Melatonin enhances plant growth and abiotic stress tolerance in soybean plants.
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In the present study, we tested the effect of melatonin (N-acetyl-5-methoxytryptamine) on soybean growth and development.Transcriptome analysis revealed that salt stress inhibited expressions of genes related to binding, oxidoreductase activity/process, and secondary metabolic processes.Melatonin up-regulated expressions of the genes inhibited by salt stress, and hence alleviated the inhibitory effects of salt stress on gene expressions.
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Affiliation: State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Chaoyang District, Beichen West Road, Campus #1, No.2, Beijing 100101, China.
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Figure 9: Melatonin enhances expressions of photosynthesis-related genes under normal and salt stress conditions. (A) Expression of genes related to photosynthesis. Red colour indicates up-regulation and green colour indicates down-regulation. Quadrangle represents a comparison of melatonin treated versus water control; circle represents a comparison of salt versus water control: triangle represents a comparison of salt plus melatonin versus salt. (B) Relative gene expression level analysed by q-PCR. A GmTubulin fragment was amplified as an internal control. Bars indicate standard deviation (n=3). Mentions: To confirm the results of transcriptome analysis, we extracted RNA from independently grown and treated plants and performed quantitative RT-PCR. The important genes that enriched in pathway analysis were tested and the real-time PCR results were consistent with transcriptome analysis (Figs 9B, 10B, 11B, and Supplementary Fig. S4B). |
View Article: PubMed Central - PubMed
Affiliation: State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Chaoyang District, Beichen West Road, Campus #1, No.2, Beijing 100101, China.