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Articles 95731 - 95760 of 104219
Full-Text Articles in Entire DC Network
Genetic Relationships Of The Genera Onobrychis, Hedysarum, And Sartoria Using Seed Storage Proteins, Emi̇ne Arslan, Kuddi̇si̇ Ertuğrul
Genetic Relationships Of The Genera Onobrychis, Hedysarum, And Sartoria Using Seed Storage Proteins, Emi̇ne Arslan, Kuddi̇si̇ Ertuğrul
Turkish Journal of Biology
Fifteen species belonging to 3 genera (Onobrychis, Hedysarum and Sartoria), collected from different geographical regions of Turkey were studied for the polypeptide patterns of their seed storage proteins. The variability of seed storage proteins was analysed by sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE). As many as 72 bands were scored and a dendrogram was constructed using UPGMA (unweighted pair group method with arithmetic mean). The dendrogram of the electrophoretic protein profiles of seeds showed 2 main clusters. While the first cluster with further subclusters included Onobrychis species, the second cluster included Sartoria and Hedysarum species present in 2 separate subclusters. …
The Superiority Of Cv ‘Rosea’ Over Cv ‘Alba’ Of Periwinkle (Catharanthus Roseus L.) In Alkaloid Production And Other Physiological Attributes, Mohd Idrees, M. Naeem, M. Masroor A. Khan
The Superiority Of Cv ‘Rosea’ Over Cv ‘Alba’ Of Periwinkle (Catharanthus Roseus L.) In Alkaloid Production And Other Physiological Attributes, Mohd Idrees, M. Naeem, M. Masroor A. Khan
Turkish Journal of Biology
A pot experiment was conducted during the winter season of 2006, on 2 cvs. of periwinkle (Catharanthus roseus L.), namely "rosea" (Pink) and "alba" (White), to investigate their performance in terms of growth, yield, and alkaloid production, as well as other physiological and biochemical attributes. The plants were harvested at 60, 90, and 150 days after planting (DAP) and the yield was recorded at 210 DAP. The results showed that "rosea" was superior to "alba" in plant height, total and individual leaf area, and fresh and dry weights at 90 DAP. Net photosynthetic rate, stomatal conductance, carbonic anhydrase activity and …
Characterization Of Essential Oils Of Some Salvia Species And Their Antimycobacterial Activities, Tüli̇n Aşkun, K. Hüsnü Can Başer, Gülendam Tümen, Mi̇ne Kürkçüoğlu
Characterization Of Essential Oils Of Some Salvia Species And Their Antimycobacterial Activities, Tüli̇n Aşkun, K. Hüsnü Can Başer, Gülendam Tümen, Mi̇ne Kürkçüoğlu
Turkish Journal of Biology
The compositions of the essential oils of 5 Turkish Salvia species, namely Salvia aucheri Bentham var. aucheri (endemic for Turkey), Salvia aramiensis Rech. fil., Salvia fruticosa Mill., Salvia tomentosa Mill., and Salvia verticillata L. subsp. amasiaca (Freyn & Bornm.) Bornm., were studied. Water distilled essential oils from the aerial parts of Salvia species from Turkey were analysed by GC and GC/MS. Salvia aucheri var. aucheri, Salvia aramiensis, and Salvia fruticosa oils have the same main constituent: 1,8-cineole (39.2%, 55.6%, and 52.8% respectively). \alpha-Pinene (25.1%), camphor (14.9%), and borneol (13.2%) were identified as the major components of Salvia tomentosa. The main …
Nutritive Value Of Edible Wild And Cultured Mushrooms, Sevda Kirbağ, Mehmet Akyüz
Nutritive Value Of Edible Wild And Cultured Mushrooms, Sevda Kirbağ, Mehmet Akyüz
Turkish Journal of Biology
