollen ornamentation, pore numbers, exine thickness, pore diameter, operculum ornamentation, and spinule …
Clonal Propagation Of Dorystoechas Hastata Via Axillary Shoot Proliferation, Bengi̇ Erdağ, Yelda Emek, Serap Aydoğan
Clonal Propagation Of Dorystoechas Hastata Via Axillary Shoot Proliferation, Bengi̇ Erdağ, Yelda Emek, Serap Aydoğan
Turkish Journal of Botany
A protocol for the in vitro seed germination, seedling development, and axillary shoot propagation of Dorystoechas hastata Boiss. & Heldr. ex Bentham is described. By employing sterilised seeds that were transferred onto in vitro media, the effects of various in vitro media, photoperiods, and temperatures on germination were investigated. At the end of these experiments, a final protocol was determined for the in vitro germination of D. hastata seeds. With this protocol, the highest germination rate was obtained with distilled water supplemented with vitamins and 1 mg L^{-1} of gibberellic acid (GA_{3}), with a 16:8 photoperiod at 24 ± 2 …
A Taxonomic Revision Of Salvia Euphratica Sensu Lato And Its Closely Related Species (Sect. Hymenosphace, Lamiaceae) Using Multivariate Analysis, Ahmet Kahraman, Ferhat Celep, Musa Doğan, Safi Bagherpour
A Taxonomic Revision Of Salvia Euphratica Sensu Lato And Its Closely Related Species (Sect. Hymenosphace, Lamiaceae) Using Multivariate Analysis, Ahmet Kahraman, Ferhat Celep, Musa Doğan, Safi Bagherpour
Turkish Journal of Botany
As an initial part of a revisional study based on the genus Salvia L. (Lamiaceae), extensive field studies, herbarium and literature surveys, and multivariate analysis have been conducted on the basis of the Salvia euphratica sensu lato (S. cerino-pruinosa, S. euphratica, S. leiocalycina, and S. pseudeuphratica) and its closely related species (S. kronenburgii and S. sericeo-tomentosa) in order to understand their taxonomic status. For the multivariate analysis, 35 OTUs (Operational Taxonomic Units) representing 24 populations of the species were investigated and scored on the basis of 25 character states by means of MVSP software. Principle coordinate analysis (PCO) utilizing the …
Development Of A Highly Responsive Leaf-Based Regeneration System For Peperomia Species, Mohammad Ahmadabadi, Ralph Bock
Development Of A Highly Responsive Leaf-Based Regeneration System For Peperomia Species, Mohammad Ahmadabadi, Ralph Bock
Turkish Journal of Botany
Several species in the genus Peperomia Ruiz & Pav. have giant chloroplasts in the palisade parenchyma of their leaves. Because of this unique feature, Peperomia metallica L. Linden & Rodigas has become a valuable model plant for studying plastid biology. However, the use of Peperomia for molecular studies has been limited by the lack of efficient regeneration and transformation protocols. In this work, we aimed to develop a reliable regeneration system for Peperomia from leaf explants. Using MS medium complemented with different combinations of phytohormones, a highly efficient in vitro regeneration protocol was developed for P. metallica and P. peduncularis, …
Three Coprinoid Macrofungi Taxa, New To Turkey, Abdullah Kaya, Yusuf Uzun, Ali̇ Keleş, Kenan Demi̇rel
Three Coprinoid Macrofungi Taxa, New To Turkey, Abdullah Kaya, Yusuf Uzun, Ali̇ Keleş, Kenan Demi̇rel
Turkish Journal of Botany
Three coprinoid macrofungi taxa, Coprinus xerophilus Bogart (Agaricaceae), Coprinellus heterothrix (Kühner) Redhead, Vilgalys & Moncalvo, and Coprinopsis stercorea (Fr.) Redhead, Vilgalys & Moncalvo (Psathyrellaceae), are given as new records for Turkey.
