Monitoring the emission of volatile organic compounds from the leaves of Calocedrus macrolepis var. formosana using solid-phase micro-extraction |
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Authors: | Ying-Ju Chen Sen-Sung Cheng Shang-Tzen Chang |
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Institution: | (1) Cardiff School of Biosciences, Cardiff University, Cardiff, CF10 3TL, UK; |
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Abstract: | In this study, solid-phase micro-extraction (SPME) fibers coated with polydimethylsiloxane/divinylbenzene (PDMS/DVB), coupled
with gas chromatography/mass spectrometry, were used to monitor the emission patterns of biogenic volatile organic compounds
(BVOCs) from leaves of Calocedrus macrolepis var. formosana Florin. in situ. In both sunny and rainy weather, the circadian profile for BVOCs from C. macrolepis var. formosana leaves has three maximum emission cycles each day. This kind of emission pattern might result from the plant’s circadian
clock, which determines the rhythm of terpenoid emission. Furthermore, emission results from the leaves demonstrated that
the circadian profile of α-pinene observed was opposite to the profiles of limonene and myrcene, a difference that may be attributable to two different
subpathways for terpenoid biosynthesis. |
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Keywords: | |
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