The nutritive value of Pleurotus ostreatus (Jacq. ex Fr.) Kumm., Pleurotus sajor-caju (Fr.) Singer, and Agaricus bisporus (Large) Sign. was determined. Dry matter, moisture, crude ash, protein, fat, cellulose, organic matter, and nitrogen-free extract were 89.7%-90.3%, 9.7%-10.3%, 6.0%-13.7%, 27.8%-41.6%, 0.5%-1.3%, 10.0%-16.2%, 76.0%-84.0%, and 26.7%-36.8% of dry weight, respectively. Mineral element contents were 14.1-45.6 g K kg^{-1}, 0.2-1.2 g Ca kg^{-1} , 0.4-1.9 g Mg kg^{-1}, and 0.2-0.9 g Na kg^{-1} as macronutrients, and 176.5-838.0 mg Fe kg^{-1}, 35.0-46.0 mg Zn kg^{-1}, 4.8-65.4 mg Mn kg^{-1}, 6.5-21.5 mg Cu kg^{-1}, 0.0-11.5 mg Cr kg^{-1}, and 0.0-1.65 mg Cd kg^{-1} as micronutrients …
Germination Characteristics And Molecular Characterizations Of Some Wheat Varieties In Sulaimanyah By Ssr Marker, Nawroz Abdul-Razzak Tahir
Germination Characteristics And Molecular Characterizations Of Some Wheat Varieties In Sulaimanyah By Ssr Marker, Nawroz Abdul-Razzak Tahir
Turkish Journal of Biology
The genetic diversity of 11 bread and durum wheat varieties was estimated using germination characteristic and molecular analysis. The phenotypic data showed highly significant differences between cultivars for germination speed, germination percentage, seedling length, fresh weight, and dry weight. Simple sequence repeats (SSRs) were used to examine the genomic diversity of wheat (Triticum aestivum L. and Triticum durum L.). Eleven wheat varieties of diverse origins were analyzed with 12 selected SSRs to provide uniform and maximum genome coverage. A total of 18 bread wheat and 20 durum wheat polymorphic allelic variants were detected, ranging from 1 to 4 per locus …
Effects Of Chromium Vi Stress On Green Alga Ulva Lactuca (L.), Di̇lek Ünal, Nuray O. Işik, Atakan Sukatar
Effects Of Chromium Vi Stress On Green Alga Ulva Lactuca (L.), Di̇lek Ünal, Nuray O. Işik, Atakan Sukatar
Turkish Journal of Biology
In order to contribute to the understanding of its response to metal stress, Ulva lactuca (L.) was treated with different concentration of chromium (VI) (0.2, 0.5, 1, and 5 mM K2CrO4), and alterations in Fv/Fm ratio (maximal photochemical efficiency of PSII) and cell viability were investigated. Significant alterations of the maximal photochemical efficiency of PSII (Fv/Fm) ratio were observed in response to the increase in chromium concentration. The Fv/Fm ratio decreased in Ulva lactuca following 2 h treatment with 1 and 5 mM Cr(VI) solution. The cell viability was decreased in cells exposed to higher Cr(VI) concentrations. Thallus cell morphology …
Determination Of The Relationship Between Some Centaurea Species Based On Sds-Page, Tuna Uysal, Emi̇ne Arslan, Osman Tugay, Kuddi̇si̇ Ertuğrul
Determination Of The Relationship Between Some Centaurea Species Based On Sds-Page, Tuna Uysal, Emi̇ne Arslan, Osman Tugay, Kuddi̇si̇ Ertuğrul
Turkish Journal of Biology
The protein patterns of 47 Centaurea species from Turkey were obtained using SDS-PAGE methods. Relationships between Centaurea species and related genera were evaluated via use of a dendrogram. SDS-PAGE provided protein profiles for an important and applicable selection within Centaurea, particularly for the section Cheirolepis and its relatives. We determined that the technique could be used to resolve taxonomic and evolutionary problems in the genus Centaurea, as most of the Centaurea species studied exhibited special protein profiles and patterns.
