Journal ArticleDOI
An introduction to stone colonizing micro-organisms and biodeterioration of building stone
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In this paper, the main groups of micro-organisms found on stone and their role in stone biodeterioration are reviewed, and the final section discusses decay processes which can be brought about by many different groups living together as a complex microbial community at the stone surface.Abstract:
Over the last decade, the concept of stone decay being caused solely by one or two processes has been revised in favour of a more holistic notion that many operate together, are synergistic and possibly cyclical or seasonal. Certain of these processes may become predominant over others at particular times of the year or at specific periods in the history of the stone. Many researchers from different disciplines now agree that biological deterioration is of significance, and cross disciplinary work is becoming the rule rather than the exception. This short introduction gives an overall view of the principal mechanisms important in stone biodeterioration. The main groups of micro-organisms found on stone and their role in stone biodeterioration are reviewed. The final section discusses decay processes which can be brought about by many different groups of micro-organisms living together as a complex microbial community at the stone surface.read more
Citations
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Conservation of ornamental stone by Myxococcus xanthus-induced carbonate biomineralization.
Carlos Rodriguez-Navarro,Manuel Rodriguez-Gallego,Koutar Ben Chekroun,Maria Teresa Gonzalez-Muñoz +3 more
TL;DR: It is reported that Myxococcus xanthus-induced calcium carbonate precipitation efficiently protects and consolidates porous ornamental limestone and forms new carbonate crystals that are more stress resistant than the calcite grains of the original stone.
Journal ArticleDOI
Biomineralization of calcium carbonates and their engineered applications: a review
TL;DR: The present review sheds light on benefits of bacterial biominerals over traditional agents and also the issues that lie in the path of successful commercialization of the technology of microbially induced calcium carbonate precipitation from lab to field scale.
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Role of cyanobacterial exopolysaccharides in phototrophic biofilms and in complex microbial mats
TL;DR: The aim of this survey is to outline the state-of-the-art of the importance of the cyanobacterial EPS excretion, both for the producing cells and for the microbial associations in which cyanobacteria are a key component.
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Biodiversity of cyanobacteria and green algae on monuments in the Mediterranean Basin: an overview
TL;DR: The results suggest that cyanobacteria and chlorophyta colonize a wide variety of substrata and that this is related primarily to the physical characteristics of the stone surface, microclimate and environmental conditions and secondarily to the lithotype.
Journal ArticleDOI
The role of microorganisms and biofilms in the breakdown and dissolution of quartz and glass
TL;DR: In this paper, the results of laboratory experiments with biofilms on quartz sand and glass were compared with material from the field, and they concluded that biofilm growth in marine (sub-aquatic) and terrestrial (subaerial) conditions can significantly increase the breakdown of silica in the amorphous (glass), sub-crystalline (chert), crystalline and granular forms of quartz.
References
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Journal ArticleDOI
Microbial water stress.
TL;DR: It is argued that, notwithstanding the indispensability of water in living systems and the unique properties of solvent water, quantitative variations in the amount of water available are of less direct microbiological significance than is generally conceded.
Journal ArticleDOI
Bacterial extracellular polysaccharides.
TL;DR: The synthesis of extracellular polysaccharides has been recognized in certain bacterial cultures since the 1880s and much effort has been directed towards elucidating their structure in pathogenic bacteria and in enteric organisms in particular.
Book
The biology of the algae
TL;DR: The biology of the algae, The biology of algae, the authors, The Biology of algae, کتابخانه مرکزی دانشگاه علوم پزδکی Â Â تهران
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Air Pollution and Lichens
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Chelating Properties of Extracellular Polysaccharides from Chlorella spp.
TL;DR: The differences in metal-complexing capacity observed for dissolved polysaccharides obtained from various Chlorella species is attributable to differences in the composition of the poly Saccharides, notably the uronic acids content.