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Influence Of Mycorrhizal Strategy On The Foliar Traits Of The Plants On The Tibetan Plateau In Response To Precipitation And Temperature, Zhaoyong Shi, Yanying Liu, Fayuan Wang, Yinglong Chen
Influence Of Mycorrhizal Strategy On The Foliar Traits Of The Plants On The Tibetan Plateau In Response To Precipitation And Temperature, Zhaoyong Shi, Yanying Liu, Fayuan Wang, Yinglong Chen
Turkish Journal of Botany
Mycorrhizas play key roles in important ecosystem processes and functions. To enhance our understanding of the impact of mycorrhizal strategies on important foliar traits of host plants and their response to climate changes, we analysed 6 selected foliar traits among 54 plant species in 129 sampling sites of ascertained mycorrhizal types on the Tibetan Plateau based on their functional groups. The selected traits were leaf mass per area (LMA), nitrogen concentration (on mass and area bases, N_{mass} and N_{area}, respectively), photosynthetic capacity (A_{mass} and A_{area}) and photosynthetic nitrogen use efficiency (PNUE). The analysed foliar traits showed no significant difference between …
Identification Of 23 Specific Nucleotide Patterns In The Hn Gene Of Newcastle Disease Viruses Isolated From Iran, Majid Esmaelizad, Mehdi P. Ashtiani, Saber Jelokhani Niaraki, Khadije Hashemnejad
Identification Of 23 Specific Nucleotide Patterns In The Hn Gene Of Newcastle Disease Viruses Isolated From Iran, Majid Esmaelizad, Mehdi P. Ashtiani, Saber Jelokhani Niaraki, Khadije Hashemnejad
Turkish Journal of Biology
Newcastle disease is considered the most contagious poultry disease and may cause severe economic loss in the poultry industry. The present study was undertaken to focus on molecular and phylogenetic analyses of the hemagglutinin-neuraminidase (HN) gene in the Iranian isolates. The nucleotide sequence of the HN (780-903 nt) coding region of 6 Newcastle disease viruses (NDVs), isolated from various outbreaks in Iran, was determined and aligned with previously published sequences of 26 NDV isolates in GenBank; the resulting alignment was then analyzed in terms of genetic variation. The number of nucleotide sequence variations presented by each of the isolates indicated …
Genetic Diversity And Identification Of Some Turkish Cotton Genotypes (Gossypium Hirsutum L.) By Rapd-Pcr Analysis, Yonca Surgun, Beki̇r Çöl, Betül Bürün
Genetic Diversity And Identification Of Some Turkish Cotton Genotypes (Gossypium Hirsutum L.) By Rapd-Pcr Analysis, Yonca Surgun, Beki̇r Çöl, Betül Bürün
Turkish Journal of Biology
Cotton (Gossypium hirsutum L.) is the leading fiber crop and the second most important oil seed crop in the world. This study aimed to analyze the genetic differences among 9 cotton genotypes of cultivars from Turkey using the random amplified polymorphic DNA-polymerase chain reaction (RAPD-PCR) method. A total of 42 RAPD primers were used to determine polymorphism among the genotypes and 34 of the primers produced scorable results, with 319 RAPD-PCR bands obtained. The rate of polymorphism was calculated to be 18.1%, and genetic similarity between any 2 genotypes ranged from 90.2% to 96.5%. By evaluating the presence and absence …
Apoplastic And Symplastic Solute Concentrations Contribute To Osmotic Adjustment In Bean Genotypes During Drought Stress, Nesli̇han Saruhan Güler, Aykut Sağlam, Mehmet Demi̇ralay, Asi̇m Kadioğlu
Apoplastic And Symplastic Solute Concentrations Contribute To Osmotic Adjustment In Bean Genotypes During Drought Stress, Nesli̇han Saruhan Güler, Aykut Sağlam, Mehmet Demi̇ralay, Asi̇m Kadioğlu
Turkish Journal of Biology
