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Articles 1201 - 1230 of 1681
Full-Text Articles in Biology
In Vitro Antimicrobial And Antioxidant Activities Of Methanol And Hexane Extract Of Astragalus Species Growing In The Eastern Anatolia Region Of Turkey, Ahmet Adigüzel, Münevver Sökmen, Hakan Özkan, Güleray Ağar, Medi̇ne Güllüce, Fi̇kretti̇n Şahi̇n
In Vitro Antimicrobial And Antioxidant Activities Of Methanol And Hexane Extract Of Astragalus Species Growing In The Eastern Anatolia Region Of Turkey, Ahmet Adigüzel, Münevver Sökmen, Hakan Özkan, Güleray Ağar, Medi̇ne Güllüce, Fi̇kretti̇n Şahi̇n
Turkish Journal of Biology
This study was conducted to evaluate the antimicrobial and antioxidant activities of the hexane and methanol extracts of the aboveground parts and roots of some Astragalus species grown in the vicinity of Erzurum, located in the eastern Anatolia, Turkey. The methanol extract, which was obtained from the aboveground parts of Astragalus species, exhibited mild free radical scavenging activity providing 50% inhibition at the concentrations between 68.8 and 400.4 \mug/ml. The hexane/dichloromethane extracts of the aboveground parts of Astragalus species did not show any free radical scavenging activity. However, the linoleic acid oxidation inhibition ability of the non-polar extracts seems to …
Comparison Of Gst Isoenzyme Expression In Normal And Neoplastic Breast Tissue: Correlation With Clinical And Prognostic Factors, Serpi̇l Oğuztüzün, Mesude İşcan, Müzeyyen Özhavzali, Serpi̇l Di̇zbay Sak
Comparison Of Gst Isoenzyme Expression In Normal And Neoplastic Breast Tissue: Correlation With Clinical And Prognostic Factors, Serpi̇l Oğuztüzün, Mesude İşcan, Müzeyyen Özhavzali, Serpi̇l Di̇zbay Sak
Turkish Journal of Biology
Glutathione S-transferases in breast tissue play an important role in the susceptibility to the mutagenic effects of chemical carcinogens and in the response of breast tumors to chemotherapy. In this study the immunohistochemical staining characteristics of glutathione S-transferase isoenzymes (alpha, mu, pi, and theta) were investigated in invasive duct carcinomas and in normal breast tissue of 43 patients. The relationships between the expression of the GST isoenzymes and some clinicopathological features were also examined. Diffuse cytoplasmic staining of varying intensity was observed for GST alpha, theta, and pi in normal and tumorous breast tissue in 100% of the samples. In …
The Effect Of Interaction Of Rauwolfia Vomitoria Root Bark Extract With Vitamin E On Rats’ Liver Enzymes, Monday I. Akpanabiatu, Friday E. Uboh, Theresa B. Ekanem, Imeh Ben Umoh, Eyong Ubana Eyong, Sylvanus O. Ukafia
The Effect Of Interaction Of Rauwolfia Vomitoria Root Bark Extract With Vitamin E On Rats’ Liver Enzymes, Monday I. Akpanabiatu, Friday E. Uboh, Theresa B. Ekanem, Imeh Ben Umoh, Eyong Ubana Eyong, Sylvanus O. Ukafia
Turkish Journal of Biology
In our previous paper we demonstrated the influence of Rauwolfia vomitoria root bark extract on cardiac enzymes of normal Wistar rats and the effectiveness of this root bark as a source of antihypertensive agent, as determined by the marker enzymes, would be a useful index for the toxicity of this plant in clinical application. In this paper we present the results of the effect of Rauwolfia vomitoria root bark extract and its interaction with vitamin E on the liver function enzymes, such as alkaline phosphatase (ALP), alanine amino transferase (ALT), aspartate amino transferase (AST), gamma glutamyl transferase (\gamma-GT), and the …
Production And Characterization Of Multifunctional Endoxylanase By Bacillus Sp. X13, Ashabil Aygan, Burhan Arikan
Production And Characterization Of Multifunctional Endoxylanase By Bacillus Sp. X13, Ashabil Aygan, Burhan Arikan
Turkish Journal of Biology
