English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Juvenile immune system activation induces a costly upregulation of adult immunity in field crickets Gryllus campestris

Jacot, A., Scheuber, H., Kurtz, J., & Brinkhof, M. W. G. (2005). Juvenile immune system activation induces a costly upregulation of adult immunity in field crickets Gryllus campestris. Proceedings of the Royal Society B, 272(1558), 63-69. doi:10.1098/rspc.2004.2919.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-DA02-C Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-DA03-A
Genre: Journal Article

Files

show Files
hide Files
:
jacotkurtz0405.pdf (Publisher version), 146KB
 
File Permalink:
-
Name:
jacotkurtz0405.pdf
Description:
-
Visibility:
Restricted (Max Planck Institute for Evolutionary Biology, Plön; )
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Jacot, Alain, Author
Scheuber, Hannes, Author
Kurtz, Joachim1, Author              
Brinkhof, Martin W. G., Author
Affiliations:
1Department Evolutionary Ecology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_1445634              

Content

show
hide
Free keywords: Gryllus campestris; induced immunity; lipopolysaccharide; lysozyme; prophenoloxidase protein load
 Abstract: Inducible immune defence may allow organisms a state-dependent upregulation of costly immunity in order to minimize the risk of anticipated future parasitism. The basic costs of elevated immune activity might involve a reduction in other fitness-related traits as well as an increased risk of immunopathology. In male field crickets Gryllus campestris we experimentally investigated the condition-dependent effects of immune system activation in nymphs on immunity and physiological condition during adulthood. Following a nymphal injection of bacterial lipopolysaccharides, adult males showed significantly elevated levels of two major immune parameters, i.e. haemolymph antibacterial activity and the concentration of prophenoloxidase (proPO). By contrast, the active enzyme, phenoloxidase (PO), did not increase, suggesting a strategic long-term upregulation of the inactive proenzyme proPO only. This may help avoid the cytotoxic effects associated with high standing levels of the active enzyme. The nymphal immune insult further caused a reduction in adult haemolymph protein load, suggesting a long-term decline in overall metabolic condition. Nymphal food availability positively affected adult lysozyme activity, while PO and proPO concentrations were not affected. Our data thus suggest the long-term upregulation of immunity in response to antigenic cues as an adaptive, yet costly, invertebrate strategy to improve resistance to future parasitism.

Details

show
hide
Language(s): eng - English
 Dates: 2005-01-07
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: eDoc: 217595
DOI: 10.1098/rspc.2004.2919
Other: 2382/S 38360
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Proceedings of the Royal Society B
  Alternative Title : Proc. R. Soc. B
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 272 (1558) Sequence Number: - Start / End Page: 63 - 69 Identifier: ISSN: 0962-8452 (print)
ISSN: 1471-2954 (online)