Wheat Stem Sawfly, Cephus cinctus Norton, Impact on Wheat Primary Metabolism: An Ecophysiological Approach

The impact of wheat stem sawfly, Cephus cinctus Norton (Hymenoptera: Cephidae), on the photosynthetic capacity and primary metabolism of wheat, Triticum aestivum L., was evaluated in three different environments: environmental growth chamber, greenhouse, and field. C. cinctus elicited different phot...

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Bibliographic Details
Published in:Environmental entomology 2005-06, Vol.34 (3), p.719-726
Main Authors: Macedo, Tulio B, Peterson, Robert K. D, Weaver, David K, Morrill, Wendell L
Format: Article
Language:English
Subjects:
Animal and plant ecology
Animal, plant and microbial ecology
Autoecology
Biological and medical sciences
boring insects
carbon dioxide
Cephus cinctus
eco-physiology
ecophysiology
feeding injury
Fundamental and applied biological sciences. Psychology
gas exchange
herbivory
injury guilds
metabolism
photosynthesis
Phytopathology. Animal pests. Plant and forest protection
plant response
plant-insect relations
Plants and fungi
PLANT–INSECT INTERACTIONS
Protozoa. Invertebrates
Records, symptoms, damages, economic importance, population surveys
sawflies
stomatal conductance
transpiration
Triticum aestivum
wheat
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Summary:The impact of wheat stem sawfly, Cephus cinctus Norton (Hymenoptera: Cephidae), on the photosynthetic capacity and primary metabolism of wheat, Triticum aestivum L., was evaluated in three different environments: environmental growth chamber, greenhouse, and field. C. cinctus elicited different photosynthetic responses in different environments. Wheat gas exchange parameters, such as photosynthesis, stomatal conductance, intercellular CO2, and transpiration in the growth chamber environment were negatively affected by C. cinctus feeding. Conversely, the same gas exchange responses were not observed under greenhouse and field conditions. This study shows the important role of environmental variables, such as ambient CO2 concentrations and light intensity, on plant responses to herbivores.
ISSN:0046-225X
1938-2936
DOI:10.1603/0046-225X-34.3.719