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HIGH HYDROSTATIC PRESSURE INDUCES SYNTHESIS OF HEAT‐SHOCK PROTEINS AND TREHALOSE‐6‐PHOSPHATE SYNTHASE IN Anastrepha ludens LARVAE
Author(s) -
VargasOrtiz Manuel A.,
QuintanaCastro Rodolfo,
OliartRos Rosa M.,
De la CruzMedina Javier,
Ramírez de León José A.,
Garcia Hugo S.
Publication year - 2013
Publication title -
archives of insect biochemistry and physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.576
H-Index - 66
eISSN - 1520-6327
pISSN - 0739-4462
DOI - 10.1002/arch.21085
Subject(s) - biology , hydrostatic pressure , larva , trehalose , botany , food science , biochemistry , physics , thermodynamics
The Mexican fruit fly ( Anastrepha ludens ) is responsible for losses of up to 25% of crops such as mango and citrus fruits in Central America and México. The larval life cycle of A. ludens comprises three stages with a duration ranging from 3 to 8 days. Because of the damage caused by A. ludens , several methods of control have been studied and implemented. High hydrostatic pressures (HHP) are currently applied to foods and it is now proposed to be employed to inactivate eggs and larvae of A. ludens . Originally HHP was designed to inactivate microorganisms, since it exerts marked effects on cell morphology, and can affect enzymatic reactions and genetic mechanisms of microbial cells, with no major changes altering the sensory or nutritional quality of the foodstuff. In this study, A. ludens in two larval stages (5‐ and 8‐day‐old) were subjected to HHP treatments. The biochemical response of the larvae of A. ludens was dependent on their stage of development. The third larval stage (L3) developed a better protection mechanism based on the synthesis of stress proteins or heat‐shock proteins (HSPs) and the enzyme trehalose‐6‐phosphate synthase, which are linked and possibly act together to achieve greater survivability to stress caused by hydrostatic pressure.