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Distribution of the Harmful Bloom-Forming Cyanobacterium, Microcystis aeruginosa, in 88 Freshwater Environments across Japan
- Source :
- Microbes and Environments
- Publication Year :
- 2020
- Publisher :
- Japanese Society of Microbial Ecology / Japanese Society of Soil Microbiology / Taiwan Society of Microbial Ecology / Japanese Society of Plant Microbe Interactions / Japanese Society for Extremophiles, 2020.
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Abstract
- Microcystis aeruginosa was quantitatively surveyed in 88 freshwater environments across Japan within 3 weeks in 2011. In order to clarify the distribution pattern of M. aeruginosa at the intra-species level, three major genotypes, which were defined by 16S-23S rRNA inter-transcribed-spacer (ITS) regions, were selectively detected using quantitative real-time PCR assays. Of the 68 sites at which the Microcystis intergenic-spacer region of the phycocyanin (IGS-PC) gene was detected, the M. aeruginosa morphotype-related genotype (MG1) dominated in 41 sites, followed by the non-toxic M. wesenbergii-related genotype (MG3). A correlation analysis showed that total nitrogen and phosphate positively correlated with the abundance of IGS-PC, which positively correlated with microcystin synthetase gene abundance. A redundancy analysis of genotype compositions showed that pH positively correlated with the dominance of MG3 and negatively correlated with MG1, i.e., both toxic and non-toxic genotypes. Our survey of Microcystis populations over a wide area revealed that MG1 is a dominant genotype in Japan.
- Subjects :
- Microcystis
Genotype
Nitrogen
Harmful Algal Bloom
Phycocyanin
Fresh Water
Hydrogen-Ion Concentration
wide area distribution
genotype composition
Phosphates
16S–23S ITS
qPCR
Bacterial Proteins
Japan
DNA, Ribosomal Spacer
Regular Paper
Environmental Microbiology
Microcystis aeruginosa
Peptide Synthases
Subjects
Details
- Language :
- English
- ISSN :
- 13474405 and 13426311
- Volume :
- 35
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Microbes and Environments
- Accession number :
- edsair.pmid..........1e679cb5c6c4357f6c42dce43ad0da42