Skip Navigation

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrow Search for citing articles in:
ISI Web of Science (1)
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by KIMURA, S.
Right arrow Articles by SAKURAI, Y.
Right arrow Search for Related Content
PubMed
Right arrow Articles by KIMURA, S.
Right arrow Articles by SAKURAI, Y.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

J. Moll. Stud. (2004), 70, 117-121
© The Malacological Society of London 2004

CHEMICAL PROPERTIES OF EGG-MASS MUCIN COMPLEXES OF THE OMMASTREPHID SQUID TODARODES PACIFICUS

SHIGERU KIMURA1, YUMI HIGUCHI1, MASAKI AMINAKA1, JOHN R. BOWER2 and YASUNORI SAKURAI3

1Tokyo University of Fisheries, 4-5-7 Konan, Minato-ku, Tokyo 108-8477, Japan;2Northern Biosphere Field Science Center, Hokkaido University, 3-1-1 Minato-cho, Hakodate, Hokkaido, 041-8611, Japan; and 3Graduate School of Fisheries Sciences, Hokkaido University, 3-1-1 Minato-cho, Hakodate, Hokkaido 041-8611, Japan

Correspondence: S. Kimura; e-mail: kimus{at}tokyo-u-fish.ac.jp

This paper describes the properties of egg-mass glycoproteins from the Japanese common squid Todarodes pacificus (Steenstrup, 1880) and provides chemical evidence for the role of a nidamental mucosubstance in the formation of egg masses. Samples were collected from the surface layer and the interior jelly of an egg mass spawned in captivity, and the interior jelly was separated into fibrils and the liquid portion of the jelly. Mucosubstances in the nidamental and oviducal glands of maturing squid were then isolated and compared with those of each part of the egg mass. The surface layer and the interior fibrils were found to be composed of distinct types of mucin complexes and to have originated from the water-soluble and insoluble fractions of nidamental mucosubstance, respectively. Oviducal mucosubstance, however, appeared to play no role in the formation of the fibrils. These results suggest the egg-mass surface layer is derived from the water-soluble fraction of the nidamental mucosubstance, and the fibrils within the mass are derived from the insoluble fraction of the mucosubstance.

(Received 17 February 2003; accepted 5 August 2003)


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.