Volatile organic compounds produced by castor bean cake incorporated into the soil exhibit toxic activity against <i>Meloidogyne incognita</i>

Pedroso, Luma Alaís; Campos, Vicente Paulo; Pedroso, Márcio Pozzobon; Barros, Aline Ferreira; Freire, Eduardo Souza; Resende, Franciely Mp

doi:10.1002/ps.5142

Cited by 35 publications

(14 citation statements)

References 26 publications

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“…They also showed in a sterile system that the microbes attaching to the cuticle of M. hapla in the suppressive soil induced systemic resistance in the plant upon nematode invasion (Topalović et al, 2020a). In addition, in recent years scientists have intensively explored the role of plant and microbial volatile organic compounds on nematode parasitism (Huang et al, 2010;Yang et al, 2012;Barros et al, 2014;Xu et al, 2015;Estupiñan-López et al, 2018;Silva et al, 2018;Pedroso et al, 2019). Thus, the potential of root microbiota to assist plants in fighting PPN is enormous.…”

Section: Importance Of the Rhizosphere Microbiota In Plant-nematode Imentioning

confidence: 99%

Plants and Associated Soil Microbiota Cooperatively Suppress Plant-Parasitic Nematodes

2020

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Disease suppressive soils with specific suppression of soil-borne pathogens and parasites have been long studied and are most often of microbiological origin. As for the plant-parasitic nematodes (PPN), which represent a huge threat to agricultural crops and which successfully defy many conventional control methods, soil progression from conducive to suppressive state is accompanied by the enrichment of specific antagonistic microbial consortia. However, a few microbial groups have come to the fore in diminishing PPN in disease suppressive soils using culture-dependent methods. Studies with cultured strains resulted in understanding the mechanisms by which nematodes are antagonized by microorganisms. Recent culture-independent studies on the microbiome associated with soil, plant roots, and PPN contributed to a better understanding of the functional potential of disease suppressive microbial cohort. Plant root exudation is an important pathway determining host-microbe communication and plays a key role in selection and enrichment of a specific set of microbial antagonists in the rhizosphere as first line of defense against crop pathogens or parasites. Root exudates comprising primary metabolites such as amino acids, sugars, organic acids, and secondary metabolites can also cause modifications in the nematode surface and subsequently affect microbial attachment. A positive interaction between hosts and their beneficial root microbiota is correlated with a low nematode performance on the host. In this review, we first summarized the historical records of nematodesuppressive soils and then focused on more recent studies in this aspect, emphasizing the advances in studying nematode-microbe interactions over time. We highlighted nematode biocontrol mechanisms, especially parasitism, induced systemic resistance, and volatile organic compounds using microbial consortia, or bacterial strains of the genera Pasteuria, Bacillus, Pseudomonas, Rhizobium, Streptomyces, Arthrobacter, and Variovorax, or fungal isolates of Pochonia, Dactylella, Nematophthora, Purpureocillium, Trichoderma, Hirsutella, Arthrobotrys, and Mortierella. We discussed the importance of root exudates in plant communication with PPN and soil microorganisms, emphasizing their role in microbial attachment to the nematode surface and subsequent events of

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Section: Importance Of the Rhizosphere Microbiota In Plant-nematode Imentioning

confidence: 99%

Plants and Associated Soil Microbiota Cooperatively Suppress Plant-Parasitic Nematodes

2020

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“…exposure of M. incognita second‐stage juveniles (J 2 ) to 3‐methylbutyl acetate at 500 μg mL 1 for 1 h caused mortality above 84% . In recent years, studies on the use of plant VOCs against PPNs have expanded . Biofumigation, consisting of the incorporation of plant residues that slowly release their bioactive compounds into the soil, has been successfully used to control PPNs since the 19th century .…”

