Noureddin Boulenouar
Department of Biological and Biotechnological Sciences, Faculty of Arts, Hashemite University, P.O. Box 330093, Zarqa 13133, Jordan
Farouk Al-Quadan
Department of Biological and Biotechnological Sciences, Faculty of Sciences, Hashemite University
Hazem Akel
Department of Medical Laboratory Sciences, Faculty of Allied Health Sciences, Hashemite University, Zarqa, Jordan
ABSTRACT
Intracellular glucose-6-phosphate dehydrogenase (G6PDH) and 6-phosphogluconate dehydrogenase (6PGDH) from Bacillus schlegelii, Bacillus sphaericus, Bacillus marinus and Bacillus circulans were variably sensitive to growth conditions (temperature, pH and NaCl) and so were G6PDH and 6PGDH within the same strain. Thermostability of 6PGDH and G6PDH vary among the studied species; the difference in thermostability between the more stable G6PDH and the less stable 6PGDH from the same species may compensates the lower G6PDH and the higher 6PGDH activity found in this study. These results may indicate the existence of separate regulatory pathways for the two enzyme activities; one pathway may be related to thermostability and other pathways may be related to other growth conditions of pH and NaCl.
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How to cite this article
Noureddin Boulenouar, Farouk Al-Quadan and Hazem Akel, 2006. Effect of Various Combinations of Growth Temperature, pH and NaCl on Intracellular Activities of G6PDH and 6PGDH from Four Bacillus strains isolated from Jordanian Hot springs. Journal of Biological Sciences, 6: 586-590.
DOI: 10.3923/jbs.2006.586.590
URL: https://scialert.net/abstract/?doi=jbs.2006.586.590
DOI: 10.3923/jbs.2006.586.590
URL: https://scialert.net/abstract/?doi=jbs.2006.586.590
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