Gram-negative bacteria play an important role in the formation and stabilization of biofilm structures on stone surfaces. Therefore, the control of growth of gram-negative bacteria offers a way to diminish biodeterioration of stone materials. The effect of potential permeabilizers on the outer membrane (OM) properties of gram-negative bacteria was investigated and further characterized. In addi...

Acrylic polymers have been widely used in the field of conservation since the 1930’s. However, it is becoming increasingly apparent that under certain conditions, these synthetic polymers are subject to degradation through the activities of microbiological organisms. The biodeterioration of synthetic polymers is of particular concern to conservators when used for the long-term protection of arc...

The study deals with lichen diversity on monuments of Bhimbetka rock shelters at Raisen district Madhya Pradesh. micro-climatic conditions the provide excellent habitat for lichens to colonize. A total 40 species belonging 10 communities exhibit their occurrence shelters. crustose and squamulose 21 dominance followed by eight Physioid seven Teloschistacean communities. ecology colonizing togeth...

The extracellular polysaccharides produced by sorne fungi involved in the deterioratlon of wood (Pleurotus species) and stone (Ulocladium atrum) were isolated and characterized. Both are 13-0 ..... 3)-linked glucans with considerable branching degree, as revealed by methylation analysis and 13C-NMR. The Pleurotus glucans present the most complex structure and the study was followed by the analy...

In this study, a culture-independent Illumina MiSeq sequencing strategy was applied to investigate the microbial communities colonizing the ancient painted sculptures of the Maijishan Grottoes, a famous World Cultural Heritage site listed by UNESCO in China. Four mixed samples were collected from Cave 4-4 of the Maijishan Grottoes, the so-called Upper Seven Buddha Pavilion, which was built duri...

During the service life of buildings, natural aging and eventual damage of materials due to different chemical, physical, and biological processes can take place. Ageing of the materials is one aspect of the environmental processes and involve different chemical, mechanical and biological reactions of the materials. Bio-deterioration, e.g. mould, decay and insect damage in buildings, is caused ...

The dry rot fungus Serpula lacrymans (Basidiomycota) is the most damaging destroyer of wood construction materials in temperate regions. While being a widespread aggressive indoor biodeterioration agent, it is only found in a few natural environments. The geographical source of spread and colonization by this fungus in human environments is thus somewhat of an enigma. Employing genetic markers ...