Triterpene-based plant defenses

González-Coloma⊥, Azucena; López-Balboa, Carmen; Santana, Omar; Reina, Matı́as; Fraga, Braulio M.

doi:10.1007/s11101-010-9187-8

Cited by 92 publications

(61 citation statements)

References 93 publications

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“…There is a previous study in which its inactivity against M. persicae and S. littoralis is reported [40]. The divergence in the result on M. persicae found with the present work may be due to different aphid instars used in the tests.…”

Section: Resultscontrasting

confidence: 72%

Differential Deterrent Activity of Natural Products Isolated from <i>Allophylus edulis</i> (Sapindaceae)

Díaz¹,

Castillo²,

Díaz³

et al. 2014

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The phytochemical study of Uruguayan specimens of Allophylus edulis (Sapindaceae) yielded the isolation of various natural products being some of them reported for the first time in this species. Although most of them are ubiquitous in the plant kingdom, some revealed in this study to have anti insect properties. Two sesquiterpenes (6,7-Epoxicaryophyllene and spathulenol), two phytosterols (sitosterone and sitosterol), a pentacyclic triterpene (lupeol) and a clerodane diterpene were isolated. 6,7-Epoxycaryophyllene, lupeol and sitosterol showed to be deterrent against the aphid Myzus persicae and the coleopteran Epilachna paenulata. Moreover, the crude ethanolic extract of twigs of A. edulis showed to be deterrent against both insect species being some of its fractions also active against another aphid, Rhopalosiphum padi. Various active compounds against different insect models have been isolated from the twigs extract of A. edulis. The results evidenced synergic as well as antagonistic effects in the mixture, summed to differential activity against the insects, a desirable attribute when developing botanical pesticides.

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Section: Resultscontrasting

confidence: 72%

Differential Deterrent Activity of Natural Products Isolated from <i>Allophylus edulis</i> (Sapindaceae)

Díaz¹,

Castillo²,

Díaz³

et al. 2014

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“…In the current study, oleanolic acid (2) was active against the S. granarius, T. confusum and A. obtectus (Tables 3-6 and Figures S2-S4). In accordance with our results, it has been reported that oleanolic acid (3) have toxic effect against Spodoptera frugiperda JE Smith, Spodoptera littoralis, Leptinotersa decemlineata, Myzus persicae and Bemisia tuberculata [56,58,59]. On the other hand, Pungitore et al (2005) indicated that oleanolic acid (2) isolated from Junellia aspera exhibited less toxicity against Sitophilus oryzae (L.) [54].…”

Section: Insecticidal Properties Of the Extracts And Pure Olive Leaf supporting

confidence: 91%

“…However, there have been some reports on insecticidal properties of the leaf extracts and its pure metabolites against various insects species [53][54][55][56][57][58][59][60]. Zia et al (2011) tested the extract of olive leaves against chickpea beetle, Callosobruchus chinensis and they found it active against the beetle [57].…”

Section: Insecticidal Properties Of the Extracts And Pure Olive Leaf mentioning

confidence: 99%

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2019

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Olea europea L. emerged as a good source of traditional medicine for the treatment of various ailments of various countries of the world, in particular Mediterranean countries. In this study, oleuropein (1), oleanolic acid (2), maslinic acid (3), a mixture of erythrodiol and uvaol (4 and 5) isolated from the leaves of olive were added at two concentrations (1g/100g feed and 4g/100 g feed) into fish feed. Oreochromis niloticus (Nile tilapia) were fed twice a day with the feed during 96 hours. The levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP) enzymes and glucose levels in the serums of fishes fed with pure compounds were found to be higher as compared with the control group. Pure metabolites affect the liver metabolism of Nile tilapia. These results suggested that the compounds tested affect the liver metabolism of Nile tilapia. Compounds 1, 2, 3 and 4+5 (2.5, 5.0 and 7.5 mg/Petri dish concentrations) were also tested for contact toxic effects against three important stored pests, Sitophilus granarius (weevil), Tribolium confusum (confused flour beetle) and Acanthoscelides obtectus (bean weevil). The toxic effects of the metabolites were lower than those of the insecticide, dichlorvos (DDVP). DDVP caused complete mortality of the insects after 48 hours of treatments, the metabolites caused the mortality rates T. confusum and A. obtectus, respectively. Maslinic acid (3) has the most toxic compound with the lowest LC 50 values (0.66 mg/Petri, 0.61 mg/Petri and 1.71 mg/Petri for S. granarius, T. confusum and A. obtectus, respectively). These results show that maslinic acid (3) as well as other substances can be used as natural insecticides against these pests.

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“…34 The insectidal activity of a wide range of plant pentacyclic triterpenes from different chemical classes on several insect pests (Spodoptera littoralis, Leptinotarsa decemlineata and Myzus persicae) has been recently reviewed. 471 The presence of different substituents at C-3 and C-28 modulate these insecticidal effects.…”

Section: Triterpenesmentioning

confidence: 99%

Natural Product-Based Biopesticides for Insect Control

González-Coloma⊥

Reina

Díaz

et al. 2013

Reference Module in Chemistry, Molecular Sciences and Chemical Engineering

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Triterpene-based plant defenses

Cited by 92 publications

References 93 publications

Differential Deterrent Activity of Natural Products Isolated from <i>Allophylus edulis</i> (Sapindaceae)

Differential Deterrent Activity of Natural Products Isolated from <i>Allophylus edulis</i> (Sapindaceae)

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Natural Product-Based Biopesticides for Insect Control

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Triterpene-based plant defenses

Cited by 92 publications

References 93 publications

Differential Deterrent Activity of Natural Products Isolated from &lt;i&gt;Allophylus edulis&lt;/i&gt; (Sapindaceae)

Differential Deterrent Activity of Natural Products Isolated from &lt;i&gt;Allophylus edulis&lt;/i&gt; (Sapindaceae)

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Natural Product-Based Biopesticides for Insect Control

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Differential Deterrent Activity of Natural Products Isolated from <i>Allophylus edulis</i> (Sapindaceae)

Differential Deterrent Activity of Natural Products Isolated from <i>Allophylus edulis</i> (Sapindaceae)