title: EXPRESSION OF THE GEOSMIN SYNTHASE GENE IN THE CYANOBACTERIUM ANABAENA CIRCINALIS AWQC318(1).
abstract: The occurrence of taste and odor episodes attributed to geosmin continues to trouble water utilities worldwide, and only recently have advances been made in our fundamental understanding of the biochemical and genetic mechanisms responsible for the production of geosmin in microorganisms. For the first time, we have examined the expression of the geosmin synthase gene and corresponding geosmin production by Anabaena circinalis Rabenh. ex Bornet et Flahault AWQC318 under conditions of continuous light illumination and the removal of light as a stimulus and demonstrate that the expression of geosmin synthase appears to be constitutive under these conditions. The decrease in geosmin synthase transcription post maximum cell numbers and stationary phase suggests that a decrease in isoprenoid synthesis may occur before a decrease in the transcription of ribosomal units as the process of cell death is initiated.
authors.affiliation: Australian Water Quality Centre, South Australian Water Corporation, 250 Victoria Square, Adelaide, South Australia 5000, Australia Department of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia 5095, AustraliaSA Water Centre for Water Management and Reuse, University of South Australia, Mawson Lakes, South Australia 5095, Australia Australian Water Quality Centre, South Australian Water Corporation, 250 Victoria Square, Adelaide, South Australia 5000, Australia Department of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia 5095, Australia.
authors.forename: Steven
authors.initials: S
authors.lastname: Giglio
authors.affiliation: Australian Water Quality Centre, South Australian Water Corporation, 250 Victoria Square, Adelaide, South Australia 5000, Australia Department of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia 5095, AustraliaSA Water Centre for Water Management and Reuse, University of South Australia, Mawson Lakes, South Australia 5095, Australia Australian Water Quality Centre, South Australian Water Corporation, 250 Victoria Square, Adelaide, South Australia 5000, Australia Department of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia 5095, Australia.
authors.forename: Christopher P
authors.initials: CP
authors.lastname: Saint
authors.affiliation: Australian Water Quality Centre, South Australian Water Corporation, 250 Victoria Square, Adelaide, South Australia 5000, Australia Department of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia 5095, AustraliaSA Water Centre for Water Management and Reuse, University of South Australia, Mawson Lakes, South Australia 5095, Australia Australian Water Quality Centre, South Australian Water Corporation, 250 Victoria Square, Adelaide, South Australia 5000, Australia Department of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia 5095, Australia.
authors.forename: Paul T
authors.initials: PT
authors.lastname: Monis
keywords: expression; gene; geosmin; odor; taste