Seasonal induction of alternative principal pathway for rose flower scent

Scientific Reports
Hiroshi HirataNaoharu Watanabe

Abstract

Ecological adaptations to seasonal changes are often observed in the phenotypic traits of plants and animals, and these adaptations are usually expressed through the production of different biochemical end products. In this study, ecological adaptations are observed in a biochemical pathway without alteration of the end products. We present an alternative principal pathway to the characteristic floral scent compound 2-phenylethanol (2PE) in roses. The new pathway is seasonally induced in summer as a heat adaptation that uses rose phenylpyruvate decarboxylase (RyPPDC) as a novel enzyme. RyPPDC transcript levels and the resulting production of 2PE are increased time-dependently under high temperatures. The novel summer pathway produces levels of 2PE that are several orders of magnitude higher than those produced by the previously known pathway. Our results indicate that the alternative principal pathway identified here is a seasonal adaptation for managing the weakened volatility of summer roses.

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Citations

Jun 15, 2016·Bioscience, Biotechnology, and Biochemistry·Hiroshi HirataNaoharu Watanabe
Oct 19, 2017·DNA Research : an International Journal for Rapid Publication of Reports on Genes and Genomes·Noriko NakamuraYoshikazu Tanaka
Jan 17, 2019·Plant & Cell Physiology·Sam D Cook
Jul 2, 2019·The New Phytologist·Monica BorghiAlisdair R Fernie
May 10, 2019·Horticulture Research·Marinus J M SmuldersFabrice Foucher

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Methods Mentioned

BETA
environmental stress
environmental stresses
PCR
electrophoresis
RNA-Seq

Software Mentioned

Agilent ChemStation
CLC Genomics Workbench

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