Comportamento alimentar de adultos de Diabrotica speciosa na presença de extratos aquosos de Meliaceae

Seffrin, Rita de Cássia Andrade dos Santos; Costa, Ervandil Corrêa; Longhi, Solon Jonas; Lopes, Sidinei José; Santos, Valdecir José dos

doi:10.1590/s0103-84782008000800004

Cited by 5 publications

(4 citation statements)

References 6 publications

(5 reference statements)

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“…It is known that the eating behavior of insects depends on the integration of the central nervous system with the chemoreceptors located on the shanks, the mouth parts and the oral cavity and insecticides found in plants can act upon the chemoreceptors by stimulating deterrent cells or blocking phagostimulating cells to inhibit feeding [26]. The results are similar to those found by Seffrin et al [27] regarding the use of natural products that exert antifeedant activity against D. speciosa on the common bean, although the plants studied are different from those of the present study.…”

Section: Activity Of Essential Oils Against Diabrotica Speciosasupporting

confidence: 85%

Chemical Characterization and Application of the Essential Oils from Chenopodium ambrosioides and Philodendron bipinnatifidum in the Control of Diabrotica speciosa (Coleoptera: Chrysomelidae)

Santiago¹,

Cardoso²,

Figueiredo³

et al. 2014

AJPS

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The compositions of essential oils from Chenopodium ambrosioides L. and Philodendron bipinnatifidum Schott were determined, and their potential effects on the nutrition and mortality of Diabrotica speciosa were studied. The extraction of the oils was performed by hydrodistillation (2 h) using a modified Clevenger apparatus and the oils were subsequently subjected to analysis by gas chromatography/flame ionization detector (CG/FID) and gas chromatography/mass spectrometry (GC-MS). A completely randomized design with five treatments and four replications was adopted. The bean plants were sprayed with solutions of the oils dissolved in aqueous Tween 80 solutions at concentrations of 0 (water + Tween 80), 0.5%, 1.0%, 1.5% and 2.0% and then furnished to the insects with no choice available. Seven days after the application, the percentage of leaves with injury, degree of defoliation, the preference index for consumption and the percent of mortality of insects were evaluated. Neither of the essential oils caused a reduction in foliar injury, but antifeeding activity was observed, causing reduced feeding and increasing the mortality of adult D.

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Section: Activity Of Essential Oils Against Diabrotica Speciosasupporting

confidence: 85%

Chemical Characterization and Application of the Essential Oils from Chenopodium ambrosioides and Philodendron bipinnatifidum in the Control of Diabrotica speciosa (Coleoptera: Chrysomelidae)

Santiago¹,

Cardoso²,

Figueiredo³

et al. 2014

AJPS

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“…elegans is a medicinal plant and its importance was made evident in previous papers such as on phytochemical studies (Garcez et al, 1996), the diversity of endophytic fungi (Rhoden et al, 2012a), the efficiency of endophytic fungi in control of human pathogenic bacteria (Rhoden et al, 2012b), and the production of 3-nitropropionic acid by the endophytic fungi Phomopsis longicolla, isolated from the same species plant (Flores et al, 2013). Another Genetics and Molecular Research 14 (1): 1515-1525(2015 Endophytic bacteria from T. elegans specimen of the same genus (Trichilia) in phytochemical studies showed anti-inflammatory activity (Benencia et al, 2000) and a change in the eating behavior of Diabrotica speciosa (Seffrin et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Phylogenetic analysis of endophytic bacterial isolates from leaves of the medicinal plant Trichilia elegans A. Juss. (Meliaceae)

Rhoden

García

Silva³

et al. 2015

Genet. Mol. Res.

