Microbial ecology of Thailand tsunami and non-tsunami affected terrestrials.
The effects of tsunamis on microbial ecologies have been ill-defined, especially in Phang Nga province, Thailand. This ecosystem was catastrophically impacted by the 2004 Indian Ocean tsunami as well as the 600 year-old tsunami in Phra Thong island, Phang Nga province. No study has been conducted to elucidate their effects on microbial ecology. This study represents the first to elucidate their effects on microbial ecology. We utilized metagenomics with 16S and 18S rDNA-barcoded pyrosequencing to obtain prokaryotic and eukaryotic profiles for this terrestrial site, tsunami affected (S1), as well as a parallel unaffected terrestrial site, non-tsunami affected (S2). S1 demonstrated unique microbial community patterns than S2. The dendrogram constructed using the prokaryotic profiles supported the unique S1 microbial communities. S1 contained more proportions of archaea and bacteria domains, specifically species belonging to Bacteroidetes became more frequent, in replacing of the other typical floras like Proteobacteria, Acidobacteria and Basidiomycota. Pathogenic microbes, including Acinetobacter haemolyticus, Flavobacterium spp. and Photobacterium spp., were also found frequently in S1. Furthermore, different metabolic potentials highlighted this microbial community change could impact the functional ecology of the site. Moreover, the habitat prediction based on percent of species indicators for marine, brackish, freshwater and terrestrial niches pointed the S1 to largely comprise marine habitat indicating-species.
Department of Microbiology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand.
Naraporn
N
Somboonna
Genome Institute, National Center for Genetic Engineering and Biotechnology, Pathumthani, Thailand.
Alisa
A
Wilantho
Department of Geology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand.
Kruawun
K
Jankaew
Department of Pharmacology, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand.
Anunchai
A
Assawamakin
Genome Institute, National Center for Genetic Engineering and Biotechnology, Pathumthani, Thailand.
Duangjai
D
Sangsrakru
Genome Institute, National Center for Genetic Engineering and Biotechnology, Pathumthani, Thailand.
Sithichoke
S
Tangphatsornruang
Genome Institute, National Center for Genetic Engineering and Biotechnology, Pathumthani, Thailand.
Sissades
S
Tongsima
D044822:Biodiversity; D055669:Ecological and Environmental Phenomena; D017753:Ecosystem; D056186:Metagenomics; D064307:Microbiota; D013785:Thailand; D057192:Tsunamis