A multifunctional endoxylanase producing Bacillus sp. was isolated from soil. Enzyme synthesis occurred at temperatures between 20 °C and 60 °C with an optimum 37 °C. Analysis of the enzyme by SDS-PAGE revealed 4 active enzyme bands, which were estimated to be 66.5 kDa, 80.6 kDa, 95.5 kDa, and 108.4 kDa. The enzyme has a broad temperature range, between 20 and 90 °C, with an optimum at 40 °C; and maximum activity was at pH 6.0. The enzyme showed a gradual decrease in the remaining activity as the pre-incubation temperature increase. Thermostability was not also increased in the presence of …
Comparative Susceptibilities Of Six Insect Cell Lines To Infection By Malacosoma Neustria Nucleopolyhedrovirus (Manenpv), İsmai̇l Demi̇r, Nurten Gürel, Remzi̇ye Nalçacioğlu, Zi̇hni̇ Demi̇rbağ
Comparative Susceptibilities Of Six Insect Cell Lines To Infection By Malacosoma Neustria Nucleopolyhedrovirus (Manenpv), İsmai̇l Demi̇r, Nurten Gürel, Remzi̇ye Nalçacioğlu, Zi̇hni̇ Demi̇rbağ
Turkish Journal of Biology
In this study, 6 lepidopteran cell lines derived from Trichoplusia ni (Tn5), Lymantria dispar (LdElta), Bombyx mori (Bm-5), Spodoptera frugiperda (Sf21), Spodoptera exigua (Se-1), and Choristoneura fumiferana (Cf-124T) were investigated for susceptibility to Malacosoma neustria nucleopolyhedrovirus (ManeNPV) isolated in Turkey. Infection of Malacosoma disstria (Md203) cell line by ManeNPV was used as a control. In ManeNPV-Md203 infection, polyhedral inclusion bodies (PIBs) were detected at 36 h p.i. and observed in all infected cells by 120 h p.i., and the infectious virus titer increased 10^3-fold. At 24 h p.i., the efficient replication of viral DNA was detected. In this study, we …
Eicosanoids Act In Nodulation Reactions To Bacteria Serratia Marcescensin Hemipteran Pest, Eurygaster Integriceps, Hasan Tunaz
Eicosanoids Act In Nodulation Reactions To Bacteria Serratia Marcescensin Hemipteran Pest, Eurygaster Integriceps, Hasan Tunaz
Turkish Journal of Biology
In insects, nodulation is the first step in cellular defense reactions to bacterial, fungal, and some viral infections. The hypothesis was posed that the hemipteran pest E. integriceps produces melantoic nodulation reactions to bacterial challenge and that eicosanoids mediate these reactions. Treating the adult of E. integriceps with Serratia marcescens induced nodulation reactions in a challenge dose-dependent manner. Injecting the adult E. integriceps with eicosanoid biosynthesis inhibitors, immediately before intrahemocoelic injections of the bacterium Serratia marcescens, sharply reduced the nodulation response to bacterial challenges. Separate treatments with specific inhibitors including dexamethasone (a phospholipase A_2 inhibitor), indomethacin, naproxen, ibuprofen, piroxicam (cyclooxygenase …
Multielement Determination In Fruit, Soaps And Coffee Of Pistacia Terebinthus L. By Icp-Oes, Mehmet Sayim Karacan, Fatma Çağran
Multielement Determination In Fruit, Soaps And Coffee Of Pistacia Terebinthus L. By Icp-Oes, Mehmet Sayim Karacan, Fatma Çağran
Turkish Journal of Biology
Multielement analyses were carried out on whole fruit, soaps, gummy extract, and fresh infusions of Pistacia terebinthus using the ICP OES technique. Digestion processes were optimized in a microwave oven. Qualitatively, the elements Al, As, B, Ba, Bi, Ca, Cd, Co, Cr, Cu, Fe, Ge, Hg, In, K, La, Li, Mg, Mn, Mo, Na, Ni, P, Pb, Pd, Sb, Sc, Se, Si, Sn, Sr, Te, Ti, V, W, and Zn were found in the fresh fruit. Al, Cd, and Pb levels in the infusions of gummy extract exceeded the upper limits specified by the Turkish Food Codex and filtration was …
Plant Regeneration From Callus Culture Of Clematis Gouriana Roxb. – A Rare Medicinal Plant, Hanumanaika Raja Naika, Venkatarangaiah Krishna
Plant Regeneration From Callus Culture Of Clematis Gouriana Roxb. – A Rare Medicinal Plant, Hanumanaika Raja Naika, Venkatarangaiah Krishna