Studies On The Shelf Life Of Bread Using Acidulants And Their Salts, Omer Mukhtar Tarar, Salim Ur-Rahman, Ghulam Mueen Ud Din, Mian Anjum Murtaza
Studies On The Shelf Life Of Bread Using Acidulants And Their Salts, Omer Mukhtar Tarar, Salim Ur-Rahman, Ghulam Mueen Ud Din, Mian Anjum Murtaza
Turkish Journal of Biology
White bread loaves prepared from wheat flour and the addition of different levels of acidulants, i.e. acetic and lactic acid with calcium propionate, were evaluated for their microbial shelf life as well as sensory quality characteristics during 96 h of storage. Among the sensory characteristics for the different treatments, volume of bread, color of crust, symmetry of form, crust characteristics, grain, and crumb color differed significantly, and the scores were 6.5-7.4, 5.8-6.8, 2.9-3.4, 2.7-3.1, 10.6-11.8, and 6.8-7.4, respectively, whereas evenness of bake, aroma, taste, and texture were not significantly different. Storage for 96 h affected the aroma, taste, texture, and …
A Study On The Morphology Of Argulus Foliaceus Lin., 1758 (Crustacea; Branchiura) Procured From Çavuşcu Lake (Central Anatolia-Turkey) With Scanning Electron Microscopy, Ali̇ Alaş, Ahmet Öktener, Kemal Solak
A Study On The Morphology Of Argulus Foliaceus Lin., 1758 (Crustacea; Branchiura) Procured From Çavuşcu Lake (Central Anatolia-Turkey) With Scanning Electron Microscopy, Ali̇ Alaş, Ahmet Öktener, Kemal Solak
Turkish Journal of Biology
In this study, 24 carps (Cyprinus carpio Lin.,1758) caught from Çavuşçu Lake (Konya; 36°41´N, 34°26´E) were examined for metazoan parasites. Infestation rate of Argulus foliaceus Lin.,1758 was found to be 45.8%. In addition, Argulus foliaceus was photographed using a scanning electron microscope (SEM) and a light microscope.
Aphrodisiac Activity And Curative Effects Of Pedalium Murex (L) Against Ethanol Induced Infertility In Male Rats, Gunasekaran Balamurugan, P. Muralidharan, Satyanarayana Polapala
Aphrodisiac Activity And Curative Effects Of Pedalium Murex (L) Against Ethanol Induced Infertility In Male Rats, Gunasekaran Balamurugan, P. Muralidharan, Satyanarayana Polapala
Turkish Journal of Biology
It has been suggested that chronic ethanol exposure may result in testicular damage and infertility in males. Petroleum ether extract of Pedalium murex, family Pedaliaceae (PEPM), is evaluated in this study for its ability to increase aphrodisiac activity and to cure ethanol induced germ cell damage and infertility in male rat models. Doses of 200 and 400 mg/kg of PEPM showed a significant increase (P < 0.01, P < 0.001) in mating and mounting behaviour. The effect on fertility factors such as total body weight, percentage of pregnancy, litter size were also significantly increased (P < 0.01) in comparison with the ethanol-treated group. Significant increases in sperm motility and count were observed in PEPM-treated groups in a dose-dependent manner (P < 0.01; P < 0.001) as compared with the ethanol-treated group. Similarly, reductions in the percentage of abnormal sperm were noted in animals treated with PEPM 400 mg/kg. The effects of PEPM on total protein, total cholesterol and testosterone were satisfactory, the levels being increased significantly for protein (P < 0.05), cholesterol (P < 0.01) and testosterone (P < 0.05) by 400 mg/kg PEPM. Microtome sections of the testes of animals treated with 400 mg/kg PEPM exhibited restoration and recovery of germinal cells and the luminal spermatozoa and were comparable with the control group animals. These effects of PEPM make this natural herb ideal as an aphrodisiac and a potent fertility enhancing drug.
