Full TGIF Record # 37821
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Web URL(s):https://academic.oup.com/ee/article/25/3/618/489583/Antiherbivore-Defense-Mutualism-Under-Elevated
    Last checked: 02/17/2017
    Access conditions: Item is within a limited-access website
Publication Type:
i
Refereed
Author(s):Marks, Susan; Lincoln, David E.
Author Affiliation:Department of Biology, Winthrop University, Rock Hill, SC 29733; Department of Biological Sciences, University of South Carolina, Columbia, SC 29208
Title:Antiherbivore defense mutualism under elevated carbon dioxide levels: A fungal endophyte and grass
Source:Environmental Entomology. Vol. 25, No. 3, June 1996, p. 618-623.
# of Pages:6
Publishing Information:College Park, MD: Entomological Society of America
Keywords:TIC Keywords: Leaf tissue; Infection; Carbon dioxide; Lepidoptera; Noctuidae; Larva; Spodoptera frugiperda; Festuca arundinacea; Endophytes; Growth rate
Abstract/Contents:"Previous studies have shown that insects commonly consume more when fed leaf tissue grown under CO₂ enrichment, but with few negative effects on growth. However, lepidopteran larvae fed tissue infected with Balansiae fungal endophytes (which produce toxic alkaloids) typically eat less but also suffer negative effects on growth and survival. This study was carried out to understand how these 2 factors may interact to affect larval consumption and growth in fall armyworm, Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae). Infected and uninfected ramets of a single genotype of tall fescue, Festuca arundinacea Schreb., were grown under CO₂ concentrations of 400 and 700 μl CO₂/liter of air. Relative consumption of leaf tissue by larvae was 32% greater in high CO₂ treatment compared with leaves grown under low CO₂ concentrations, but was not influenced by infection. As expected, larvae had significantly decreased relative growth rates when fed infected tissue, with their growth rates somewhat increased under high CO₂ levels. Increased CO₂ level and infection both led to significantly reduced efficiency of conversion of ingested food. These 2 factors also interacted so that the lowest efficiency of conversion of ingested food was seen when both infection and an enriched atmospheric CO₂ environment were present. As global atmospheric CO₂ levels continue to increase, it appears that fungal endophytes will continue to be important in turfgrasses as protection against insect herbivores and may lead to increased fitness for infected plant genotypes."
Language:English
References:47
Note:Figures
Table
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Marks, S., and D. E. Lincoln. 1996. Antiherbivore defense mutualism under elevated carbon dioxide levels: A fungal endophyte and grass. Environ. Entomol. 25(3):p. 618-623.
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https://academic.oup.com/ee/article/25/3/618/489583/Antiherbivore-Defense-Mutualism-Under-Elevated
    Last checked: 02/17/2017
    Access conditions: Item is within a limited-access website
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