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Development of a real-time PCR Probe for quantification of the heterotrophic dinoflagellate Cryptoperidiniopsis brodyi (Dinophyceae) in environmental samples

Citation

Park, TG and de Salas, MF and Bolch, CJS and Hallegraeff, GM, Development of a real-time PCR Probe for quantification of the heterotrophic dinoflagellate Cryptoperidiniopsis brodyi (Dinophyceae) in environmental samples, Applied and Environmental Microbiology, 73, (8) pp. 2552-2560. ISSN 0099-2240 (2007) [Refereed Article]

DOI: doi:10.1128/AEM.02389-06

Abstract

A TaqMan format real-time PCR probe was developed against the internal transcribed spacer 2 ribosomal DNA region for the specific detection and quantification of Cryptoperidiniopsis brodyi in environmental samples. The assay specificity was confirmed by testing against related dinoflagellates and verified by sequencing PCR amplicons from natural water samples. Phylogenetic analysis of the sequenced environmental samples also showed that this assay is specific to C. brodyi. The C. brodyi-specific assay was used in conjunction with Pfiesteria piscicida- and Pfiesteria shumwayae-specific real-time PCR assays to investigate the temporal variations of C. brodyi, P. piscicida, and P. shumwayae abundance in the Derwent estuary, Tasmania. The 18-month field survey from November 2004 to April 2006 revealed that C. brodyi occurred in all seasons at very low densities, mostly below 25 cells liter-1, with higher abundance (maximum, 112 cells liter-1) in April and May. P. piscicida was detected only once, in May 2005 at 60 cells liter-1. P. shumwayae was not detected during the survey. Copyright © 2007, American Society for Microbiology. All Rights Reserved.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Plant Biology
Research Field:Phycology (incl. Marine Grasses)
Objective Division:Environment
Objective Group:Flora, Fauna and Biodiversity
Objective Field:Antarctic and Sub-Antarctic Flora, Fauna and Biodiversity
Author:Park, TG (Mr Taie Park)
Author:de Salas, MF (Dr Miguel de Salas)
Author:Bolch, CJS (Dr Christopher Bolch)
Author:Hallegraeff, GM (Professor Gustaaf Hallegraeff)
ID Code:46669
Year Published:2007
Web of Science® Times Cited:26
Deposited By:Plant Science
Deposited On:2007-08-01
Last Modified:2008-05-26
Downloads:0

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