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Titolo:
Effects of sinus gland extract on mandibular organ size and methyl farnesoate synthesis in the crawfish
Autore:
Chaves, AR;
Indirizzi:
Texas A&M Univ, Dept Biol, College Stn, TX 77843 USA Texas A&M Univ College Stn TX USA 77843 t Biol, College Stn, TX 77843 USA
Titolo Testata:
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR AND INTEGRATIVE PHYSIOLOGY
fascicolo: 2, volume: 128, anno: 2001,
pagine: 327 - 333
SICI:
1095-6433(200102)128:2<327:EOSGEO>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
AMINO-ACID-SEQUENCE; CRAB LIBINIA-EMARGINATA; PROCAMBARUS-CLARKII; HOMARUS-AMERICANUS; SPIDER CRAB; JUVENILE-HORMONE; CRUSTACEAN; LOBSTER; CRAYFISH; PEPTIDE;
Keywords:
crawfish; crayfish; Crustacea; decapod; hormone; mandibular organ; methyl farnesoate; methyl transferase; Procambarus;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Chaves, AR 3410 Purdue St, Adelphi, MD 20783 USA 3410 Purdue St Adelphi MD USA 20783 St, Adelphi, MD 20783 USA
Citazione:
A.R. Chaves, "Effects of sinus gland extract on mandibular organ size and methyl farnesoate synthesis in the crawfish", COMP BIOC A, 128(2), 2001, pp. 327-333

Abstract

Eyestalk inhibition of farnesoic acid O-methyl transferase, which mediatesthe final step of methyl farnesoate synthesis in the mandibular organ of the crawfish Procambarus clarkii, was evaluated. Eyestalk removal caused a 20-100-fold increase in methyl transferase activity 8-12 days following surgery. The surge in activity following eyestalk removal in males was approximately 4 days ahead of that of the females. This was accompanied by a three-fold increase in mandibular organ protein content. Methyl transferase inhibition was accomplished in vitro after only a 15-min exposure to sinus glandextract. The inhibition obtained by injecting animals in vivo was noticeably attenuated 6 h following injection. The contrast of the short-lived inhibition with the growth and prolonged increase following eyestalk removal suggests that the eyestalk exerts both chronic and acute effects on the mandibular organ. (C) 2001 Elsevier Science Inc. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 22:48:01