July 2012
Determination of genotype differences through restriction endonuclease in Camels (Camelus dromedarius)
Tyrosinase gene or C locus has long been implicated in the coat colour determination.This gene a copper-containing enzyme located on chromosome 11q14.3 is expressed in melanocytes and controls the major steps in pigment production. In camel, C locus a restriction site provoked by the T variant of the mutation was used in a special restriction fragment length polymorphism analysis (PCR-RFLP) for genotyping of...
July 2012
Antioxidant capacity, nutritional and phytochemical content of peanut (Arachis hypogaea L.) shells and roots
This study evaluated antioxidant capacity, nutritional and phytochemical content of shells and roots of peanut (Arachis Hypogaea L.) for potential utilizations. Total dietary fiber, protein, ash and alkaloid per 100 g dry weight samples ranged from 58.8 to 78.2 g, 5.8 to 6.1 g, 6.6 to 21.7 g and 5 to 23.8 g, respectively. While total phenolic, total saponins and phytic acid per 100 g dry weight samples...
July 2012
Liming increases alfalfa yield and crude protein content in an acidic silty loam soil
A three year field trial examined the effect of three hydrated lime (HL, Ca(OH)2) rates (0, 1.5 and 3 Mg HL ha-1) on yield and quality characteristics of alfalfa on an acid soil (pHwater 1:2.5 4.7) in Western Serbia. Lime was applied only once. Total dry mass yields of a new planting alfalfa (Medicago sativa L.) increased up to 6500% by the treatments of HL, compared with the untreated control. Lime...
July 2012
Evaluating spring wheat cultivars for drought tolerance through yield and physiological parameters at booting and anthesis
Progress in wheat yields under drought conditions is rather a difficult task to achieve. The experiment was conducted in factorial design with 16 spring wheat cultivars grown under two irrigation regimes, non-stress and water-stress imposed at boot and anthesis growth stages. Water-stress significantly influenced the physiological and yield traits in both the growth stages, yet the reductions in most traits were...
July 2012
Genetic diversity and molecular discrimination of wild tea plants from Yunnan Province based on inter-simple sequence repeats (ISSR) markers
To efficiently assess and discriminate wild tea germplasms, inter-simple sequence repeats (ISSR) were used to determine genetic relationships among 40 wild tea plants. A total of 275 bands were generated with 15 ISSR primers, of which 274 (99.6%) were polymorphic. The mean genetic similarity coefficient, the mean Nei’s gene diversity (h) and the mean Shannon’s information index (I) of tea cultivars were...
July 2012
Phytotoxic characterization of crude methanolic extract of Periploca aphylla
Periploca aphylla is traditionally used in the treatment of various ailments. Phytotoxic activity of crude methanolic extract of P. aphylla was tested on the germination of wheat seeds and on the growth of the germinated seedlings. In both the field and plate studies, the extract showed inhibitory effect on the germination of the growth of root and shoot of the seedlings. The inhibition was found to be...
July 2012
Outcrossing rate in olive assessed by microsatellite and inter simple sequence repeat (ISSR) markers
Olive is known to be an allogamous species. The aim of this study was to estimate the magnitude of cross-pollination rate using microsatellite simple sequence repeats (SSR) and inter simple sequence repeats (ISSR) molecular markers in olive genotypes. The DNA from maternal plants and 23 progenies of two different accessions, Ascolano USA and MGS GRAP541 were extracted and screened with two microsatellite and ten ISSR...
July 2012
Effects of plant growth regulators and photoperiod on in vitro microtuberization of potato (Solanum tuberosum L.)
In vitro microtuber production of potato (Solanum tuberosum L.) cvs. Sante and Savalan were studied on solid Murashige and Skoog (MS) basal medium applying different plant growth regulators 2,4-dichlorophenoxyacetic acid and benzylamino purine (2,4-D and BAP) and photoperiods. Cultures were exposed to 16, 8 and 16 h+utter darkness photoperiodic regimes. The experimental design,...
July 2012
Effect of 5-aminolevulinic acid on yield and quality of lettuce in sunlit greenhouse
The role of 5-aminolevulinic acid (ALA) as a precursor of chlorophyll and heme is well documented. Low concentration of exogenous ALA has been found to regulate plant growth and increase crop yield, but there is little information on how ALA influences the yield and quality of lettuce in sunlit greenhouse. Here, we report the effects of ALA on photosynthetic rate, yield and quality of lettuce in sunlit...
July 2012
Screening and identification of cellulase producing yeast-like microorganisms from Brazilian biomes
The main goals of the present study included the screening and identification of cellulase producing wild yeasts, isolated from samples collected from different Brazilian biomes. They were selected according to their capabilities of degrading carboxymethyl cellulose (CMC) and micro-crystalline cellulose (SERVACEL®), as single carbon sources in solid medium. After the step of solid medium selection, yeast cells were...
July 2012
Karyotype and nucleic acid content in Zantedeschia aethiopica Spr. and Zantedeschia elliottiana Engl.
Analysis of karyotype, nucleic deoxyribonucleic acid (DNA) content and sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) were performed inZantedeschia aethiopica and Zantedeschia elliottiana. Mitotic metaphase in both species showed 2n=32. The chromosomes of both species were quite similar with medium length ranging from 1.55 ± 0.04 to 3.85 ± 0.12 µM in Z....
July 2012
Biochemical properties of oxidases of Yali pear
The biochemical properties of polyphenol oxidase (PPO), peroxidase (POD) andascorbate peroxidase (APX) from Yali pear were investigated. The optimum pH and temperature of three enzymes was 5.6, 4.0, 7.0 and 20, 40, 50°C, respectively. Enzyme kinetics results showed that the Michaelis constant (Km) and maximum velocity (Vmax) of PPO for catechol were 0.22 M and 1111 U/ml/min. The Km and Vmax values of POD for...
July 2012
Evaluating the effect of some botanical insecticides on the citrus mealybug Planococcus citri (Risso) (Hemiptera: Pseudococcidae)
Planococcus citri (Risso) (Homoptera: Pseudococcidae), is one of the key pests of citrus. The use of chemical pesticides for a long time can cause many problems such as pesticide resistance, as well as having an adverse effect on the environment. The use of chemical pesticides needs to be replaced with non-chemical control methods. The effects of tondexir (pepper extract) and palizin (eucalyptus extract)...
July 2012
Are specialized servers better at predicting protein structures than stand alone software?
This research study answers the question that technology is the best for predicting protein structures. Stand-alone software only depend on protein structure prediction algorithms, while web servers consult a number of other sources such as meta servers and protein data banks to produce a protein structure achieved through consensus. Key words: Protein structure prediction, web servers, meta...
July 2012
Cultivation of Pleurotus mushrooms in substrates obtained by short composting and steam pasteurization
This paper presents results of two experiments for cultivation of Pleurotus ostreatus,Pleurotus pulmonarius and Pleurotus eryngii grown with different formulations of grass and straw mixtures derived from agro-industrial residues. Cultivation was prepared through a number of approaches, such as short composting/pasteurization and axenic culture. In the first experiment, P. pulmonarius was...
July 2012
Aqueous ethanolic extract of Cochlospermum planchonii rhizome enhances spermatogenesis in male albino rats
Cochlospermum planchonii has numerous therapeutic benefits and is widely used in folklore medicine of many African countries. This study was designed to investigate the effects of aqueous ethanolic extract of Cochlospermum planchonii root on sperm characteristics of albino rats. Animals were assigned into four groups comprising a control, which received only distilled water and treatment groups at the...
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