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Titolo:
Accumulation of nitrite in the tissues of Penaeus monodon exposed to elevated ambient nitrite after different time periods
Autore:
Cheng, SY; Chen, JC;
Indirizzi:
Natl Taiwan Ocean Univ, Dept Aquaculture, Keelung 202, Taiwan Natl Taiwan Ocean Univ Keelung Taiwan 202 uaculture, Keelung 202, Taiwan
Titolo Testata:
ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
fascicolo: 2, volume: 39, anno: 2000,
pagine: 183 - 192
SICI:
0090-4341(200008)39:2<183:AONITT>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
ACID-BASE-BALANCE; SALMO-GAIRDNERI; OXYGEN-AFFINITY; ASTACUS-ASTACUS; ION REGULATION; FRESH-WATER; HEMOLYMPH; ELECTROLYTE; TOXICITY; CRAYFISH;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
34
Recensione:
Indirizzi per estratti:
Indirizzo: Chen, JC Natl Taiwan Ocean Univ, Dept Aquaculture, Keelung 202, Taiwan Natl Taiwan Ocean Univ Keelung Taiwan 202 , Keelung 202, Taiwan
Citazione:
S.Y. Cheng e J.C. Chen, "Accumulation of nitrite in the tissues of Penaeus monodon exposed to elevated ambient nitrite after different time periods", ARCH ENV C, 39(2), 2000, pp. 183-192

Abstract

Penaeus monodon (29.42 +/- 0.39 g) that had been exposed individually to 0.001 (control), 0.07, 0.36, 0.72, and 1.44 mM nitrite in 25 ppt sea water were examined for the nitrite accumulation in hemolymph, gill, eyestalk, heart, foregut, midgut, hepatopancreas, and muscle and nitrite uptake after 1,3, 6, 12, 24, and 48 h, respectively. Concentration of nitrite in the tissues increased directly with ambient nitrite and exposure time except for muscle. P. monodon following 48-h exposure to 0.36 mM nitrite, nitrite concentration progressively increased from the muscle (0.40 mu mol/g), hepatopancreas (1.24 mu mol/g), gill (1.82 mu mol/g), foregut (2.03 mu mol/g), hemolymph (0.39 mu mol/mL), heart (2.43 mu mol/g), eyestalk (3.07 mu mol/g), and to the midgut (4.14 mu mol/g), which is 1.1, 3.4, 5.0, 5.6, 6.6, 6.8, 8.5, and 11.4 times the ambient nitrite concentration, respectively. It is concluded that when P. monodon is exposed to ambient nitrite, nitrite is immediately incorporated in the hemolymph and midgut via branchial chloride uptakeof NO2-, and accumulated in the tissues.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/12/20 alle ore 00:22:41