RRC ID 67530
Author Liao P, Ray S, Boachon B, Lynch JH, Deshpande A, McAdam S, Morgan JA, Dudareva N.
Title Cuticle thickness affects dynamics of volatile emission from petunia flowers.
Journal Nat Chem Biol
Abstract The plant cuticle is the final barrier for volatile organic compounds (VOCs) to cross for release to the atmosphere, yet its role in the emission process is poorly understood. Here, using a combination of reverse-genetic and chemical approaches, we demonstrate that the cuticle imposes substantial resistance to VOC mass transfer, acting as a sink/concentrator for VOCs and hence protecting cells from the potentially toxic internal accumulation of these hydrophobic compounds. Reduction in cuticle thickness has differential effects on individual VOCs depending on their volatility, and leads to their internal cellular redistribution, a shift in mass transfer resistance sources and altered VOC synthesis. These results reveal that the cuticle is not simply a passive diffusion barrier for VOCs to cross, but plays the aforementioned complex roles in the emission process as an integral member of the overall VOC network.
Volume 17(2)
Pages 138-145
Published 2021-2-1
DOI 10.1038/s41589-020-00670-w
PII 10.1038/s41589-020-00670-w
PMID 33077978
MeSH Down-Regulation Flowers / chemistry* Genes, Plant / genetics Petunia / chemistry* Phenylalanine / chemistry RNA Interference Solvents Volatile Organic Compounds / chemistry*
IF 12.587
Morning Glory 花弁特異的発現ベクター