Antioxidant And Antiradical Activities Of Phenolic Extracts From Iranian Almond (Prunus Amygdalus L.) Hulls And Shells, Ali Jahanban Isfahlan, Ahmad Mahmoodzadeh, Abdollah Hasanzadeh, Reza Heidari, Rashid Jamei
Antioxidant And Antiradical Activities Of Phenolic Extracts From Iranian Almond (Prunus Amygdalus L.) Hulls And Shells, Ali Jahanban Isfahlan, Ahmad Mahmoodzadeh, Abdollah Hasanzadeh, Reza Heidari, Rashid Jamei
Turkish Journal of Biology
Wild almonds of Iran show genetic diversity and have very a large distribution. Different species of these almonds have more variation in genes resistant to dryness, saltiness, diseases, pests, and other factors. In order to compare the antioxidant and antiradical activity of wild almond hull and shell phenolic extracts, 4 wild almond species (Amygdalus lycioides Spach, A. kotschyi Boiss. & Hohen, A. pabotti Browicz, A. trichamygdalus (Hand.-Mzt) Woronow) were selected from Shahindezh and Qasemloo Valley, West Azerbaijan province, Iran, in 2007. The fruits of these almonds were collected, their hulls and shells were dried and then ground, and then methanolic …
Phytoplankton Composition And Environmental Conditions Of The Mucilage Event In The Sea Of Marmara, Vi̇ldan Tüfekçi̇, Nesli̇han Balkis, Çolpan Polat Beken, Di̇lek Edi̇ger, Mustafa Mantikçi
Phytoplankton Composition And Environmental Conditions Of The Mucilage Event In The Sea Of Marmara, Vi̇ldan Tüfekçi̇, Nesli̇han Balkis, Çolpan Polat Beken, Di̇lek Edi̇ger, Mustafa Mantikçi
Turkish Journal of Biology
The composition and abundance of phytoplankton and the corresponding environmental conditions were investigated during a mucilage event (October 2007-February 2008) in the Sea of Marmara. The mucilage producers Gonyaulax fragilis, Skeletonema costatum, and Cylindrotheca closterium were identified as abundant species. Thallassiosira rotula was also identified in large numbers. The maximum number of G. fragilis was observed at 83,600 cells L^{-1} in November 2007 during the first sampling occasion on the surface layer of İzmit Bay, and T. rotula was the most abundant diatom species, with 131,040 cells L^{-1} in the same period. G. fragilis was recorded at 96,250 cells L^{-1} …
Diurnal Variations Of Summer Phytoplankton And Interactions With Some Physicochemical Characteristics Under Eutrophication In The Dardanelles, Muhammet Türkoğlu, Yasemi̇n Erdoğan
Diurnal Variations Of Summer Phytoplankton And Interactions With Some Physicochemical Characteristics Under Eutrophication In The Dardanelles, Muhammet Türkoğlu, Yasemi̇n Erdoğan
Turkish Journal of Biology
This study was carried out to determine the diurnal distributions of phytoplankton density, bio-volume, and chlorophyll a in relation to nutrients and CTD measurements in surface waters of the coastal area in the Dardanelles during high density of phytoplankton, especially high diatom production (between 3 July and 4 August 2002). Ninety nine surface samples were collected for nutrient, chlorophyll a, and phytoplankton in 3 different time periods of the day (08:00, 13:00 and 18:00 hours) in the sampling period. Based on the sample analyses, average temperature, salinity, pH, DO, TDS, TSS, NO-2+NO-3, PO-34, SiO4, chlorophyll a, N:P, and Si:P were …
Relation Of The Wnt/Β-Catenin Signaling Pathway With Gynecological Cancers, Hani̇fe Güler Tanir, Şayeste Demi̇rezen, Mehmet Si̇nan Beksaç
Relation Of The Wnt/Β-Catenin Signaling Pathway With Gynecological Cancers, Hani̇fe Güler Tanir, Şayeste Demi̇rezen, Mehmet Si̇nan Beksaç
Turkish Journal of Biology
