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Abstract  

The effect of oxygen concentration on the melting of this eutectic was investigated by DSC. In the deoxygenized solution, an endothermic peak attributed to the eutectic transition was observed in the course of heating, and its peak temperature is around −21.5°C. Another endothermic peak appeared at lower temperature in the presence of oxygen. As the oxygen content in the solution increases, the temperature of this peak is shifted to lower temperature. The transition at the lower temperature are associated with the melting of eutectic carrying oxygen. The same results are given in the NMR data.

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This study may present first total bacterial counts estimated in Lake Timsah and El-Teloul and Mesafaq Basins of Bardawil Lagoon using the dilution culture technique followed by filtration through 0.2 µm cellulose nitrate filters and examined by epifluorescent microscope after staining with acridine orange. Also, the staining of bacterial cultures with acridine orange in metabolically active and inactive states was investigated using direct epifluorescent filter technique. Generation time of Lake Timsah bacterial cultures was 2.04 generations day −1 and growth rate was 0.049 h −1 . In Bardawil Lagoon doubling time was 3.3 and 1.79 generations day −1 for samples collected from El-Teloul and Mesafaq, respectively. The growth rates were 0.09 and 0.04 h −1 for El-Teloul and Mesafaq Basins, respectively.

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. Bourgou , S. , Kchouk , M. E. , Bellila , A. , Marzouk , B. ( 2010 ) Effect of salinity on phenolic composition and biological activity of Nigella sativa . Acta Hortic. 853 , 57 – 60 . 8

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Acta Agronomica Hungarica
Authors: R. Maiti, S. Kousik, H. González Rodríguez, D. Rajkumar, and P. Vidyasagar

2289 2303 Azaizeth, H., Steudle, E. (1991): Effects of salinity in water transport of excised maize roots. Plant Physiol. , 97 , 1136

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Abstract  

Neutron Activation Analysis is a sensitive technique for the determination of more than seventy elements at the trace concentrations. The NAA analysis of biological and environmental matrices suffers from interferences caused by the presence of high concentrations of activated salts in these matrices. The high gamma-ray activities of these activated salts mask the low gamma-ray activities of short half-lived isotopes (e.g.,66Cu,56Mn,28Al and52V) necessitating the rapid separation of trace metals from high concentrations of salts. Poly-5-vinyl-8-hydroxyquinoline has been used to develop a new method to rapidly and quantitatively precipitate aluminum, copper, vanadium and manganese from neutron-activated biological and environmental matrices.

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 al., 2014 ). Puccinellia distans , or weeping alkali grass, is a C3 perennial, cool-season halophytic grass, which grows in saline environments throughout the world. Salt stress affects plant growth and metabolism mainly through ion

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Aliasgharzadeh, N.N., S. Rastin, H. Towfighi and A. Alizadeh. 2001. Occurrence of arbuscular mycorrhizal fungi in saline soils of the Tabriz Plain of Iran in relation to some physical and chemical properties of

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Capsicum annuum . S. Afr. J. Chem. 69 , 207 – 211 . 2. Ashraf , M. , Harris , P. J. C. ( 2004 ) Potential biochemical indicators of salinity tolerance in plants . Plant

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. 2006 38 1649 1659 Al-Hakimi, A.M.A., Hamada, A.M. 2001. Counteraction of salinity stress on wheat plants by grain

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): Some problems of the selection of sources of tolerance to salinity in tomato. Acta Hort. , 14, 12-28. Some problems of the selection of sources of tolerance to salinity in tomato Acta Hort

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