Sagae Masanori, Oyama-Okubo Naomi, Ando Toshio, Marchesi Eduardo, Nakayama Masayoshi
Graduate School of Life and Environmental Sciences, University of Tsukuba, Ibaraki, Japan.
Biosci Biotechnol Biochem. 2008 Jan;72(1):110-5. doi: 10.1271/bbb.70490. Epub 2008 Jan 7.
The floral scent emission and endogenous level of its components in Petunia axillaris under different conditions (20, 25, 30, and 35 degrees C) were investigated under the hypothesis that floral scent emission would be regulated by both metabolic and vaporization processes. The total endogenous amount of scent components decreased as the temperature increased, the total emission showing a peak at 30 degrees C. This decrease in endogenous amount was compensated for by increased vaporization, resulting in an increase of floral scent emission from 20 degrees C to 30 degrees C. The ambient temperature differently and independently influenced the metabolism and vaporization of the scent compounds, and differences in vapor pressure among the scent compounds were reduced as the temperature increased. These characteristics suggest the operation of an unknown regulator to change the vaporization of floral scent.
在代谢和汽化过程均会调节花香释放这一假设下，研究了不同条件（20、25、30和35摄氏度）下腋花矮牵牛的花香释放及其成分的内源水平。随着温度升高，香味成分的内源总量减少，总释放量在30摄氏度时达到峰值。内源量的这种减少通过汽化增加得到补偿，导致从20摄氏度到30摄氏度花香释放增加。环境温度对香味化合物的代谢和汽化有不同且独立的影响，随着温度升高，香味化合物之间的蒸气压差异减小。这些特征表明存在一个未知调节因子来改变花香的汽化。
