July 2012
Drought adaptation of a terrestrial macroscopic cyanobacterium, Nostoc flagelliforme, in arid areas: A review
Nostoc flagelliforme is a terrestrial macroscopic cyanobacterium with a hair-like appearance that is distributed in arid and semi-arid areas. It exhibits remarkable tolerance to extremely acute or long-term dehydration stress. However, it cannot withstand prolonged hydration or water saturation. It appears that too little water limits its growth while too much water becomes a burden. This seemingly...
July 2012
Growth response and modeling the effects of Carum copticum essential oil, pH, inoculum level and temperature on Escherichia coli O157:H7
Enterohemorrhagic Escherichia coli O157:H7 (EHEC) is an important verotoxin producingE. coli (VTEC). It is associated with food and water borne infections. This study was designed to carefully examine the effects of four different factors on the growth of E. coliO157:H7 in the brain heart infusion broth. These factors included four concentrations ofCarum copticum (Zenyan in Persian)...
July 2012
Spatial distribution of arbuscular mycorrhiza and glomalin in the rhizosphere of Caragana korshinskii Kom. in the Otindag sandy land, China
To understand the ecological significance of arbuscular mycorrhizal (AM) associations in arid ecosystem, the spatial patterns of AM fungi, glomalin and soil enzymes were surveyed at four sites located in the Otindag sandy land, northern China. Soil samples in the rhizosphere of Caragana korshinskii Kom. were collected at 0-10, 10-20, 20-30, 30-40 and 40-50 cm depth in July 2009. The study showed...
July 2012
Efficacy of different iron, zinc and magnesium fertilizers on yield and yield components of barley
In order to study the effect of micro and macro nutrients on yield of barley, an experiment was conducted as randomized complete block design with three replications in research field of Zahedan, 2008. Use of micro nutrient elements were composed of: Iron sulfate(F1), zinc sulfate (F2), magnesium sulfate (F3) and control (F4) as sub plot in this experiment. Results showed that nutrient treatments...
July 2012
Seed position effect on grains micronutrient content of ten wheat genotypes
The characteristics of seeds obtained from nine varieties of wheat (Triticum aestivum) from different position were evaluated. A field experiment was set up in a farmer`s field at Coonalpyn, in 2010. Nine varieties of T. aestivum L. (BT-Schomburg, Excalibur, Genaro. Halberd, Janz, Machete, Molineux, Oxley and Trident) and one of Triticum durum (Yallaroi) were sown in a randomized...
July 2012
Effect of sowing date on fusarium head blight severity in some promising lines of wheat in Moghan, Iran
In order to examine the effects of sowing date of wheat cultivars and lines on fusarium head blight (Scab) (FHB), a study was carried out as a split-plot experiment based on a randomized complete block design with 3 replications. FHB is a serious problem in wheat fields of Northern provinces as well as Moghan, Iran. It seems that wheat spikes are sensitive to FHB in a short part of their growth period which...
July 2012
Humic acids affect the bulb production of onion cultivars
An experiment was conducted at Pakistan Agricultural Research Council (PARC) Mardan Station, during winter 2010-2011 to investigate the "Humic acids affect the bulb production of onion cultivars". The experiment was laid out in randomized complete block design with split plot arrangement having three replications. Humic levels (0, 1, 2 and 3 kg ha-1) were allotted to main plots, while cultivars...
July 2012
Comparative performance of direct agglutination test, indirect immunofluorescent antibody test, polymerase chain reaction and bone marrow aspiration method for diagnosis of Mediterranean visceral leishmaniasis
The objectives of this study were to compare the sensitivities and reliabilities of direct agglutination test (DAT), indirect immunofluorescent antibody test (IFAT), polymerase chain reaction (PCR) and bone marrow aspiration for the diagnosis of Mediterranean visceral leishmaniasis (MVL) using blood samples. Blood samples were collected from 67 confirmed MVL patients and 47 patients with other...