Turkish Journal of Biology
An in vitro regeneration protocol through stem callus culture has been standardized for the medicinal climber Clematis gouriana. The explant induced callus on MS-medium supplemented with 0.5 to 1.5 mg l^{-1} BAP and 0.1 to 0.5 mg l^{-1} NAA. The optimized callus induction occurred at the concentration of 1.0 mg l^{-1} BAP and 0.3 mg l^{-1} NAA. After initiation of callus, it was immediately transferred to MS medium containing 4.0 mg l^{-1} FAP and 0.5 mg l^{-1} indole-3-butyric acid (IBA). Upon longer incubation for about 2-6 weeks on the same culture medium initiation of shoot buds from the callus mass …
Mutagenesis Of The Tal Gene-Encoding Transaldolase In The Cyanobacterium, Anabaena Sp. Pcc7120, Haydar Karakaya, Nicholas H. Mann
Mutagenesis Of The Tal Gene-Encoding Transaldolase In The Cyanobacterium, Anabaena Sp. Pcc7120, Haydar Karakaya, Nicholas H. Mann
Turkish Journal of Biology
The transaldolase gene (tal) of Anabaena sp. PCC7120 was interrupted by the insertion of the interposon W. Transaldolase assays showed that the tal mutant strain possessed the same activity as the wild-type, indicating that the second copy of the gene complements the enzyme activity. Being coded by a gene (zwf) downstream of tal and probably in the same operon, glucose-6-phosphate dehydrogenase (G6PDH) activity was also analysed. Only 34% of wild-type G6PDH activity was retained in the tal mutant strain. This may have due to the polar affect of tal mutation on the transcription of the zwf gene. Growth of the …
Effect Of Three Orobanche Spp. Extracts On Some Local Phytopathogens, Agrobacterium And Erwinia, Ismail M. Saadoun, Khalid M. Hameed, Fouad Al-Momani, Qotaiba Ababneh
Effect Of Three Orobanche Spp. Extracts On Some Local Phytopathogens, Agrobacterium And Erwinia, Ismail M. Saadoun, Khalid M. Hameed, Fouad Al-Momani, Qotaiba Ababneh
Turkish Journal of Biology
Tissues of the spikes of Orobanche spp. contain phenols and mannitol pathways, and it seems that it is very resistant, or may be immune, to bacterial infection. Therefore extracts of 3 Orobanche species, O. cernua, O. crenata, and O. egyptiaca, were evaluated for their antibacterial activity against local isolates of crown gall (Agrobacterium) and soft rot (Erwinia) phytopathogens. Extract of O. cernua showed the highest activity against both pathogens with clear inhibition zones of 8-24 mm and 12-16 mm in diameters, respectively. When the inhibitory action of 100 mg/ml concentration of the 3 Orobanche species extract on local isolates of …
Androgenesis In Anther Culture Of Lithuanian Spring Barley (Hordeum Vulgare L.) And Potato (Solanum Tuberosum L.) Cultivars, Rita Asakaviciute
Androgenesis In Anther Culture Of Lithuanian Spring Barley (Hordeum Vulgare L.) And Potato (Solanum Tuberosum L.) Cultivars, Rita Asakaviciute
Turkish Journal of Biology
An anther culture method was used for the production of doubled haploids (DHs) in Lithuanian barley and potato cultivars that were directly regenerated from embryoids (Caredda´s method) were applied to determine androgenic potential according to the green regenerant yield and other morphogenetic factors. Green DH regenerants were obtained in 3 Lithuanian spring barley cultivars (´Aidas´, ´Alsa´, and ´Auksiniai´) out of 10 studied. The highest rate of embryoid formation was determined in cv. ´Auksiniai 3´, representing 580.0 embryoids per 100 responding anthers. The potato cultivar ´Nida´ was superior in terms of the rate of responding anthers (17.4%). The highest rate of …
In Vitro Antimicrobial Activity Of Salvadora Persica L. Extracts Against Some Isolated Oral Pathogens In Iraq, Firas A. Al-Bayati, Khudir D. Sulaiman
In Vitro Antimicrobial Activity Of Salvadora Persica L. Extracts Against Some Isolated Oral Pathogens In Iraq, Firas A. Al-Bayati, Khudir D. Sulaiman