Morphological Character Analysis In Turkish Micromeria Benth. (Lamiaceae) Species With A Numerical Taxonomic Study, Turan Arabaci, Tuncay Di̇rmenci̇, Ferhat Celep
Morphological Character Analysis In Turkish Micromeria Benth. (Lamiaceae) Species With A Numerical Taxonomic Study, Turan Arabaci, Tuncay Di̇rmenci̇, Ferhat Celep
Turkish Journal of Botany
As an initial part of a revisional study based on the genus Micromeria Benth. (Lamiaceae), extensive field studies, herbarium and literature surveys, and multivariate analysis have been conducted. Recently, many morphological and molecular studies have been conducted on the genus Micromeria and related genera. Consequently, the generic boundaries of Micromeria have dramatically changed. Therefore, a morphometric analysis was carried out on Turkish Micromeria s.l. species, belonging to sect. Micromeria, sect. Cymularia Boiss., and sect. Pseudomelissa Benth., 2 Clinopodium L. species, and 2 Mentha L. species in order to understand their taxonomic relationship. For morphometric analysis, 27 morphological characters and their …
Comparative Rapd Analysis And Pollen Structure Studies Of Bellis Perennis L., Nesli̇han Kavalcioğlu, Leyla Açik, Nur Münevver Pinar
Comparative Rapd Analysis And Pollen Structure Studies Of Bellis Perennis L., Nesli̇han Kavalcioğlu, Leyla Açik, Nur Münevver Pinar
Turkish Journal of Botany
Random amplified polymorphic DNA (RAPD) is one of the easiest and most commonly used molecular techniques for genetic variability analysis. In the present study, the genetic diversity of analysis of Bellis perennis L. collected in 4 Turkish geographical locations was investigated by RAPD-PCR analysis. In addition to RAPD, pollen analysis of the 4 plant populations was also conducted. Out of 40 RAPD primers tested, 12 exhibited distinct banding patterns showing 45% to 79% polymorphism. Plants from these 4 localities were almost the same morphologically. Considerable differences were observed in the RAPD profile and pollen shape of plants from the Rize/Dereköy …
The Diatoms Of Asartepe Dam Lake (Ankara), With Environmental And Some Physicochemical Properties, Tahi̇r Atici, Emi̇ne Olcay Obali
The Diatoms Of Asartepe Dam Lake (Ankara), With Environmental And Some Physicochemical Properties, Tahi̇r Atici, Emi̇ne Olcay Obali
Turkish Journal of Botany
The shoreline benthic diatoms of Asartepe Dam Lake were identified from different habitats (epipelic, epiphytic, and epilithic) at 7 sampling stations between April 2003 and June 2004. In the investigation, a total of 93 taxa were identified. Of those, Cymbella affinis Kütz., Navicula radiosa Kütz., Ulnaria ulna (Nitzsch) Compère, Pinnularia borealis Ehrenb., Amphora ovalis (Kütz.) Kütz., Cyclotella ocellata Pant. and Nitzschia dissipata (Kütz.) Grunow were observed and abundant at all stations. Some physical and chemical water quality parameters were measured and correlated with biological parameters.
Classification Of Some Plant Species According To Grime’S Strategies In A Quercus Cerris L. Var. Cerris Woodland In Samsun, Northern Turkey, Mahmut Kilinç, Nesli̇han Karavi̇n, Hamdi̇ Güray Kutbay
Classification Of Some Plant Species According To Grime’S Strategies In A Quercus Cerris L. Var. Cerris Woodland In Samsun, Northern Turkey, Mahmut Kilinç, Nesli̇han Karavi̇n, Hamdi̇ Güray Kutbay
Turkish Journal of Botany
This study was carried out on 2 permanent plots of Quercus cerris L. var. cerris woodland in the Kurupelit region of Samsun, northern Turkey. Grime's CSR strategies were determined for 85 plant species from the 2 study plots (61 and 50 species from plot 1 and plot 2, respectively) according to the method that was applied. Most of the plant species in both plots had secondary and tertiary strategies, and this suggests that plants were exposed to more than one pressure factor. In both plots, CR (competitor-ruderal) was the most common strategy.
A New Species Of Silene (Caryophyllaceae) From Turkey, Ergi̇n Hamzaoğlu, Ahmet Aksoy, Ümi̇t Budak
A New Species Of Silene (Caryophyllaceae) From Turkey, Ergi̇n Hamzaoğlu, Ahmet Aksoy, Ümi̇t Budak
Turkish Journal of Botany
Silene bayburtensis Hamzaoğlu & Aksoy sp. nov. is described as a new species from Bayburt province (Turkey). The specimen was collected on a calcareous steppe, in 2 localities, at an altitude between 1700 and 1750 m. The new species is similar to Silene pharnaceifolia Fenzl. The differences between the species are discussed.
