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Diazotrophic activity and ferric phosphate mineralizing ability in estuarine sulfate reducing bacteria

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Title Diazotrophic activity and ferric phosphate mineralizing ability in estuarine sulfate reducing bacteria
 
Creator Banik, S
Ninawe, A
 
Description 238-241
Twenty strains of sulfate reducing bacteria were isolated from water and sediments of Cochin backwaters, India. Five of them were identified as Desulfovibrio disulfuricans and fifteen as Desulfotomaculum orientis. All the Desulfovibrio were isolated from sediments whereas Desulfotomaculum was present in both water and sediment. All the bacteria grew at pH of slightly alkaline reaction and lowered the Eh from -105 to -270 m V of the growth medium. Complete reduction of sulfate to sulfide by the bacteria was evidenced by blackening of Postgate culture media. All isolates were able to fix nitrogen in anaerobic N-free modified Postgate broth. In addition to nitrogen fixing ability, 5 of the Desulfotomaculum and 3 of the Desulfovibrio were able to produce soluble phosphorus in growth medium from insoluble FePO4. A scheme for FePO4 mineralization in marine and estuarine sediments has been proposed.
 
Date 2016-12-09T10:22:51Z
2016-12-09T10:22:51Z
1989-12
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://nopr.niscair.res.in/handle/123456789/38420
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.18(4) [December 1989]