Metabolomic Analysis on the Mechanism of Nanoselenium Biofortification Improving the <i>Siraitia grosvenorii</i> Nutritional and Health Value
Chunran Zhou,
Jingbang Zhang,
Yangliu Wu,
Haiyan Cheng,
Qiuling Pang,
Yuanhui Xiao,
Dong Li,
Canping Pan
Affiliations
Chunran Zhou
Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, China Yuanmingyuan West Road 2, Beijing 100193, China
Jingbang Zhang
Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, China Yuanmingyuan West Road 2, Beijing 100193, China
Yangliu Wu
Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, China Yuanmingyuan West Road 2, Beijing 100193, China
Haiyan Cheng
Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, China Yuanmingyuan West Road 2, Beijing 100193, China
Qiuling Pang
Guangxi Academy of Specialty Crops, Putuo Road 40, Guilin 541004, China
Yuanhui Xiao
Guangxi Academy of Specialty Crops, Putuo Road 40, Guilin 541004, China
Dong Li
Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, Ministry of Education, College of Plant Protection, Hainan University, Haikou 570228, China
Canping Pan
Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, China Yuanmingyuan West Road 2, Beijing 100193, China
Nanoselenium (nano-Se) foliar application is crucial for enhancing plant health. However, the mechanism by which nano-Se biofortification promotes the nutritional components of Siraitia grosvenorii remains unclear. In this study, nano-Se foliar application increased the carbohydrate and amino acid contents, including glucose (23.6%), fructose (39.7%), sucrose (60.6%), tryptophan (104.5%), glycine (85.9%), tyrosine (78.4%), phenylalanine (60.1%), glutamic acid (63.4%), and proline (52.5%). Nano-Se application enhanced apigenin (3.8 times), syringic acid (0.7 times), and 4-hydroxy-3,5-dimethoxycinnamic acid (1.4 times) of the phenylpropane biosynthesis pathways. Importantly, the SgCDS (31.1%), CYP-P450 (39.1%), and UGT (24.6%) were induced by nano-Se, which enhanced the mogroside V content (16.2%). Compared to the control, nano-Se treatment dramatically enhanced aromatic substances, including 2-butanone (51.9%), methylpropanal (146.3%), n-nonanal dimer (141.7%), pentanal (52.5%), and 2-pentanone (46.0%). In summary, nano-Se improves S. grosvenorii quality by increasing nutrients and volatile organic compounds and adjusting the phenylpropane pathway.
