Nematicidal activity of the alkaloids from Macleaya cordata against certain nematodes

Wang, Kui; Luo, Chen; Líu, Hao; Xu, Jianmei; Sun, Weibo; Zhou, Ligang

doi:10.5897/ajar11.1940

Cited by 22 publications

(6 citation statements)

References 21 publications

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“…In agreement with our results, an increase in α-tomatine levels has been reported in tomato plants infected by M. incognita at the galling stage (Elliger et al, 1988). The induction of steroidal glycoalkaloids is associated with enhanced resistance to root infecting plant-parasitic nematodes (Wang et al, 2012;Jang et al, 2015). Therefore, the relevance of the increased steroidal glycoalkaloid levels in the present study remains unclear.…”

Section: Discussionsupporting

confidence: 90%

Induced Local and Systemic Defense Responses in Tomato Underlying Interactions Between the Root-Knot Nematode Meloidogyne incognita and the Potato Aphid Macrosiphum euphorbiae

et al. 2021

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Plants mediate interactions between different herbivores that attack simultaneously or sequentially aboveground (AG) and belowground (BG) organs. The local and systemic activation of hormonal signaling pathways and the concomitant accumulation of defense metabolites underlie such AG-BG interactions. The main plant-mediated mechanisms regulating these reciprocal interactions via local and systemic induced responses remain poorly understood. We investigated the impact of root infection by the root-knot nematode (RKN) Meloidogyne incognita at different stages of its infection cycle, on tomato leaf defense responses triggered by the potato aphid Macrosiphum euphorbiae. In addition, we analyzed the reverse impact of aphid leaf feeding on the root responses triggered by the RKN. We focused specifically on the signaling pathways regulated by the phytohormones jasmonic acid (JA), salicylic acid (SA), abscisic acid (ABA), and indole-3-acetic acid (IAA) as well as steroidal glycoalkaloids as induced defense compounds. We found that aphid feeding did not induce AG hormonal signaling, but it repressed steroidal glycoalkaloids related responses in leaves, specifically when feeding on plants in the vegetative stage. Root infection by the RKN impeded the aphid-triggered repression of the steroidal glycoalkaloids-related response AG. In roots, the RKN triggered the SA pathway during the entire infection cycle and the ABA pathway specifically during its reproduction stage. RKN infection also elicited the steroidal glycoalkaloids related gene expression, specifically when it was in the galling stage. Aphid feeding did not systemically alter the RKN-induced defense responses in roots. Our results point to an asymmetrical interaction between M. incognita and Ma. euphorbiae when co-occurring in tomato plants. Moreover, the RKN seems to determine the root defense response regardless of a later occurring attack by the potato aphid AG.

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Section: Discussionsupporting

confidence: 90%

Induced Local and Systemic Defense Responses in Tomato Underlying Interactions Between the Root-Knot Nematode Meloidogyne incognita and the Potato Aphid Macrosiphum euphorbiae

et al. 2021

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“…This might be the reason why the seeds secreted alkaloids. In addition, some alkaloids have been shown to have nematocidal activities. , For instance, isoquinoline alkaloids from Macleaya cordata against certain nematodes . The alkaloid serpentine has been found to induce death and inhibit the hatching of M.…”

Section: Results and Discussionmentioning

confidence: 99%

“…12,42 For instance, isoquinoline alkaloids from Macleaya cordata against certain nematodes. 43 The alkaloid serpentine has been found to induce death and inhibit the hatching of M. incognita. 42 The nematodes can rely on their polymodal nociceptive neuron ASH to detect and avoid toxic compounds, especially some alkaloids.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Constituents Leached by Tomato Seeds Regulate the Behavior of Root-Knot Nematodes and Their Antifungal Effects against Seed-Borne Fungi

Kuang

Liu

et al. 2020

J. Agric. Food Chem.

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Germinating seeds can release diverse phytochemicals that repel, inhibit, or kill pathogens such as root-knot nematodes and seed-borne fungi. However, little is known about the composition of these phytochemicals and their effects on pathogens. In this study, we demonstrated that tomato seed exudates can attract the nematode Meloidogyne incognita using a dualchoice assay. Eighteen compounds were then isolated and identified from the exudates. Of these, esters (1−3), fatty acids (4−6), and phenolic acids (10−12) were proven to be the signaling molecules that facilitated the host-seeking process of second-stage juveniles (J2s) of nematodes, while alkaloids (17 and 18) disrupted J2s in locating their host. Furthermore, some phenolic acids and alkaloids showed antifungal effects against seed-borne fungi. In particular, ferulic acid (12) showed obvious activity against Aspergillus flavus (minimum inhibitory concentration (MIC), 32 μg/mL), while dihydrocapsaicin (17) showed noticeable activity against Fusarium oxysporum (MIC, 16 μg/mL). Overall, this study presents the first evidence that M. incognita can be attracted to or deterred by various compounds in seed exudates through identification of the structures of the compounds in the exudates and analysis of their effects on nematodes. Furthermore, some antifungal compounds were also found. The findings of this work suggest that seed exudates are new source for finding insights into the development of plant protective substances with nematocidal and antifungal effects.

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“…Furthermore, it exhibits insecticidal activity against a wide range of other insects, including flies, maggots, and fecal nematodes (10). Four isoquinoline alkaloids, namely SA, CHE, PRO, and ALL, were isolated from the crude alkaloid extract of the aerial parts of Macleaya cordata by Kui et al (18). Among them, SA, CHE, and ALL exhibited nematocidal activity against Bursaphelenchus xylophilus, Caenorhabditis elegans, and Meloidogyne incognita.…”

Section: Anticancer Activitymentioning

confidence: 99%

Biological activity of Macleaya cordata and its application in pig industry

HAN,

YANG,

et al. 2024

Medycyna Weterynaryjna

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Macleaya cordata is rich in alkaloids and exhibits diverse biological activities, which explains its worldwide distribution and utilization. This paper provides an overview of those alkaloids, their solubility and stability, as well as various biological activities, including antibacterial, anti-inflammatory, anticancer, and insecticidal properties. It also focuses on research into Macleaya cordata and on the application of that plant and its bioactive components in the pig industry as potential alternatives to antibiotics in feed, as well as in prevention and treatment of diseases, especially diarrhea. This paper reviews the alkaloids contained in Macleaya cordata, their biological characteristics and application in the pig industry, hoping to provide a valuable reference for further research on the utilization of Macleaya cordata and its bioactive ingredients in the pig industry and in animal husbandry in general.

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Nematicidal activity of the alkaloids from Macleaya cordata against certain nematodes

Cited by 22 publications

References 21 publications

Induced Local and Systemic Defense Responses in Tomato Underlying Interactions Between the Root-Knot Nematode Meloidogyne incognita and the Potato Aphid Macrosiphum euphorbiae

Induced Local and Systemic Defense Responses in Tomato Underlying Interactions Between the Root-Knot Nematode Meloidogyne incognita and the Potato Aphid Macrosiphum euphorbiae

Constituents Leached by Tomato Seeds Regulate the Behavior of Root-Knot Nematodes and Their Antifungal Effects against Seed-Borne Fungi

Biological activity of Macleaya cordata and its application in pig industry

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