Coastal Heritage

The South Carolina Sea Grant Consortium publishes Coastal Heritage, a quarterly publication that covers environmental policy, science, history, and culture.

Coastal Heritage

The South Carolina Sea Grant Consortium publishes Coastal Heritage, a quarterly publication that covers environmental policy, science, history, and culture.

Coastal Heritage

The South Carolina Sea Grant Consortium publishes Coastal Heritage, a quarterly publication that covers environmental policy, science, history, and culture.

Coastal Heritage

The South Carolina Sea Grant Consortium publishes Coastal Heritage, a quarterly publication that covers environmental policy, science, history, and culture.

Coastal Heritage

The South Carolina Sea Grant Consortium publishes Coastal Heritage, a quarterly publication that covers environmental policy, science, history, and culture.

Coastal Heritage

The South Carolina Sea Grant Consortium publishes Coastal Heritage, a quarterly publication that covers environmental policy, science, history, and culture.

Coastal Heritage

The South Carolina Sea Grant Consortium publishes Coastal Heritage, a quarterly publication that covers environmental policy, science, history, and culture.

Coastal Heritage

The South Carolina Sea Grant Consortium publishes Coastal Heritage, a quarterly publication that covers environmental policy, science, history, and culture.

Coastal Heritage

The South Carolina Sea Grant Consortium publishes Coastal Heritage, a quarterly publication that covers environmental policy, science, history, and culture.

Coastal Heritage

The South Carolina Sea Grant Consortium publishes Coastal Heritage, a quarterly publication that covers environmental policy, science, history, and culture.

Coastal Heritage

The South Carolina Sea Grant Consortium publishes Coastal Heritage, a quarterly publication that covers environmental policy, science, history, and culture.

Coastal Heritage

The South Carolina Sea Grant Consortium publishes Coastal Heritage, a quarterly publication that covers environmental policy, science, history, and culture.

Coastal Heritage

The South Carolina Sea Grant Consortium publishes Coastal Heritage, a quarterly publication that covers environmental policy, science, history, and culture.

Green mitigation strategy for cultural heritage: bacterial potential for biocide production

Several biosurfactants with antagonistic activity are produced by a variety of microorganisms. Lipopeptides (LPPs) produced by some Bacillus strains, including surfactin, fengycin and iturin are synthesized nonribosomally by mega-peptide synthetase (NRPS) units and they are particularly relevant as antifungal agents. Characterisation, identification and evaluation of the potentials of several bacterial isolates were undertaken in order to establish the production of active lipopeptides against biodeteriogenic fungi from heritage assets. Analysis of the iturin operon revealed four open reading frames (ORFs) with the structural organisation of the peptide synthetases. Therefore, this work adopted a molecular procedure to access antifungal potential of LPP production by Bacillus strains in order to exploit the bioactive compounds synthesis as a green natural approach to be applied in biodegraded cultural heritage context. The results reveal that the bacterial strains with higher antifungal potential exhibit the same morphological and biochemical characteristics, belonging to the genera Bacillus. On the other hand, the higher iturinic genetic expression, for Bacillus sp. 3 and Bacillus sp. 4, is in accordance with the culture antifungal spectra. Accordingly, the adopted methodology combining antifungal screening and molecular data is represent a valuable tool for quick identification of iturin-producing strains, constituting an effective approach for confirming the selection of lipopeptides producer strains.

A first insight on the biodegradation of limestone - the case of the World Heritage Convent of Christ

The present study is a multidisciplinary approach applied to architectural stone materials of the Convent of Christ in Tomar (Portugal) in order to understand and mitigate the active decay processes. The structure and appearance of the stonework from the Convent of Christ are strongly affected by stains, biofilms and structural degradation. To investigate these phenomena, a multianalytical approach comprising X-ray microdiffraction, scanning electron microscopy, microRaman and microinfrared spectroscopy was applied to the examination of altered outdoor stone areas being detected calcium oxalates, carotenoids and microbial proliferation. The presence of these alteration products seems to be correlated with the microbial activity of bacteria, microalgae, cyanobacteria and filamentous fungi. This work showed that the application of complementary methodologies is an efficient strategy to characterise the stone decay, and constitute a starting point for successful conservation intervention plans that are urgent to ensure the preservation and safeguard of this emblematic monument.