Journal article
Fulvic acid ameliorates drought stress-induced damage in tea plants by regulating the ascorbate metabolism and flavonoids biosynthesis
BMC Genomics, Vol.21, Article 411
2020
Abstract
Background
Fulvic acid (FA) is a kind of plant growth regulator, which can promote plant growth, play an important role in fighting against drought, improve plant stress resistance, increase production and improve quality. However, the function of FA in tea plants during drought stress remain largely unknown.
Results
Here, we examined the effects of 0.1 g/L FA on genes and metabolites in tea plants at different periods of drought stress using transcriptomics and metabolomics profiles. Totally, 30,702 genes and 892 metabolites were identified. Compared with controlled groups, 604 and 3331 differentially expressed metabolite genes (DEGs) were found in FA-treated tea plants at 4 days and 8 days under drought stress, respectively; 54 and 125 differentially expressed metabolites (DEMs) were also found at two time points, respectively. Bioinformatics analysis showed that DEGs and DEMs participated in diverse biological processes such as ascorbate metabolism (GME, AO, ALDH and L-ascorbate), glutathione metabolism (GST, G6PDH, glutathione reduced form and CYS-GYL), and flavonoids biosynthesis (C4H, CHS, F3’5’H, F3H, kaempferol, quercetin and myricetin). Moreover, the results of co-expression analysis showed that the interactions of identified DEGs and DEMs diversely involved in ascorbate metabolism, glutathione metabolism, and flavonoids biosynthesis, indicating that FA may be involved in the regulation of these processes during drought stress.
Conclusion
The results indicated that FA enhanced the drought tolerance of tea plants by (i) enhancement of the ascorbate metabolism, (ii) improvement of the glutathione metabolism, as well as (iii) promotion of the flavonoids biosynthesis that significantly improved the antioxidant defense of tea plants during drought stress. This study not only confirmed the main strategies of FA to protect tea plants from drought stress, but also deepened the understanding of the complex molecular mechanism of FA to deal with tea plants to better avoid drought damage.
Details
- Title
- Fulvic acid ameliorates drought stress-induced damage in tea plants by regulating the ascorbate metabolism and flavonoids biosynthesis
- Authors/Creators
- J. Sun (Author/Creator) - Qingdao Agricultural UniversityC. Qiu (Author/Creator) - Qingdao Agricultural UniversityY. Ding (Author/Creator) - Qingdao Agricultural UniversityY. Wang (Author/Creator) - Qingdao Agricultural UniversityL. Sun (Author/Creator) - Murdoch UniversityK. Fan (Author/Creator) - Qingdao Agricultural UniversityZ. Gai (Author/Creator) - Qingdao Agricultural UniversityG. Dong (Author/Creator) - The Quality and Safety Center of Agricultural Products, Qingdao, ChinaJ. Wang (Author/Creator) - The Service Center of Agricultural Technology, Rizhao, ChinaX. Li (Author/Creator) - Nanjing Agricultural UniversityL. Song (Author/Creator) - Institute of PomologyZ. Ding (Author/Creator) - Qingdao Agricultural University
- Publication Details
- BMC Genomics, Vol.21, Article 411
- Publisher
- BioMed Central
- Identifiers
- 991005543583007891
- Copyright
- © 2020 The Authors
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.4 Crop Science
- 3.4.49 Plant Stress Responses
- Web Of Science research areas
- Biotechnology & Applied Microbiology
- Genetics & Heredity
- ESI research areas
- Molecular Biology & Genetics