التفاصيل البيبلوغرافية
| العنوان: |
Symbiotic cooperation between freshwater rock-boring bivalves and microorganisms promotes silicate bioerosion. |
| المؤلفون: |
Daval, Damien, Guyot, François, Bolotov, Ivan N., Vikhrev, Ilya V., Kondakov, Alexander V., Lyubas, Artem A., Bychkov, Andrey Y., Yapaskurt, Vasily O., Cabié, Martiane, Pokrovsky, Oleg S. |
| المصدر: |
Scientific Reports; 8/7/2020, Vol. 10 Issue 1, p1-10, 10p |
| مصطلحات موضوعية: |
SOCIOECONOMICS, ECONOMIC impact, MICROORGANISMS, SHIPWORMS, MARINE ecology |
| مستخلص: |
Bioerosion is a process with a high socio-economic impact that contributes to coastal retreat, and likely to increase with climate change. Whereas limestone bioerosion is well explained by a combination of mechanical and chemical pathways, the bioerosion mechanisms of silicates, which are harder and chemically more resistant, remain elusive. Here we investigated the interface between siltstone and freshwater rock-boring bivalves Lignopholas fluminalis (Bivalvia: Pholadidae). Remains of a microbial biofilm were observed only in the poorly consolidated part of the rock within the macroborings created by bivalves. Secondary Mn-bearing minerals identified in the biofilm suggest that microbes promoted silicate rock weathering by dissolving Mn-rich chlorites. Moreover, hard mineral debris found in a biofilm attached to the shells likely contributed to the abrasion of the rock substrate. Thus, beyond the classical view of chemical and/or mechanical action(s) of macroborers, silicate bioerosion may also be facilitated by an unexpected synergistic association between macro- and microorganisms. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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