Marine Biotechnology

, Volume 7, Issue 2, pp 95–103

Development of Molecular Probes for Dinophysis (Dinophyceae) Plastid: A Tool to Predict Blooming and Explore Plastid Origin

  • Yoshiaki Takahashi
  • Kiyotaka Takishita
  • Kazuhiko Koike
  • Tadashi Maruyama
  • Takeshi Nakayama
  • Atsushi Kobiyama
  • Takehiko Ogata
Article

DOI: 10.1007/s10126-004-0482-5

Cite this article as:
Takahashi, Y., Takishita, K., Koike, K. et al. Mar Biotechnol (2005) 7: 95. doi:10.1007/s10126-004-0482-5

Abstract

Dinophysis are species of dinoflagellates that cause diarrhetic shellfish poisoning. We have previously reported that they probably acquire plastids from cryptophytes in the environment, after which they bloom. Thus monitoring the intracellular plastid density in Dinophysis and the source cryptophytes occurring in the field should allow prediction of Dinophysis blooming. In this study the nucleotide sequences of the plastid-encoded small subunit ribosomal RNA gene and rbcL (encoding the large subunit of RuBisCO) from Dinophysis spp. were compared with those of cryptophytes, and genetic probes specific for the Dinophysis plastid were designed. Fluorescent in situ hybridization (FISH) showed that the probes bound specifically to Dinophysis plastids. Also, FISH on collected nanoplankton showed the presence of probe-hybridized eukaryotes, possibly cryptophytes with plastids identical to those of Dinophysis. These probes are useful not only as markers for plastid density and activity of Dinophysis, but also as tools for monitoring cryptophytes that may be sources of Dinophysis plastids.

Keywords

Dinophysisfluorescent in situ hybridization (FISH)shellfish poisoningcryptophyteplastid

Copyright information

© Springer Science+Business Media, Inc. 2005

Authors and Affiliations

  • Yoshiaki Takahashi
    • 1
  • Kiyotaka Takishita
    • 2
  • Kazuhiko Koike
    • 1
  • Tadashi Maruyama
    • 2
  • Takeshi Nakayama
    • 3
  • Atsushi Kobiyama
    • 1
  • Takehiko Ogata
    • 1
  1. 1.School of Fisheries SciencesKitasato UniversitySanriku, OfunatoJapan
  2. 2.Marine Biotechnology InstituteHeita KamaishiJapan
  3. 3.Institute of Biological SciencesUniversity of TsukubaTennoh-dai, TsukubaJapan
  4. 4.Extremobiosphere Research Center, Research Program for Marine Biology and EcologyJapan Agency for Marine-Earth Science and TechnologyNatsushimaJapan