The present study investigates changes in the inorganic ions, proline, and endogenous abscisic acid (ABA) contents of the apoplastic and symplastic compartments of leaves from drought-tolerant (Yakutiye) and drought-sensitive (Zulbiye) cultivars of the common bean (Phaseolus vulgaris L.). Drought stress caused a decrease in leaf water potential and stomatal conductance in both cultivars. Concentrations of proline in the drought-tolerant and drought-sensitive cultivars increased in response to drought stress in both compartments. The symplastic K^+ concentration decreased in both cultivars. However, the opposite trend was observed concerning K^+ concentrations in the apoplastic areas. While the symplastic Na^+ concentrations significantly decreased in …
Management Of Root-Knot Disease In Eggplant Through The Application Of Biocontrol Fungi And Dry Neem Leaves, Mujeebur Rahman Khan, Fayaz Ahmad Mohiddin, Mohd Nadeem Ejaz, Mohd Mahmud Khan
Management Of Root-Knot Disease In Eggplant Through The Application Of Biocontrol Fungi And Dry Neem Leaves, Mujeebur Rahman Khan, Fayaz Ahmad Mohiddin, Mohd Nadeem Ejaz, Mohd Mahmud Khan
Turkish Journal of Biology
The incorporation of dry neem leaves into the soil significantly enhanced the yield of uninoculated eggplant, but aldicarb treatments at 4 kg a.i./ha proved to be phytotoxic. Inoculation with root-knot nematode Meloidogyne incognita (1500 J_2/plant) caused a significant decrease in both the plant growth (12.5%) and the yield (11.9%) of eggplant cv. Pusa Purple Round. Treatments involving neem leaves, Pochonia chlamydosporia, Paecilomyces lilacinus, Trichoderma harzianum, or aldicarb reduced the suppressive effect of the nematode, leading to a significant increase in the dry matter production and yield of inoculated plants compared to the inoculated control. Neem leaves induced a 19% increase …
Usefulness Of Ca 15-3 For Breast Or Ovarian Primary Sites In Metastatic Adenocarcinoma Of Pleural Fluid, Serpi̇l Oğuztüzün, Murat Kiliç, Ni̇sa Tandogan, Lati̇f Öztürk
Usefulness Of Ca 15-3 For Breast Or Ovarian Primary Sites In Metastatic Adenocarcinoma Of Pleural Fluid, Serpi̇l Oğuztüzün, Murat Kiliç, Ni̇sa Tandogan, Lati̇f Öztürk
Turkish Journal of Biology
This study was conducted to evaluate the diagnostic value of CA 15-3, mammaglobin, c-erbB-2, estrogen receptor (ER), progesterone receptor (PR), CK 20, and CA 125 for detecting metastatic breast and ovarian carcinoma in pleural fluids. The material under study consisted of 26 pleural effusions from invasive breast and ovarian cancer patients from the Hannover Cytopathology Institute. Expressions of these markers were studied using immunocytochemistry. All of the breast cancer cases studied showed a positive reaction with CA 15-3, while only 36% with mammaglobin, 21% with c-erbB-2, 36% with ER, and 7% with PR were positive. The sensitivities of CK 20, …
An Anti-Shigella Dysenteriae Bacteriocin From Pediococcus Pentosaceus Mtcc 5151 Cheese Isolate, Renu Agrawal, Shylaja Dharmesh
An Anti-Shigella Dysenteriae Bacteriocin From Pediococcus Pentosaceus Mtcc 5151 Cheese Isolate, Renu Agrawal, Shylaja Dharmesh
Turkish Journal of Biology
A cheese isolate Pediococcus pentosaceus lactic acid bacterium, which has been deposited at the Microbial Type Culture Collection Centre Chandigarh with the accession number MTCC 5151, was tested for anti-Shigella dysenteriae activity and the bacteriocin was characterized. The protein band was observed with tricine sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE) as a single band with a molecular mass of 23 kDa. This is a new and novel bacteriocin that inhibits S. dysenteriae and has not yet been reported from P. pentosaceus. It was purified on a Sephacryl column and the active fraction specific for anti-Shigella dysenteriae with 23 kDa …
Karyology Of The Scorzonera L. (Asteraceae) Taxa From Turkey, Esra Marti̇n, Özlem Çeti̇n, Serdar Makbul, Ahmet Duran, Meryem Şeker, Derya Boduroğlu, Bahri̇ye Eşmekaya
Karyology Of The Scorzonera L. (Asteraceae) Taxa From Turkey, Esra Marti̇n, Özlem Çeti̇n, Serdar Makbul, Ahmet Duran, Meryem Şeker, Derya Boduroğlu, Bahri̇ye Eşmekaya
