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PCR-Based Ribosomal DNA Detection Technique for Microalga (Heterosigma carterae) Causing Red Tide and Its Application to a Biosensor Using Labeled Probe

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Abstract

A technique for detecting Raphidophycean, a bloom-forming genus of algae, was developed using a specific DNA probe. The design of the probe was based on a sequence polymorphism within the small subunit (SSU) ribosomal RNA gene (rDNA) of this strain by using fluorescence polarization (FP) analysis and the BIAcore 2000 biosensor, which utilized surface plasmon resonance (SPR). The specific sequence in SSU rDNA for Heterosigma carterae was determined by sequence data analysis. One pair of polymerase chain reaction (PCR) probes was designed for use in making the identification. H. carterae SSU rDNA was amplified by PCR. Using a fluoroscein isothiocyanate–labeled or biotin-labeled oligonucleotide probe, the PCR-amplified rDNA was selectively detected as an FP-intensity change via FP analysis or as a resonance-unit change via SPR. Although total time for final detection after sampling was within 3 hours, specific rDNA could be detected within 10 minutes after PCR through these detection methods.

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Authors and Affiliations

  1. Research Centre for Advanced Science and Technology, University of Tokyo, Tokyo, Japan

    Ryoichi Asai, Yoko Nomura, Kazunori Ikebukuro & Isao Karube

  2. National Institute for Advanced Interdisciplinary Research, Agency of Industrial Science and Technology, Ibaragi, Japan

    Ryoichi Asai & Chikashi Nakamura

  3. Faculty of Science, Department of Chemical and Biological Science, Japan Women’s University, Tokyo, Japan

    Kozue Ootani, Yoshiko Arikawa & Jun Miyake

Authors
  1. Ryoichi Asai
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  2. Kozue Ootani
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  3. Yoko Nomura
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  4. Chikashi Nakamura
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  5. Kazunori Ikebukuro
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  6. Yoshiko Arikawa
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  7. Jun Miyake
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  8. Isao Karube
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Corresponding author

Correspondence to Ryoichi Asai.

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Asai, R., Ootani, K., Nomura, Y. et al. PCR-Based Ribosomal DNA Detection Technique for Microalga (Heterosigma carterae) Causing Red Tide and Its Application to a Biosensor Using Labeled Probe. Mar. Biotechnol. 5, 417–423 (2003). https://doi.org/10.1007/s10126-002-0081-2

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  • DOI: https://doi.org/10.1007/s10126-002-0081-2

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