Research Output

Large-scale infection of the ascidian Ciona intestinalis by the gregarine Lankesteria ascidiae in an inland culture system

  An important way to keep transgenic and mutant lines of the ascidian Ciona intestinalis, a model system for e.g. genetic functions, in laboratories is via culturing systems. Here we report a disease of C. intestinalis observed in an inland culturing system. The disease, called ‘long feces syndrome,’ is expressed in affected animals by the following characteristic symptoms of the digestive system: (1) excretion of long and thin feces, (2) pale color of the stomach, and (3) congestion of the digestive tube by digested material. Severely diseased animals usually die within a week after the first symptoms occur, implying a high risk of this disease for ascidian culturing systems. The digestive tubes of the diseased animals are occupied by the gregarine apicomplexan parasite Lankesteria ascidiae, suggesting that large-scale infection by this parasite is the cause of long feces syndrome.

  • Type:

    Article

  • Date:

    19 November 2012

  • Publication Status:

    Published

  • Publisher

    Inter-Research

  • DOI:

    10.3354/dao02534

  • ISSN:

    0177-5103

  • Library of Congress:

    QR Microbiology

Citation

Mita, K., Kawai, N., Rueckert, S., & Sasakura, Y. (2012). Large-scale infection of the ascidian Ciona intestinalis by the gregarine Lankesteria ascidiae in an inland culture system. Diseases of Aquatic Organisms, 101(3), (185-195). doi:10.3354/dao02534. ISSN 0177-5103

Authors

Keywords

Aquatic Science; Ecology, Evolution, Behavior and Systematics

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