Discovery of the mineral brucite (magnesium hydroxide) in the tropical calcifying alga Polystrata dura (Peyssonneliales, Rhodophyta)

© 2015 Phycological Society of America.

Bibliographische Detailangaben
Veröffentlicht in:Journal of phycology. - 1966. - 51(2015), 3 vom: 17. Juni, Seite 403-7
1. Verfasser: Nash, Merinda C (VerfasserIn)
Weitere Verfasser: Russell, Bayden D, Dixon, Kyatt R, Liu, Minglu, Xu, Huifang
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2015
Zugriff auf das übergeordnete Werk:Journal of phycology
Schlagworte:Letter Research Support, Non-U.S. Gov't aragonite biomineralization brucite calcification crustose coralline algae
Beschreibung
Zusammenfassung:© 2015 Phycological Society of America.
Red algae of the family Peyssonneliaceae typically form thin crusts impregnated with aragonite. Here, we report the first discovery of brucite in a thick red algal crust (~1 cm) formed by the peyssonnelioid species Polystrata dura from Papua New Guinea. Cells of P. dura were found to be infilled by the magnesium-rich mineral brucite [Mg(OH)2 ]; minor amounts of magnesite and calcite were also detected. We propose that cell infill may be associated with the development of thick (> ~5 mm) calcified red algal crusts, integral components of tropical biotic reefs. If brucite infill within the P. dura crust enhances resistance to dissolution similarly to crustose coralline algae that infill with dolomite, then these crusts would be more resilient to future ocean acidification than crusts without infill
Beschreibung:Date Completed 02.08.2016
Date Revised 18.03.2016
published: Print-Electronic
GENBANK: GWS036244
Citation Status PubMed-not-MEDLINE
ISSN:1529-8817
DOI:10.1111/jpy.12299