Effects of Cadmium and Zinc on the Gamete Viability, Fertilization, and Embryonic Development of Tripneustes gratilla (Linnaeus)
Joint Authors
Bitacura, Jayzon G.
Tualla, Ivan Patrick B.
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-04-20
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Heavy metals are frequently reported for their mutagenic and teratogenic effects on benthic organisms.
Thus, this study aimed to determine the toxicity of cadmium (Cd) and zinc (Zn) in the gametes of T.
gratilla and to compare its fertilization and embryonic development under the highest nongametotoxic concentrations of these heavy metals.
Gamete viability of T.
gratilla under CdCl2 and ZnSO4 treatments was assayed through resazurin reduction test (RRT) and was confirmed through gamete morphology assay.
ZnSO4 was more toxic to T.
gratilla gametes than CdCl2 and egg cells were more sensitive to both than the sperm cells.
Higher concentrations of CdCl2 and ZnSO4 induced gamete apoptosis and necrosis while highest nongametotoxic concentrations were determined at 1 × 10−3 M and 1 × 10−4 M, respectively, and were used in an in vitro fertilization and embryonic development experiment.
ZnSO4 treatment inhibited fertilization more than CdCl2 and yielded more deformed embryos, while both induced abnormalities and hindered further embryonic development.
This study gives the first report on the specific concentrations of Cd and Zn that are toxic to T.
gratilla gametes and has confirmed the teratogenic effects of these heavy metals.
American Psychological Association (APA)
Tualla, Ivan Patrick B.& Bitacura, Jayzon G.. 2016. Effects of Cadmium and Zinc on the Gamete Viability, Fertilization, and Embryonic Development of Tripneustes gratilla (Linnaeus). Scientifica،Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1117902
Modern Language Association (MLA)
Tualla, Ivan Patrick B.& Bitacura, Jayzon G.. Effects of Cadmium and Zinc on the Gamete Viability, Fertilization, and Embryonic Development of Tripneustes gratilla (Linnaeus). Scientifica No. 2016 (2016), pp.1-10.
https://search.emarefa.net/detail/BIM-1117902
American Medical Association (AMA)
Tualla, Ivan Patrick B.& Bitacura, Jayzon G.. Effects of Cadmium and Zinc on the Gamete Viability, Fertilization, and Embryonic Development of Tripneustes gratilla (Linnaeus). Scientifica. 2016. Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1117902
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1117902