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Indian Journal of Experimental Biology (IJEB) >
IJEB Vol.44 [2006] >
IJEB Vol.44(04) [April 2006] >
| Title: | Siderophores of halophilic archaea and their chemical characterization |
| Authors: | Dave, B P
Anshuman, Kena
Hajela, Puja |
| Keywords: | Amphiphilic siderophores
Carboxylate
Catecholate
Halophilic archaea
Hydroxamate
Siderophores |
| Issue Date: | Apr-2006 |
| Publisher: | CSIR |
| Abstract: | Nine halophilic archaea viz., Halobacterium
salinarum, Halobacterium sp.1, Halobacterium
sp.2, Halobaculum sp., Halococcus saccharolyticus, Halorubrum saccharovorum, Haloterrigena turkmenica, Halogeometricum sp. and Natrialba sp. isolated from marine salterns around
Bhavnagar coast were screened for siderophore production. Five isolates viz., Halococcus saccharolyticus, Halorubrum saccharovorum, Haloterrigena turkmenica, Halogeometricum sp. and Natrialba sp. produced siderophores as
evidenced by positive reaction in FeCl3 test, CAS assay and CAS agar
plate test. Determination of chemical nature of siderophores by chemical assays
and bioassays identified them as carboxylates. Quantification of siderophores
indicated Halorubrum saccharovorum to
be the maximum siderophore producer (2.62 RE mg/ml) and Halococcus
saccharolyticus to be the least (1.33
RE mg/ml). The present study is the first report on siderophore production in
Indian haloarchaeal strains. Mechanism of iron assimilation in four
non-siderophore isolates still needs to be investigated further. |
| Page(s): | 340-344 |
| ISSN: | 0975-1009 (Online); 0019-5189 (Print) |
| Source: | IJEB Vol.44(04) [April 2006]
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