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Effect of temperature on morphology, ginsenosides biosynthesis, functional genes, and transcriptional factors expression in Panax ginseng adventitious roots
Author(s) -
Wang Shihui,
Liang Wenxia,
Yao Lu,
Wang Juan,
Gao Wenyuan
Publication year - 2019
Publication title -
journal of food biochemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.507
H-Index - 47
eISSN - 1745-4514
pISSN - 0145-8884
DOI - 10.1111/jfbc.12794
Subject(s) - ginseng , ginsenoside , chemistry , araliaceae , plant roots , incubation , traditional medicine , botany , biology , biochemistry , medicine , alternative medicine , pathology
This study researched the effect of temperature on growth and ginsenosides accumulation in adventitious root cultures of Panax ginseng . Results showed that the ginseng adventitious roots growth and differentiation ability could be affected faced with different incubation temperatures (15, 20, 25, and 30°C for 35 days). Besides, the research also demonstrated that low‐temperature stimulation could promote the accumulation of ginsenosides and the content of total ginsenosides increased by 2.53 times at 10°C‐7d (10°C for 7 days and then transferred to 25°C for 28 days) compared with that at 25°C. Moreover, the transcriptional levels of functional genes and PgWRKYs were analyzed by this study and the correlation analysis showed that GPS, SS, CYP716A47, CYP716A53v2, UGT74AE2, UGT94Q2, PgWRKY1, PgWRKY3, and PgWRKY8 were significantly correlated with total ginsenosides content. Furthermore, HPLC‐ESI–MS n analyzed that Malonyl‐Rb 1 only existed in 10°C‐7d group. Practical applications The survey showed that after a certain time of stimulating P. ginseng adventitious roots at low temperature, the accumulation of ginsenosides could be enhanced as their expression of related genes were regulated. It provides a theoretical foundation for the mass production of ginsenosides by controlling the temperature conditions of P. ginseng adventitious roots.