Abstract
Solar salterns are crystallizer ponds with highly diverse extremophilic microbial flora living individually or in consortium. Twenty-four culturable haloarchaeal isolates were obtained from solar salterns of Goa, which were grouped under Halococcus, Haloferax, Haloarcula and Halorubrum. Cell-free supernatants of different isolates were checked against each other by pour plate technique combined with agar well diffusion method. This resulted in a zone of growth inhibition or stimulation around wells, indicating that some isolates had antagonistic and/or a beneficial effect on the other genera. Thus, members of family Halobacteriaceae were found to secrete extracellular metabolites, which can act as growth enhancers or repressors.
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Abbreviations
- CFS:
-
Cell-free supernatant
- Har :
-
Haloarcula
- Hfx :
-
Haloferax
- Hcc :
-
Halococcus
- Hrr :
-
Halorubrum
- AWDM:
-
Agar well diffusion method
- BLAST:
-
Basic Local Alignment Search Tool
- PAGE:
-
Polyacrylamide gel electrophoresis
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Acknowledgments
This work was supported by University Grants Commission, India (UGC) Major Research Project No: 34-500/2008. The authors thank Dr Hiroaki Minegishi, Bio-Nano Electronics Research Center, Toyo University, Japan for identifying the haloarchaeal isolates.
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Salgaonkar, B.B., Mani, K., Nair, A. et al. Interspecific Interactions Among Members of Family Halobacteriaceae from Natural Solar Salterns. Probiotics & Antimicro. Prot. 4, 98–107 (2012). https://doi.org/10.1007/s12602-012-9097-8
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DOI: https://doi.org/10.1007/s12602-012-9097-8