Turkish Journal of Biology
In this study, the karyotypes of 13 taxa of the tribe Lactuceae growing naturally in Turkey were examined. Of the species of the genus Scorzonera L. (Asteraceae), S. laciniata L. subsp. laciniata, S. cana (C.A.Mey.) Hoffm. var. jacquiniana (W.Koch) Chamb., S. suberosa C.Koch subsp. suberosa, S. mollis M.Bieb. subsp. mollis, S. papposa DC., S. lacera Boiss. & Bal., S. elata Boiss., and S. parviflora Jacq. have a diploid chromosome number of 2n = 14. For S. phaeopappa (Boiss.) Boiss., this number is 2n = 28, and for S. eriophora DC., S. pseudolanata Grossh., S. tomentosa L., and S. kotschyi Boiss., …
Properties Of Biological Activity Of Ten Wild Almond (Prunus Amygdalus L.) Species, Ali Jahanban Esfahlan, Rashid Jamei
Properties Of Biological Activity Of Ten Wild Almond (Prunus Amygdalus L.) Species, Ali Jahanban Esfahlan, Rashid Jamei
Turkish Journal of Biology
To compare the antioxidant and antiradical activity of phenolic extracts of different species of wild almond kernels (including the brown skin), 10 wild almond species were selected from Shahindezh and Qasemloo Valley in West Azarbaijan Province, Iran. The fruits of these almonds were collected, their kernels were separated from their hulls and shells and then ground, and methanolic extracts were prepared from the kernels. The total phenolic and flavonoid contents were determined using the Folin-Ciocalteu method and a colorimetric method, respectively. The extracts were also evaluated on their reducing power and their capacity to scavenge for DPPH radicals. Significant differences …
The Histopathologic Effects Of Morus Alba Leaf Extract On The Pancreas Of Diabetic Rats, Jamshid Mohammadi, Prakash R. Naik
The Histopathologic Effects Of Morus Alba Leaf Extract On The Pancreas Of Diabetic Rats, Jamshid Mohammadi, Prakash R. Naik
Turkish Journal of Biology
Many traditional treatments have been recommended in the alternative system of medicine for the treatment of diabetes mellitus. Mulberry (Morus alba) is a nontoxic natural therapeutic agent shown to possess hypoglycemic, hypotensive, and diuretic properties. The purpose of this study was to examine the histopathologic effects of Morus alba leaf extract on the pancreas of diabetic rats. The animals were treated with mulberry leaf extract at dosages of 400 and 600 mg/kg body weight for 35 days. The various parameters studied included blood glucose, the relative body weight of the pancreas, the diameter of islets, and the number of \beta …
Antimicrobial And Antiviral Effects Of Essential Oils From Selected Umbelliferae And Labiatae Plants And Individual Essential Oil Components, İlkay Erdoğan Orhan, Berri̇n Özçeli̇k, Murat Kartal, Yüksel Kan
Antimicrobial And Antiviral Effects Of Essential Oils From Selected Umbelliferae And Labiatae Plants And Individual Essential Oil Components, İlkay Erdoğan Orhan, Berri̇n Özçeli̇k, Murat Kartal, Yüksel Kan
Turkish Journal of Biology
The essential oils obtained from Anethum graveolens, Foeniculum vulgare collected at fully-mature and flowering stages, Mentha piperita, Mentha spicata, Lavandula officinalis, Ocimum basilicum (green- and purple-leaf varieties), Origanum onites, O. vulgare, O. munitiflorum, O. majorana, Rosmarinus officinalis, Salvia officinalis, and Satureja cuneifolia, as well as the widely encountered components in essential oils (\gamma-terpinene, 4-allylanisole, (-)-carvone, dihydrocarvone, D-limonene, (-)-phencone, cuminyl alcohol, cuminyl aldehyde, cuminol, trans-anethole, camphene, isoborneol, (-)-borneol, L-bornyl acetate, 2-decanol, 2-heptanol, methylheptane, farnesol, nerol, isopulegol, citral, citronellal, citronellol, geraniol, geranyl ester, linalool, linalyl oxide, linalyl ester, \alpha-pinene, \beta-pinene, piperitone, (-)-menthol, isomenthone, carvacrol, thymol, vanillin, and eugenol), were screened for their …
