期刊
JOURNAL OF HERPETOLOGY
卷 51, 期 2, 页码 270-273出版社
SOC STUDY AMPHIBIANS REPTILES
DOI: 10.1670/16-126
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资金
- U.S. Department of Agriculture [NRI 2008-00622 20, 2008-01785, 2013-04712]
- U.S. Environmental Protection Agency [CAREER 83518801]
- National Science Foundation [EF-1241889]
- National Institutes of Health [R01GM109499, R01TW010286]
- University of Tampa
To determine whether the herbicide, atrazine, affects the stress hormone corticosterone, we exposed Osteopilus septentrionalis (Cuban Treefrog) tadpoles to four concentrations of atrazine and two controls (water and acetone) for three time durations (4, 28, and 100 h). Atrazine concentration, but not exposure duration, had significant nonlinear effects on whole-body corticosterone. Relative to controls, intermediate concentrations of atrazine (10.2 and 50.6 mu g/L) tended to lower corticosterone, whereas the lowest (0.1 mu g/L) and highest atrazine concentrations (102 mu g/L) elevated corticosterone. These results indicate that atrazine exposure might dysregulate corticosterone, a hormone integral to vertebrate immunity, neurogenesis, and health.
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