期刊
SCIENTIFIC REPORTS
卷 11, 期 1, 页码 -出版社
NATURE PORTFOLIO
DOI: 10.1038/s41598-021-91598-1
关键词
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资金
- Science and Technology Planning Project of Sichuan Province [2017NFP0053]
- Fourth Chinese Materla Medica (CMM) Resources Survey [2018PC007]
- National Survey of Traditional Chinese Medicine Resources [GZY-KJS-2018-004]
- 'Strategic Priority Research Program' of the Chinese Academy of Sciences [XDA24030401-2]
The germination of Polygonatum cyrtonema Hua seeds involves the regulation of plant hormones, alpha-amylase activity, and metabolites related to phenylpropanoid and flavonoid biosynthesis. Germinated seeds promote flavonoid synthesis and inhibit lignin synthesis, facilitating the germination process. Additionally, starch hydrolysis into glucose provides necessary energy for germination.
Polygonatum cyrtonema Hua (Huangjing, HJ) has medicinal and edible value in China. However, the seeds of this plant are naturally difficult to germinate. Therefore, to elucidate the mechanism underlying the germination of this plant in order to meet the market demand, the metabolomic and transcriptomic analyses were performed in this study. We observed that plant hormones and alpha -amylase activity were differentially regulated when comparing germinated and un-germinated seeds. In addition, the metabolites related to phenylpropanoid and flavonoid biosynthesis were significantly up-accumulated in germinated seeds. Hydroxycinnamoyl derivatives and organic acids were observed to be significantly decreased during germination. The results of this study suggested that compared to un-germinated seeds, germinated seeds promote flavonoid synthesis and inhibit lignin synthesis which could be beneficial to the germination of HJ seeds. Furthermore, these results suggested that starch if hydrolyzed into glucose, which could provide the necessary energy for germination. Our results may help to establish a foundation for further research investigating the regulatory networks of seed germination and may facilitate the propagation of HJ seeds.
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