Morphological And 18s Rrna Analysis Of Coccoid Green Algae Isolated From Lakes Of Kızılırmak Delta, Eli̇f Neyran Soylu, Ari̇f Gönülol
Morphological And 18s Rrna Analysis Of Coccoid Green Algae Isolated From Lakes Of Kızılırmak Delta, Eli̇f Neyran Soylu, Ari̇f Gönülol
Turkish Journal of Biology
Molecular techniques are used today in many areas and have increased the confidence level of studies. The aim of the study was to compare the classical morphological characters of coccoid green algae under field and culture conditions by using modern molecular analysis. To achieve this aim, we first isolated the coccoid green algae from Liman and Cernek lakes. The morphological variations of green algae were observed under culture conditions and the phylogenetic relationships of these strains were defined according to the 18S rRNA gene sequences. According to sequence analysis, 2 of the isolated species had high similarity to Scenedesmus subspicatus …
Genetic Variability Of Beauveria Bassiana And Metarhizium Anisopliae Var. Anisopliae Isolates Obtained From The Eastern Black Sea Region Of Turkey, Ali̇ Sevi̇m, Monica Höfte, Zi̇hni̇ Demi̇rbağ
Genetic Variability Of Beauveria Bassiana And Metarhizium Anisopliae Var. Anisopliae Isolates Obtained From The Eastern Black Sea Region Of Turkey, Ali̇ Sevi̇m, Monica Höfte, Zi̇hni̇ Demi̇rbağ
Turkish Journal of Biology
Beauveria bassiana (Balsamo) Vuillemin and Metarhizium anisopliae var. anisopliae (Metschnikoff) Sorokin are the most common entomopathogenic fungi used in microbial control programs all over the world. Assessments of the genetic variability of these 2 important species are useful for the development of effective biocontrol strategies and for evaluating the impact of artificial epizootics. In this study, the genetic diversity of 13 B. bassiana and 33 M. anisopliae var. anisopliae strains isolated from the hazelnut-growing region of Turkey was determined by using the amplified fragment length polymorphism (AFLP) and \alpha- and \beta-isoenzyme analyses. Cluster analysis of AFLP data clearly separated both …
Cytotoxic Action Of Lead Nitrate On Cytomorphology Of Trigonella Foenum-Graecum L., Sana Choudhary, Mohammad Yunus Khalil Ansari, Zeba Khan, Honey Gupta
Cytotoxic Action Of Lead Nitrate On Cytomorphology Of Trigonella Foenum-Graecum L., Sana Choudhary, Mohammad Yunus Khalil Ansari, Zeba Khan, Honey Gupta
Turkish Journal of Biology
The present experiment was undertaken to determine the mutagenic potential of lead on the cytomorphology of Trigonella foenum-graecum L. and to determine the maximum concentration of lead nitrate that induces maximum genetic variability. The seeds were treated with 6 different concentrations (10, 25, 50, 100, 200, and 400 ppm) of lead nitrate. The higher concentrations of lead nitrate significantly reduced plant height, number of branches per plant, pollen fertility, and yield; higher concentrations also caused variation in the plants at the seedling and mature stages. In addition, concentrations affected the pairing of homologous chromosomes and spindle formation. This resulted in …
A Preliminary Attempt For Efficient Genetic Transformation And Regeneration Of Legume Mucuna Pruriens L. Mediated By Agrobacterium Tumefaciens, Raghavendra Sathyanarayana, Vadlapudi Kumar, Chapeyl.Kumaran Ramesh, Mahadevappa Paresha, Mahaboob Habeebulla Moinuddin Khan
A Preliminary Attempt For Efficient Genetic Transformation And Regeneration Of Legume Mucuna Pruriens L. Mediated By Agrobacterium Tumefaciens, Raghavendra Sathyanarayana, Vadlapudi Kumar, Chapeyl.Kumaran Ramesh, Mahadevappa Paresha, Mahaboob Habeebulla Moinuddin Khan
Turkish Journal of Biology
