Document Detail

Limestone dissolution induced by fungal mycelia, acidic materials, and carbonic anhydrase from fungi.
MedLine Citation:
PMID:  18622718     Owner:  NLM     Status:  MEDLINE    
Microorganisms influence the dissolution of a number of minerals. Limestone is one of the most abundant rock types in karst areas, and is predominantly calcium carbonate. Two types of experimental systems were designed in this paper, to make comparisons of limestone dissolution rate among the acidic materials and extracellular carbonic anhydrase (CA) excreted by fungi and the enwrapping effect of fungal mycelia. One was the simulated experimental system containing microorganisms. Another was the simulated experimental system without microorganisms. Results of previous experiment indicated that the acidic materials and CA like enzymatic materials excreted by fungi and the enwrapping effect of fungal mycelia were important factors influencing limestone dissolution. In the three factors mentioned above, the dissolution effect was mycelia enwraping effect>acidic dissolution effect>CA enzymatic effect. The results of the second experiment demonstrated further that the limestone dissolution effect of the acidic materials excreted by fungi was stronger than that of CA excreted by fungi. Nevertheless, CA still played an important role in promoting the dissolution of limestone.
Wei Li; Peng-Peng Zhou; Li-Ping Jia; Long-Jiang Yu; Xue-Li Li; Min Zhu
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-07-12
Journal Detail:
Title:  Mycopathologia     Volume:  167     ISSN:  0301-486X     ISO Abbreviation:  Mycopathologia     Publication Date:  2009 Jan 
Date Detail:
Created Date:  2008-11-26     Completed Date:  2009-04-09     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7505689     Medline TA:  Mycopathologia     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  37-46     Citation Subset:  IM    
Institute of Resource Biology and Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, People's Republic of China.
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MeSH Terms
Acetazolamide / pharmacology
Calcium Carbonate / metabolism*
Calcium Isotopes
Carbonic Anhydrase Inhibitors / pharmacology
Carbonic Anhydrases / metabolism*
Carboxylic Acids / metabolism*
Hydrogen-Ion Concentration
Mycelium / metabolism*
Penicillium / enzymology
Reg. No./Substance:
0/Calcium Isotopes; 0/Carbonic Anhydrase Inhibitors; 0/Carboxylic Acids; 471-34-1/Calcium Carbonate; 59-66-5/Acetazolamide; EC Anhydrases

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