Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/xmlui/handle/123456789/18626
Title: Insights into metabolism and sodium chloride adaptability of carbaryl degrading halotolerant Pseudomonas sp strain C7
Authors: TRIVEDI, VD
BHARADWAJ, A
VARUNJIKAR, MS
SINGHA, AK
UPADHYAY, P
GAUTAM, K
PHALE, PS
Keywords: Polycyclic Aromatic-Hydrocarbons
Halophilic Bacterial Consortium
Halobacillus-Halophilus
Organic Osmolytes
Aerobic-Bacteria
Biodegradation
Degradation
Soil
Microorganisms
Purification
Issue Date: 2017
Publisher: SPRINGER
Citation: ARCHIVES OF MICROBIOLOGY,199(6)907-916
Abstract: Pseudomonas sp. strain C7 isolated from sediment of Thane creek near Mumbai, India, showed the ability to grow on glucose and carbaryl in the presence of 7.5 and 3.5% of NaCl, respectively. It also showed good growth in the absence of NaCl indicating the strain to be halotolerant. Increasing salt concentration impacted the growth on carbaryl; however, the specific activity of various enzymes involved in the metabolism remained unaffected. Among various enzymes, 1-naphthol 2-hydroxylase was found to be sensitive to chloride as compared to carbaryl hydrolase and gentisate 1,2-dioxygenase. The intracellular concentration of Cl- ions remained constant (6-8 mM) for cells grown on carbaryl either in the presence or absence of NaCl. Thus the ability to adapt to the increasing concentration of NaCl is probably by employing chloride efflux pump and/or increase in the concentration of osmolytes as mechanism for halotolerance. The halotolerant nature of the strain will be beneficial to remediate carbaryl from saline agriculture fields, ecosystems and wastewaters.
URI: http://dx.doi.org/10.1007/s00203-017-1363-4
http://localhost:8080/xmlui/handle/123456789/18626
ISSN: 0302-8933
1432-072X
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