Elymus Sosnowskyi (Hackel) Melderis (Poaceae), A Rare Endemic Species In Turkey, Evren Cabi̇, Musa Doğan, Özlem Mavi̇, Ersi̇n Karabacak, Bi̇rol Başer
Elymus Sosnowskyi (Hackel) Melderis (Poaceae), A Rare Endemic Species In Turkey, Evren Cabi̇, Musa Doğan, Özlem Mavi̇, Ersi̇n Karabacak, Bi̇rol Başer
Turkish Journal of Botany
Elymus sosnowskyi, a rare endemic species known from East Anatolia, Turkey, was first collected by D. Sosnowsky in 1912. After that it has been collected only one other time, by F. Sorger in 1981. During the "Taxonomic revision of tribe Triticeae in Turkey" project, which was supported by TÜBİTAK, E. sosnowskyi was recollected from 3 populations in Oltu and Narman (A8 Erzurum, Turkey) in 2007 and 2008. The present study aimed to provide detailed diagnostic characters of this rare endemic species, including its morphological, anatomical, and palynological features. Moreover, the amended and expanded description, distribution, phenology, and ecology of this …
Reseda Globulosa (Resedaceae): A New Record For The Flora Of Turkey, Zeki̇ Aytaç, Hayri̇ Duman
Reseda Globulosa (Resedaceae): A New Record For The Flora Of Turkey, Zeki̇ Aytaç, Hayri̇ Duman
Turkish Journal of Botany
Reseda globulosa Fisch. & C.A.Mey. (Resedaceae) is reported as a new record for Turkish flora. It was identified using the collected specimens and Flora Palaestina. The description, illustration, and distribution of the species are given.
Anomodon Longifolius (Anomodontaceae, Bryopsida) New To The Bryophyte Flora Of Turkey, Muhammet Ören, Güray Uyar, Tamer Keçeli̇
Anomodon Longifolius (Anomodontaceae, Bryopsida) New To The Bryophyte Flora Of Turkey, Muhammet Ören, Güray Uyar, Tamer Keçeli̇
Turkish Journal of Botany
Anomodon longifolius (Schleich. ex Brid.) Hartm. is reported for the first time from Turkey, bringing the total number of Anomodon species known from Turkey to 6. This record extends its distribution range to the Western Black Sea region of Turkey. The nearest localities to Turkey for this species are in Bulgaria, Greece, the Caucasus, and Iran. This submeridional species was collected from 3 different localities (in Bolu and Bartın provinces) in Turkey. A site description, illustrations, and diagnostic characters of the Turkish specimens are given, together with notes on its distribution and ecology.
High Frequency Plant Production Via Shoot Organogenesis And Somatic Embryogenesis From Callus In Tylophora Indica, An Endangered Plant Species, Aastha Sahai, Anwar Shahzad, Mohammad Anis
High Frequency Plant Production Via Shoot Organogenesis And Somatic Embryogenesis From Callus In Tylophora Indica, An Endangered Plant Species, Aastha Sahai, Anwar Shahzad, Mohammad Anis
Turkish Journal of Botany
An efficient and reproducible protocol has been developed for the in vitro production of an endangered medicinal climber Tylophora indica (Burm.f.) Merr. via leaf explants. Different types of calli produced on benzyladenine (BA) and thidiazuron (TDZ) supplemented Murashige and Skoog (MS) basal medium were selected for shoot induction and somatic embryogenesis studies. Calli when transferred from BA (5 µM) and TDZ (2.5 µM) to MS medium containing BA (5 µM) resulted in high frequency shoot induction (26.8 ± 0.97 shoots/culture) along with somatic embryogenesis (10.20 ± 0.37 embryoids/culture) up to 3 subculture passages. Embryoids transformed into complete plantlets when transferred …
Enhanced Adventitious Shoot Regeneration From Aerial Stem Explants Of Ginger Using Tdz And Its Histological Studies, Adinkudikuyyal Lincy, Bhaskaran Sasikumar
Enhanced Adventitious Shoot Regeneration From Aerial Stem Explants Of Ginger Using Tdz And Its Histological Studies, Adinkudikuyyal Lincy, Bhaskaran Sasikumar
Turkish Journal of Botany
