Microbial euendoliths (true borer) cyanobacteria are carbonate-boring microorganisms found in modern and ancient marine environments. Modern euendoliths include a wide range of prokaryotes as well as eukaryotes, which have been reported world-wide. The importance of euendolithic cyanobacteria concerns their role in bio-erosion of calcium carbonate substrates and as ecological indicators of shallow, tropical and subtropical marine environments. Arabian Gulf ooids from four sites along the east coast of Saudi Arabia have been bored and inhabited by several species of euendolithic cyanobacteria. This assemblage of different species exists simultaneously within the same ooid grain. Comparisons of 1989 and 1992 data reveal a drastic reduction in active euendoliths, and the average numbers of colonies in these ooids. This study reveals the harmful effect of the 1991 oil spill on these unique microorganisms residing in these ooids.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1046/j.1462-2920.2002.00276.x | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Global distribution and diversity of marine euendolithic cyanobacteria.
J Phycol
December 2022
Coastal Research Group, Department of Zoology and Entomology, Rhodes University, Makhanda (Grahamstown), South Africa, 6139.
Euendolithic, or true-boring, cyanobacteria actively erode carbonate-containing substrata in a wide range of environments and pose significant risks to calcareous marine fauna. Their boring activities cause structural damage and increase susceptibility to disease and are projected to only intensify with global climate change. Most research has, however, focused on tropical coral systems, and limited information exists on the global distribution, diversity, and substratum specificity of euendoliths.
View Article and Find Full Text PDFEuendolithic Cyanobacteria and Proteobacteria Together Contribute to Trigger Bioerosion in Aquatic Environments.
Front Microbiol
July 2022
State Key Laboratory of Marine Resource Utilization in South China Sea, College of Oceanology, Hainan University, Haikou, China.
Shellfish, mussels, snails, and other aquatic animals, which assimilate limestone (calcium carbonate, CaCO) to build shells and skeletons, are effective carbon sinks that help mitigate the greenhouse effect. However, bioerosion, the dissolution of calcium carbonate and the release of carbon dioxide, hinders carbon sequestration process. The bioerosion of aquatic environments remains to be elucidated.
View Article and Find Full Text PDFSuccession and Colonization Dynamics of Endolithic Phototrophs within Intertidal Carbonates.
Microorganisms
February 2020
School of Life Sciences, Arizona State University, Tempe, 85282 AZ, USA.
Photosynthetic endolithic communities are common in shallow marine carbonates, contributing significantly to their bioerosion. Cyanobacteria are well known from these settings, where a few are euendoliths, actively boring into the virgin substrate. Recently, anoxygenic phototrophs were reported as significant inhabitants of endolithic communities, but it is unknown if they are euendoliths or simply colonize available pore spaces secondarily.
View Article and Find Full Text PDFCharacterization of black patina from the Tiber River embankments using Next-Generation Sequencing.
PLoS One
April 2020
Center for Life NanoScience@Sapienza, Istituto Italiano di Tecnologia, Rome, Italy.
Black patinas are very common biological deterioration phenomena on lapideous artworks in outdoor environments. These substrates, exposed to sunlight, and atmospheric and environmental agents (i.e.
View Article and Find Full Text PDFCarbon fixation from mineral carbonates.
Nat Commun
October 2017
School of Life Sciences, Arizona State University, Tempe, AZ, 85287, USA.
Article Synopsis
- Photoautotrophs typically use dissolved or atmospheric carbon for growth, but recent findings indicate that certain cyanobacteria can directly utilize solid carbonate minerals for carbon.
- The cyanobacterium Mastigocoleus testarum has been shown to derive most of its carbon from excavating minerals when dissolved carbon is scarce, supporting the idea of mineral-sourced autotrophy.
- Natural communities of cyanobacteria in marine carbonate environments show carbon signatures indicative of this process, suggesting a significant global impact of this mineral-associated carbon fixation since ancient times.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!