期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 67, 期 16, 页码 4689-4699出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.9b00503
关键词
melatonin; gibberellin; Camellia sinensis; terpenoid synthesis; plant hormonal signal transduction
资金
- Open Fund of State Key Laboratory of Tea Plant Biology and Utilization [SKLTOF20150110]
- Postgraduate Innovation plan Project of Qingdao Agricultural University [QYC201720]
- Talents Start-up funds of Qingdao Agricultural University [663/1114343]
Melatonin and gibberellin are bioactive molecules in plants. In the present study, the role of exogenous melatonin (MT) and gibberellin (GA) in the tea plant was explored by transcriptome and metabolic analysis. Results showed that the growth of tea plant was enhanced by MT treatment. The pathways of terpenoid synthesis and plant pathogen interaction were significantly strengthened, combined with the upregulation of LRR-RLK and transcription factors which contributed to the growth of tea plant. The internode elongation and leaf enlargement were hastened by GA treatment. Significantly modulated expression occurred in the plant hormonal signal transduction, complemented by the upregulation of phenylpropanoid biosynthesis and expansins to achieve growth acceleration, whereas the flavonoid synthesis was repressed in GA treatment. Therefore, the distinctive effect of MT and GA treatment on tea plant was different. The MT exhibited significant promotion in terpenoid synthesis, especially, TPS14 and TPS1. GA was prominent in coordinated regulation of plant hormonal signal transduction.
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