July 2012
Seasonal variation by the onset of symptoms and health care seeking behaviour in 282 patients with Inflammatory Bowel Disease
Environmental factors are believed to trigger the onset of Inflammatory bowel disease (IBD). We aimed to evaluate the seasonal variation in the onset of symptoms in patients with IBD and health care seeking behaviour. 282 patients were chosen from the charts. Demographic features, the month and the age at the onset of presenting symptoms and delayed diagnosis term for each patient were analyzed. Cumulative...
July 2012
Application of polymerase chain reaction (PCR)-based denaturing gradient gel electrophoresis for analysis of microbiota on the tongue dorsa of subjects with halitosis
The purpose of this study was to compare the microbial profiles on the tongue dorsa of healthy subjects and subjects with halitosis using polymerase chain reaction-based denaturing gradient gel electrophoresis (PCR-DGGE). Tongue dorsum scrapings from five healthy subjects and six subjects with halitosis were analyzed by PCR-DGGE using primers specific for the V6 to V8 region of the...
July 2012
'On-farm' seed priming with Zn+Mn is an effective way to improve germination and yield of marigold
One of the major crop productivity constraints in the world is the unavailability of crop nutrients in appropriate amount and form to crops. In order to study the effect of seed priming with zinc and manganese on germination and essence of marigold in laboratory and field seed priming experiments were done at the Research Station of Islamic Azad University, Tabriz, Iran,...
July 2012
Effect of glucose, galactose and lactose on the growth curve of Clostridium perfringens type A
One of the common diseases of cattle and sheep and other animals in the world and Iran, is enterotoxaemia. This disease is dangerous and deadly threat to the livestock facilities because of economic conditions for the bacteria to multiply in large numbers of livestock in a place. In the study, bacteria were isolated in Phosphate Buffered Saline (PBS) culture by ELISA. The Effect of sugars glucose,...
July 2012
Milk hygienic practices and occurrence of Staphylococcus aureus and Escherichia coli O157:H7 in small-scale dairy farms in São Paulo, Brazil
The objective of this study was to assess the relationship between somatic cell counts (SCC), the use of different milking practices, and the occurrence of Staphylococcus aureus and Escherichia coli O157:H7 in 42 small-scale dairy farms located in the state of Sao Paulo, Brazil. S. aureus and E. coli O157:H7 were isolated in the milk from dairy cows with low (<...
July 2012
Evaluation of the effect of Persian shallot (Allium hirtifolium, boiss) aqueous extract on mouth bacterial count compared with chlorhexidine mouth rinse
This study attempted to compare Persian shallot aqueous extract with commercially available chlorhexidine mouth rinse with respect to their anti-microbial activity on salivary bacterial counts. Three groups of 10 volunteers with a healthy oral status, were randomly enrolled. Using sterile water as negative control, using 0.2% chlorhexidine as standard control and Persian shallot aqueous extract for test...
July 2012
Antifungal activity of methanolic extracts of Sorghum halepense against Macrophomina phaseolina
Macrophomina phaseolina (Tassi) Goid., the cause of charcoal rot disease, is the major biotic factor that limits cowpea [Vigna unguiculata (L.) Walp.] productivity worldwide. The present study was designed to investigate the antifungal potential of an allelopathic grassSorghum halepense Pers. for the management of M. phaseolina isolated from charcoal rot infected cowpea...
July 2012
Isolation of Staphylococcus spp. genera from broiler breeder flocks in East Azerbaijan Province of Iran: Prevalence and antimicrobial susceptibility
Staphylococcus spp. are Gram-positive cocci present on the skin and mucous membranes of humans and animals, and also as environmental contaminants. The aim of this study was to investigate the prevalence and antimicrobial susceptibility ofStaphylococcus spp. genera from broiler breeder flocks in East Azerbaijan province of Iran. In this study, 14 broiler breeder flocks were studied for existence...
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