A protocol for direct plantlet regeneration from aerial stem explants of ginger (Zingiber officinale Rosc.) has been developed. Adventitious shoots and roots were regenerated from in planta aerial stem explants of 2 ginger varieties viz. var. 'Jamaica' and var. 'Varada'. Maximum shoot and root regeneration were observed in the cultures containing TDZ and IBA (1:1; 1:0.1 mg L-1) in both varieties. Cultures containing TDZ alone showed poor shoot and root formation. Histological studies revealed that the shoot initials originated from the primary thickening meristem and apical meristem, while the root primordial originated from the primary thickening meristem present in the …
Studies On Cytotoxicity Induced By Des And Sa In Vicia Faba Var. Major, Mohd Gulfishan, Ainul Haq Khan, Tarik Ahmad Bhat
Studies On Cytotoxicity Induced By Des And Sa In Vicia Faba Var. Major, Mohd Gulfishan, Ainul Haq Khan, Tarik Ahmad Bhat
Turkish Journal of Botany
The effect of diethyl sulphate (DES) and sodium azide (SA) was studied on the meiotic behaviour of Vicia faba L. var. major in the M1 generation. Five concentrations of SA (0.01%, 0.02%, 0.03%, 0.04%, and 0.05%) were combined with DES (0.02%) to study the synergistic and antagonistic effects of these 2 mutagens. A dose-dependent increase in chromosomal aberrations was recorded in populations treated with both the mutagens individually and their combination doses. The main chromosomal aberrations were stickiness, precocious separations, univalents, multivalents, laggards, unequal separations of chromosomes, micronuclei, disturbed polarity, multinucleate condition, and cytomixis. The stickiness and stray bivalents at …
The Genotoxic Potential Of Two Heavy Metals In Inbred Lines Of Maize (Zea Mays L.), Girjesh Kumar, Prashant Kumar Rai
The Genotoxic Potential Of Two Heavy Metals In Inbred Lines Of Maize (Zea Mays L.), Girjesh Kumar, Prashant Kumar Rai
Turkish Journal of Botany
The genotoxic effects of 2 heavy metals (mercury chloride and cadmium chloride) on the gametic cells of 6 inbred lines of maize were tested in terms of cytological abnormalities. Meiosis was normal under control conditions. During the treatments with mercury and cadmium there was a concentration-dependent increase in meiotic abnormalities in all the inbred lines. A wide spectrum of chromosomal aberrations in the treated sets was stickiness, followed by laggards, bridges, scattering, precocious movement, fragments, etc. Maximum chromosomal anomalies were observed in inbred line CM-142 in both the treatment sets of heavy metals. Compared to CdCl_2, HgCl_2 induced more chromosomal …
A New Record For Turkey: Michauxia Nuda A.Dc. (Campanulaceae), Serdar Aslan, Meci̇t Vural, Bi̇lal Şahi̇n, Esra Ergi̇n, Ömer Faruk Kaya
A New Record For Turkey: Michauxia Nuda A.Dc. (Campanulaceae), Serdar Aslan, Meci̇t Vural, Bi̇lal Şahi̇n, Esra Ergi̇n, Ömer Faruk Kaya
Turkish Journal of Botany
Michauxia nuda A.DC. (Campanulaceae) is recorded for the first time (C8 Siirt province) from Turkey. The diagnostic characters of M. nuda are described and its habitat and conservation status are indicated. Besides, it is illustrated, and a distribution map is presented. Notes on collecting number of type specimen of this species are provided.
New Additions To The Turkish Macromycota From Bingöl Province (Turkey), Yusuf Uzun, Abdullah Kaya, Mustafa Emre Akçay, Kenan Demi̇rel
New Additions To The Turkish Macromycota From Bingöl Province (Turkey), Yusuf Uzun, Abdullah Kaya, Mustafa Emre Akçay, Kenan Demi̇rel
Turkish Journal of Botany
Hymenoscyphus scutula (Pers.) W. Phillips, Crepidotus vulgaris Hesler & A.H. Sm., Psilocybe merdicola Huijsman, and Tricholoma inamoenum (Fr.) Gillet are recorded for the first time from Turkey. Short descriptions and photographs of the taxa are given.
