نتایج جستجو برای: with two nacl concentrations
تعداد نتایج: 9942384 فیلتر نتایج به سال:
The binding properties of the Escherichia coli encoded single strand binding protein (SSB) to a variety of synthetic homopolynucleotides, as well as to single stranded M13 DNA, have been examined as a function of the NaCl concentration (25.0 degrees C, pH 8.1). Quenching of the intrinsic tryptophan fluorescence of the SSB protein by the nucleic acid is used to monitor binding. We find that the ...
In this study, the effects of various concentrations of NaCl and KCl and partial replacement of NaCl withKCl on the growth characteristics of L. monocytogenes were evaluated. It was found that L. monocytogenescan grow in the presence of 1-9% NaCl and 1-11% KCl. The higher the concentration of salt used, the longerthe lag phase induced. In addition, it was observed that L. monocytogenes tolerate...
Salinity stress is one of the limiting factor determining plant growth and development through negative effects on plant physiological processes. Interaction of salinity and certain plant growth regulators such as gibberellin affected physiological and biochemical responses in plants. In present research, the effects of different concentrations of sodium chloride (0, 30, 60, 90 and 120 mM NaCl)...
abstract in this thesis at first we comput the determinant of hankel matrix with enteries a_k (x)=?_(m=0)^k??((2k+2-m)¦(k-m)) x^m ? by using a new operator, ? and by writing and solving differential equation of order two at points x=2 and x=-2 . also we show that this determinant under k-binomial transformation is invariant.
a large number of single research studies on the effects of strategy-based instruction (sbi) in teaching english as a foreign or second language has been conducted so far. however, the lack of a comprehensive meta-analysis targeting the effectiveness of english language sbi is observed. moreover, the findings of experimental studies regarding the context of the english language, proficiency lev...
this research aims at answering the questions about translation problems and strategies applied by translators when translating cultural concepts. in order to address this issue, qualitative and quantitative study were conducted on two groups of subjects at imam reza international university of mashhad. these two groups were assigned as beginner and advanced translation students (10 students). ...
In this study, we demonstrate that two of the osmolytes utilized in the osmoconforming strategy of larval Culex tarsalis are regulated by two fundamentally different signals. When the external osmolality was increased using salinity (sea salts), hemolymph NaCl, proline and trehalose concentrations increased significantly. When sorbitol was used to increase the external osmolality without an ele...
as sesame is a somewhat neglected crop, information concerning its response to salinity is lacking. the effects of nacl stress were studied on seven genotypes of sesamum indicum l. the 6-weeks-old sesame seedlings were treated with different nacl concentrations (0, 30, and 60 mm). the nacl caused significant decreases in fresh and dry mass of all genotypes; however responses of genotypes to the...
Soil salinization is one of the most significant global problems, leading to reduced agricultural productivity potential and biodiversity. The main salt commonly found on surface soils in water NaCl, which directly impacts plant growth land degradation. Therefore, this study was conducted examine morpho-physiological characteristics two genotypes Camelina sativa (?NS Slatka?; ?NS Zlatka?) Carth...
This study was performed to investigate interactions of different levels of vermicompost extract and salinity stress on germination characteristics of chickpea seedlings. The factorial experiment was conducted in completely randomized design with three replications. Concentrations of vermicompost extract (0, 5, 10 and 20 volumetric percentage) and salinity levels (0, 30, 60 and 90 mM NaCl). Res...
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