Rôle du support dans la croissance des microorganismes

Deruelle, S.

doi:10.1007/bf02472980

Cited by 7 publications

(6 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These microorganisms allow the successive implantation and the growth of other biological organisms such as lichens and bryophytes. If no solution is found, the pteridophytes and higher plants may also appear (Perrichet, 1984;Deruelle, 1991;Barberousse, 2006). The microbial development must be eliminated to avoid worse consequences to buildings.…”

Section: Introductionmentioning

confidence: 99%

“…The local environmental conditions, such as topography and nature of the ground, presence of moisture and/or industrial activities around the buildings, should be taken into account. As an example, a house roof, located close to seaside, can be totally colonized by nitrophilous lichens, characterized by the yellow or orange, in a few years (Deruelle, 1991).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of the intrinsic characteristics of mortars on their biofouling by pigmented organisms: Comparison between laboratory and field-scale experiments

Tran

Govin

Guyonnet

et al. 2014

International Biodeterioration & Biodegradation

View full text Add to dashboard Cite

Biodeterioration of mortars by the photosynthetic microorganisms is affected by their intrinsic properties such as porosity, roughness and surface pH. The influence of these parameters was examined using an accelerated fouling test in laboratory and a natural fouling test in the real-world (in-situ). Basing on color measurement and image analysis, the impact of each intrinsic parameter was evaluated. The results differed from a scale to the other one. No influence of porosity was measured on the algal colonization rate in the laboratory test whereas, a high porosity seemed to increase slightly the bioreceptivity of the mortars exposed outdoor. The roughness, in both tests, promoted the microbial colonization. However, the discrimination of roughness grades was better in the laboratory test than in the in-situ one. 2 The surface pH influenced remarkably on the accelerated biofouling test but not on the in-situ one. These dissimilarities resulted from the differences in experimental configurations of the two tests.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of the intrinsic characteristics of mortars on their biofouling by pigmented organisms: Comparison between laboratory and field-scale experiments

Tran

Govin

Guyonnet

et al. 2014

International Biodeterioration & Biodegradation

View full text Add to dashboard Cite

show abstract

“…The substrate characteristics that contribute to biological colonization are both physical (roughness, porosity) and chemical (mineral composition, surface pH) (Deruelle, 1991;Ortega-Calvo et al, 1995;Tomaselli et al, 2000). All of these parameters are included in the term "bioreceptivity" defined by Guillitte (1995).…”

Section: Introductionmentioning

confidence: 99%

Influence of the intrinsic characteristics of mortars on biofouling by Klebsormidium flaccidum

Tran

Govin

Guyonnet

et al. 2012

International Biodeterioration & Biodegradation

View full text Add to dashboard Cite

The goal of this study was to elucidate the influence of the intrinsic properties of roughness, porosity, and surface pH on the susceptibility of mortars to biodegradation by phototrophic microorganisms. An accelerated fouling test was performed allowing a periodic sprinkling of an algae suspension on sample surfaces. The green alga Klebsormidium flaccidum was chosen due to its representativeness and facility in culturing. The biofouling of sample surfaces was evaluated by means of image analysis and color measurement. Two porosities, three roughnesses, and two surface pHs were examined. The colonization by algae of sample surfaces was not influenced by porosity because of the specific conditions of testing that led to a constant high level of moistening of mortar samples. The roughness, in contrast, played an important role in biological colonization. A rougher surface facilitates the attachment of algal cells and so favors the extension of algae. The surface pH was the most important parameter. A lower surface pH accelerated considerably the development of algae on the samples surface.

show abstract

“…Because the damage caused by lichens on buildings is less and slower than those by herbaceous plants, it is essential to consider these damages as being predictors. Despite various studies in the literature regarding the deterioration of stone buildings caused by biological effects [3,5,6,8,9,11,[16][17][18]22,24,25,34,36,37], the studies that discuss the effects of location, surface roughness and the porosity of the building's stone on biological weathering are not sufficient [19,20,24].…”

Section: Introductionmentioning

confidence: 99%

“…Biological colonization is affected by substrate characteristics both physically (roughness and porosity) and chemically (mineral composition and surface pH) [16][17][18]. Some researchers think that of all of the properties, roughness is the one that has the most substantial impact [19,20].…”

Section: Introductionmentioning

confidence: 99%

Impact of the surface roughness of stones used in historical buildings on biodeterioration

Korkanç

Savran

2015

Construction and Building Materials

View full text Add to dashboard Cite

Rôle du support dans la croissance des microorganismes

Cited by 7 publications

References 2 publications

Influence of the intrinsic characteristics of mortars on their biofouling by pigmented organisms: Comparison between laboratory and field-scale experiments

Influence of the intrinsic characteristics of mortars on their biofouling by pigmented organisms: Comparison between laboratory and field-scale experiments

Influence of the intrinsic characteristics of mortars on biofouling by Klebsormidium flaccidum

Impact of the surface roughness of stones used in historical buildings on biodeterioration

Contact Info

Product

Resources

About