期刊
PLANT BIOLOGY
卷 18, 期 -, 页码 130-139出版社
WILEY
DOI: 10.1111/plb.12403
关键词
Aldehydes; flavonoids; GC-MS; LC-TOF-MS; metabolite fingerprinting; Polygonum minus; terpenes; volatile organic compounds
资金
- Genomics and Molecular Biology Initiative of the Malaysia Genome Institute [07-05-MGI-GMB 004]
- Research University Grant under Arus Perdana [UKM-AP-BPB-14-2009]
- Fundamental Research Grant Scheme [UKM-RB-06-FRGS0102-2009]
- Centre for Research and Instrumentation Management, Universiti Kebangsaan Malaysia
Temperature is one of the key factors in limiting the distribution of plants and controlling major metabolic processes. A series of simulated reciprocal transplant experiments were performed to investigate the effect of temperature on plant chemical composition. Polygonum minus of different lowland and highland origin were grown under a controlled environment with different temperature regimes to study the effects on secondary metabolites. We applied gas chromatography-mass spectrometry and liquid chromatography time-of-flight mass spectrometry to identify the chemical compounds. A total of 37 volatile organic compounds and 85 flavonoids were detected, with the largest response observed in the compositional changes of aldehydes and terpenes in highland plants under higher temperature treatment. Significantly less anthocyanidin compounds and larger amounts of flavonols were detected under higher temperature treatment. We also studied natural variation in the different plant populations growing under the same environment and identified compounds unique to each population through metabolite fingerprinting. This study shows that the origin of different plant populations influences the effects of temperature on chemical composition.
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