Phototrophic Colonization in Dolomitic Limestone: Comparison between Single vs Artificial Multispecies

IF 2.2 4区环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES

Geomicrobiology Journal Pub Date : 2023-03-30 DOI:10.1080/01490451.2023.2192211

F. Soares, J. Trovão, I. Tiago, S. Cardoso, Francisco Gil, L. Catarino, A. Portugal

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Abstract

Abstract Phototrophic organisms, such as microalgae and cyanobacteria, are known to be major contributors to stone decay. The purpose of this study was to assess the dolomitic limestone colonization by phototrophic organisms, using single vs artificial multispecies, under laboratory conditions. To achieve this aim, dolomitic limestone blocks were inoculated with single phototrophic species previously collected from the Old Cathedral of Coimbra, for a period of three months. In parallel, limestone blocks were also inoculated with a mixture of the same isolated single species, in order to compare the colonization capacities of both conditions. Results were evaluated based on visual inspection, surface covered area, colorimetric and SEM analyses. Results showed that the phototrophic organisms were able to colonize the dolomitic limestone blocks in both conditions (single vs artificial multispecies), but biofilm development was more enhanced when single species, rather than multispecies, were used. The obtained results also allowed to observe the capacity for endolithic colonization and the formation of small cavities by some species.

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白云石石灰岩的光营养定殖：单一种与人工多种的比较

摘要众所周知，光营养生物，如微藻和蓝藻，是结石腐烂的主要原因。本研究的目的是在实验室条件下，使用单一和人工多物种，评估光营养生物对白云质石灰岩的定殖。为了实现这一目标，用以前从科英布拉老教堂采集的单一光养物种接种白云质石灰岩块，为期三年月。同时，还用相同分离的单一物种的混合物接种石灰石块，以比较两种条件下的定植能力。根据目视检查、表面覆盖面积、比色法和SEM分析对结果进行评估。结果表明，在两种条件下（单一物种与人工多物种），光营养生物都能够在白云质石灰岩块体上定居，但当使用单一物种而不是多物种时，生物膜的发育会得到更大的增强。所获得的结果也使我们能够观察到一些物种在旧石器时代的殖民化能力和形成小洞穴的能力。

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来源期刊

Geomicrobiology Journal 环境科学-地球科学综合

CiteScore

4.80

自引率

8.70%

发文量

审稿时长

3.3 months

期刊介绍： Geomicrobiology Journal is a unified vehicle for research and review articles in geomicrobiology and microbial biogeochemistry. One or two special issues devoted to specific geomicrobiological topics are published each year. General articles deal with microbial transformations of geologically important minerals and elements, including those that occur in marine and freshwater environments, soils, mineral deposits and rock formations, and the environmental biogeochemical impact of these transformations. In this context, the functions of Bacteria and Archaea, yeasts, filamentous fungi, micro-algae, protists, and their viruses as geochemical agents are examined. Articles may stress the nature of specific geologically important microorganisms and their activities, or the environmental and geological consequences of geomicrobiological activity. The Journal covers an array of topics such as: microbial weathering; microbial roles in the formation and degradation of specific minerals; mineralization of organic matter; petroleum microbiology; subsurface microbiology; biofilm form and function, and other interfacial phenomena of geological importance; biogeochemical cycling of elements; isotopic fractionation; paleomicrobiology. Applied topics such as bioleaching microbiology, geomicrobiological prospecting, and groundwater pollution microbiology are addressed. New methods and techniques applied in geomicrobiological studies are also considered.