Turkish Journal of Biology
Aqueous and methanol extracts of Salvadora persica L., a plant used in Iraq for oral hygiene, was investigated for its antimicrobial activities against 7 isolated oral pathogens: Staphylococcus aureus, Streptococcus mutans, Streptococcus faecalis, Streptococcus pyogenis, Lactobacillus acidophilus, Pseudomonas aeruginosa, and Candida albicans using disc diffusion and micro-well dilution assays. According to both antimicrobial assays the aqueous extract inhibited all isolated microorganisms, especially the Streptococcus species, and was more efficient than the methanol extract, which was resisted by Lacto. acidophilus and Ps. aeruginosa. The strongest antibacterial activity was observed using the aqueous extract against Strep. faecalis (zone of inhibition: 22.3 mm; …
Antipyretic Activity Of Peperomia Pellucida Leaves In Rabbit, Alam Khan, Moizur Rahman, Shariful Islam
Antipyretic Activity Of Peperomia Pellucida Leaves In Rabbit, Alam Khan, Moizur Rahman, Shariful Islam
Turkish Journal of Biology
Antipyretic effects of petroleum ether and ethyl acetate soluble fractions of ethanol extract of the leaves of Peperomia pellucida (Linn.) HBK (Fam. Piperaceae) were investigated. Intraperitoneal administration of boiled milk at a dose of 0.5 ml/kg body weight in albino rabbit leads to pyrexia. Intraperitoneal (i.p.) administration of petroleum ether and ethyl acetate soluble fractions of ethanol extract of the leaves of P. pellucida at a dose of 80 mg/kg body weight significantly reduced the elevated body temperature of rabbit. This antipyretic effect has been compared with antipyretic effect of standard aspirin and the solvent used.
Dispersal Ability And Parasitization Performance Of Egg Parasitoid Trichogramma Evanescens Westwood (Hymenoptera: Trichogrammatidae) In Field And Storage Conditions, Abdurrahman Ayvaz, Eyüp Karasu, Sali̇h Karabörklü, Semi̇h Yilmaz
Dispersal Ability And Parasitization Performance Of Egg Parasitoid Trichogramma Evanescens Westwood (Hymenoptera: Trichogrammatidae) In Field And Storage Conditions, Abdurrahman Ayvaz, Eyüp Karasu, Sali̇h Karabörklü, Semi̇h Yilmaz
Turkish Journal of Biology
In this study we evaluated the dispersal ability of Trichogramma evanescens in field and storage conditions. In field studies we tested the effects of plant structure on the dispersal ability of T. evanescens from release points. Both in a corn field and on grapevines the level of parasitism was negatively correlated with distance when the host eggs were located away from the release point. The parasitization rate on grapevines and corn plants at the release point was greater than that away from the release point. Parasitization rates were significantly higher at the highest wasp density in cages. When 1000 wasps …
Gamma Ray- And Ems-Induced Bold-Seeded High-Yielding Mutants In Chickpea (Cicer Arietinum L.), Aijaz A. Wani, Mohammad Anis
Gamma Ray- And Ems-Induced Bold-Seeded High-Yielding Mutants In Chickpea (Cicer Arietinum L.), Aijaz A. Wani, Mohammad Anis
Turkish Journal of Biology
Three bold-seeded high-yielding mutants were isolated from the M_2 progeny of chickpea var. Pusa-212, viz. Pusa-212 A (200 Gy), Pusa-212 C (400 Gy), and Pusa-212 F (300 Gy + 0.2% EMS). Data on various quantitative traits, such as plant height, number of branches per plant, number of pods per plant, number of seeds per pod, 100-seed weight (g), seed yield (g) per plant, and protein content (%), were recorded for all 3 mutants in the M3 generation. The mutants were morphologically quite distinct, as compared to the control and to each other. The most notable change was in seed size …
The Nickel Hyperaccumulating Plants Of The Serpentines Of Turkey And Adjacent Areas: A Review With New Data, Roger D. Reeves, Nezaket Adigüzel
