The tetrapeptide APGW-amide induces somatic growth in Haliotis asinina Linnaeus

Chansela, Piyachat, Saitongdee, Porncharn, Stewart, Praphaporn, Soonklang, Nantawan, Hanna, Peter J., Nuurai, Prarinyaporn, Poomtong, Tanes and Sobhon, Prasert 2010, The tetrapeptide APGW-amide induces somatic growth in Haliotis asinina Linnaeus, Journal of shellfish research, vol. 29, no. 3, pp. 753-756.

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Title The tetrapeptide APGW-amide induces somatic growth in Haliotis asinina Linnaeus
Formatted title The tetrapeptide APGW-amide induces somatic growth in Haliotis asinina Linnaeus
Author(s) Chansela, Piyachat
Saitongdee, Porncharn
Stewart, Praphaporn
Soonklang, Nantawan
Hanna, Peter J.
Nuurai, Prarinyaporn
Poomtong, Tanes
Sobhon, Prasert
Journal name Journal of shellfish research
Volume number 29
Issue number 3
Start page 753
End page 756
Publisher National Shellfisheries Association, Inc.
Place of publication Hanover, Pa.
Publication date 2010-11
ISSN 0730-8000
Keyword(s) abalone
Haliotis asinina
neural ganglia
Summary APGW-amide is a well-known neurohormone modulator in several molluscs, and is involved in motor activities, feeding, and sexual behavior. In this report we show that injections of APGW-amide into 4-mo-old juvenile Haliotis asinina stimulate growth of body weight and, to a lesser degree, shell length. The injections were given at 0 (control), 20, and 200 ng/g body weight (BW), at 1-wk intervals for 14 wk. BW and shell length (SL) were measured every week, and growth rates were calculated. When compared with control animals, there was an approximate 2-fold increase in body growth rates of animals given 20 ng/g BW and 200 ng/g BW APGW-amide (P ≤ 0.05), whereas only 20 ng/g BW APGW-amide produced significantly greater SL than controls (P ≤ 0.05), with an approximate 1.2-fold increase. Using an immunoperoxidase technique, we showed the presence of APGW-amide in neuronal cells of the cerebral ganglia and nerve fibers. Overall, these data indicate that APGW-amide is an important neurohormone/neuromodulator in the nervous system of H. asinina and plays a role in controlling the body growth of H. asinina.
Language eng
Field of Research 060805 Animal Neurobiology
Socio Economic Objective 830103 Aquaculture Molluscs (excl. Oysters)
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
HERDC collection year 2010
Copyright notice ©2010, National Shellfisheries Association, Inc.
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