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Registro Completo |
Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
Data corrente: |
22/12/2022 |
Data da última atualização: |
26/12/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
ALMEIDA, A. S. de; COELHO, C. R.; SA, M. S. de; BENTO, E. de S.; WISNIEWSKI JUNIOR, A.; TEODORO, A. V.; XAVIER, H. S.; SENA FILHO, J. G. de. |
Afiliação: |
ANDERSON SOARES DE ALMEIDA; CAROLINE RABELO COELHO; MIRELE SANTANA DE SA; EDSON DE SOUZA BENTO; ALBERTO WISNIEWSKI JUNIOR; ADENIR VIEIRA TEODORO, CPATC; HAROUDO SATIRO XAVIER; JOSE GUEDES DE SENA FILHO, CPATC. |
Título: |
Biomonitoring the Vitex gardneriana Shauer (Lamiaceae) toxic effects to shed light on bioactive compounds against a major coconut pest mite. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
American Journal of Plant Sciences, v. 12, p. 1601-1612, 2021. |
ISSN: |
Online: 2158-2750; Print: 2158-2742 |
Idioma: |
Português |
Conteúdo: |
The coconut mite, Aceria guerreronis Keifer (Acari: Eriophyidae), is a major pest of coconut plantations (Cocos nucifera L.) worldwide. Here, we conducted a bioguided phytochemical approach using toxicity and repellency bioassays of nonpolar extract and its fractions of Vitex gardneriana Schauer (Lamiaceae) leaves to this pest. Nonpolar crude extract was fractionated by column chromatography using solvents with increased polarity and binary mixtures, resulting in five semipurified groups. The biomonitoring bioassay provided active fractions and led to the isolation and characterization of the bioactive compound squalene, a biosynthetic precursor of 20-hydroxyecdysone, which plays an important role in plant defense against arthropods. The LC50 of the crude extract of V. gardneriana for A. guerreronis was estimated to be 0.185 mg·mL-1 and LC80 = 4.123 mg·mL-1. Also, the extract was highly repellent to this pest for up to 24 h. The fractions of V. gardneriana, and also squalene, caused mortality to A. guerreronis. The potential of V. gardneriana fractions/squalene as biopesticides for controlling A. guerreronis in coconut plantations is discussed herein. |
Palavras-Chave: |
Biopesticida; Toxidade. |
Thesagro: |
Ácaro; Coco; Controle Biológico; Praga de Planta. |
Thesaurus Nal: |
Aceria; Coconuts; Mite control; Mites. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1150263/1/Biomonitoring-the-Vitex-gardeneriana-shauer....pdf
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Marc: |
LEADER 02168naa a2200337 a 4500 001 2150263 005 2022-12-26 008 2022 bl uuuu u00u1 u #d 022 $aOnline: 2158-2750; Print: 2158-2742 100 1 $aALMEIDA, A. S. de 245 $aBiomonitoring the Vitex gardneriana Shauer (Lamiaceae) toxic effects to shed light on bioactive compounds against a major coconut pest mite.$h[electronic resource] 260 $c2022 520 $aThe coconut mite, Aceria guerreronis Keifer (Acari: Eriophyidae), is a major pest of coconut plantations (Cocos nucifera L.) worldwide. Here, we conducted a bioguided phytochemical approach using toxicity and repellency bioassays of nonpolar extract and its fractions of Vitex gardneriana Schauer (Lamiaceae) leaves to this pest. Nonpolar crude extract was fractionated by column chromatography using solvents with increased polarity and binary mixtures, resulting in five semipurified groups. The biomonitoring bioassay provided active fractions and led to the isolation and characterization of the bioactive compound squalene, a biosynthetic precursor of 20-hydroxyecdysone, which plays an important role in plant defense against arthropods. The LC50 of the crude extract of V. gardneriana for A. guerreronis was estimated to be 0.185 mg·mL-1 and LC80 = 4.123 mg·mL-1. Also, the extract was highly repellent to this pest for up to 24 h. The fractions of V. gardneriana, and also squalene, caused mortality to A. guerreronis. The potential of V. gardneriana fractions/squalene as biopesticides for controlling A. guerreronis in coconut plantations is discussed herein. 650 $aAceria 650 $aCoconuts 650 $aMite control 650 $aMites 650 $aÁcaro 650 $aCoco 650 $aControle Biológico 650 $aPraga de Planta 653 $aBiopesticida 653 $aToxidade 700 1 $aCOELHO, C. R. 700 1 $aSA, M. S. de 700 1 $aBENTO, E. de S. 700 1 $aWISNIEWSKI JUNIOR, A. 700 1 $aTEODORO, A. V. 700 1 $aXAVIER, H. S. 700 1 $aSENA FILHO, J. G. de 773 $tAmerican Journal of Plant Sciences$gv. 12, p. 1601-1612, 2021.
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Embrapa Tabuleiros Costeiros (CPATC) |
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1. | | ALMEIDA, A. S. de; COELHO, C. R.; SA, M. S. de; BENTO, E. de S.; WISNIEWSKI JUNIOR, A.; TEODORO, A. V.; XAVIER, H. S.; SENA FILHO, J. G. de. Biomonitoring the Vitex gardneriana Shauer (Lamiaceae) toxic effects to shed light on bioactive compounds against a major coconut pest mite. American Journal of Plant Sciences, v. 12, p. 1601-1612, 2021.Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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