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Elevated Carbon Dioxide Increases Salicylic Acid in Glycine max.
MedLine Citation:
PMID:  23321090     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Concentrations of carbon dioxide (CO(2)) are increasing in the atmosphere, affecting soybean (Glycine max L.) phytohormone signaling and herbivore resistance. Whether the impact of elevated CO(2) on phytohormones and induced defenses is a generalized response within this species is an open question. We examined jasmonic acid (JA) and salicylic acid (SA) under ambient and elevated CO(2) concentrations with and without Japanese beetle (Popillia japonica Newman) damage and artificial damage across six soybean cultivars (HS93-4118, Pana, IA 3010, Loda, LN97-15076, and Dwight). Elevated CO(2) reduced constitutive levels of JA and related transcripts in some but not all soybean cultivars. In contrast to the variation in JA, constitutive levels of salicylic were increased universally among soybean cultivars grown under elevated CO(2). Variation in hormonal signaling may underpin observed variation in the response of insect herbivores and pathogens to plants grown under elevated CO(2).
Authors:
Clare L Casteel; Lauren M Segal; Olivia K Niziolek; May R Berenbaum; Evan H Delucia
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Environmental entomology     Volume:  41     ISSN:  1938-2936     ISO Abbreviation:  Environ. Entomol.     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2013-01-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7502320     Medline TA:  Environ Entomol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1435-42     Citation Subset:  IM    
Affiliation:
Department of Plant Biology University of Illinois, Urbana-Champaign, IL 61820, USA.
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