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Biol Bull 176: 57-62. (February 1989)
© 1989 Marine Biological Laboratory
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The Intrinsic Origin of Bioluminescence in the Ascidian, Clavelina miniata

MASAKAZU AOKI 1, KOICHIRO HASHIMOTO 1, and HIROSHI WATANABE 1

1 Shimoda Marine Research Center, Shimoda, Shizuoka 415, Japan

Bioluminescence was observed in the ascidian, Clavelina miniata (Tunicata: Ascidiacea). This is the first report of luminescence in ascidians. A green light was evoked by mechanical stimulation, by increasing the concentration of K+ ions, or by hypotonic conditions. The source of the light was a type of tunic cell (cell type II). This luminescence is attributed to an intrinsic system, not to bacterial symbionts.

Submitted on March 30, 1988
Accepted on November 21, 1988






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Copyright © 1989 by the Marine Biological Laboratory.