Open AccessEffect of L-ascorbic acid on the hsp70 expression and tissue damage in the third instar larvae of transgenic Drosophila melanogaster (hsp70-lacZ) bg9
Author(s) -
Barkha Shakya,
Smita Jyoti,
Falaq Naz,
Safiya Khan,
Rahul Mohammad Afzal,
Yasir Hasan Siddique
Publication year - 2012
Publication title -
toxicology international/indian journal of toxicology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.129
H-Index - 26
eISSN - 0976-5131
pISSN - 0971-6580
DOI - 10.4103/0971-6580.103673
Subject(s) - ascorbic acid , drosophila melanogaster , hsp70 , transgene , biology , melanogaster , microbiology and biotechnology , heat shock protein , biochemistry , gene , food science
All living organisms respond to various physical or chemical stressors by the induction of heat shock protein (HSP). The present study was performed on transgenic Drosophila melanogaster (hsp70-lacZ) Bg(9) in which the transformation vector is inserted with a P-element, the line contains wild-type hsp70 sequence up to the lacZ fusion point. The effect of L-ascorbic acid on the hsp70 expression and tissue damage was studied at the doses of 1, 2, 4, and 8 × 10(-4) g/ml in the third instar larvae of transgenic D. melanogaster (hsp70-lacZ) Bg(9). The larvae were exposed to different doses of L-ascorbic acid for 24 and 48 hours. A dose-dependent significant increase in the hsp70 expression was observed at 2, 4, and 8 × 10(-4) g/ml of L-ascorbic acid for both 24 and 48 hours. The tissue damage was observed only in the 48 hours of exposure and mostly only in the salivary glands of the third instar larvae of transgenic D. melanogaster (hsp70-lacZ) Bg(9). The present study also validates and supports the use of transgenic D. melanogaster (hsp70-lacZ) Bg(9) for the toxicological evaluations.