Decomposition of silicate minerals by Bacillus mucilaginosus in liquid culture

Environmental Geochemistry and Health
Wuxing LiuPeter Christie

Abstract

The extraction of K(+) and SiO(2 )from silicate minerals by Bacillus mucilaginosus in liquid culture was studied in incubation experiments. B. mucilaginosus was found to dissolve soil minerals and mica and simultaneously release K(+) and SiO(2) from the crystal lattices. In contrast, the bacterium did not dissolve feldspar. B. mucilaginosus also produced organic acids and polysaccharides during growth. The polysaccharides strongly adsorbed the organic acids and attached to the surface of the mineral, resulting in an area of high concentration of organic acids near the mineral. The polysaccharides also adsorbed SiO(2) and this affected the equilibrium between the mineral and fluid phases and led to the reaction toward SiO(2 )and K(+) solubilization. These two processes led to the decomposition of silicate minerals by the bacterium.

References

Apr 1, 1993·Journal of Bacteriology·M U Mera, T J Beveridge
May 1, 1994·Microbial Ecology·P VandevivereD L Kirchman

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Citations

Mar 12, 2010·Applied Microbiology and Biotechnology·Jin-Guang WuJi-Shuang Chen
Nov 7, 2015·Indian Journal of Microbiology· AbhilashS Sarkar
Sep 6, 2015·World Journal of Microbiology & Biotechnology·Monika Osińska-JaroszukMałgorzata Majewska
Dec 10, 2013·Microbiological Research·Vijay Singh MeenaJay Prakash Verma
Jan 1, 2012·Saudi Journal of Biological Sciences·I I Abou-El-Seoud, A Abdel-Megeed
Jan 6, 2017·Journal of the American Chemical Society·Xavier Vila-FarresSean F Brady
Aug 23, 2019·Bioprocess and Biosystems Engineering·Ying LvJianxin Wen
Dec 24, 2020·Current Microbiology·Mohammad Yaghoubi KhanghahiCarmine Crecchio
Jul 6, 2021·Plant Physiology and Biochemistry : PPB·Gaurav RaturiRupesh Deshmukh

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