The Wnt signaling pathway is evolutionary conserved and controls many biological processes like cell proliferation and differentiation. It also provides planar polarity, regulation of the cell cycle, and cell adhesion during both the embryonic and adult period. However, it has been widely considered in the literature that some pathological alterations in various biomolecules involved in this pathway, and aberrant activation of signaling have important roles primarily in the genesis of colorectal and cervical cancer and several other serious diseases. The Wnt signaling pathway diversifies into 3 types: Wnt\beta-catenin signaling pathway, planar cell polarity pathway, and Wnt/calcium (Ca^{+2}) pathway. Only the …
The Genotoxic And Antigenotoxic Effects Of Aloe Vera Leaf Extract In Vivo And In Vitro, Ahmet Kayraldiz, Ayşe Yavuz Kocaman, Eyyüp Rencüzoğullari, Erman Sali̇h İsti̇fli̇, Hasan Basri̇ İla, Mehmet Topaktaş, Yusuf Kenan Dağlioğlu
The Genotoxic And Antigenotoxic Effects Of Aloe Vera Leaf Extract In Vivo And In Vitro, Ahmet Kayraldiz, Ayşe Yavuz Kocaman, Eyyüp Rencüzoğullari, Erman Sali̇h İsti̇fli̇, Hasan Basri̇ İla, Mehmet Topaktaş, Yusuf Kenan Dağlioğlu
Turkish Journal of Biology
The genotoxic and antigenotoxic effects of Aloe vera leaf extract (AV) were investigated using the chromosome aberrations (CAs) test for the bone marrow cells of rats, sister chromatid exchanges (SCEs) and micronucleus (MN) and CAs tests for human lymphocytes, and the Ames Salmonella/microsome test system. In the bone marrow cells of rats, AV extract significantly induced structural and total CAs at all concentrations and in all treatment periods. In human peripheral lymphocytes, AV did not increase the mean SCE; however, it significantly induced the MN frequency and structural CAs. In addition, AV showed a cytotoxic effect by decreasing the replication …
Cytogenetic Study On The European Brown Hare (Lepus Europaeus Pallas, 1778) (Mammalia: Lagomorpha) In Turkey, Yasi̇n Demi̇rbaş, Nursel Aşan, İrfan Albayrak
Cytogenetic Study On The European Brown Hare (Lepus Europaeus Pallas, 1778) (Mammalia: Lagomorpha) In Turkey, Yasi̇n Demi̇rbaş, Nursel Aşan, İrfan Albayrak
Turkish Journal of Biology
Conventional and GTC, CTC, and AgNO_3 banded karyotypes of brown hares (Lepus europaeus Pallas, 1778) from Turkey are described for the first time. All specimens possessed a diploid number of 2n = 48 chromosomes and a fundamental autosomal number of NFa = 88. The chromosome set consisted of 8 metacentric and submetacentric pairs and 15 subtelocentric and acrocentric pairs decreasing in size from large to small. The X chromosome was a large submetacentric while the Y was a small acrocentric. In contrast with the other specimens, the Kilis specimen possessed a duplication in the long arm of one of the …
Cytogenetic Effects Of Helichrysum Arenarium In Human Lymphocytes Cultures, Hali̇l Erhan Eroğlu, Ergi̇n Hamzaoğlu, Ahmet Aksoy, Ümi̇t Budak, Sevi̇l Albayrak
Cytogenetic Effects Of Helichrysum Arenarium In Human Lymphocytes Cultures, Hali̇l Erhan Eroğlu, Ergi̇n Hamzaoğlu, Ahmet Aksoy, Ümi̇t Budak, Sevi̇l Albayrak
Turkish Journal of Biology
Helichrysum Mill., belonging to the family Asteraceae, is commonly known as "everlasting". Helichrysum species have been used as herbal tea for centuries in Turkey against gallbladder disorders because of their bile regulatory and diuretic properties. However, there are few reports in the literature regarding the genotoxic effects of these plants. In the present study, the genotoxic effects induced by aqueous (decoction) and methanol extracts of Helichrysum arenarium (L.) Moench subsp. rubicundum (K.Koch) P.H.Davis & Kupicha, H. arenarium (L.) Moench subsp. aucheri (Boiss.) P.H.Davis & Kupicha, and H. arenarium (L.) Moench subsp. erzincanicum P.H.Davis & Kupicha on human lymphocyte cultures at …