Mucuna pruriens belongs to the family Papillonaceae. The seeds and leaves of these plants contain a large amount of L-DOPA. L-DOPA (L-3,4-dihydroxyphenylalanine) is one of the most widely used drugs in the treatment of Parkinson disease. Development of an efficient gene transfer method is an absolute requirement for genetically improving Mucuna pruriens and creating plants with more desirable traits. A simple protocol was developed for the Agrobacterium-mediated stable genetic transformation of M. pruriens. Agrobacterium tumefaciens strain EHA 101, containing the vector pCAMBIA1305 and the hptII and GUS plus genes, was used for the gene transfer experiments. Putative transgenic shoots were …
Determination Of Genetic Relationships Among Velezia L. Caryophyllaceae) Species Using Rapd Markers, İlham Eröz Poyraz, Emel Sözen, Ebru Ataşlar, İsmai̇l Poyraz
Determination Of Genetic Relationships Among Velezia L. Caryophyllaceae) Species Using Rapd Markers, İlham Eröz Poyraz, Emel Sözen, Ebru Ataşlar, İsmai̇l Poyraz
Turkish Journal of Biology
Random amplified polymorphic DNA (RAPD) markers were used to determine genetic relationships among Velezia L. species from Turkey. A total of 432 amplified bands were obtained using 14 RAPD primers. The polymorphism in RAPD markers was high (98.61%) and was sufficient to distinguish each species. The degree of band-sharing was used for evaluating the genetic similarity between species and for constructing a dendrogram by the unweighted pair group method with arithmetic mean (UPGMA). Genetic relationships among the species were found to be fully consistent with those obtained by the use of morphological characters. Data obtained from our study demonstrated that …
Poly-3-Hydroxybutyrate-Producing Extreme Halophilic Archaeon: Haloferax Sp. Ma10 Isolated From Çamaltı Saltern, İzmir, Ebru Teki̇n, Mustafa Ateş, Özge Kahraman
Poly-3-Hydroxybutyrate-Producing Extreme Halophilic Archaeon: Haloferax Sp. Ma10 Isolated From Çamaltı Saltern, İzmir, Ebru Teki̇n, Mustafa Ateş, Özge Kahraman
Turkish Journal of Biology
İzmir Çamaltı Saltern is the biggest seawater-based saltern in Turkey. To date, it has not been investigated extensively for the existence of poly-3-hydroxybutyrate (PHB)-producing species. In this study, 14 extremely halophilic archaea were isolated, purified, and screened for PHB production. One strain was then selected as the best PHB producer, further cultivated in different PHB media, and compared with a positive control, Haloferax mediterranei ATCC 33500. PHB was extracted from cells and measured with a spectrophotometer, and then the amount of PHB was measured through comparison with standard PHB. The detected high PHB yield was 6.53% of the dry cell …
Biofilm Formation Comparison Of The Sanipacking® Cooling Tower Fill Material Against Standard Polypropylene Fill Material In A Recirculating Model Water System, İrfan Türetgen, Nazmi̇ye Özlem Şanli Yürüdü, Imke Norden
Biofilm Formation Comparison Of The Sanipacking® Cooling Tower Fill Material Against Standard Polypropylene Fill Material In A Recirculating Model Water System, İrfan Türetgen, Nazmi̇ye Özlem Şanli Yürüdü, Imke Norden
Turkish Journal of Biology
Cooling towers are heat rejection systems that are used in some industrial applications, and they have the potential to develop infectious concentrations of Legionella pneumophila. SANIPACKING® cooling tower fill material and standard polypropylene fill material were compared in terms of biofilm formation potential and anti-Legionella activity within a 4-month period using a laboratory-scale recirculating water system. The recirculating water system was experimentally infected with a L. pneumophila standard strain (ATCC 33152) suspension and operated continuously until all experiments had been completed. Results showed that the L. pneumophila rapidly multiplied in a short time during the study within the model system …
Genetic Diversity Among Salvia Miltiorrhiza Bunge And Related Species Inferred From Nrdna Its Sequences, Li Zhang, Hong-Xia Zhao, Xing Fan, Meng Wang, Chunbang Ding, Rui-Wu Yang, Zhong-Qiong Yin, Xian-Li Xie, Yong-Hong Zhou, De-Guang Wan
