First report of anatoxin-a producing cyanobacteria in Australia illustrates need to regularly up-date monitoring strategies in a shifting global distribution
- Author(s)
- John, N; Baker, L; Ansell, BRE; Newham, S; Crosbie, ND; Jex, AR;
- Details
- Publication Year 2019-07-26,Volume 9,Issue #1,Page 10894
- Journal Title
- Scientific Reports
- Publication Type
- Journal Article
- Abstract
- Routine monitoring of toxic cyanobacteria depends on up-to-date epidemiological information about their distribution. In Australia, anatoxin producing cyanobacteria are not regularly tested for and thought to be rare if not absent from the continent. Our study investigated the presence of anatoxin-a (ATX-a) producing cyanobacteria in surface water samples (n = 226 from 67 sampling locations) collected from 2010 to 2017 across the state of Victoria, Australia. We (1) detected the presence and distribution of anaC (anatoxin-a synthetase C) gene sequences previously associated with various cyanobacteria, including Cuspidothrix issatschenkoi, Aphanizomenon sp., D. circinale, Anabaena sp., and Oscillatoria sp., from 31 sampling locations, and (2) determined the concentration of ATX-a in samples tested using ELISA, in two instances detected at >4 microg . L(-1). These data present the first confirmation of ATX-a producers in Australia. Our study indicates that ATX-a should be included in regular testing of cyanobacterial blooms in Australia and highlights the importance of regular investigation of the distributions of toxic cyanobacteria worldwide, particularly amid the known expanding distribution of many cyanobacterial taxa in a period of increased eutrophication and rising surface water temperatures.
- Publisher
- Sprnger
- Research Division(s)
- Population Health And Immunity
- PubMed ID
- 31350418
- Publisher's Version
- https://doi.org/10.1038/s41598-019-46945-8
- Open Access at Publisher's Site
https://doi.org/10.1038/s41598-019-46945-8- NHMRC Grants
- NHMRC/1126395,
- Terms of Use/Rights Notice
- Refer to copyright notice on published article.
Creation Date: 2019-08-13 12:35:12
Last Modified: 2019-08-13 01:04:27