The Nickel Hyperaccumulating Plants Of The Serpentines Of Turkey And Adjacent Areas: A Review With New Data, Roger D. Reeves, Nezaket Adigüzel
Turkish Journal of Biology
Botanical exploration of serpentine soils in Turkey and neighbouring countries has shown that the region includes at least 59 taxa capable of hyperaccumulating nickel (to >0.1% of plant dry weight). These hyperaccumulators belong to the Brassicaceae (Aethionema R.Br., Alyssum L., Bornmuellera Hausskn., Pseudosempervivum (Boiss.) Grossh. (Cochlearia L.), and Thlaspi L. s.l.) and the Asteraceae (Centaurea L.). We review present knowledge of the hyperaccumulators and provide additional data recently obtained. Some species are serpentine-endemic and invariably Ni hyperaccumulating; others show more complex distribution and Ni-accumulating behaviour. Many are good subjects for biochemical studies on the Ni-accumulation and sequestering processes. There is …
Bioactivities Of The Various Extracts And Essential Oils Of Salvia Limbata C.A.Mey. And Salvia Sclarea L., Hati̇ce Öğütçü, Atalay Sökmen, Münevver Sökmen, Moschos Polissiou, Julia Serkedjieva, Di̇mi̇tra Daferera, Fi̇kretti̇n Şahi̇n, Özlem Bariş, Medi̇ne Güllüce
Bioactivities Of The Various Extracts And Essential Oils Of Salvia Limbata C.A.Mey. And Salvia Sclarea L., Hati̇ce Öğütçü, Atalay Sökmen, Münevver Sökmen, Moschos Polissiou, Julia Serkedjieva, Di̇mi̇tra Daferera, Fi̇kretti̇n Şahi̇n, Özlem Bariş, Medi̇ne Güllüce
Turkish Journal of Biology
The present study evaluated the in vitro antimicrobial, antioxidant, and antiviral activities of the essential oil and various extracts of Salvia limbata C.A.Mey. and Salvia sclarea L., as well as the content of its essential oil. The activities of essential oils were tested against a wide range of human-, plant-, and food-borne microorganisms. A total of 55 microbial organisms belonging to 35 bacteria and 19 fungi and yeast species were tested using disk diffusion, micro dilution, and micro-well dilution. The essential oils were found to possess antimicrobial activity against some of the tested fungi, while no activity was observed against …
Evolutionary Relationship And Divergence Based On Sds-Page Of Elaeagnus Umbellata (Thunb.) Populations, A Multipurpose Plant From The Himalayas, Syed Dilnawaz Ahmad, Syed Mubashar Sabir, Halimi Mohammed Saud, Yousaf Salihuddin
Evolutionary Relationship And Divergence Based On Sds-Page Of Elaeagnus Umbellata (Thunb.) Populations, A Multipurpose Plant From The Himalayas, Syed Dilnawaz Ahmad, Syed Mubashar Sabir, Halimi Mohammed Saud, Yousaf Salihuddin
Turkish Journal of Biology
Elaeagnus umbellata (Thunb.), commonly known as autumn olive, belongs to the family Elaeagnaceae and is native to the Himalayan regions of Pakistan, China, and India and is also found in Korea and Japan. The seeds of 8 ecotypes from Azad Jammu and Kashmir, Pakistan, were analyzed at UPM Malaysia for comparisons of their relationship and evolution based on SDS-PAGE of total seed proteins. The results indicated that each autumn olive population can be distinguished by their own specific protein bands with reference to a molecular weight marker included in the gel. The dendrogram based on computer package analysis indicated that …
Impact Of Long-Term Application Of Treated Tannery Effluents On The Emergence Of Resistance Traits In Rhizobium Sp. Isolated From Trifolium Alexandrinum, Mohd. Musheer Altaf, Farhana Masood, Abdul Malik
Impact Of Long-Term Application Of Treated Tannery Effluents On The Emergence Of Resistance Traits In Rhizobium Sp. Isolated From Trifolium Alexandrinum, Mohd. Musheer Altaf, Farhana Masood, Abdul Malik
Turkish Journal of Biology