Section: Introductionmentioning

confidence: 99%

“…In the last decade, studies addressing VOCs released by plant residues have revealed a number of molecules with nematicidal activity similar to commercial nematicides, therefore further studies are needed to identify VOCs emitted in biofumigation processes. Volatiles toxic to PPNs can be determined when VOCs are identified from plant emissions and individually tested against specific PPNs, enabling the discovery of new nematicidal compounds with high environmental and health safety …”

Section: Introductionmentioning

confidence: 99%

“…7,13 In recent years, studies on the use of plant VOCs against PPNs have expanded. 6,7,[14][15][16] Biofumigation, consisting of the incorporation of plant residues that slowly release their bioactive compounds into the soil, has been successfully used to control PPNs since the 19th century. 17 Compounds resulting from field biofumigation have proven nematicidal activities, and the best example is isothiocyanates emitted by brassicas.…”

Section: Introductionmentioning

confidence: 99%

“…Volatiles toxic to PPNs can be determined when VOCs are identified from plant emissions and individually tested against specific PPNs, enabling the discovery of new nematicidal compounds with high environmental and health safety. 7,16,21 Some aspects regarding plant residue incorporation in agricultural soils should be considered. From a practical point of view, irrigation after plant residue incorporation temporarily holds the VOCs in the soil, avoiding losses to the atmosphere and increasing the chances of PPN control, mainly because the volatile molecules are diluted in water.…”

Section: Introductionmentioning

confidence: 99%

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Volatile emissions of watercress (Nasturtium officinale) leaves and passion fruit (Passiflora edulis) seeds against Meloidogyne incognita

Silva

Campos

Barros

et al. 2019

Pest Management Science

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BACKGROUND Plants emit volatile organic compounds (VOCs) with several functions, including toxicity to plant‐parasitic nematodes (PPNs). However, the toxicity of VOCs from watercress leaves (Nasturtium officinale) and passion fruit seeds (Passiflora edulis) against PPNs has not yet been studied. RESULTS Biofumigation with watercress leaves and passion fruit seeds reduced the infectivity and reproduction of Meloidogyne incognita in tomato plants. The VOCs emitted by watercress leaves and passion fruit seeds caused immobility of M. incognita second‐stage juveniles (J2). The reduction in infectivity and reproduction of M. incognita reached 89% and 99%, respectively, when J2 were exposed to watercress VOCs. Additionally, water exposed to VOCs emitted by watercress caused 79% M. incognita J2 mortality. The volatilome of the toxic water contained 12 compounds, mainly alcohols. The emissions from watercress leaves and passion fruit seeds contained 26 and 12 compounds, respectively, according to gas chromatography–mass spectrometry analysis. The 1‐octanol occurring in watercress emissions demonstrated in vitro and in vivo nematicidal activity against M. incognita, with a lethal dose necessary to cause 50% mortality (LC50) of 382.5 μg mL−1. CONCLUSIONS Watercress leaf and passion fruit seed macerates emitted VOCs with nematicidal activity against M. incognita. The compound 1‐octanol identified in watercress emissions may be useful for the nematicide‐producing industry. © 2019 Society of Chemical Industry

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Bioactive Phytochemicals from Castor (Ricinus communis Linneo) Seed Oil Processing By-products

Cheikhyoussef¹,

Cheikhyoussef

2022

Reference Series in Phytochemistry

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Volatile organic compounds produced by castor bean cake incorporated into the soil exhibit toxic activity against Meloidogyne incognita

Abstract: Castor bean cake incorporated into the soil produces volatile compounds which are toxic to M. incognita. These substances show potential for application in the nematicide-producing industry. © 2018 Society of Chemical Industry.

Cited by 35 publications

References 26 publications

Plants and Associated Soil Microbiota Cooperatively Suppress Plant-Parasitic Nematodes

Plants and Associated Soil Microbiota Cooperatively Suppress Plant-Parasitic Nematodes

Volatile emissions of watercress (Nasturtium officinale) leaves and passion fruit (Passiflora edulis) seeds against Meloidogyne incognita

Bioactive Phytochemicals from Castor (Ricinus communis Linneo) Seed Oil Processing By-products

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