Whole plant disease severity is associated with reduced polyphenolic concentrations in lesioned but not green tissue in eelgrass
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Plants possess an impressive range of chemical traits to defend themselves against pathogens. Describing and interpreting these traits can provide insight into plant resistance to infection and disease progression. To examine one potentially responsive chemical trait, we measured the polyphenolic content of green and lesioned tissue from Labyrinthula-infected seagrass shoots growing in both the field and a long-term common garden. Infection of eelgrass (Zostera marina) with wasting disease (Labyrinthula zosterae) forms necrotic lesions on host tissue and is known to alter host photobiology and secondary metabolite production. It is common to quantify total polyphenolics as a potential measure of eelgrass defense against infection, yet there is no clear evidence that phenolics are a reliable indicator of host response or immunity. We found that polyphenolic concentrations in green tissue were not correlated with whole-plant lesion cover, while polyphenolic concentrations in lesion tissue..., , , # Whole plant disease severity is associated with reduced polyphenolic concentrations in lesioned but not green tissue in eelgrass [https://doi.org/10.5061/dryad.0cfxpnwc2](https://doi.org/10.5061/dryad.0cfxpnwc2) ## Description of the data and file structure **GENERAL INFORMATION** Title of Dataset: Whole plant disease severity is associated with reduced polyphenolic concentrations in lesioned but not green tissue in eelgrass Author Information Name: Naomi Murray ORCID: 0000-0002-4343-6264 Institution: University of California, Davis Email: [naomiamurray@gmail.com](mailto:naomiamurray@gmail.com) Principal Investigator Information Name: Jay Stachowicz ORCID: 0000-0003-2735-0564 Institution: University of California, Davis Email: [jjstachowicz@ucdavis.edu](mailto:jjstachowicz@ucdavis.edu) Date of data collection: between July 2020 and July 2021 Geographic location of data collection: Bodega Bay, California, USA METHODOLOGICAL INFORMATION Methods for collecting, generating, and...
