Uptake of volatile n-alkanes by Pseudomonas PG-I.
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Date
1990-12
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Abstract
Using a bacterial species Pseudomonas PG-1, evidence has been obtained which
indicates that uptake of n-pentane to n-octane by microbial cells takes place primarily
from the gas phase either directly or via the aqueous phase. Specific growth rate increased
along with the increase in substrate concentration but above the alkane concentration of
0ยท3% by volume, specific growth rate decreased indicating substrate inhibition of growth.
In the case of less volatile alkanes, n-nonane and n-decane, substrate transfer is
predominantly through substrate solubilization system elaborated by the cells. EDTA, a
strong inhibitor of hydrocarbon solubilization by the cells, inhibited growth on these two
alkanes but had negligible effect on growth on n-pentane to n-octane.
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Keywords
Uptake, volatile n-alkanes, Pseudomonas species
Citation
Cameotra S S, Singh H D. Uptake of volatile n-alkanes by Pseudomonas PG-I. Journal of Biosciences. 1990 Dec; 15(4): 313-322.