Dual insecticidal effects of Adenanthera Pavonina kunitz-type inhibitor on Plodia Interpunctella is mediated by digestive enzymes inhibition and chitin-binding properties

The Indianmeal moth, Plodia interpunctella, is one of the most damaging pests of stored products. We investigated the insecticidal properties of ApKTI, a Kunitz trypsin inhibitor from Adenanthera pavonina seeds, against P. interpunctella larvae through bioassays with artificial diet. ApKTI-fed larva...

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Principais autores: Oliveira, Caio Fernando Ramalho de, Flores, Taylla Michelle de Oliveira, Cardoso, Marlon Henrique, Oshiro, Karen Garcia Nogueira, Russi, Raphael, França, Anderson Felipe Jácome de, Santos, Elizeu Antunes dos, Franco, Octávio Luiz, Oliveira, Adeliana Silva de, Migliolo, Ludovico
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Idioma:English
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spelling ri-123456789-313212021-01-31T08:19:58Z Dual insecticidal effects of Adenanthera Pavonina kunitz-type inhibitor on Plodia Interpunctella is mediated by digestive enzymes inhibition and chitin-binding properties Oliveira, Caio Fernando Ramalho de Flores, Taylla Michelle de Oliveira Cardoso, Marlon Henrique Oshiro, Karen Garcia Nogueira Russi, Raphael França, Anderson Felipe Jácome de Santos, Elizeu Antunes dos Franco, Octávio Luiz Oliveira, Adeliana Silva de Migliolo, Ludovico Non-competitive inhibitor Trypsin inhibitor Peritrophic membrane The Indianmeal moth, Plodia interpunctella, is one of the most damaging pests of stored products. We investigated the insecticidal properties of ApKTI, a Kunitz trypsin inhibitor from Adenanthera pavonina seeds, against P. interpunctella larvae through bioassays with artificial diet. ApKTI-fed larvae showed reduction of up to 88% on larval weight and 75% in survival. Trypsin enzymes extracted from P. interpunctella larvae were inhibited by ApKTI, which also demonstrated capacity to bind to chitin. Kinetic studies revealed a non-competitive inhibition mechanism of ApKTI for trypsin, which were further corroborated by molecular docking studies. Furthermore, we have demonstrated that ApKTI exhibits a hydrophobic pocket near the reactive site loop probably involved in chitin interactions. Taken together, these data suggested that the insecticidal activity of ApKTI for P. interpunctella larvae involves a dual and promiscuous mechanisms biding to two completely different targets. Both processes might impair the P. interpunctella larval digestive process, leading to larvae death before reaching the pupal stage. Further studies are encouraged using ApKTI as a biotechnological tool to control insect pests in field conditions 2021-01-29T12:37:28Z 2021-01-29T12:37:28Z 2019-11-28 article OLIVEIRA, Caio Fernando Ramalho de; FLORES, Taylla Michelle de Oliveira; CARDOSO, Marlon Henrique; OSHIRO, Karen Garcia Nogueira; RUSSI, Raphael; FRANÇA, Anderson Felipe Jácome de; SANTOS, Elizeu Antunes dos; FRANCO, Octávio Luiz; OLIVEIRA, Adeliana Silva de; MIGLIOLO, Ludovico. Dual insecticidal efects of Adenanthera pavonina kunitz-type inhibitor on Plodia interpunctella is mediated by digestive enzymes inhibition and chitin-binding properties. Molecules, [s. l.], v. 24, n. 23, p. 4344-4360, 28 nov. 2019. Disponível em: https://www.mdpi.com/1420-3049/24/23/4344/htm. Acesso em: 26 jan. 2020. http://dx.doi.org/10.3390/molecules24234344 1420-3049 https://repositorio.ufrn.br/handle/123456789/31321 10.3390/molecules24234344 en Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ application/pdf MDPI
institution Repositório Institucional
collection RI - UFRN
language English