Genetic Diversity Among Salvia Miltiorrhiza Bunge And Related Species Inferred From Nrdna Its Sequences, Li Zhang, Hong-Xia Zhao, Xing Fan, Meng Wang, Chunbang Ding, Rui-Wu Yang, Zhong-Qiong Yin, Xian-Li Xie, Yong-Hong Zhou, De-Guang Wan
Turkish Journal of Biology
To investigate the genetic diversity and phylogenetic relationships of Salvia miltiorrhiza and related species, we analyzed the nuclear ribosomal DNA internal transcribed spacer (ITS) region for 7 accessions of Salvia miltiorrhiza and another 23 samples from other taxa within the genus Salvia by maximum parsimony and Bayesian inference analyses. There were 257 variation sites amounting to 40.8% of the total base pairs. All of the data revealed abundant genetic diversity in the genus Salvia. The results showed that the tested materials could be grouped into 3 clusters, and the 3 different occasions in Salvia were clustered into 1 clade, which …
The Effect Of Salt Stress On Antioxidative Enzymes And Proline Content Of Two Turkish Tobacco Varieties, Özge Çeli̇k, Çi̇men Atak
The Effect Of Salt Stress On Antioxidative Enzymes And Proline Content Of Two Turkish Tobacco Varieties, Özge Çeli̇k, Çi̇men Atak
Turkish Journal of Biology
The aim of this study was to compare the salinity tolerances of 2 oriental tobacco varieties (İzmir Özbaş and Akhisar 97). Salinity stress experiments were performed under both in vitro and in vivo conditions. Seedlings of each variety were subjected to 0, 50, 100, 150, 200, 250, 300, and 350 mM NaCl. Photosynthetic pigment levels, lipid peroxidation rate, total protein content, antioxidant enzyme activities, and proline concentrations were determined for seedlings treated with salt for 14 days. The Akhisar 97 variety was found to be more sensitive to salinity stress than the İzmir Özbaş variety. Although proline is thought to …
Influence Of Phytophthora Capsici L. Inoculation On Disease Severity, Necrosis Length, Peroxidase And Catalase Activity, And Phenolic Content Of Resistant And Susceptible Pepper (Capsicum Annuum L.) Plants, Esra Koç, Ayşen Sülün Üstün
Influence Of Phytophthora Capsici L. Inoculation On Disease Severity, Necrosis Length, Peroxidase And Catalase Activity, And Phenolic Content Of Resistant And Susceptible Pepper (Capsicum Annuum L.) Plants, Esra Koç, Ayşen Sülün Üstün
Turkish Journal of Biology
This study explored the level of infection caused by different inoculum concentrations (10^2, 10^3, and 10^4 zoospores mL^-^1) of Phytophthora capsici in 3 pepper cultivars at days 2, 4, and 6. The effect that the infection induced on the peroxidase (POX), catalase (CAT), and phenolics of resistant and sensitive seedlings, as well as the defense mechanism against the pathogen, were also investigated. The resistance of PM-702 against the isolate used was high, whereas KM-Hot and DEM-8 displayed sensitive reactions. As a result of analyses of the leaves and stems from the 3 pepper cultivars, important changes in biochemical parameters were …
Antioxidant Activity And Luteolin Content Of Marchantia Polymorpha L., Alper Gökbulut, Basri̇ Satilmiş, Kadi̇r Batçioğlu, Barbaros Çeti̇n, Engi̇n Şarer
Antioxidant Activity And Luteolin Content Of Marchantia Polymorpha L., Alper Gökbulut, Basri̇ Satilmiş, Kadi̇r Batçioğlu, Barbaros Çeti̇n, Engi̇n Şarer
Turkish Journal of Biology
Antioxidant activity of the methanol and ethyl acetate extracts of Marchantia polymorpha L., which grows naturally in Turkey, was tested by DPPH and ABTS methods. According to the applied methods, both extracts exhibited moderate activity. Some phenolic compounds that could be responsible for the activity were investigated by RP-HPLC, qualitatively and quantitatively, in the methanolic extract of liverwort. While caffeic acid, chlorogenic acid, rutin, myricetin, quercetin, and kaempferol were not found in the extract, luteolin as the liable antioxidant agent was determined as 0.0052 ± 0.0002% among the investigated compounds.
