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Your search keyword '"Umar, S."' showing total 10 results
Start Over Author "Umar, S." Publication Type Books
10 results on '"Umar, S."'

5. Truncus Arteriosus

Author

Sainathan, Sandeep, primary, Bayle, Ken-Michael, additional, Knott-Craig, Christopher J., additional, and Boston, Umar S., additional

Published
2020
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9. Environmental Studies in Uzbekistan Institute of Nuclear Physics With the Use of Nuclear Methods.

Author

Yuldashev, Bekhzod S., Salikhabaev, Umar S., Radyuk, Raisa I., Artemov, Sergey V., Radyuk, Gennadiy A., and Zaparov, Erkin A.

Abstract

Institute of nuclear physics is one of the biggest research centers in Central Asia that conducts a lot of studies in the field of environmental radioactivity. In this study, the evaluation of the data obtained by gamma spectrometry of natural radionuclides in river-bottom sediments and coastal soil in basins of Syrdarya and Amudarya rivers and their inflows on the territory of Uzbekistan are cited. Possible seasonal deviations of activity of radionuclides are also discussed. [ABSTRACT FROM AUTHOR]

Published
2009
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10. Sulfur Assimilation and Cadmium Tolerance in Plants.

Author

Singh, Sarvajeet, Umar, Shahid, Anjum, N. A., Umar, S., Singh, S., Nazar, R., and Khan, Nafees A.

Abstract

Sulfur (S) is an essential element for growth and physiological functioning of plants. S uptake and assimilation in higher plants are crucial factors determining crop yield, quality, and even resistance to various biotic and abiotic stresses. The sulfur assimilation pathway, which leads to cysteine (Cys) biosynthesis, involves high- and low-affinity sulfate transporters and several enzymes. The biochemical and genetic regulation of these pathways is affected by oxidative stress, sulfur deficiency, and heavy metal exposure. In fact thiols are the main form of reduced sulfur in plants to cope with heavy metal stress through enhanced synthesis of heavy metal chelating molecules, glutathione, and phytochelatins (PCs). Cadmium is the most potent activator of phytochelatins (PCs). The present chapter summarizes the available data and information on various aspects and control of enzymatic and nonenzymatic pathways in relation to sulfate assimilation-reduction and metabolism of organic reduced S-containing compounds when plants are challenged by cadmium. [ABSTRACT FROM AUTHOR]

Published
2008
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