Toxicity of pure compounds isolated from<i>Tagetes minuta</i>oil to<i>Meloidogyne incognita</i>

Adekunle, O. K.; Acharya, Ruchi; Singh, Bikram

doi:10.1071/dn07042

Cited by 23 publications

(7 citation statements)

References 11 publications

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“…The insecticidal and phytotoxic potential of this terpene has been previously demonstrated [9,13]. On the other hand, dihydrotagetone and (Z)-βocimene showed nematicidal activity against eggs and juveniles of M. incognita [14]. To our knowledge, this is the first report on the nematicidal effect of an essential oil rich in (E)-ocimenone.…”

supporting

confidence: 53%

Nematicidal Activity of the Essential Oil of Three Varieties of Tagetes minuta from Argentina

Massuh

Cruz-Estrada

González-Coloma⊥

et al. 2017

Natural Product Communications

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Essential oils composition of three Tagetes minuta varieties and a wild population (WP) from Argentina and their in vitro and in vivo nematicidal activity against root-knot nematode, Meloidogyne javanica, are described. All T. minuta EOs tested were very active against nematode juveniles (J2), but the strongest nematicidal effects were exhibited by the TmV3 variety oil, characterized by a high content of (E)-ocimenone. High nematode egg hatching suppression (> 90%) was induced by TmV3 EO after five days of incubation. In vivo tests on tomato seedlings showed a significant reduction of infection rate of M. javanica J2 treated with TmV3 and WP oils at sub lethal dose. Therefore, EOs from chemically stable new varieties of T. minuta could be environmentally friendly nematicidal agents.

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supporting

confidence: 53%

Nematicidal Activity of the Essential Oil of Three Varieties of Tagetes minuta from Argentina

Massuh

Cruz-Estrada

González-Coloma⊥

et al. 2017

Natural Product Communications

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“…Other typical compounds found in the genus Tagetes such as ( Z )‐tagetone (4.7%), ( E )‐tagetone (2.3%), and spathulenol (1.7%) also appear in high levels. Compounds such as ( Z )‐ β ‐ocimene (1.1%) and dihydrotagetone (0.4%) are present in lower levels; these two compounds were isolated by Adekunle et al . from Tagetes minuta essential oil and were reported to have suitable anthelmintic activities against the root‐knot nematode Meloidogyne incognita .…”

Section: Resultsmentioning

confidence: 99%

Chemical Composition andIn vitroAnthelmintic Activity of Extracts ofTagetes patulaAgainst a Multidrug‐Resistant Isolate ofHaemonchus contortus

Politi

Júnior

Fantatto

et al. 2018

Chemistry & Biodiversity

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Sheep breeding has suffered economic losses due to parasitism by gastrointestinal nematodes, particularly Haemonchus contortus. The use of natural products, specifically Tagetes patula, has been suggested as an alternative method of combatting this issue. Chemical analyses of the extracts of this species described in the literature report the presence of important classes of secondary metabolites such as thiophenes, flavonoids, alkaloids, and benzofurans, some of which were identified and isolated in this study. The aim of this work was to test the effect of the essential oil (EO) and the ethanolic extract of the aerial parts (Tp ) of T. patula on eggs and larvae of H. contortus, through an egg hatch test (EHT) and a larval development test (LDT). In the EHT, the EO showed 100% inhibition at 0.75 mg mL (LC = 0.0780 mg mL ), and the Tp showed 100% inhibition at 100 mg mL (LC = 12.8 mg mL ). In the LDT, the EO showed 100% inhibition at 0.375 mg mL (LC = 0.0400 mg mL ), and the Tp showed 100% inhibition at 1.56 mg mL (LC = 0.340 mg mL ). Compared to available literature data, the results presented here suggest that the crude extracts of T. patula have substantial potential for controlling this nematode by interrupting its life cycle and/or preventing it from reaching the infective stage.

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“…(E)-Ocimenone, the principal component of Tagetes minuta essential oil, may play a major role in nematicidal activity against M. javanica [45]. Furthermore, another study reported that dihydrotagetone and (Z)-β-ocimene, which are also components of the essential oil of T. minuta, have certain nematicidal activities against M. incognita [46]. The volatile nematicidal component against M. javanica of Eupatorium viscidum has been found to be 6-methyl-5-hepten-2-one [47].…”

Section: Nematicidal Vocs From Asteraceaementioning

confidence: 99%

Nematicidal Effects of Volatile Organic Compounds from Microorganisms and Plants on Plant-Parasitic Nematodes

Deng

Wang

2022

Microorganisms

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Plant-parasitic nematodes (PPNs) are one of the most destructive plant pathogens worldwide, and controlling them is extremely challenging. Volatile organic compounds (VOCs), which naturally exist in plants and microorganisms, play an important role in the biological control of PPNs and are considered potential substances for the development of commercial nematicides. This paper summarizes the VOCs produced by microorganisms and plants as well as their toxic effects on PPNs. VOCs from 26 microbial strains and 51 plants that are active against nematodes from over the last decade were reviewed. Furthermore, the mechanisms of toxicity of some VOCs against PPNs are also illustrated.

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Toxicity of pure compounds isolated fromTagetes minutaoil toMeloidogyne incognita

Cited by 23 publications

References 11 publications

Nematicidal Activity of the Essential Oil of Three Varieties of Tagetes minuta from Argentina

Nematicidal Activity of the Essential Oil of Three Varieties of Tagetes minuta from Argentina

Chemical Composition andIn vitroAnthelmintic Activity of Extracts ofTagetes patulaAgainst a Multidrug‐Resistant Isolate ofHaemonchus contortus

Nematicidal Effects of Volatile Organic Compounds from Microorganisms and Plants on Plant-Parasitic Nematodes

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