Genetic Diversity Of Natural Cyclamen Alpinum Populations, Belgi̇n Göçmen Taşkin, Ni̇lden Vardareli̇, Ersi̇n Doğaç, Ramazan Mammadov, Vatan Taşkin
Genetic Diversity Of Natural Cyclamen Alpinum Populations, Belgi̇n Göçmen Taşkin, Ni̇lden Vardareli̇, Ersi̇n Doğaç, Ramazan Mammadov, Vatan Taşkin
Turkish Journal of Biology
The focus of this study was Cyclamen alpinum (formerly C. trochopteranthum). Habitat fragmentation, environmental degradation, and overharvesting of tubers have exerted pressure on native populations of this valuable ornamental species. Although the entire Cyclamen genus is in the Convention on International Trade in Endangered Species of Wild Fauna and Flora-Appendix II (CITES II), no species has yet been red-listed. Estimating the level and distribution of genetic variation in populations of rare and endemic species is important for conserving genetic diversity within a species in the context of well-developed conservation strategies. Currently, DNA markers are the most effective means used to …
Alkaline Protease Production Of Bacillus Cohnii Apt5, Ni̇lgün Teki̇n, Arzu Çöleri̇ Ci̇han, Zeki̇ye Serpi̇l Takaç, Canan Yağci Tüzün, Kenan Tunç, Cumhur Çökmüş
Alkaline Protease Production Of Bacillus Cohnii Apt5, Ni̇lgün Teki̇n, Arzu Çöleri̇ Ci̇han, Zeki̇ye Serpi̇l Takaç, Canan Yağci Tüzün, Kenan Tunç, Cumhur Çökmüş
Turkish Journal of Biology
An obligate alkaliphilic Bacillus strain was isolated from a soil sample and identified as Bacillus cohnii APT5 based upon phylogenetic and phenotypic analyses. The optimum growth pH of B. cohnii APT5 was 10.0. B. cohnii APT5 was also found capable of producing an extracellular alkaline protease that showed optimum activity (693,318 U/min) at 50 °C and pH 11.0 when grown in a medium containing casein. The enzyme was partially purified 3.22-fold with a yield of 78.74% after acetone precipitation and cation exchange column chromatography, respectively. The partially purified enzyme maintained its activity when incubated at 50 °C for 2 h. …
A Study On The Characterization And Pathogenicity Of Bacteria From Lymantria Dispar L. (Lepidoptera: Lymantriidae), İsmai̇l Demi̇r, Emi̇ne Eryüzlü, Zi̇hni̇ Demi̇rbağ
A Study On The Characterization And Pathogenicity Of Bacteria From Lymantria Dispar L. (Lepidoptera: Lymantriidae), İsmai̇l Demi̇r, Emi̇ne Eryüzlü, Zi̇hni̇ Demi̇rbağ
Turkish Journal of Biology
Gypsy moth, Lymantria dispar L. (Lepidoptera: Lymantriidae), is one of the most serious pests affecting fruit, forest, industrial, and foliage plants worldwide. The aim of this study was to isolate and characterize pathogenic bacteria from this pest and determine their pathogenicity. L. dispar larvae were collected from various populations in the forest areas of the Black Sea region of Turkey in May and June of 2008 and 2009, and 9 culturable bacterial isolates were obtained from these larvae. Morphological and physiological characteristics of bacterial isolates were determined by conventional and routine techniques, and biochemical properties and metabolic enzyme profiles were …
Copper Bioremoval By Novel Bacterial Isolates And Their Identification By 16s Rrna Gene Sequence Analysis, Eli̇f Ölmezoğlu, Bi̇nnur Kiratli Herand, Mehmet Sali̇m Öncel, Kenan Tunç, Melek Özkan
Copper Bioremoval By Novel Bacterial Isolates And Their Identification By 16s Rrna Gene Sequence Analysis, Eli̇f Ölmezoğlu, Bi̇nnur Kiratli Herand, Mehmet Sali̇m Öncel, Kenan Tunç, Melek Özkan
Turkish Journal of Biology
Copper-tolerant bacteria were isolated from soil samples taken from a region where metal industries are located. After selecting 2 isolates with relatively higher bioremoval efficiency, the effects of increasing copper concentration, pH, and temperature on the bioremoval efficiency of the growing isolates were determined. Strain N1c and strain N5a showed maximal bioremoval efficiency of 82% and 75%, respectively, in 20 mg/L copper-containing medium at pH 6.8 and 30 °C. Although the isolates did not grow well at pH 5, a low amount of copper was removed at pH 5. Slow growth of N5a at pH 5 allowed for 26% copper …