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ABSTRACT. Various organisms such as fungi and bacteria can live inside plants, inhabiting the aerial parts (primarily the leaves) without causing damage. These microorganisms, called endophytes, produce an extensive variety of compounds that can be useful for medical and agronomic purposes. Trichilia elegans A. Juss., belonging to the Meliaceae family, shows wide dispersion in South America, and phytochemical analyses from these plants and endophyte isolates have shown biological activity. Accordingly, the aim of this study was to verify the diversity of bacterial endophytes from T. elegans using partial sequencing of 16S rRNA, followed by phylogenetic analysis. Isolation was performed by cutting the leaves, after disinfection with 5% sodium hypochlorite (NaOCl), in 1-2-mm 2 fragments, which were equally placed on dishes containing TSA and fungicide BENLATE at 75 μg/mL. All dishes were incubated at 28°C in the biochemical oxygen demand system for 5 days and periodically checked. Afterwards, the colonization frequency (%) was determined: (number of fragments colonized by bacteria/total number of fragments) x 100. Three isolations between September 2011 and March 2012 were performed; the growth frequency ranged between 1.6 and 13.6%. Following sequencing of 16S rRNA and phylogenetic analysis, the genera identified were: Staphylococcus, Bacillus, Microbacterium, Pseudomonas, and Pantoea. These results will provide important knowledge on the diversity of endophytic bacteria inhabiting medicinal plants, and a better understanding of the microbiome of T. elegans would reinforce the necessity of endophyte studies with a focus on their future applications in biotechnological areas of agriculture, medicine, and the environment.

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“…Plant extracts with this characteristic guide the insect away from the plant even if it performs the test bite on the plant when detecting antixenotic allomones through its sensory system, paralyzing feeding and reducing the damage caused to the leaf (Vendramim and Castiglioni, 2000;Seffrin et al, 2008).…”

Section: Discussionmentioning

confidence: 99%

Bioactivity of aqueous extract of Jacaranda spp. (Bignoniaceae) on Plutella xylostella L. 1758 (Lepidoptera: Plutellidae)

et al. 2022

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The high consumption rate of vegetables stimulates the cultivation and increases the demand regarding the adequacy of the production processes. The attack of the pest Plutella xylostella causes high losses by reducing product quality, typifying a phytosanitary problem. This study aimed to verify the bioactivity of aqueous extracts of leaves of Jacaranda decurrens and Jacaranda mimosifolia at concentrations of 5, 10, and 15% on the insect. The choice test was carried out at the laboratory to determine the food effect of plant extracts and evaluate changes in the life cycle of insects exposed to active compounds through the analysis of biological parameters. Plant extracts of J. decurrens and J. mimosifolia presented with phagodeterrent classification in the choice experiments. The three J. decurrens extract concentrations promoted a prolongation of larval and pupal duration, while the duration of individuals treated with J. mimosifolia at 10% was significantly reduced. Occurred reduction in larval survival of individuals treated with aqueous extracts of J. decurrens and J. mimosifolia. Eggs from treatments with aqueous extract of J. decurrens and J. mimosifolia had reduced survival. Pupal survival of individuals treated with extract at 15% showed a significant reduction compared to the treatments at 5% and 10%. Pupae from the treatment with aqueous extract of Jacaranda mimosifolia showed a reduction in biomass in the treatment at 15% differing from the control e 5%. Thus, the aqueous extracts of the species J. decurrens and J. mimosifolia show insecticidal potential in the tests performed on P. xylostella.

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Comportamento alimentar de adultos de Diabrotica speciosa na presença de extratos aquosos de Meliaceae

Cited by 5 publications

References 6 publications

Chemical Characterization and Application of the Essential Oils from Chenopodium ambrosioides and Philodendron bipinnatifidum in the Control of Diabrotica speciosa (Coleoptera: Chrysomelidae)

Chemical Characterization and Application of the Essential Oils from Chenopodium ambrosioides and Philodendron bipinnatifidum in the Control of Diabrotica speciosa (Coleoptera: Chrysomelidae)

Phylogenetic analysis of endophytic bacterial isolates from leaves of the medicinal plant Trichilia elegans A. Juss. (Meliaceae)

Bioactivity of aqueous extract of Jacaranda spp. (Bignoniaceae) on Plutella xylostella L. 1758 (Lepidoptera: Plutellidae)

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