Surface chemical defence of the eelgrass Zostera marina against microbial foulers

Scientific Reports
Stefano PapazianDeniz Tasdemir

Abstract

Plants rely on both mechanical and chemical defence mechanisms to protect their surfaces against microorganisms. The recently completed genome of the eelgrass Zostera marina, a marine angiosperm with fundamental importance for coastal ecosystems, showed that its re-adaptation from land to the sea has led to the loss of essential genes (for chemical communication and defence) and structural features (stomata and thick cuticle) that are typical of terrestrial plants. This study was designed to understand the molecular nature of surface protection and fouling-control strategy of eelgrass against marine epiphytic yeasts. Different surface extraction methods and comparative metabolomics by tandem mass spectrometry (LC-MS/MS) were used for targeted and untargeted identification of the metabolite profiles of the leaf surface and the whole tissue extracts. Desorption electrospray ionization-imaging mass spectrometry (DESI-IMS) coupled with traditional bioassays revealed, for the first time, the unique spatial distribution of the eelgrass surface-associated phenolics and fatty acids, as well as their differential bioactivity against the growth and settlement of epiphytic yeasts. This study provides insights into the complex chemical def...Continue Reading

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Citations

Jun 19, 2019·FEMS Microbiology Letters·Cynthia M GrimLaura M Sanchez
Oct 4, 2020·Marine Drugs·Raquel MateosHerminia Domínguez
Oct 18, 2020·Proceedings of the National Academy of Sciences of the United States of America·Ahmed A ShiblShady A Amin
Nov 15, 2020·Applied and Environmental Microbiology·Lu WangRyan S Mueller
Feb 13, 2021·Plants·Cecilie Sævdal DybslandMonica Jordheim
Oct 17, 2020·The Journal of Eukaryotic Microbiology·Bianca Trevizan SegoviaLaura Wegener Parfrey

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Methods Mentioned

BETA
PCA
light-microscopy

Software Mentioned

MassLynx®
OpenMSI
DESI
GNPS
SIRIUS
Omni Spray 2D
HDImaging
GraphPad Prism
IMS
SIMCA®

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