Molecular Characterization Of Rhizoctonia Solani Ag4 Using Pcr-Rflp Of The Rdna-Its Region, Meli̇ke Çebi̇ Kiliçoğlu, İbrahi̇m Özkoç
Molecular Characterization Of Rhizoctonia Solani Ag4 Using Pcr-Rflp Of The Rdna-Its Region, Meli̇ke Çebi̇ Kiliçoğlu, İbrahi̇m Özkoç
Turkish Journal of Biology
Rhizoctonia solani isolates obtained from common beans (Phaseolus vulgaris L.) were included in an AG4 anastomosis group in accordance with hyphal anastomosis. In the subgrouping of AG4 isolates, PCR-RFLP patterns in the rDNA-ITS were used. After obtaining the genomic DNA belonging to R. solani AG4, an approximately 700 bp amplification product of the ITS1-5.8S-ITS2 region was obtained with PCR, using ITS1 and ITS4 universal primers. The PCR products were digested with MseI, HincII, AvaII, and MfeI restriction endonucleases, and different PCR-RFLP patterns were obtained for the AG4 HGI and AG4 HGII subgroups. In this study, in addition to the enzymes …
Barley Germplasms Developed For Scald Disease Resistance Exhibited A High Level Of Genetic Diversity Based On Srap Markers, Ayten Di̇zkirici, Zeki̇ Kaya, H. Eli̇f Güren, Hi̇kmet Budak
Barley Germplasms Developed For Scald Disease Resistance Exhibited A High Level Of Genetic Diversity Based On Srap Markers, Ayten Di̇zkirici, Zeki̇ Kaya, H. Eli̇f Güren, Hi̇kmet Budak
Turkish Journal of Biology
The objective of this study was to assess the genetic diversity and genetic relationships among 59 Turkish barley (Hordeum vulgare L.) germplasm lines (maintained for scald disease resistance breeding) using sequence-related amplified polymorphism (SRAP) markers. Seventeen SRAP primer combinations produced 83 polymorphic markers, with a mean polymorphism of 73.5%. The dendrogram created based on Nei's unweighted-pair group method using arithmetic average (UPGMA) indicated that there were 4 main clusters, which was supported by principle component analysis (PCA). Cluster I primarily included only scald-resistant germplasm lines, while clusters III and IV consisted of only scald-sensitive lines, but cluster II had both …
The Effect Of Activator Application On The Anatomy, Morphology, And Viability Of Lycopersicon Esculentum Mill. Pollen, İlkay Öztürk Çali, Feyza Candan
The Effect Of Activator Application On The Anatomy, Morphology, And Viability Of Lycopersicon Esculentum Mill. Pollen, İlkay Öztürk Çali, Feyza Candan
Turkish Journal of Biology
The present study examined the effect of ACT-2, a K-vitamin group activator intensively applied to tomato (Lycopersicon esculentum Mill.), on the anatomy, morphology, and viability of tomato pollen from plants grown under greenhouse conditions. The activator was applied to tomatoes at the recommended dosage (150 cc/100 L of tap water) and double the recommended dosage (300 cc/100 L of tap water). Pollen width and length, exine and intine layer thickness, pore width and length, and crevice width and length were measured using an ocular micrometer. Reductions were observed in all the measured parameters in all application groups, except for pollen …
Physiological And Antioxidant Response Of Three Cultivars Of Cucumber (Cucumis Sativus L.) To Salinity, Gökçen Baysal Furtana, Ruki̇ye Tipirdamaz
Physiological And Antioxidant Response Of Three Cultivars Of Cucumber (Cucumis Sativus L.) To Salinity, Gökçen Baysal Furtana, Ruki̇ye Tipirdamaz
