Document Detail

Heliothine caterpillars differ in abundance of a gut lumen aminoacylase (L-ACY-1)-Suggesting a relationship between host preference and fatty acid amino acid conjugate metabolism.
MedLine Citation:
PMID:  22266147     Owner:  NLM     Status:  Publisher    
Fatty acid amino acid conjugates (FACs) in the oral secretions of Lepidopteran larvae are responsible for eliciting plant defense responses. FACs are present despite fitness costs which suggests that they are important for larval survival. In previous work, an aminoacylase (L-ACY-1) was identified as the enzyme responsible for hydrolysis of FACs within the larvae gut. This gene is present in three related Heliothine species: Heliothis virescens, Helicoverpa zea, and Heliothis subflexa. Transcript levels in gut tissues are predictive of protein abundance and enzyme activity in the frass. H. zea has the least amount of L-ACY-1 present in gut tissue and frass, while H. virescens has intermediate protein levels and H. subflexa has the highest amount of L-ACY-1 in gut tissue as well as in frass samples. These species differ in their host range and protein intake targets, and recently, it has been shown that FACs, the substrates of L-ACY-1, are involved in nitrogen metabolism. The correlation between protein intake and degree of host range specialization suggests that this aminoacylase may allow specialized larvae to obtain nitrogen requirements despite limitations in diet heterogeneity.
Emily H Kuhns; Irmgard Seidl-Adams; James H Tumlinson
Related Documents :
11902867 - Dynamic kinetic resolution via dual-function catalysis of modified cinchona alkaloids: ...
22129167 - Inversion or retention? effects of acidic additives on the stereochemical course in ena...
11674037 - Ring-opening cycloaddition of aziridines to ketenimines.
17078677 - Palladium-catalyzed regiospecific aminocarbonylation of alkynes in the ionic liquid [bm...
2254627 - Influence of backward perfusion on ursodeoxycholate-induced choleresis in isolated in s...
7560387 - Volatile fatty acids, metabolic by-products of periodontopathic bacteria, inhibit lymph...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-12
Journal Detail:
Title:  Journal of insect physiology     Volume:  -     ISSN:  1879-1611     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-1-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2985080R     Medline TA:  J Insect Physiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012. Published by Elsevier Ltd.
Center for Chemical Ecology, Department of Entomology, The Pennsylvania State University, University Park, PA 16802, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Convection enhanced drug delivery of BDNF through a microcannula in a rodent model to strengthen con...
Next Document:  Novel and recurrent COL7A1 mutation in a Polish population.