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Titolo:
BIOACTIVITY OF ECHINODERM ETHANOLIC BODY-WALL EXTRACTS - AN ASSESSMENT OF MARINE BACTERIAL ATTACHMENT AND MACROINVERTEBRATE LARVAL SETTLEMENT
Autore:
BRYAN PJ; RITTSCHOF D; MCCLINTOCK JB;
Indirizzi:
UNIV ALABAMA,DEPT BIOL,1300 UNIV BLVD BIRMINGHAM AL 35294 DUKE UNIV,MARINE LAB BEAUFORT NC 28516
Titolo Testata:
Journal of experimental marine biology and ecology
fascicolo: 1-2, volume: 196, anno: 1996,
pagine: 79 - 96
SICI:
0022-0981(1996)196:1-2<79:BOEEBE>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
BALANUS-AMPHITRITE; CHEMICAL DEFENSE; NATURAL-PRODUCTS; BRYOZOAN LARVAE; AGENTS; FILMS; SURFACE; SPONGE; INHIBITION; EPIPHYTES;
Keywords:
ANTIFOULANT; BACTERIAL ATTACHMENT; ECHINODERM EXTRACTS; LARVAL SETTLEMENT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
73
Recensione:
Indirizzi per estratti:
Citazione:
P.J. Bryan et al., "BIOACTIVITY OF ECHINODERM ETHANOLIC BODY-WALL EXTRACTS - AN ASSESSMENT OF MARINE BACTERIAL ATTACHMENT AND MACROINVERTEBRATE LARVAL SETTLEMENT", Journal of experimental marine biology and ecology, 196(1-2), 1996, pp. 79-96

Abstract

The ethanolic body-wall extracts of 16 species of echinoderms from 16genera were screened for their ability to affect the attachment of the marine bacteria Deleya marina (Baumann) and Alteromonas luteo-violacea (Gauthier). Body-wall extracts were tested at concentrations which mimic mean natural tissue concentration, 3.0 mg/ml seawater, and four half-log dilutions of this initial concentration. The extracts of three echinoderm species caused significant inhibition of bacterial attachment, while extracts of eight species caused significant enhancement of attachment. The body-wall extract of the asteroid Goniaster tesselatus (Lamarck) displayed the most potent antimicrobial activity, completely inhibiting attachment of both bacterial species at a concentrationof 3.0 mg/ml seawater. The ethanolic extracts of 20 echinoderm species were also tested at a similar range of concentrations for their ability to affect the settlement of cyprid larvae of the barnacle Balanus amphitrite (Darwin), and coronate larvae of the bryozoan Bugula neritina (Linne). All echinoderm extracts inhibited settlement of both barnacle and bryozoan larvae at the highest concentration tested (3.0 mg/mlseawater). Eleven of the 20 echinoderms tested (13 asteroids, 3 holothuroids, 3 ophiuroids and a crinoid) had body-wall extracts that inhibited settlement of competent barnacle and bryozoan larvae at concentrations as low as 0.12 mg/ml seawater. These extracted echinoderm compounds may function as non-toxic or toxic antifoulants, and to promote bacterial surface colonization, which could be valuable to the organismsdisease resistance.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 15:48:16