October 2013
Genetic analysis of baculovirus resistance in lepidopteran model insect Bombyx mori L.
In order to clarify the resistant mechanism of BmNPV in silkworm, and from negative to prove agricultural pest inheritance of virus resistance, in this study, we used the highly resistant strain NB and susceptible strain 306 as the material through the method of classical genetics experiment, and proved that the baculovirus resistance in silkworm is controlled by a pair of autosomal dominant major gene. At...
October 2013
The biodiversity and stability of alpine meadow plant communities in relation to altitude gradient in three headwater resource regions
Kobresia pygmaea meadow community diversities in relation to altitude gradients (4200, 4300, 4400, 4450) on free grazing grassland was studied in the range of Chenduo county, Yushu prefecture, Qinghai province. Species richness and diversity index of vegetations in the four altitudes were comparatively analyzed. The results showed that the shape of species richness responsive curves to altitude gradient...
October 2012
Assessment of spatio-temporal variations in surface water quality of Ghaggar River (North-Western, India) utilized for drinking and agricultural purposes
In the present study, statistical analyses (descriptive and principal component analysis) were applied to Ghaggar River surface water data set monitored in the month of June 2006 and 2007 to check spatio-temporal variations in water quality. From these, two summer observations were taken into consideration because in summer season, high concentrations are observed for different water constituents. The various...
October 2012
Molecular phylogeny of recurrent road killed butterflies in Nilgiri biosphere reserve, India, using CO1 gene marker
We examined the spatial patterns and factors influencing butterflies aggregations of road-kill at Mudumalai Tiger Reserve, Mukuruthi National Park and Avalanche Forest region in NBR (Nilgiri Biosphere Reserve) Southern India. We surveyed roads varying in high traffic volume, configuration and adjacent landscape attributes for analyzing road-kills between January 2010 and December 2010. The aim of the present...
October 2012
Optimization of lipid production in the oleaginous bacterium Rhodococcus erythropolis growing on glycerol as the sole carbon source
The growth of an oleaginous bacteria strain Rhodococcus erythropolis on glycerol was studied. Lipid accumulation was influenced by the glycerol concentration, nitrogen source, nitrogen concentration, pH medium, incubation time and aeration rate. Under the best optimized flask culture medium; 30 g/L glycerol plus 0.75 g/L urea, incubation temperature at 30°C, agitation rate of 150 rpm...
October 2012
Characterization of the Lactobacillus isolated from different curd samples
Lactic acid bacteria are commonly found in the fermented dairy products.Lactobacillus is a genus of lactic acid bacteria and described as heterogeneous group of regular, non-spore forming, gram-positive, rod shaped, non-motile bacteria and absence of catalase enzyme. The aim of this study was to isolate Lactobacillus from different curd samples. A total of 14 curd samples were collected from...
October 2012
Evaluation of conidia production and mycelial growth in solid culture media from native strains of entomopathogenic fungi isolated from citrus-growing areas of México
It is important to know the ability of native strains to carry out the process of sporulation and growth in different conditions and to determine their possible potential as biological control of pests of agricultural importance, mainly in citrus areas. The objective of this study was to evaluate five different solid culture media for the determination of the production of conidia and mycelial growth of...
October 2012
Influence of spice and wine based marinades on bovine Biceps femoris muscle tenderness
Fresh beef slices were marinated by immersion in marinades based on dry red wine, lime-tree honey, salt, spices and seasoning plants as thyme (Thymus vulgaris),marjoram (Majorana hortensis), garlic (Allium sativum) and horseradish (Armoracia rusticana). Control samples were prepared without marinating treatment but packed and stored in the same conditions as marinated samples. After marination,...
October 2012
Spices and food condiments in Niger-Delta region of Nigeria
Spices and food condiments studies here have both local and international values and recognition. Forty seven crop species commonly used as spices and condiments in the rainforest ecosystem of the Niger delta region of Nigeria were evaluated. The study revealed that leafy vegetables are richer in crude protein (CP) than the spices and bulb. However, all these crops are rich in minerals, relatively low in...
October 2012
Ultrasound-assisted degradation of a new bacterial exopolysaccharide WL-26 from Sphingomonas sp.
Ultrasonic degradation of a new exopolysaccharide WL-26 from Sphingomonas sp. was made over the frequency range 200 to 1200 Hz and polymer concentrations of 3, 5, 10 and 20 g/L using high performance anion exchange pulsed-amperometric detection chromatography (HPAEC–PAD) and infrared spectroscopy. Sonication was more efficient with less concentrated polysaccharide solutions, high ultrasonic...
October 2012
Extraction and identification of the hepatoprotective bio-active components of the root of Actinidia deliciosa
The root of Actinidia deliciosa has been used as traditional drugs in China for a long time. This study therefore aimed at investigating the hepatoprotective bio-active components from the root of A. deliciosa comprehensively and accurately, thus promoting the exploitation and utilization of the whole resource of A. deliciosa. For the purpose of this study, the roots of A....
October 2012
Polymerase chain reaction (PCR) detection of mixed trypanosome infection and blood meal origin in field-captured tsetse flies from Zambia
The prevalence of animal African trypanosomes and source of blood meal in wild field captured tsetse fly was assessed by single polymerase chain reaction using paraflagellar rod protein A (PFRA), protein kinase (KIN) and serum resistance- associated (SRA) primers, respectively for Trypanozoon group species, universal trypanosome species and Trypanosoma brucei rhodesiense. DNA samples (250)...
October 2012
Detection of quorum sensing molecules from Vibrio harveyi and use of synthetic furanone to control V. harveyi during shrimp larviculture
This paper explores the extraction and detection processes of quorum sensing molecules such as N-aceyl homoserine lactone compounds (AHL) from marine Vibrio harveyi. The spent culture of V. harveyi was solvent partitioned for AHL, rotary evaporated and re-suspended in 50% acetonitrile then detected with reporter strain using Luminometer. Furanone was tested for antagonism against V....
October 2012
Assessment of non-genetic parameters of the racing performances of Arabian and Thoroughbred horses in Algeria
From 1995 to 2007, flat racing data was collected for Thoroughbred and Arabian horses in Algeria. Non-genetic factors affecting racing performances have been identified and quantified using linear models. Performances are represented through the earnings and the rankings. Three traits were used: two earnings traits [the logarithm of annual virtual earnings (LAEV) and the logarithm of...
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