Mucous cell responses in
branchial rakers of
Astyanax altiparane
(Characidae) after exposure to low
concentrations of LAS-based detergents.
Accepted 8th
April, 2018
Fernanda Passarini Lopes1,
Bruno Fiorelini Pereira2*, Rebeca Mamede da Silva Alves1,
Dimitrius Leonado Pitol3, Priscilla Hakime Scalize3 and
Flavio Henrique Caetano1
1Instituto de Biociência, Universidade Estadual Paulista “Júlio de
Mesquita Filho” - UNESP - Campus de Rio Claro – SP – Brazil. 2Centro de Ciências Biológicas e da Saúde, Universidade Federal do
Oeste da Bahia-UFOB, Campus Barreiras, Barreiras, Brasil. 3Faculdade de Odontologia de Ribeirão Preto – FORP/USP, Brazil.
Most water bodies worldwide
are polluted, predominantly by wastewater
containing detergents of both domestic and
industrial origins. Studies have shown that
exposure to detergent can cause histochemical
and even physiological changes in an animal's
body, especially in gills, skin and liver of
fish and, occasionally leading to death. Gill
rakers are present in the gill arch and along
with it, play an important role in food
selection and in the protection of gills,
preventing lesions caused by solid particles.
Although a lot is known about the effects of
pollutants in gills, very little is investigated
in regard to gill rakers. By virtue of the role
gill rakers play in fish health, this study
aimed to identify possible histochemical changes
in the first left gill arch of
Astyanax altiparanae
(Lambeth) caused by exposure to 01 ppm (01 mg/L)
of biodegradable detergents diluted in water for
one and five months. The first month of exposure
resulted in hyperplasia of mucous cells, but
with low mucous secretion on gill rakers. After
five months of experiment, the number of mucous
cells decreased due to hypersecretion of mucous.
The mucous also plays a role in the defense
against toxic agents and assists ionic balance
mechanisms in fish.
This is an open access article
published under the terms of the
Creative Commons Attribution
License, which permits unrestricted use, distribution, and
reproduction in any medium, provided the original work is
properly cited.
Cite this article as:
Lopes FP, Pereira BF, Alves RMS, Pitol
DL, Scalize PH, Caetano FH (2018). Mucous cell responses in branchial rakers of
Astyanax altiparane
(Characidae) after exposure to low concentrations of LAS-based detergents. Acad.
J. Environ. Sci. 6(4): 095-103.
