Journal
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
Volume 157, Issue -, Pages 431-440Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ecoenv.2018.04.005
Keywords
Bisphenol A; Cymodocea nodosa; Cytoskeleton disruption; Leaf growth; Seagrass; Stress biomarkers; Toxicity
Categories
Funding
- State Scholarships Foundation (IKY)
- program: Development of Human Resources, Education and Lifelong Learning
Ask authors/readers for more resources
Bisphenol A (BPA) is an emerging pollutant of environmental concern, classified as moderately toxic and toxic, causing adverse effects on aquatic biota. Although information about BPA toxicity on aquatic fauna is available, the data about BPA effects on aquatic flora remain scarce, missing for marine macrophytes. The effects of environmentally relevant BPA concentrations (ranging from 0.03 to 3 mu g L-1) on juvenile leaf elongation and the cytoskeleton (microtubules, MTs and actin filaments, AFs) were studied in the seagrass Cymodocea nodosa for 1-10 days. The suitability of cytoskeleton disturbance and leaf elongation impairment as biomarkers for BPA stress were tested. The highest BPA concentrations (0.3, 0.5, 1 and 3 mu g L-1) affected significantly leaf elongation from the onset of the experiment, while defects of the cytoskeleton were observed even at lower concentrations. In particular, MTs were initially disrupted (i.e. lowest observed effect concentrations, LOECs) at 0.1 mu g L-1, while AFs were damaged even at 0.03 mu g L-1. AFs appeared thus to be more sensitive to lower BPA concentrations, while there was a correlation between leaf elongation impairment and MT defects. Thus, AF damages, MT disruption and leaf elongation impairment in C. nodose, in this particular order, appear to be sensitive biomarkers of BPA stress, at the above environmentally relevant BPA concentrations.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available