Time-resolved microbial guild responses to tidal cycling in a coastal acid-sulfate system
Yu-Chen Ling, Han Ming Gan, Michelle Bush, Richard Bush, John W Moreau
ENVIRONMENTAL CHEMISTRY | CSIRO PUBLISHING | Published : 2018
Environmental context Microbes play key roles in controlling acidification and metal toxicity in coastal acid-sulfate soils. We characterised the time-dependent metabolic activities of abundant and rare taxa in acidifying tidal wetlands and showed that rare taxa exhibiting higher activity may exert significant influence on iron- and sulfur-cycling. Our findings yield new insights into the drivers and timing of iron- and sulfur-cycling in coastal acid-sulfate systems. Abstract Tidal inundation has been trialled as a remediation strategy for coastal acid-sulfate soil (CASS) environments. Microbial community structure and activity are hypothesised to play key roles in this process, but remain p..View full abstract
Awarded by Australian Research Council
The authors acknowledge funding to JWM from the Australian Research Council (grant no. LP110100732), and funding to Y-CL from the University of Melbourne Albert Shimmin Memorial Fund. We thank Assoc. Prof. Kathryn Holt, and Drs Shu Mei Teo and Andre Mu (The University of Melbourne) for access to and assistance with computational biology resources, and Mr. Steve Wilbraham (Queensland Government) for invaluable assistance with fieldwork and sampling at the East Trinity field site.