Effects of aphid herbivory on biomass and leaf-level physiology of   Solanum dulcamara under elevated temperature and CO2

doi:10.1016/j.envexpbot.2004.12.001

CORC > 北京大学 > 城市与环境学院

	Effects of aphid herbivory on biomass and leaf-level physiology of Solanum dulcamara under elevated temperature and CO2
	Flynn, DFB ; Sudderth, EA ; Bazzaz, FA
刊名	environmental and experimental botany
	2006
关键词	climate change insect herbivory photosynthesis elevated CO2 temperature Macrosiphum euphorbiae CARBON-DIOXIDE ATMOSPHERES GLOBAL CLIMATE-CHANGE POPULATION RESPONSES MYZUS-PERSICAE INCREASING CO2 CEREAL APHIDS PLANT-GROWTH PERFORMANCE IMPACTS LEPIDOPTERA
DOI	10.1016/j.envexpbot.2004.12.001
英文摘要	Forecasted increases in atmospheric CO2 and global mean temperature are likely to influence insect-plant interactions. Plant traits important to insect herbivores, such as nitrogen content, may be directly affected by elevated CO2 and temperature, while insect herbivores are likely to be directly affected only by temperature. This study investigates changes in the effects of herbivory by the aphid Macrosiphum euphorbiae (Homoptera: Aphididae) on the C-3 perennial Solanum dulcamara under two conditions of atmospheric CO2 concentration (350/750ppm) and three temperature treatments (20/15, 23/18, 26/21 degrees C; day/night temperatures). Plants were grown in glass-topped chambers and initially infested with three apterous, adult aphids. Aphid population size, leaf photosynthetic capacity, carbon to nitrogen (C:N) ratio, specific leaf area, plant height, and total plant biomass were measured after 3 weeks of infestation. Aphid herbivory reduced photosynthetic capacity under all conditions, and resulted in smaller leaf C:N ratios. Aphid populations did not change significantly under elevated CO2, but tended to increase slightly. Average aphid weight decreased at high temperatures. Plant height and biomass were not significantly affected by the CO2 treatment, but growth rates before infestation were enhanced by elevated CO2. These results indicate that the combined effects of both elevated CO2 and temperature may exacerbate aphid damage to certain plants, particularly to plants which respond weakly to increases in atmospheric CO2. Modifications of plant physiology under altered CO2 and temperature do not impair, and may slightly enhance aphid population growth. (c) 2004 Elsevier B.V. All rights reserved.; Plant Sciences; Environmental Sciences; SCI(E); 22; ARTICLE; 1; 10-18; 56
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/252419]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Flynn, DFB,Sudderth, EA,Bazzaz, FA. Effects of aphid herbivory on biomass and leaf-level physiology of Solanum dulcamara under elevated temperature and CO2[J]. environmental and experimental botany,2006.
APA	Flynn, DFB,Sudderth, EA,&Bazzaz, FA.(2006).Effects of aphid herbivory on biomass and leaf-level physiology of Solanum dulcamara under elevated temperature and CO2.environmental and experimental botany.
MLA	Flynn, DFB,et al."Effects of aphid herbivory on biomass and leaf-level physiology of Solanum dulcamara under elevated temperature and CO2".environmental and experimental botany (2006).