Structure and Activity of Fe(III)-Reducing Microorganism Occurring in Paddy Fields of Thailand

Bongoua-Devisme A. J., Aurélie Cebron, Emile Kouadio Yoboue, Christian Mustin and Jacques Berthelin

International Journal of Sciences, 2014, vol. 3, issue 06, 6-17

Abstract: In the saline paddy soils of Thailand, four bacterial consortia (S1, S2, S6, and S8) were isolated in paddy soils and then selected for their abilities and efficiencies to reduced iron oxyhydroxyde (goethite) at different concentration of salt in culture medium. In this study, the effect of salinity on the structure and activities of bacterial consortia involved in iron reduction process were studied at two saline concentrations (0 and 3% NaCl). The results show that the bacterial consortia presented different behaviors in the presence or absence of salt. The bacterial consortia S1 and S2 were not affected by the presence of salt. Bacterial consortium S6 had a higher iron-reducing activity under saline conditions than in a non-saline environment. The iron reducing activity of the bacterial consortium S8 was inhibited by the presence of salt but not fermentation processes. In this rice fields, the presence of diverse halosensitive to slightly halophilic bacterial groups and also of bacteria presenting both fermentative and iron-respiring metabolisms are able to maintain a strong ability in iron-reduction and dissolution under changing saline environmental conditions.

Keywords: iron-reducing bacteria; Fe(III)-reducers; paddy soil; Thailand; salinity; isolated consortia; bacterial populations (search for similar items in EconPapers)
Date: 2014
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.ijsciences.com/pub/article/510 (text/html)
https://www.ijsciences.com/pub/pdf/V320140606.pdf (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:adm:journl:v:3:y:2014:i:6:p:6-17

Ordering information: This journal article can be ordered from
https://www.ijsciences.com/payment_guide.php

Access Statistics for this article

More articles in International Journal of Sciences from Office ijSciences Alkhaer Publications Manchester M8 8XG England.
Bibliographic data for series maintained by Staff ijSciences ().