topic Non-competitive inhibitor
Trypsin inhibitor
Peritrophic membrane
spellingShingle Non-competitive inhibitor
Trypsin inhibitor
Peritrophic membrane
Oliveira, Caio Fernando Ramalho de
Flores, Taylla Michelle de Oliveira
Cardoso, Marlon Henrique
Oshiro, Karen Garcia Nogueira
Russi, Raphael
França, Anderson Felipe Jácome de
Santos, Elizeu Antunes dos
Franco, Octávio Luiz
Oliveira, Adeliana Silva de
Migliolo, Ludovico
Dual insecticidal effects of Adenanthera Pavonina kunitz-type inhibitor on Plodia Interpunctella is mediated by digestive enzymes inhibition and chitin-binding properties
description The Indianmeal moth, Plodia interpunctella, is one of the most damaging pests of stored products. We investigated the insecticidal properties of ApKTI, a Kunitz trypsin inhibitor from Adenanthera pavonina seeds, against P. interpunctella larvae through bioassays with artificial diet. ApKTI-fed larvae showed reduction of up to 88% on larval weight and 75% in survival. Trypsin enzymes extracted from P. interpunctella larvae were inhibited by ApKTI, which also demonstrated capacity to bind to chitin. Kinetic studies revealed a non-competitive inhibition mechanism of ApKTI for trypsin, which were further corroborated by molecular docking studies. Furthermore, we have demonstrated that ApKTI exhibits a hydrophobic pocket near the reactive site loop probably involved in chitin interactions. Taken together, these data suggested that the insecticidal activity of ApKTI for P. interpunctella larvae involves a dual and promiscuous mechanisms biding to two completely different targets. Both processes might impair the P. interpunctella larval digestive process, leading to larvae death before reaching the pupal stage. Further studies are encouraged using ApKTI as a biotechnological tool to control insect pests in field conditions
format article
author Oliveira, Caio Fernando Ramalho de
Flores, Taylla Michelle de Oliveira
Cardoso, Marlon Henrique
Oshiro, Karen Garcia Nogueira
Russi, Raphael
França, Anderson Felipe Jácome de
Santos, Elizeu Antunes dos
Franco, Octávio Luiz
Oliveira, Adeliana Silva de
Migliolo, Ludovico
author_facet Oliveira, Caio Fernando Ramalho de
Flores, Taylla Michelle de Oliveira
Cardoso, Marlon Henrique
Oshiro, Karen Garcia Nogueira
Russi, Raphael
França, Anderson Felipe Jácome de
Santos, Elizeu Antunes dos
Franco, Octávio Luiz
Oliveira, Adeliana Silva de
Migliolo, Ludovico
author_sort Oliveira, Caio Fernando Ramalho de
title Dual insecticidal effects of Adenanthera Pavonina kunitz-type inhibitor on Plodia Interpunctella is mediated by digestive enzymes inhibition and chitin-binding properties
title_short Dual insecticidal effects of Adenanthera Pavonina kunitz-type inhibitor on Plodia Interpunctella is mediated by digestive enzymes inhibition and chitin-binding properties
title_full Dual insecticidal effects of Adenanthera Pavonina kunitz-type inhibitor on Plodia Interpunctella is mediated by digestive enzymes inhibition and chitin-binding properties
title_fullStr Dual insecticidal effects of Adenanthera Pavonina kunitz-type inhibitor on Plodia Interpunctella is mediated by digestive enzymes inhibition and chitin-binding properties
title_full_unstemmed Dual insecticidal effects of Adenanthera Pavonina kunitz-type inhibitor on Plodia Interpunctella is mediated by digestive enzymes inhibition and chitin-binding properties
title_sort dual insecticidal effects of adenanthera pavonina kunitz-type inhibitor on plodia interpunctella is mediated by digestive enzymes inhibition and chitin-binding properties
publisher MDPI
publishDate 2021
url https://repositorio.ufrn.br/handle/123456789/31321
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