Shrimps Palaemonetes varians were submitted to lethal and sublethal concentrations of ammonia in order to measure lethality, ATP and adenylate nucleotide levels, and adenylate energy charge (AEC) index. LC50 was of about 3 mg/liter of ammonia. Adenylate measurements were performed over a period of 14 days and for two different concentrations. A population submitted to 0.5 mg/liter of ammonia exhibited high survival and a marked consumption of ATP, whereas high mortality and disordered ATP metabolism are the characteristics of the population submitted to 3 mg/liter of ammonia. An homeostatic model was applied in order to explain the significance of the AEC signal. Here, AEC is proposed as a measure of the limits of active response of an organism to environmental stress. (C) 1996 Academic Press, Inc.

Effect of ammonia on survival and adenylate energy charge in the shrimp Palaemonetes varians / Marazza, D; Bornens, Ph; LeGal, P. - In: ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY. - ISSN 0147-6513. - STAMPA. - 34:2(2006), pp. 103-108. [10.1006/eesa.1996.0050]

Effect of ammonia on survival and adenylate energy charge in the shrimp Palaemonetes varians

MARAZZA, DIEGO;
2006

Abstract

Shrimps Palaemonetes varians were submitted to lethal and sublethal concentrations of ammonia in order to measure lethality, ATP and adenylate nucleotide levels, and adenylate energy charge (AEC) index. LC50 was of about 3 mg/liter of ammonia. Adenylate measurements were performed over a period of 14 days and for two different concentrations. A population submitted to 0.5 mg/liter of ammonia exhibited high survival and a marked consumption of ATP, whereas high mortality and disordered ATP metabolism are the characteristics of the population submitted to 3 mg/liter of ammonia. An homeostatic model was applied in order to explain the significance of the AEC signal. Here, AEC is proposed as a measure of the limits of active response of an organism to environmental stress. (C) 1996 Academic Press, Inc.
2006
Effect of ammonia on survival and adenylate energy charge in the shrimp Palaemonetes varians / Marazza, D; Bornens, Ph; LeGal, P. - In: ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY. - ISSN 0147-6513. - STAMPA. - 34:2(2006), pp. 103-108. [10.1006/eesa.1996.0050]
Marazza, D; Bornens, Ph; LeGal, P
File in questo prodotto:
Eventuali allegati, non sono esposti

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/608434
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 23
  • ???jsp.display-item.citation.isi??? 23
social impact