A total of 35 Rhizobium sp. were isolated from the root nodules of Trifolium alexandrinum (Egyptian clover) irrigated with treated tannery effluents and characterised on the basis of morphological, cultural and biochemical characteristics. Rhizospheric soils and plant parts were also analysed for metal concentrations by atomic absorption spectrophotometry. The test soil samples were contaminated with a high level of chromium and also with other heavy metals, i.e. Ni, Zn, Cu, and Cd. The heavy metal analysis of Trifolium alexandrinum plant parts revealed different accumulation of these metals in different plant parts, such as root, stem, and leaf. Trifolium alexandrinum roots …
Effect Of Modes Of Application Of 28-Homobrassinolide On Mung Bean, Qazi Fariduddin, Syed Aiman Hasan, Barket Ali, Shamsul Hayat, Aqil Ahmad
Effect Of Modes Of Application Of 28-Homobrassinolide On Mung Bean, Qazi Fariduddin, Syed Aiman Hasan, Barket Ali, Shamsul Hayat, Aqil Ahmad
Turkish Journal of Biology
An experiment was conducted to assess the response of mung bean (Vigna radiata L. Wilczek) to 28-homobrassinolide (HBL) supplied to the seeds (1.0 µM) and/or to the foliage (0.01 µM) of the plants. Samples of the treated plant materials were assessed 30 and 50 days after sowing (DAS). It was observed that the activities of carbonic anhydrase (CA) and nitrate reductase (NR), leaf chlorophyll content (Chl), net photosynthetic rate (P_N), stomatal conductance (gs), carboxylation efficiency (CE), dry mass (DM), pod number, and seed yield at harvest increased significantly over the control, irrespective of the mode of application. However, the plants …
Effects Of Drought Stress On Soluble Proteins In Two Maize Varieties, Nayer Mohammadkhani, Reza Heidari
Effects Of Drought Stress On Soluble Proteins In Two Maize Varieties, Nayer Mohammadkhani, Reza Heidari
Turkish Journal of Biology
Drought stress was generated by PEG 6000. Water potentials were: zero as the control, and -0.15, -0.49, -1.03, and -1.76 MPa as treatments. After 24-h treatment the total soluble protein content of 2 maize (Zea mays L.) cultivars (704 and 301) was determined and SDS-PAGE gel electrophoresis in the first dimension was performed. By decreasing water potentials, total soluble protein content first increased, and then decreased in the roots and leaves of both varieties. The decrease in total soluble protein content in the roots of both varieties was equal, but in the leaves of cv. 301 it was greater than …
Antioxidant Activities Of Iranian Corn Silk, Mohammad Ali Ebrahimzadeh, Fereshteh Pourmorad, Samira Hafezi
Antioxidant Activities Of Iranian Corn Silk, Mohammad Ali Ebrahimzadeh, Fereshteh Pourmorad, Samira Hafezi
Turkish Journal of Biology
Traditionally corn silk (CS) has been used as diuretic, antilithiasic, uricosuric, and antiseptic. It is used for the treatment of edema as well as for cystitis, gout, kidney stones, nephritis, and prostatitis. In the present study, the antioxidant properties of ethanol-water extract from CS were estimated by different methods. Also phenol and flavonoid content of the extract were measured by Folin Ciocalteu and AlCl_3 assays. CS extract contained a significant amount of phenol and flavonoids. The percentage of DPPH radical scavenged by CS extract was 92.6 at a concentration of 1.6 mg ml^{-1}. IC_{50} of the extract and the standard …
Antioxidant Activity Of Some Common Plants, Nooman A. Khalaf, Ashok K. Shakya, Atif Al-Othman, Zaha El-Agbar, Husni Farah
Antioxidant Activity Of Some Common Plants, Nooman A. Khalaf, Ashok K. Shakya, Atif Al-Othman, Zaha El-Agbar, Husni Farah
Turkish Journal of Biology