Morphological And Anatomical Studies Of Annual Taxa Of Sideritis L. (Lamiaceae), With Notes On Chorology In Turkey, Ayşegül Güvenç, Hayri̇ Duman
Morphological And Anatomical Studies Of Annual Taxa Of Sideritis L. (Lamiaceae), With Notes On Chorology In Turkey, Ayşegül Güvenç, Hayri̇ Duman
Turkish Journal of Botany
Sideritis L. (Lamiaceae) includes approximately 150 species of annual and perennial plants distributed mainly in the Mediterranean region. In Turkey, 44 species (55 taxa) are native. Three of these species (5 taxa) are annual and these taxa are included in Burgsdorfia and Hesiodia sections. This study was undertaken to investigate the morphological and anatomical properties of 5 annual taxa of Sideritis. Full descriptions and illustrations of these taxa are given, along with some additional information regarding their ecology and phytogeography. The anatomy of the leaf blade, midrib, and stem of the taxa are described and illustrated.
New Morphological Characters For Some Erysimum (Brassicaceae) Species, Bi̇rol Mutlu
New Morphological Characters For Some Erysimum (Brassicaceae) Species, Bi̇rol Mutlu
Turkish Journal of Botany
Trichome shapes were investigated on the outer and inner surfaces of fruit valves of 43 species of Erysimum L., 20 of which are endemic to Turkey, by light microscopy (LM) and scanning electron microscopy (SEM). Five species, Erysimum sorgerae Polatschek., E. huber-morathii Polatschek, E. cheiri (L.) Crantz, E. repandum L. and E. vuralii Yild. were identified, in which there are trichomes on the inner surface of fruit valves, which was determined for the first time in these species. Two morphological distinct types of trichomes were observed on the inner surfaces of the fruit valves of E. huber-morathii and E. repandum, …
A New Subspecies Of Stachys Cretica (Section Eriostomum, Lamiaceae) From Turkey, Ekrem Akçi̇çek
A New Subspecies Of Stachys Cretica (Section Eriostomum, Lamiaceae) From Turkey, Ekrem Akçi̇çek
Turkish Journal of Botany
Stachys cretica L. subsp. kutahyensis Akçiçek subsp. nova is described as a new subspecies from West Anatolia, Turkey. It is related to Stachys cretica L. subsp. vacillans Rech. f. and Stachys cretica L. subsp. anatolica Rech. f., from which it differs in stem, leaf, and flower characters. Diagnostic characters, description, detailed illustrations, and taxonomic comments of the new subspecies are given. The geographical distribution of the subspecies is mapped. IUCN threat category and observations on the population are noted.
Morphological, Karyological And Phylogenetic Evaluation Of Cyclotrichium: A Piece In The Tribe Mentheae Puzzle, Tuncay Di̇rmenci̇, Ekrem Dündar, Görkem Deni̇z, Turan Arabaci, Esra Marti̇n, Zi̇ba Jamzad
Morphological, Karyological And Phylogenetic Evaluation Of Cyclotrichium: A Piece In The Tribe Mentheae Puzzle, Tuncay Di̇rmenci̇, Ekrem Dündar, Görkem Deni̇z, Turan Arabaci, Esra Marti̇n, Zi̇ba Jamzad
Turkish Journal of Botany
The genus Cyclotrichium, a member of the tribe Mentheae subtribe Menthinae (Lamiaceae, Nepetoideae), was analysed with respect to morphological revision, phylogenetic analysis, and cytogenetic properties. All species of the genus were investigated for morphological characters and ITS (internal transcribed spacers) of nrDNA sequence comparison (except C. hausknechtii for ITS). Six members of the genus were also analysed for chromosome numbers. The combined results strongly suggested that Cyclotrichium is a separate genus in Nepetoideae with distinct morphological, phylogenetic, and cytogenetic characteristics. For intrageneric phylogeny of Cyclotrichium, 3 groups were recognised: 1. C. niveum; 2. C. origanifolium; and 3. the remaining 6 …
Re-Evaluated Conservation Status Of Salvia (Sage) In Turkey I: The Mediterranean And The Aegean Geographic Regions, Ferhat Celep, Musa Doğan, Ahmet Kahraman
Re-Evaluated Conservation Status Of Salvia (Sage) In Turkey I: The Mediterranean And The Aegean Geographic Regions, Ferhat Celep, Musa Doğan, Ahmet Kahraman
Turkish Journal of Botany
