Effects of L-proline on swimming parameters of Daphnia magna subjected to heat stress.
Daphnia magna
Heat stress protection
L-proline
Swimming behavior
Journal
Journal of thermal biology
ISSN: 0306-4565
Titre abrégé: J Therm Biol
Pays: England
ID NLM: 7600115
Informations de publication
Date de publication:
Aug 2019
Aug 2019
Historique:
received:
06
02
2019
revised:
27
05
2019
accepted:
30
06
2019
entrez:
31
8
2019
pubmed:
31
8
2019
medline:
29
1
2020
Statut:
ppublish
Résumé
L-proline (L-PROL) is an essential amino acid, a constituent of many proteins and the osmoprotective molecule produced and accumulated in higher plants and some freshwater microalgae in response to various environmental stressors. Knowledge on thermoprotective effects of this amino acid on freshwater invertebrates is very scarce. Therefore the aim of our study was to determine the effect of L-PROL at concentrations: 10 mg/L, 20 mg/L and 50 mg/L on swimming behavior (immobilization, swimming track density, swimming speed, turning ability) of Daphnia magna subjected to temperatures: 22 °C, 35 °C and 38 °C. We found that L-PROL elevated all the measured swimming parameters at 22 °C when compared to the untreated crustaceans. Furthermore, L-PROL alleviated heat-induced inhibition of these parameters in the experimental animals subjected to 35 °C. The results suggest that L-PROL stimulates swimming performance and alleviates alterations of swimming parameters induced by heat stress in D. magna. Moreover, these findings may support the hypothesis that in natural conditions, L-PROL may protect crustaceans against thermal stress.
Identifiants
pubmed: 31466748
pii: S0306-4565(19)30067-1
doi: 10.1016/j.jtherbio.2019.06.012
pii:
doi:
Substances chimiques
Proline
9DLQ4CIU6V
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
154-163Informations de copyright
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