The methanolic crude extracts of some commonly used medicinal plants were screened for their free radical scavenging properties using ascorbic acid as standard antioxidant. Free radical scavenging activity was evaluated using 1,1-diphenyl-2-picryl-hydrazyl (DPPH) free radical. The overall antioxidant activity of green tea (Camellia sinensis Linn.) was the strongest, followed in descending order by black tea (Camellia sinensis Linn.), Eugenia caryophyllus (Spreng.) Bullock and Harrison, Piper cubeba Linn., Zingiber officinale Roscoe and Piper nigrum Linn. Trigonella foenum graecum Linn. and Elettaria cardamomum (Linn.) Maton showed weak free radical scavenging activity with the DPPH method. All the methanolic extracts exhibited antioxidant activity …
Antibacterial Activities Of Aqueous And Alcoholic Extracts Of 34 Indian Medicinal Plants Against Some Staphylococcus Species, Jigna Parekh, Sumitra Chanda
Antibacterial Activities Of Aqueous And Alcoholic Extracts Of 34 Indian Medicinal Plants Against Some Staphylococcus Species, Jigna Parekh, Sumitra Chanda
Turkish Journal of Biology
Thirty-four Indian medicinal plants belonging to 28 different families were screened for potential antibacterial activity against 3 Staphylococcus species, namely Staphylococcus aureus, Staphylococcus epidermidis, and Staphylococcus subflava. Antibacterial activity of aqueous and alcoholic extracts was performed by agar disc diffusion method and agar well diffusion method. The alcoholic extracts were more active than aqueous extracts for all the plants studied. The most susceptible bacterium was S. aureus. The methanol extract of Woodfordia fruticosa showed the best antibacterial activity. The in vitro susceptibility testing of the studied staphylococcus strains was done against standard antibiotics.
Lead-Induced Cytotoxicity And Mutagenicity In Grass Pea, Girjesh Kumar, Ritambhara Tripathi
Lead-Induced Cytotoxicity And Mutagenicity In Grass Pea, Girjesh Kumar, Ritambhara Tripathi
Turkish Journal of Biology
Chromosomal variation is an important tool in genetic analysis. The objectives of the present study were to determine the mutagenic potential of lead (Pb) on the meiotic cells of grass pea (Lathyrus sativus) and to determine the maximum concentration of lead nitrate that induces maximum genetic variability in grass pea. The different concentrations of lead nitrate used were 25, 50, 100, 200, and 300 ppm. The percentage of abnormalities increased with the lead nitrate concentration. Different types of chromosomal abnormalities were observed, such as condensed bivalents, secondary association, laggards, bridges, cytomixis, stickiness, etc.
Soil Salinity Alters Growth, Chlorophyll Content, And Secondary Metabolite Accumulation In Catharanthus Roseus, Cheruth Abdul Jaleel, Beemarao Sankar, Ramalingam Sridharan, Rajaram Panneerselvam
Soil Salinity Alters Growth, Chlorophyll Content, And Secondary Metabolite Accumulation In Catharanthus Roseus, Cheruth Abdul Jaleel, Beemarao Sankar, Ramalingam Sridharan, Rajaram Panneerselvam
Turkish Journal of Biology
The effect of salinity on growth, photosynthetic pigment content, and alkaloid secondary metabolite accumulation were studied in an economically important medicinal plant, Catharanthus roseus (L.) G. Don., under pot culture conditions. Plants were treated with different concentrations of NaCl, (e.g. 50 and 100 mM) 30, 45, 60, and 75 days after sowing (DAS). The plants were uprooted randomly 90 DAS to analyse growth, and chlorophyll and alkaloid content. Salinity affected all the morphological parameters and decreased growth performance. At low salinity regimes, a slight decrease was noted in chlorophyll a and b, and total chlorophyll content, but under high salinity …
Cropping Effects On Microbial Population And Nitrogenase Activity In Saline Arid Soil, Dilfuza Egamberdieva, Zulfiya Kucharova
Cropping Effects On Microbial Population And Nitrogenase Activity In Saline Arid Soil, Dilfuza Egamberdieva, Zulfiya Kucharova
Turkish Journal of Biology
