NDLI: Interaction of anoxygenic phototrophic bacteria Rhodopseudomonas sp. with kaolinite

Content Provider	Springer Nature Link
Author	Kompantseva, E. I. Naimark, E. B. Boeva, N. M. Zhukhlistov, A. P. vikov, V. M. Nikitina, N. S.
Copyright Year	2013
Abstract	The interaction between freshwater nonsulfur purple bacteria Rhodopseudomonas sp. UZ-25p (Uzon caldera, Kamchatka, Russia) and two kaolinite samples (Zhuravlinyi Log, Chelyabinsk oblast) was investigated. Alterations in the chemical composition of the minerals and solutions, the parameters of bacterial growth, and crystal morphology and mineralogy of the kaolinite samples indicated the interactions between all components of the system (minerals, water, growth medium, and bacteria). Bacteria removed some elements from the medium, used them for growth, and promoted their transition into the mineral exchange pool. In the presence of bacteria, kaolinite cation exchange capacity increased and saturation of kaolinites with bases occured. Partial biodegradation of kaolinites, accompanied by ordering of the crystalline structure of their lamellar phase, was the main factor responsible for the increase in cation exchange capacity. For the first time anoxygenic phototrophic bacteria were found to degrade kaolinite with formation of gibbsite. The theoretical and applied significance of the experimental results is discussed.
Starting Page	316
Ending Page	326
Page Count	11
File Format	PDF
ISSN	00262617
Journal	Microbiology
Volume Number	82
Issue Number	3
e-ISSN	16083237
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2013-06-08
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	kaolinite anoxygenic phototrophic bacteria anaerobic conditions exchange cations differential thermal analysis electron diffraction analysis bioleaching gibbsite Microbiology Medical Microbiology
Content Type	Text
Resource Type	Article
Subject	Microbiology Applied Microbiology and Biotechnology

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