Antimicrobial Activity of Neotropical Wood and Bark Extracts

Rovira, Ivelisse; Berkov, Amy; Parkinson, Ainsley; Tavakilian, Gérard; Mori, Scott A.; Meurer-Grimes, Barbara

doi:10.1076/phbi.37.3.208.6297

Cited by 14 publications

(8 citation statements)

References 6 publications

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“…We suggest that the wood tissue resistance was due to the presence of fungus inhibitory extractives. Rovira et al (1999) also observed that I. alba bark is composed of polyphenolics and catechic tannin. These compounds are known for their biological activity, and it is possible that some of these compounds are also present in the wood.…”

Section: Diversity Of the Decay Resistance Strategy In Three Durable mentioning

confidence: 87%

Diversity of decay resistance strategies of durable tropical woods species: Bocoa prouacencsis Aublet, Vouacapoua americana Aublet, Inga alba (Sw.) Wild

Amusant¹,

Nigg²,

Thibaut³

et al. 2014

International Biodeterioration & Biodegradation

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International audienceThe study of decay resistance in wood is of interest for wood end-users but also for the global carbon balance since wood biodegradation is a key driver of forest ecosystem functioning through its impacts on carbon and nutrient cycling. We studied the density and wood extractive contents in order to understand decay resistance against soil microflora after 90 days exposure of sapwood and heartwood from three Neotropical wood species known for their decay resistance: Bocoa prouacensis, Vouacapoua americana, Inga alba. Decay resistance was correlated with density more than wood extractive content. The results highlighted different decay resistance strategies. In B. prouacensis, both sapwood and heartwood were highly resistant due to the high density and high content of antifungal wood extractives. In V. americana heartwood, decay resistance was due to the high synergistic-acting wood extractive content. Conversely, with the least dense wood species I. alba, we found that decay resistance was due to the antifungal wood extractives synthesized early in the sapwood. In conclusion, we showed that the three wood species with the same level of heartwood decay resistance performance had different decay resistance strategies according to the anatomic and defensive wood traits

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Section: Diversity Of the Decay Resistance Strategy In Three Durable mentioning

confidence: 87%

Diversity of decay resistance strategies of durable tropical woods species: Bocoa prouacencsis Aublet, Vouacapoua americana Aublet, Inga alba (Sw.) Wild

Amusant¹,

Nigg²,

Thibaut³

et al. 2014

International Biodeterioration & Biodegradation

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“…Branches were severed from five (dry season) or four (rainy season) trees per species using rope climbing techniques (Perry, 1978). Wood and bark samples have been evaluated for their antimicrobial properties (Rovira et al, 1999) and a preliminary analysis of compounds potentially involved in host selection (Berkov, Meurer-Grimes & Purzycki, 2000). Each cage was checked daily.…”

Section: Rearing Experimentsmentioning

confidence: 99%

The impact of redefined species limits in Palame (Coleoptera: Cerambycidae: Lamiinae: Acanthocinini) on assessments of host, seasonal, and stratum specificity

Berkov

2002

Biol J Linn Soc

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Assumptions about the host and stratum specificity of tropical insects are routinely incorporated into estimates of global species richness, but few empirical studies reliably assess tropical insect specificity. In French Guiana, cerambycid beetles in the genus Palame reproduce exclusively in trees belonging to the Brazil nut family (Lecythidaceae). During a year-long rearing project, Palame anceps (Bates) emerged exclusively from a single host species, but l? crassimana Bates and l? mimetica Monn6 appeared to make seasonal changes in host affiliation. In the case of €? crassimana, dry season specimens could be distinguished from rainy season specimens by subtle differences in pubescence, but it was difficult to find diagnostic morphological characters supporting their delimitation as separate species. In order to detect genetic differentiation in Palame, 1049 bp of mitochondria1 DNA (COI gene) were sequenced. The three nominal species of Palame yielded six haplotype groups, with sequence divergences among groups ranging from 8.27 to 17.56%. Species with apparent seasonal changes in host use included multiple distinct haplotype groups that I interpret to represent multiple species-level taxa. Insects considered generalized owing to temporal or geographical changes in host association may, with improved resolution in species limits, prove to be assemblages including relatively specialized cryptic species.

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“…Lecythidaceae show different biological activities on important pests and pathogens, such as antifungal activity (Hussin et al 2009), growth inhibition in human pathogens (Rovira et al 1999) and antifeedant, larvicidal and ovicidal activities against the pest insects H. armigera (Hubner) and Spodoptera litura (Fab.) (Baskar et al 2010, 2014b, Baskar & Ignacimuthu 2013.…”

Section: Introductionmentioning

confidence: 99%

Toxic Effects of Couroupita guianensis Against Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae)

Baskar¹,

Ignacimuthu²,

Jayakumar

2014

Neotrop Entomol

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Laboratory experiments were conducted to find out the efficacy of different crude extracts and fractions of Couroupita guianensis (Lecythidaceae) against Spodoptera litura (Fabricius). Results revealed that hexane, chloroform and ethyl acetate extracts of C. guianensis showed larvicidal and pupicidal activities against S. litura. Maximum larvicidal activity (68.66%) was observed in hexane extract at 5.0% concentration followed by chloroform and ethyl acetate extracts, and least LC50 value of 2.64% was observed in hexane extract. A 100% pupicidal activity was observed in hexane extract. Based on the efficacy of crude extracts, the effective crude extract (hexane extract) was further fractionated and subjected to screening for biological activities against S. litura. Among the eight fractions isolated from the hexane extract, fraction 8 showed maximum antifeedant activity (81. 8%) and larvicidal activity (76.9%) at 1000-ppm concentration; this fraction showed least LC50 value of 375.92 ppm for larvicidal activity. Cent per cent pupicidal activity was recorded. Reduced midgut and hemolymph protein contents were observed at 1000 ppm of fraction 8. Histopathological studies revealed that fraction 8 severely damaged the midgut cells of S. litura. This fraction could be used to develop botanical formulation to control agricultural pests.

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Antimicrobial Activity of Neotropical Wood and Bark Extracts

Cited by 14 publications

References 6 publications

Diversity of decay resistance strategies of durable tropical woods species: Bocoa prouacencsis Aublet, Vouacapoua americana Aublet, Inga alba (Sw.) Wild

Diversity of decay resistance strategies of durable tropical woods species: Bocoa prouacencsis Aublet, Vouacapoua americana Aublet, Inga alba (Sw.) Wild

The impact of redefined species limits in Palame (Coleoptera: Cerambycidae: Lamiinae: Acanthocinini) on assessments of host, seasonal, and stratum specificity

Toxic Effects of Couroupita guianensis Against Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae)

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