Soil salinization is a major problem in irrigated agriculture. A field study was conducted in the Sariosiyo district in the Surkhandarya region of southeast Uzbekistan to evaluate soil nitrogenase activity and nitrogen-fixing bacteria populations in saline serozem soils under wheat, maize, and alfalfa, as well as from adjacent fallow land. Composite soil samples were randomly collected from depths of 0-10, 10-20, and 20-30 cm in autumn, winter, spring, and summer, which were then 2-mm sieved and subjected to selected microbial population analysis and enzymatic studies. The results showed that alfalfa contributed both to high nitrogenase activity and to a large …
Improvement Of The Nutritional Value Of Soybean [Glycine Max (L) Merr.] Seed With Alteration In Protein Subunits Of Glycinin (11s Globulin) And \Beta-Conglycinin (7s Globulin), Behzad Kaviani, Ardashir Kharabian
Improvement Of The Nutritional Value Of Soybean [Glycine Max (L) Merr.] Seed With Alteration In Protein Subunits Of Glycinin (11s Globulin) And \Beta-Conglycinin (7s Globulin), Behzad Kaviani, Ardashir Kharabian
Turkish Journal of Biology
Protein quality in soybean seeds is strongly influenced by nutritional conditions. Glycinin (11S globulin) and \beta-conglycinin (7S globulin) are the 2 main proteins in soybean seeds. Protein quality of glycinin (11S) is higher than that of \beta-conglycinin (7S), due to the presence of higher amounts of s-containing amino acids (methionine and cysteine) in glycinin than \beta-conglycinin. Of the amino acids in glycinin, 3%-4.5% are methionine and cysteine but these important amino acids are not found in \beta-conglycinin (especially \beta-subunit). Pot studies were conducted with soybean [Glycine max (L) Merr.] grown under various levels of KCl and CaHPO4 and the effects …
Evaluation Of Antioxidant And Antimicrobial Activity Of Seaweed (Sargassum Sp.) Extract: A Study On Inhibition Of Glutathione-S-Transferase Activity, Jayanta Kumar Patra, Sakti Kanta Rath, Karmabeer Jena, Vijaya Kumar Rathod, Hrudayanath Thatoi
Evaluation Of Antioxidant And Antimicrobial Activity Of Seaweed (Sargassum Sp.) Extract: A Study On Inhibition Of Glutathione-S-Transferase Activity, Jayanta Kumar Patra, Sakti Kanta Rath, Karmabeer Jena, Vijaya Kumar Rathod, Hrudayanath Thatoi
Turkish Journal of Biology
In the present study, the free radical scavenging potentials (DPPH radical and hydroxyl radical), inhibition of lipid peroxidation, and glutathione-S-transferase and antimicrobial properties of Sargassum sp. extract were investigated. The tested extract exhibited a dose-dependent free radical scavenging action against DPPH radical and hydroxyl radical and antimicrobial activity. In addition, inhibition of lipid peroxidation and glutathione-S-transferase activities were also observed. The overall results have established that this seaweed could be used against several diseases and, in the food processing industry, to preserve foods.
Sensitivity Of Kinetoplastids To Aminoglycoside: Correlation With The 3’ Region Of The Small Subunit Rrna Gene, A. S. Hamad Elgazwy, Masoom M. Yasinzai
Sensitivity Of Kinetoplastids To Aminoglycoside: Correlation With The 3’ Region Of The Small Subunit Rrna Gene, A. S. Hamad Elgazwy, Masoom M. Yasinzai
Turkish Journal of Biology
In vitro culture systems were used to assess the growth inhibition of kinetoplastids by a variety of aminoglycosides. The parasites were allowed to grow to the stationary phase in the presence of varying concentrations of the drugs. The IC-50 for every drug was calculated by comparison with the control. The sensitivity of various leishmanial strains to these drugs was in the order of: G418 > hygromycin > paromomycin > neomycin; however, under our assay conditions gentamycin and kanamycin were non-leishmanicidal. The effects of the drugs on the intracellular form of the parasite in the macrophage cell line were also tested. Other kinetoplastids, such …