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https://doi.org/10.1038/ng.3517

has been cited by the following article:

• TITLE: Stress Responses of Peanut (Arachis hypogaea L.) Genotypes as Measured by Trigonelline Content after Exposure to UV-B Radiation

  AUTHORS: David Willmon, Amith R. Devireddy, Madhuri Inupakutika, Naveen Puppala, Youngkoo Cho

  KEYWORDS: Abiotic Stress, Arachis hypogaea L., Trigonelline, UV-B

  JOURNAL NAME: American Journal of Plant Sciences, Vol.8 No.5, April 20, 2017

  ABSTRACT: UV-B radiation has been widely documented as a stressor for plants that can cause decreased biomass, reduction in photosynthesis, and oxidative stress. Trigonelline is a secondary metabolite that is biosynthesized in some plants in response to abiotic stress such as UV-B irradiation. The objectives of this study were to examine biochemical stress responses for peanut plants (Arachis hypogaea L.) of four different genotypes (Spanish, Valencia, Virginia, and Runner) after exposure at various lengths to UV-B radiation and to examine the alteration of trigonelline biosynthesis due to the age of the plants. Peanut plants from the genotypes were exposed to UV-B radiation at three exposure times (60, 120, and 180 min); plants from two growth stages, the flowering (R1) and early maturity (R7), were used. Significant positive correlations (rs 0.29-0.74, P≤0.05) were found for trigonelline concentrations and UV-B exposure times. With longer exposure times of 180 min for plants at R7, trigonelline biosynthesis began as early as 10 days after treatment with 154.6 μg·g-1 DW and remained or increased by up to 71.5 μg·g-1 DW (46.3%) throughout the sampling intervals (10, 20, 30, 40, and 50 days after treatment) to a final value of 226.1 μg·g-1 DW. All four genotypes at R7 exhibited trigonelline concentrations 47.3% to 52.4% (71.6 to 96.5 μg·g-1 DW) higher than individuals at R1. Trigonelline biosynthesis at R7 was significantly (PPP