文献类型：期刊文献

英文题名：Saturated Aldehydes C6-C10 Emitted from Ashleaf Maple (Acer negundo L.) Leaves at Different Levels of Light Intensity, O-2, and CO2

作者：Hu, Zeng-hui[1] Shen, Ying-bai[1] Su, Xiao-hua[2]

第一作者：Hu, Zeng-hui

通信作者：Shen, YB[1]

机构：[1]Beijing Forestry Univ, Coll Biol Sci & Technol, Minist Educ, Key Lab Genet & Breeding Forest Trees & Ornamenta, Beijing 100083, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry, Beijing 100091, Peoples R China

年份：2009

卷号：52

期号：4

起止页码：289-297

外文期刊名：JOURNAL OF PLANT BIOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000267670300003)】；

基金：This work was collectively supported by the Program for Changjiang Scholars and the Innovative Research Team in Universities of China (PCSIRT0607), National Natural Science Foundation of China (30871727; 30872037), and the National Key Project of Scientific and Technical Supporting Programs Funded by the Ministry of Science & Technology of China (2006BAD01A15; 2006BAD24B04). We thank Dr. G. Hazenberg (Lakehead University, Ontario, Canada) for valuable suggestions on the manuscript.

语种：英文

外文关键词：Acer negundo L.; CO2 concentration; Light intensity; O-2 concentration; Reactive oxygen species (ROS); Saturated aldehydes C6-C10

摘要：Aldehydes, a group of volatile organic compounds (VOCs) often detected in the atmosphere, play a key role in atmospheric chemistry and plant resistance to stresses. We used gas chromatography/mass spectrometry to examine the volatiles of saturated aldehydes C6-C10 that were emitted from cuttings of ashleaf maple (Acer negundo L.) under varying levels of light intensity (80, 400, and 800 mu mol m(-2) s(-1)), O-2 (2% and 50%), and CO2 (600, 1,000, and 1,200 ppm). An apparent, positive correlation was found between light intensity and emissions, and their release also was significantly enhanced by higher O-2 concentrations. In contrast, emissions clearly were negatively correlated with CO2 levels. We speculate that the reactive oxygen species (ROS) generated during photosynthesis contribute to these elevated emissions. However, the mechanism for this ROS trigger is unknown.