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Retention of transcriptionally active cryptophyte nuclei by the ciliate Myrionecta rubra

Author

Listed:
  • Matthew D. Johnson

    (University of Maryland Center for Environmental Science, Horn Point Laboratory
    Rutgers University)

  • David Oldach

    (University of Maryland, School of Medicine)

  • Charles F. Delwiche

    (University of Maryland – College Park)

  • Diane K. Stoecker

    (University of Maryland Center for Environmental Science, Horn Point Laboratory)

Abstract

Red tides: the borrowers The 'red-tide' organism Myrionecta rubra has been a curiosity to scientists since a red bloom was spotted in the Pacific during Darwin's voyage on Beagle. As the only truly phototrophic ciliate — using light as its principal source of energy — it was thought to possess a permanent endosymbiont capable of photosynthesis. Not so, according to a new study. M. rubra can steal and temporarily retain a nucleus from a specific prey, the cryptophyte alga Geminigera cryophila. The hijacked nucleus is now shown to retain its function, for 30 days or so, and to be used to regulate stolen chloroplasts and mitochondria. This 'organelle farming' lifestyle dubbed 'karyoklepty' may be a powerful evolutionary strategy for acquiring biochemical potential, and a possible model for chloroplast acquisition by eukaryotes.

Suggested Citation

  • Matthew D. Johnson & David Oldach & Charles F. Delwiche & Diane K. Stoecker, 2007. "Retention of transcriptionally active cryptophyte nuclei by the ciliate Myrionecta rubra," Nature, Nature, vol. 445(7126), pages 426-428, January.
    • Handle: RePEc:nat:nature:v:445:y:2007:i:7126:d:10.1038_nature05496
    DOI: 10.1038/nature05496
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    Cited by:

    1. Toshiyuki Takahashi, 2017. "Life Cycle Analysis of Endosymbiotic Algae in an Endosymbiotic Situation with Paramecium bursaria Using Capillary Flow Cytometry," Energies, MDPI, vol. 10(9), pages 1-14, September.
    2. Long Si & Shumeng Zhang & Xiaodong Su & Mei Li, 2024. "Structural basis for the distinct core-antenna assembly of cryptophyte photosystem II," Nature Communications, Nature, vol. 15(1), pages 1-15, December.

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