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HIGH HYDROSTATIC PRESSURE INDUCES SYNTHESIS OF HEAT-SHOCK PROTEINS AND TREHALOSE-6-PHOSPHATE SYNTHASE IN Anastrepha ludens LARVAE.
MedLine Citation:
PMID:  23361865     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
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.
Authors:
Manuel A Vargas-Ortiz; Rodolfo Quintana-Castro; Rosa M Oliart-Ros; Javier De la Cruz-Medina; José A Ramírez de León; Hugo S Garcia
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-29
Journal Detail:
Title:  Archives of insect biochemistry and physiology     Volume:  -     ISSN:  1520-6327     ISO Abbreviation:  Arch. Insect Biochem. Physiol.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8501752     Medline TA:  Arch Insect Biochem Physiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2013 Wiley Periodicals, Inc.
Affiliation:
Unidad de Investigación y Desarrollo en Alimentos, Instituto Tecnológico de Veracruz, M.A. de Quevedo, Col. Formando Hogar, Veracruz Ver., México.
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