spacer gif spacer gif spacer gif spacer gif spacer gif
QUICK SEARCH:   [advanced]


spacer gif
     Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents    

First published online June 16, 2005
Journal of Experimental Biology 208, 2615-2620 (2005)
Published by The Company of Biologists 2005
doi: 10.1242/jeb.01685
This Article
Right arrow Summary Freely available
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Powell, S. J.
Right arrow Articles by Bale, J. S.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Powell, S. J.
Right arrow Articles by Bale, J. S.
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati   Add to Twitter  
What's this?

Low temperature acclimated populations of the grain aphid Sitobion avenae retain ability to rapidly cold harden with enhanced fitness

S. J. Powell* and J. S. Bale

School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK



View larger version (17K):

[in a new window]
  		Fig. 1. Percentage survival (mean ± S.E.M.; N=100) of first instar and newly moulted pre-reproductive S. avenae reared at 10°C, 72 h after direct exposure to a range of sub-zero temperatures. Discriminating temperatures for first instar nymphs and newly moulted adult aphids were determined as –11.5°C and –12.0°C, respectively. Means with the same letter are not significantly different at P<0.05 (Tukey multiple comparison test).

 


View larger version (26K):

[in a new window]
  		Fig. 2. Percentage survival (mean ± S.E.M.; N=50) of first instar and newly moulted pre-reproductive S. avenae reared at 10°C, 72 h after rapid cold-hardening (RCH) treatment. Aphids were rapidly cold-hardened at 0°C for increasing periods of time, prior to exposure to the discriminating temperature (–11.5°C for first instar nymphs and –12°C for newly moulted adults). Means with the same letter are not significantly different at P<0.05 (Tukey multiple comparison test).

 


View larger version (20K):

[in a new window]
  		Fig. 3. Percentage survival (mean ± S.E.M.; N=50) of 10°C-reared first instar and newly moulted pre-reproductive S. avenae, 72 h after cooling from 10° to 0°C at various rates, prior to exposure to the discriminating temperature (–11.5°C for first instar nymphs and –12°C for newly moulted adults). Means with the same letter are not significantly different at P<0.05 (Tukey multiple comparison test).

 

Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati   Add to Twitter Twitter    What's this?



© The Company of Biologists Ltd 2005