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Title: Interactive influence of leaf age, light intensity, and girdling on green ash foliar chemistry and emerald ash borer development

Author: Chen, Yigen; Poland, Therese M.;

Date: 2009

Source: Journal of Chemical Ecology. 35(7): 806-815.

Publication Series: Scientific Journal (JRNL)

Description: Biotic and abiotic environmental factors affect plant nutritional quality and defensive compounds that confer plant resistance to herbivory. Influence of leaf age, light availability, and girdling on foliar nutrition and defense of green ash (Fraxinus pennsylvanica Marsh) was examined in this study. Longevity of the emerald ash borer, Agrilus planipennis Fairmaire (Coleoptera: Buprestidae), adults reared on green ash foliage subjected to these factors was assayed. Mature leaves generally were more nutritious with greater amino acids and a greater ratio of protein to non-structural carbohydrate (P:C) than young leaves, in particular when trees were grown in shade. On the other hand, mature leaves had lower amounts of trypsin and chymotrypsin inhibitors, and total phenolics compared to young leaves. Lower defense of mature leaves alone, or along with higher nutritional quality may lead to increased survival and longevity of emerald ash borer feeding on mature leaves.

Keywords: Fraxinus pennsylvanica, Agrilus planipennis, Abiotic factors, Foliar nutrition, Plant defense

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Citation:


Chen, Yigen; Poland, Therese M. 2009. Interactive influence of leaf age, light intensity, and girdling on green ash foliar chemistry and emerald ash borer development. Journal of Chemical Ecology. 35(7): 806-815.

 


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