Natural Agents Inducing Plant Resistance Against Pests and Diseases

Siah, Ali; Magnin-Robert, Maryline; Randoux, Béatrice; Choma, Caroline; Rivière, Céline; Halama, Patrice; Reignault, Philippe

doi:10.1007/978-3-319-67045-4_6

Cited by 34 publications

(20 citation statements)

References 239 publications

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“…In addition, their approval and registration procedure are very costly, because of the inherent cost of toxicity and environmental suitability assessments [9,187,188]. On a worldwide scale, biopesticides including biocontrol agents and EO are evaluated (as part of approval procedure) through the exact same procedure as their synthetic counterparts and similarly for the registration procedure [12,189,190]. A discussion is however currently initiated towards a relief of the process with a streamlined registration procedure for low-risk products (i.e., products that must not exert toxicity towards non target organisms and have a low persistency in soil [12]).…”

Section: Market and Regulationmentioning

confidence: 99%

Essential Oils as Potential Alternative Biocontrol Products against Plant Pathogens and Weeds: A Review

Raveau

Fontaine

Sahraoui

2020

Foods

309

186

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Naturally produced by aromatic plants, essential oils (EO) contain a wide range of volatile molecules, including mostly secondary metabolites, which possess several biological activities. Essential oils properties such as antioxidant, antimicrobial and anti-inflammatory activities are known for a long time and hence widely used in traditional medicines, cosmetics and food industries. However, despite their effects against many phytopathogenic fungi, oomycetes and bacteria as well as weeds, their use in agriculture remains surprisingly scarce. The purpose of the present review is to gather and discuss up-to-date biological activities of EO against weeds, plant pathogenic fungi, oomycetes and bacteria, reported in the scientific literature. Innovative methods, potentially valuable to improve the efficiency and reliability of EO, have been investigated. In particular, their use towards a more sustainable agriculture has been discussed, aiming at encouraging the use of alternative products to substitute synthetic pesticides to control weeds and plant diseases, without significantly affecting crop yields. An overview of the market and the recent advances on the regulation of these products as well as future challenges to promote their development and wider use in disease management programs is described. Because of several recent reviews on EO insecticidal properties, this topic is not covered in the present review.

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Section: Market and Regulationmentioning

confidence: 99%

Essential Oils as Potential Alternative Biocontrol Products against Plant Pathogens and Weeds: A Review

Raveau

Fontaine

Sahraoui

2020

Foods

309

186

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“…Pseudomonas sp., Trichoderma sp. or arbuscular mycorrhizal fungi (AMF; Siah et al, 2018). This has led to a marked increase of biological control products compared to chemical pesticides, and an increasing number of products entering the market (Dunham & DunhamTrimmer, 2015).…”

Section: Introductionmentioning

confidence: 99%

Transcriptome analysis of mycorrhizal and nonmycorrhizal soybean plantlets upon infection with Fusarium virguliforme, one causal agent of sudden death syndrome

et al. 2019

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Soilborne pathogens represent a threat to agriculture causing important yield losses. Sudden death syndrome (SDS) of soybean is a severe disease caused by a complex of Fusarium species. This pathosystem has been widely investigated and several strategies have been proposed to manage SDS. Although a decrease in symptoms and in the level of root tissue infection, particularly by F. virguliforme, was observed in the presence of arbuscular mycorrhizal fungi (AMF), biological control based on AMF has received less attention. Here, the results are reported of transcriptional analysis of mycorrhizal versus nonmycorrhizal soybean plantlets infected by F. virguliforme, grown under strict in vitro culture experimental conditions. Important transcriptional reprogramming was detected following infection by the pathogen. Results revealed 1768 and 967 differentially expressed genes in the AMF‐colonized (+AMF+Fv) and noncolonized (−AMF+Fv) plants, respectively. Major transcriptional changes corresponded to defence response‐related genes belonging to secondary metabolism, stress and signalling categories. The +AMF+Fv treatment showed the largest number of up‐regulated genes related to defence, such as those encoding disease resistance proteins, WRKY transcription factors, auxins, receptors kinases and proteases. Only a few genes had primed expression in the +AMF+Fv treatment, such as those encoding a thaumatin‐like protein (TLP) and a pleiotropic drug resistance (PDR) protein. Moreover, +AMF+Fv showed a significantly greater number of down‐regulated genes related to cell wall modification and peroxidases than the –AMF+Fv treatment. This detailed investigation increases knowledge of transcriptional changes and potential metabolic pathways involved in the enhanced resistance or tolerance of mycorrhizal plants to infection by F. virguliforme.

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“…The other employed polysaccharide is chitosan, which is a chitin derivative, obtained from the degradation of crustacean or insect exoskeletons or fungi [11,12]. Chitosan is used in many applications, such as biomedical engineering [13][14][15], drug delivery [16][17][18], packaging [19][20][21][22][23], food preservation [24][25][26][27][28][29][30] or farming improvement [31][32][33][34][35]. Chitosan is a biocompatible polymer and is generally recognized as safe.…”

Section: Introductionmentioning

confidence: 99%

Polysaccharide Matrices for the Encapsulation of Tetrahydrocurcumin—Potential Application as Biopesticide against Fusarium graminearum

Loron

Navikaitė-Šnipaitienė

Rosliuk

et al. 2021

Molecules

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Cereals are subject to contamination by pathogenic fungi, which damage grains and threaten public health with their mycotoxins. Fusarium graminearum and its mycotoxins, trichothecenes B (TCTBs), are especially targeted in this study. Recently, the increased public and political awareness concerning environmental issues tends to limit the use of traditional fungicides against these pathogens in favor of eco-friendlier alternatives. This study focuses on the development of biofungicides based on the encapsulation of a curcumin derivative, tetrahydrocurcumin (THC), in polysaccharide matrices. Starch octenylsuccinate (OSA-starch) and chitosan have been chosen since they are generally recognized as safe. THC has been successfully trapped into particles obtained through a spray-drying or freeze-drying processes. The particles present different properties, as revealed by visual observations and scanning electron microscopy. They are also different in terms of the amount and the release of encapsulated THC. Although freeze-dried OSA-starch has better trapped THC, it seems less able to protect the phenolic compound than spray-dried particles. Chitosan particles, both spray-dried and lyophilized, have shown promising antifungal properties. The IC50 of THC-loaded spray-dried chitosan particles is as low as 0.6 ± 0.3 g/L. These particles have also significantly decreased the accumulation of TCTBs by 39%.

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Natural Agents Inducing Plant Resistance Against Pests and Diseases

Cited by 34 publications

References 239 publications

Essential Oils as Potential Alternative Biocontrol Products against Plant Pathogens and Weeds: A Review

Essential Oils as Potential Alternative Biocontrol Products against Plant Pathogens and Weeds: A Review

Transcriptome analysis of mycorrhizal and nonmycorrhizal soybean plantlets upon infection with Fusarium virguliforme, one causal agent of sudden death syndrome

Polysaccharide Matrices for the Encapsulation of Tetrahydrocurcumin—Potential Application as Biopesticide against Fusarium graminearum

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