PMID- 27032597 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20160404 LR - 20160401 IS - 0022-3646 (Print) IS - 0022-3646 (Linking) VI - 45 IP - 6 DP - 2009 Dec TI - LOCALIZATION OF MICROCYSTIN SYNTHETASE GENES IN COLONIES OF THE CYANOBACTERIUM MICROCYSTIS USING FLUORESCENCE IN SITU HYBRIDIZATION(1). PG - 1400-4 LID - 10.1111/j.1529-8817.2009.00750.x [doi] AB - To better understand the production of microcystins (MCs) in Microcystis colonies, fluorescence in situ hybridization (FISH) methods were developed to detect DNA involved in the synthesis of these cyanobacterial hepatotoxins. Using colonies of Microcystis aeruginosa (Kutz.) Kutz. isolated from environmental blooms of cyanobacteria and from a colony-forming, MC-producing laboratory strain of Microcystis, amplified PCR products were observed, coincident with positive controls. The total MC content of individual colonies of Microcystis, determined by ELISA, showed a positive correlation with colony cross-sectional area. FISH analysis of Microcystis colonies gave high fluorescence in comparison to negative controls, indicating the presence of MC synthetase DNA (mcyA) in situ. FISH analysis for MC synthetase genes has the potential to be developed into an effective early warning tool for drinking and recreational water management. CI - (c) 2009 Phycological Society of America. FAU - Metcalf, James S AU - Metcalf JS AD - Division of Molecular Microbiology, College of Life Sciences, University of Dundee, Dundee, DD1 4HN, UK. FAU - Reilly, Marianne AU - Reilly M AD - Division of Molecular Microbiology, College of Life Sciences, University of Dundee, Dundee, DD1 4HN, UK. FAU - Young, Fiona M AU - Young FM AD - Division of Molecular Microbiology, College of Life Sciences, University of Dundee, Dundee, DD1 4HN, UK. FAU - Codd, Geoffrey A AU - Codd GA AD - Division of Molecular Microbiology, College of Life Sciences, University of Dundee, Dundee, DD1 4HN, UK. LA - eng PT - Journal Article DEP - 20090929 PL - United States TA - J Phycol JT - Journal of phycology JID - 9882935 OTO - NOTNLM OT - DNA OT - ELISA OT - Microcystis OT - PCR OT - fluorescence in situ hybridization OT - microcystin EDAT- 2009/12/01 00:00 MHDA- 2009/12/01 00:01 CRDT- 2016/04/02 06:00 PHST- 2016/04/02 06:00 [entrez] PHST- 2009/12/01 00:00 [pubmed] PHST- 2009/12/01 00:01 [medline] AID - 10.1111/j.1529-8817.2009.00750.x [doi] PST - ppublish SO - J Phycol. 2009 Dec;45(6):1400-4. doi: 10.1111/j.1529-8817.2009.00750.x. Epub 2009 Sep 29.