Morphology and viability of adult Fasciola gigantica (giant liver flukes) from Philippine carabaos (Bubalus bubalis) upon in vitro exposure to lead

College

College of Science

Department/Unit

Biology

Document Type

Article

Source Title

Asian Pacific Journal of Tropical Biomedicine

Volume

5

Issue

6

First Page

493

Last Page

496

Publication Date

1-1-2015

Abstract

Objective: To evaluate the effects of lead in the morphology and viability of Fasciola gigantica (F. gigantica) (giant liver fluke) isolated from infected livers of carabaos in vitro using the following concentrations of lead: 0, 100, 150 and 200 mg/L. Methods: In vitro viability and motility assay was conducted to evaluate the effects of lead using 1% methylene blue as the vital dye for assessment of the flukes' viability. Results: Results indicate that F. gigantica can tolerate lead exposure as high as 200 mg/ L with visible morphological variations. Upon exposure to lead, liver flukes tend to curl and excrete black precipitates as a sign of physiological stress response. Furthermore, the lethal concentration (LC50) of lead against F. gigantica in vitro was 160 mg/L. Conclusions: In conclusion, tolerance of liver flukes to high levels of lead suggests its potential as a possible biomarker of environmental pollution. © 2015 Hainan Medical University.

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Digitial Object Identifier (DOI)

10.1016/j.apjtb.2015.03.008

Disciplines

Biology

Keywords

Liver flukes; Fasciola; Lead; Lead—Physiological effect; Water buffalo—Effect of heavy metals on--Philippines

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