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Research Article Open access CC BY 4.0

Versatile Medium for the Isolation of Sulfur-Reducing Bacteria from Natural Ecotypes

Nyamath Syed, Karthikeyan Subburamu, Balachandar Dananjeyan, Meena Suresh, Sara Parwin Banu Kamaludeen

International Journal of Environment and Climate Change · pp. 1167–1175 · Published 29 Dec 2022

10.9734/ijecc/2022/v12i121555

Abstract

Sulfate-reducing bacteria (SRB) are a diverse group of microorganisms that are commonly isolated from anoxygenic environments (lake depths, soil, or swamps) and are also found in the intestines of humans and animals. They are well known for outcompeting methanogens for common substrates thereby helping in the decrease of methane emissions and also playing a major role in sulfur cycling. Therefore, determining the cultivable methods for their isolation is important. Various media has been used for the cultivation and purification of SRB from natural wetlands. The luxuriant growth of SRB was observed in all the media tested, out of which the best suitable media to recover a maximum of colonies from the natural soil/sediment samples was discovered as a modified postage medium. The enumeration of the isolated SRB was done by the most probable number (MPN) technique. A total of twenty pure isolates of SRB were isolated from different ecotypes.

Sulfate-reducing bacteria (SRB) anoxic environment MPN technique natural wetlands

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Cited by 4

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Zhendong Yang, Jing Wang, Qihong Wu · Journal of Environmental Management · 2024

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