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Çѱ¹½Ä¹°ÇÐȸ / v.52, no.4, 2009³â, pp.289-297
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( Saturated Aldehydes C6-C10 Emitted from Ashleaf Maple (Acer negundo L.) Leaves at Different Levels of Light Intensity, $O_2$, and $CO_2$ ) |
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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 $CO_2$ (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 $CO_2$ 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. |
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Ű¿öµå |
Acer negundo L.;$CO_2$ concentration;Light intensity;$O_2$ concentration;Reactive oxygen species (ROS);Saturated aldehydes C6-C10; |
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Journal of Plant Biology / v.52, no.4, 2009³â, pp.289-297
Çѱ¹½Ä¹°ÇÐȸ
ISSN : 1226-9239
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200931559972027)
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³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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