Organomineralization of proto-dolomite by a phototrophic microbial mat extracellular polymeric substances: Control of crystal size and its implication for carbonate depositional systems
作者： Carlos Paulo , Judith A. Mckenzie , Basirath Raoof , Jörg Bollmann , Roberta Fulthorpe
DOI: 10.2475/01.2020.05
关键词: Carbonate 、 Organic matter 、 Phototroph 、 Chemistry 、 Dolomite 、 Microbial mat 、 Environmental chemistry 、 Sulfate 、 Microbial metabolism 、 Extracellular polymeric substance
摘要: Many have postulated that a specific microbial metabolism or the presence of microbes or/and their extracellular polymeric substances (EPS) can lead to formation dolomite. Although now there is consensus dolomite be formed in microorganisms, exact nature involvement nucleation remains matter debate. The focus understanding how mats determine mineralogy Here we report effect EPS extracted from phototrophic mat isolated sabkha Qatar dominated by cyanobacteria (Lyngbya aestuarii) precursors at 25 °C and 40 °C. Both temperature impact size morphology minerals, promoting spherulitic dumbbell growth sulfate free solutions. proto-dolomite was enhanced abundance carboxylated molecules which controlled polymorphism carbonates. Our study emphasizes dual importance organic on mineral chemical composition sabkhas.
harvard.edu
sci-hub.se 
researchgate.net 参考文章(73)
Lynton S. Land, Failure to Precipitate Dolomite at 25 °C fromDilute Solution Despite 1000-Fold Oversaturation after32 Years Aquatic Geochemistry. ,vol. 4, pp. 361- 368 ,(1998) , 10.1023/A:1009688315854
Rosmarie Rippka, Isolation and purification of cyanobacteria. Methods in Enzymology. ,vol. 167, pp. 3- 27 ,(1988) , 10.1016/0076-6879(88)67004-2
ALESSANDRA SPADAFORA, EDOARDO PERRI, JUDITH A. MCKENZIE, CRISÃGONO VASCONCELOS, Microbial biomineralization processes forming modern Ca:Mg carbonate stromatolites Sedimentology. ,vol. 57, pp. 27- 40 ,(2010) , 10.1111/J.1365-3091.2009.01083.X
Dongbo Wang, Laura M. Hamm, Robert J. Bodnar, Patricia M. Dove, Raman spectroscopic characterization of the magnesium content in amorphous calcium carbonates Journal of Raman Spectroscopy. ,vol. 43, pp. 543- 548 ,(2012) , 10.1002/JRS.3057
Susanne Schultze-Lam, Terry J. Beveridge, Nucleation of celestite and strontianite on a cyanobacterial s-layer. Applied and Environmental Microbiology. ,vol. 60, pp. 447- 453 ,(1994) , 10.1128/AEM.60.2.447-453.1994
Rhona K Stuart, Xavier Mayali, Jackson Z Lee, R Craig Everroad, Mona Hwang, Brad M Bebout, Peter K Weber, Jennifer Pett-Ridge, Michael P Thelen, Cyanobacterial reuse of extracellular organic carbon in microbial mats The ISME Journal. ,vol. 10, pp. 1240- 1251 ,(2016) , 10.1038/ISMEJ.2015.180
Carlos Paulo, Maria Dittrich, 2D Raman spectroscopy study of dolomite and cyanobacterial extracellular polymeric substances from Khor Al-Adaid sabkha (Qatar) Journal of Raman Spectroscopy. ,vol. 44, pp. 1563- 1569 ,(2013) , 10.1002/JRS.4368
Tomaso R. R. Bontognali, Crisógono Vasconcelos, Rolf J. Warthmann, Rebecca Lundberg, Judith A. McKenzie, Dolomite-mediating bacterium isolated from the sabkha of Abu Dhabi (UAE) Terra Nova. ,vol. 24, pp. 248- 254 ,(2012) , 10.1111/J.1365-3121.2012.01065.X
Józef Kaźmierczak, Tom Fenchel, Michael Kühl, Stephan Kempe, Barbara Kremer, Bożena Łącka, Krzysztof Małkowski, CaCO3 precipitation in multilayered cyanobacterial mats: clues to explain the alternation of micrite and sparite layers in calcareous stromatolites. Life. ,vol. 5, pp. 744- 769 ,(2015) , 10.3390/LIFE5010744
M. OBST, B. WEHRLI, M. DITTRICH, CaCO3 nucleation by cyanobacteria: laboratory evidence for a passive, surface-induced mechanism. Geobiology. ,vol. 7, pp. 324- 347 ,(2009) , 10.1111/J.1472-4669.2009.00200.X