Journal article

Bacterial communities inside and surrounding soil iron-manganese nodules

Jizheng He, Limei Zhang, Shengsheng Jin, Yongguan Zhu, Fan Liu

Geomicrobiology Journal | TAYLOR & FRANCIS INC | Published : 2008

Abstract

Bacterial community structures of a Fe-Mn nodule sample and its surrounding soil were investigated using PCR, amplified ribosomal DNA restriction analysis, cloning and sequencing methods. Result showed that phylogenetically diverse bacteria were present in the nodule and soil samples, and Acidobacteria- and Proteobacteria-affiliated bacteria dominated in both samples. However, Firmicutes were only found in the nodules, while the soil had much more Acidobacteria and Verrucomicrobia than the nodules. Many clones retrieved in this study closely resembled the clones previously obtained from environments with high metal contents. These findings may shed light on the biological formation of Mn oxi..

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University of Melbourne Researchers