The precise evaluation of the conservation status of endemic and rare species is necessary in order to prevent their extinction. According to our current taxonomic revision of Turkish Salvia L., the Mediterranean and Aegean geographic regions of Turkey have 60 taxa, 32 of which are endemic (mainly local endemics), 5 of which are non-endemic rare, and the remaining 23 taxa are widely distributed. The rate of endemism is 53% in the area. The destruction of habitat through human encroachment such as urbanisation, land clearing, overgrazing, pollution, and road and dam constructions is the principal threat in the study area. Based …
Comparative Pharmacognostic Studies On The Barks Of Four Ficus Species, K Babu, Gokul Shankar Sabesan, Sadananda Rai
Comparative Pharmacognostic Studies On The Barks Of Four Ficus Species, K Babu, Gokul Shankar Sabesan, Sadananda Rai
Turkish Journal of Botany
The barks of 4 Ficus species, namely F. racemosa, F. virens, F. religiosa and F. benghalensis, are important ingredients in many Ayurvedic and traditional formulations. The barks are considered to be very effective in various treatments, such as diabetes, skin diseases, ulcers, and nervous disorders. During market research, we observed that various species of Ficus barks were sold in Indian market under traditional names, such as Plaksah, Udumbarah, Asvatthah, and Vatah. The barks of the species mention above are usually interchanged or adulterated with other species of Ficus because of the limited knowledge in identification and differentiation. Therefore, a detailed …
Effects Of Moist Chilling, Gibberellic Acid, And Scarification On Seed Dormancy In The Rare Endemic Pedicularis Olympica (Scrophulariaceae), Serap Kirmizi, Gürcan Güleryüz, Hülya Arslan, Fatma Selcen Sakar
Effects Of Moist Chilling, Gibberellic Acid, And Scarification On Seed Dormancy In The Rare Endemic Pedicularis Olympica (Scrophulariaceae), Serap Kirmizi, Gürcan Güleryüz, Hülya Arslan, Fatma Selcen Sakar
Turkish Journal of Botany
We investigated the germination requirements of a rare endemic plant species, Pedicularis olympica Boiss. (Scrophulariaceae), which grows in wet habitats on Uludağ Mountain, Turkey. We studied the effects of scarification, moist chilling (+4 °C) for 15 days, different doses of gibberellic acid (GA_{3}; 100, 150, and 250 ppm) and combined hormone and moist chilling treatments under dark (20 °C) and photoperiod (20/10 °C; 12/12 h, respectively) conditions. GA_{3} was able to break dormancy. The highest germination rate was found in the seeds treated with 250 ppm GA_{3}; 64% of these seeds germinated when treated with moist chilling and incubated in …
Ovule Ontogenesis And Megagametophyte Development In Onobrychis Schahuensis Bornm. (Fabaceae), Abdolkarim Chehregani, Nayereh Tanomi
Ovule Ontogenesis And Megagametophyte Development In Onobrychis Schahuensis Bornm. (Fabaceae), Abdolkarim Chehregani, Nayereh Tanomi
Turkish Journal of Botany
The ovule ontogenesis and the megasporogenesis events in Onobrychis schahuensis Bornm. were studied with light microscopy. The primordium is tetra-zonate and gives rise to an anatropous ovule. The archesporium may consist of one or more archesporial cells, but only one of them undergoes meiosis, forming a linear shaped tetrad. Normally, only a single megaspore is functional, which is located in the chalazal position, while the others degenerate very soon. The young ovule is hemianatropous but the mature one is anatropous, crassinucellar, and bitegmic; integuments form a zig-zag micropyle. A 7-celled embryo-sac is formed corresponding to the Polygonum type. The present …
Twenty-Four New Records For The Freshwater Algae Of Turkey, Tuğba Ongun, Kemal Çeli̇k, Ari̇f Gönülol
Twenty-Four New Records For The Freshwater Algae Of Turkey, Tuğba Ongun, Kemal Çeli̇k, Ari̇f Gönülol
Turkish Journal of Botany
Twenty-four new records for freshwater algae of Turkey were determined in a study conducted from February 2007 to January 2009 in Çaygören Reservoir, Balıkesir, Turkey. Among these, 3 were Cyanobacteria, 3 Euglenophyta, 15 Chlorophyta, 1 Charophyta, 1 Heterokontophyta, and 1 was Dinophyta.