TY - JOUR
T1 - Nonylphenol algal bioaccumulation and its effect through the trophic chain
AU - Correa-Reyes, Gabriel
AU - Viana, María Teresa
AU - Marquez-Rocha, Facundo J.
AU - Licea, Alexei F.
AU - Ponce, Elizabeth
AU - Vazquez-Duhalt, Rafael
N1 - Funding Information:
We thank Dr. Carlos Vazques and Dr. María del Pilar Sanchez for their contribution. We thank Raunel Tinoco for his technical assistance. This work was funded by the National Council for Science and Technology of Mexico (Grant FOSEMARNAT-2004-01-42).
PY - 2007/6
Y1 - 2007/6
N2 - Nonylphenol is a metabolic intermediate from the microbial transformation of detergents used worldwide. While nonylphenol shows some acute toxicity, it is also able to mimic important hormones resulting in the disruption of several processes by interfering with the signals that control the overall physiology of the organism. The effect of the pollutant nonylphenol (NP) through the trophic chain was studied. Microalgae Isochrysis galbana was able to bioconcentrate NP 6940 times, where 77% of initial NP (100 μg l-1) is accumulated intracellularly after 1-h incubation. Crustacean Artemia fransiscana showed 25% higher growth when fed with NP-rich algae. However, Artemia metabolized almost all NP ingested and only traces of NP could be found in the organism, eliminating future NP effects. Zebrafish (Brachydanio rerio) were affected by the presence of 171 μg g-1 of NP in the diet, showing higher levels of the hormone vitellogenin and lower levels of cytochrome P450 activity. These results showed that organisms placed in the first level of trophic chain are able to significantly bioconcentrate the pollutant and endocrine disruptor NP. These grassed organisms affect the growth of crustacean. Moreover, the organisms placed on the top of some trophic chains, such as fish, could be affected by the presence of NP in their food, in both the hormone levels and metabolic enzymes. This work shows that the environmental presence of NP should be considered as a risk for the organisms living in an ecosystem.
AB - Nonylphenol is a metabolic intermediate from the microbial transformation of detergents used worldwide. While nonylphenol shows some acute toxicity, it is also able to mimic important hormones resulting in the disruption of several processes by interfering with the signals that control the overall physiology of the organism. The effect of the pollutant nonylphenol (NP) through the trophic chain was studied. Microalgae Isochrysis galbana was able to bioconcentrate NP 6940 times, where 77% of initial NP (100 μg l-1) is accumulated intracellularly after 1-h incubation. Crustacean Artemia fransiscana showed 25% higher growth when fed with NP-rich algae. However, Artemia metabolized almost all NP ingested and only traces of NP could be found in the organism, eliminating future NP effects. Zebrafish (Brachydanio rerio) were affected by the presence of 171 μg g-1 of NP in the diet, showing higher levels of the hormone vitellogenin and lower levels of cytochrome P450 activity. These results showed that organisms placed in the first level of trophic chain are able to significantly bioconcentrate the pollutant and endocrine disruptor NP. These grassed organisms affect the growth of crustacean. Moreover, the organisms placed on the top of some trophic chains, such as fish, could be affected by the presence of NP in their food, in both the hormone levels and metabolic enzymes. This work shows that the environmental presence of NP should be considered as a risk for the organisms living in an ecosystem.
KW - Cytochrome P450
KW - Endocrine disruptor
KW - Growth effect
KW - Nonylphenol
KW - Vitellogenin
UR - http://www.scopus.com/inward/record.url?scp=34247205965&partnerID=8YFLogxK
U2 - 10.1016/j.chemosphere.2007.02.030
DO - 10.1016/j.chemosphere.2007.02.030
M3 - Artículo
C2 - 17397904
AN - SCOPUS:34247205965
SN - 0045-6535
VL - 68
SP - 662
EP - 670
JO - Chemosphere
JF - Chemosphere
IS - 4
ER -