Turkish Journal of Biology
The effects of salinity on the growth, relative water content (RWC), chlorophyll content, inorganic ions, proline accumulation, lipid peroxidation and antioxidant enzymes, superoxide dismutase (SOD), ascorbate peroxidase (APOX), and catalase (CAT) of 3 cucumber (Cucumis sativus L.) cultivars (Çengelköy, Anadolu F1, and Beith Alpha) were investigated. Cucumber cultivars were grown in perlite culture and irrigated with half-strength Hoagland nutrient solution for a period of 35 days under controlled conditions. After this period, seedlings were treated with 150 mM NaCl solution and the plants were harvested on day 7 and day 14 of salt treatment. The fresh and dry weights, RWC, …
Adventitious Shoot Regeneration From Stem Internode Explants Of Verbena Officinalis L., A Medicinal Plant, Arzu Uçar Türker, Buhara Yücesan, Ekrem Gürel
Adventitious Shoot Regeneration From Stem Internode Explants Of Verbena Officinalis L., A Medicinal Plant, Arzu Uçar Türker, Buhara Yücesan, Ekrem Gürel
Turkish Journal of Biology
Verbena officinalis L. (vervain) is a medicinal plant that shows several biological activities, including antimicrobial, antiinflammatory, analgesic, neuroprotective, hypnotic/sedative, gastroprotective, hepatoprotective, anticancer, cicatrizant, and antioxidant. This report describes an efficient plant regeneration system for V. officinalis via adventitious shoot development from stem internode and petiole explants. Stem internode explants were more effective than petiole explants in terms of both the number of shoots per explant and the percentages of explants forming shoots. Increasing benzyladenine (BA) concentrations steadily increased shoot formation up to 13.32 µM, but 22.22 µM BA caused a sharp decrease. The highest number of shoots (17.1 shoots per …
The Effects Of Excessive Mineral Salts And Vitamins On Fiber Cell Thickness In Flax (Linum Usitatissimum L. Cultivar Sarı 85), Hati̇ce Demi̇ray, Ayli̇n Eşi̇z Dereboylu
The Effects Of Excessive Mineral Salts And Vitamins On Fiber Cell Thickness In Flax (Linum Usitatissimum L. Cultivar Sarı 85), Hati̇ce Demi̇ray, Ayli̇n Eşi̇z Dereboylu
Turkish Journal of Biology
The effects of mineral salts on fiber cell thickness in flax (Linum usitatissimum L. cultivar Sarı 85) were investigated in plants grown in medium both rich and poor in mineral salts and vitamins. Three media were investigated: control (MS medium), mineral salt and vitamin deficient MS medium, and mineral salt and vitamin rich MS medium. While chlorophyll a, chlorophyll b, total chlorophyll, and carotenoid pigment content significantly increased in the medium rich in mineral salts and vitamins, they decreased in the medium poor in mineral salts and vitamins. Moreover, the chlorophyll a:chlorophyll b ratio increased in the medium poor in …
Indole-3-Acetic Acid And Gibberellic Acid Production In Aspergillus Niger, Işil Seyi̇s Bi̇lkay, Şafak Karakoç, Ni̇lüfer Aksöz
Indole-3-Acetic Acid And Gibberellic Acid Production In Aspergillus Niger, Işil Seyi̇s Bi̇lkay, Şafak Karakoç, Ni̇lüfer Aksöz
Turkish Journal of Biology
The effects of incubation time, temperature, pH, and agitation on indole-3- acetic acid and gibberellic acid production in Aspergillus niger were studied. For indole-3-acetic acid production, 6 days of incubation at 25 °C and pH 6.0 was found to be optimum. Optimum conditions for gibberellic acid production were 12 days of incubation at 30 °C and pH 5.0. Agitation increased both indole-3-acetic acid and gibberellic acid production.