The influence of substrate texture on early biological colonization

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    Biological colonization of stone is a major concern in the preservation and presentation of cultural heritage. Colonization is typically associated with unpleasant soiling, and varying degrees of biodeterioration. A better understanding of why organisms grow where they do, will aid in
    developing preventative, and treatment methods for biosoiling of cultural heritage. Sandstone exposure trials were set up at nine different locations across Northern Ireland to investigate the influences of local climate, local environmental,and micro-climatic factors on the early stages (up to 21 months) of biological colonization.
    Results showed that, green and yellow soiling occurred on tooled stone surfaces, whereas darkening occurred preferentially on smooth surfaces. It is likely that different populations of organisms occur on these surfaces with green algae occurring on tooled surfaces due to slower drying rates (i.e. prolonged moisture retention), and cyanobacteria and fungi thriving on smooth surfaces due to their ability to withstand moisture fluctuation.
    Original languageEnglish
    Title of host publicationScience and Technology for the Conservation of Cultural Heritage
    Editors Rogerio-Candelera, Lazzari, Cano
    Place of PublicationLondon
    PublisherTaylor and Francis
    Number of pages4
    ISBN (Print)978-1-138-00009-4
    Publication statusPublished - 2013


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