Issue 10, 2015

First detection of the presence of naturally occurring grapevine downy mildew in the field by a fluorescence-based method

Abstract

Early detection of fungal pathogen presence in the field would help to better time or avoid some of the fungicide treatments used to prevent crop production losses. We recently introduced a new phytoalexin-based method for a non-invasive detection of crop diseases using their fluorescence. The causal agent of grapevine downy mildew, Plasmopara viticola, induces the synthesis of stilbenoid phytoalexins by the host, Vitis vinifera, early upon infection. These stilbenoids emit violet-blue fluorescence under UV light. A hand-held solid-state UV-LED-based field fluorimeter, named Multiplex 330, was used to measure stilbenoid phytoalexins in a vineyard. It allowed us to non-destructively detect and monitor the naturally occurring downy mildew infections on leaves in the field.

Graphical abstract: First detection of the presence of naturally occurring grapevine downy mildew in the field by a fluorescence-based method

Supplementary files

Article information

Article type
Communication
Submitted
26 Mar 2015
Accepted
27 Jul 2015
First published
07 Aug 2015

Photochem. Photobiol. Sci., 2015,14, 1807-1813

Author version available

First detection of the presence of naturally occurring grapevine downy mildew in the field by a fluorescence-based method

G. Latouche, C. Debord, M. Raynal, C. Milhade and Z. G. Cerovic, Photochem. Photobiol. Sci., 2015, 14, 1807 DOI: 10.1039/C5PP00121H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Spotlight

Advertisements