Induced Resistance in Plants against Pests and Pathogens for Sustainable Crop Bioprotection

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Pest and Disease Management".

Deadline for manuscript submissions: closed (21 July 2022) | Viewed by 6963

Special Issue Editors


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Guest Editor
UMR-t 1158 BioEcoAgro, Junia – University of Lille, 59000 Lille, France
Interests: plant physiology; plant molecular biology and biochemistry; plant protection; plant-microbe interactions; plant immunity; phytopathology

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Guest Editor
UCEIV-EA 4492, Université du Littoral Côte d'Opale, Dunkerque, ULCO, France
Interests: phytopathology; induced resistance; plant defense mechanisms; crop bioprotection; biocontrol; biopesticides; plant physiology; plant biochemistry; plant molecular biology

E-Mail Website
Guest Editor
UMR-t 1158 BioEcoAgro, Junia – University of Lille, 59000 Lille, France
Interests: phytopathology; crop protection; biological control (biocontrol) of plant pathogens; plant–pathogen interactions; plant immunity; plant resistance inducers; plant defense mechanisms; biopesticides

Special Issue Information

Dear Colleagues,

In the current global context, which promotes sustainable agriculture and healthy food, research on eco-friendly crop protection tools that align with the principles of agroecology is strongly encouraged. Natural plant resistance inducers, which improve plant protection against biotic stresses through the activation of the plant immune response, are considered as a promising biosolution that can contribute to meeting such a challenge. The proposed Special Issue of Agronomy “Induced Resistance in Plants against Pests and Pathogens for Sustainable Crop Bioprotection” will focus on the recent advances in this area and is targeting all scientists and agronomists whose work focuses on this concept. Particular attention will be given to the recent discoveries regarding plant resistance induced by beneficial microorganisms (fungi, bacteria, viruses) and natural substances (microbial metabolites or extracts, plant/algal metabolites or extracts, bio-sourced or bio-inspired compounds, minerals, etc.), and the mechanisms underlying plant defense elicitation and priming. Both fundamental and applied research works performed in laboratory and/or field conditions, using non-formulated and/or formulated compounds, will be covered by this Special Issue of Agronomy.

Dr. Pauline Trapet
Dr. Béatrice Randoux
Prof. Dr. Ali Siah
Guest Editors

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Published Papers (2 papers)

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Research

15 pages, 13456 KiB  
Article
Phytotoxicity and Plant Defence Induction by Cinnamomum cassia Essential Oil Application on Malus domestica Tree: A Molecular Approach
by Pierre-Yves Werrie, Anthony Juillard, Christelle Heintz, Marie-Noëlle Brisset and Marie-Laure Fauconnier
Agronomy 2022, 12(2), 512; https://doi.org/10.3390/agronomy12020512 - 18 Feb 2022
Cited by 7 | Viewed by 2704
Abstract
Essential oils (EOs) are actively investigated as an alternative to numerous synthetic biocide products. Due to their large spectra of biological activities, the impact of EOs on non-target organisms should be characterized for biopesticide development purposes. In this study the potential phytotoxicity of [...] Read more.
Essential oils (EOs) are actively investigated as an alternative to numerous synthetic biocide products. Due to their large spectra of biological activities, the impact of EOs on non-target organisms should be characterized for biopesticide development purposes. In this study the potential phytotoxicity of Cinnamomum cassia EO (CEO) on apple trees (Malus domestica) was investigated in terms of oxidative burst (glutathione redox state) and damage (malondialdehyde). At 2%, CEO concentration the reduced glutathione leaf content drops from 269.6 ± 45.8 to 143 ± 28.4 nmol g−1FW, after 30 min, illustrating a rapid and strong oxidative burst. Regarding oxidative damage, malondialdehyde increased significantly 24 h post application to 10.7 ± 3.05 nmol g−1FW. Plant defence induction was previously suspected after trans-cinnamaldehyde (CEO main compound) application. Therefore, the elicitor potential was investigated by qRT-PCR, on the expression level of 29 genes related to major defence pathways (PR protein, secondary metabolism, oxidative stress, parietal modification). Multivariate analysis and increased expression levels suggest induction of systemic resistance. Hence, the present research illustrates the dose–dependent phytotoxicity of CEO in terms of lipid peroxidation. Transcriptional data illustrates the elicitor properties of CEO. These findings can help to design pest management strategies considering both their risks (phytotoxicity) and benefits (defence activation combined with direct biocide properties). Full article
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17 pages, 2018 KiB  
Article
Foliar Application of a Tagatose-Based Product Reduces Downy Mildew Symptoms through Induction of Grapevine Resistance and Anti-Oomycete Action
by Nikola Mijailovic, Andrea Nesler, Michele Perazzolli, Aziz Aziz and Ait Barka Essaïd
Agronomy 2022, 12(2), 498; https://doi.org/10.3390/agronomy12020498 - 17 Feb 2022
Cited by 6 | Viewed by 3122
Abstract
Downy mildew caused by the oomycete Plasmopara viticola represents one of the most devastating diseases in vineyards. Current ways to control this disease rely mainly on fungicide applications, but agro-ecological concerns have raised interest in sustainable alternative methods. Certain rare sugars, like D-tagatose, [...] Read more.
Downy mildew caused by the oomycete Plasmopara viticola represents one of the most devastating diseases in vineyards. Current ways to control this disease rely mainly on fungicide applications, but agro-ecological concerns have raised interest in sustainable alternative methods. Certain rare sugars, like D-tagatose, have shown efficacy in reducing various plant diseases, including grapevine downy mildew. However, the mechanism of action of D-tagatose against grapevine downy mildew is not understood. The aim of this study was to characterize the efficacy and mechanism of action of a D-tagatose-based formulated product (IFP48) against grapevine downy mildew and compare it with the correspondent active molecule, pure D-tagatose (TAG). Whereas IFP48 root treatment provided scarce protection, the leaf treatment was the most efficient, especially at the dosage of 5 g/L. In particular, IFP48 treatment directly inhibited P. viticola sporangia germination, upregulated the expression of defense-related genes, and increased the content of stilbene phytoalexins. Conversely, the expression of defense-related genes and the content of stilbene phytoalexins were only slightly affected by TAG, suggesting that the formulation possibly improved D-tagatose effects against downy mildew in grapevine. Full article
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