Resistance of maize cultivars to Sitophilus zeamais (Coleoptera: Curculionidae)
ABSTRACT: Five Zea mays cultivars (BRS Caatingueiro, BRS Gorutuba, BRS Sertanejo, BRS Asa Branca and BR 106) were evaluated considering their effect on the nutrition of the maize weevil Sitophilus zeamais, by analysis of total protein in adult fed with these cultivars and for the presence of lectins and trypsin inhibitors in grains. In addition, free-choice and no-choice assays were performed to investigate the resistance of grains of the Z. mays cultivars to an attack by S. zeamais. The BR 106 cultivar showed the lowest susceptibility index, followed by BRS Caatingueiro, BRS Asa Branca, BRS Sertanejo and BRS Gorutuba. The number of emerged adults in the Z. mays cultivars ranged from 213.17 to 74.0, and the lowest number of insects was recorded for the BR 106 cultivar. The insects were able to feed on grains of all cultivars, but the BR 106 cultivar showed the least reduction in dried biomass. Lectins were detected in extracts from BR 106, BRS Asa Branca, BRS Sertanejo and BRS Gorutuba, and the highest activity was shown by BR 106. The lowest protein assimilation was detected in the insects from treatments with BRS Asa Branca. The extracts from all cultivars were able to inhibit the activity of bovine trypsin, but this effect was not related to the resistance degree of Z. mays cultivars. The results suggest the resistance of BR 160 to the attack of S. zeamais, as well as indicating that the presence of lectin in the grains is the cause of this resistance.
Main Authors: | , , , , , , |
---|---|
Format: | Digital revista |
Language: | English |
Published: |
Instituto Biológico
2018
|
Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1808-16572018000100239 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
oai:scielo:S1808-16572018000100239 |
---|---|
record_format |
ojs |
spelling |
oai:scielo:S1808-165720180001002392018-11-12Resistance of maize cultivars to Sitophilus zeamais (Coleoptera: Curculionidae)Frazão,Carlos Aydano VirgínioSilva,Paulo Roberto RamalhoAlmeida,Welton Aaron dePontual,Emmanuel VianaCruz,Glaucilane dos SantosNapoleão,Thiago HenriqueFrança,Solange Maria de plant resistance stored maize lectins trypsin inhibitors maize weevil ABSTRACT: Five Zea mays cultivars (BRS Caatingueiro, BRS Gorutuba, BRS Sertanejo, BRS Asa Branca and BR 106) were evaluated considering their effect on the nutrition of the maize weevil Sitophilus zeamais, by analysis of total protein in adult fed with these cultivars and for the presence of lectins and trypsin inhibitors in grains. In addition, free-choice and no-choice assays were performed to investigate the resistance of grains of the Z. mays cultivars to an attack by S. zeamais. The BR 106 cultivar showed the lowest susceptibility index, followed by BRS Caatingueiro, BRS Asa Branca, BRS Sertanejo and BRS Gorutuba. The number of emerged adults in the Z. mays cultivars ranged from 213.17 to 74.0, and the lowest number of insects was recorded for the BR 106 cultivar. The insects were able to feed on grains of all cultivars, but the BR 106 cultivar showed the least reduction in dried biomass. Lectins were detected in extracts from BR 106, BRS Asa Branca, BRS Sertanejo and BRS Gorutuba, and the highest activity was shown by BR 106. The lowest protein assimilation was detected in the insects from treatments with BRS Asa Branca. The extracts from all cultivars were able to inhibit the activity of bovine trypsin, but this effect was not related to the resistance degree of Z. mays cultivars. The results suggest the resistance of BR 160 to the attack of S. zeamais, as well as indicating that the presence of lectin in the grains is the cause of this resistance.info:eu-repo/semantics/openAccessInstituto BiológicoArquivos do Instituto Biológico v.85 20182018-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1808-16572018000100239en10.1590/1808-1657000552017 |
institution |
SCIELO |
collection |
OJS |
country |
Brasil |
countrycode |
BR |
component |
Revista |
access |
En linea |
databasecode |
rev-scielo-br |
tag |
revista |
region |
America del Sur |
libraryname |
SciELO |
language |
English |
format |
Digital |
author |
Frazão,Carlos Aydano Virgínio Silva,Paulo Roberto Ramalho Almeida,Welton Aaron de Pontual,Emmanuel Viana Cruz,Glaucilane dos Santos Napoleão,Thiago Henrique França,Solange Maria de |
spellingShingle |
Frazão,Carlos Aydano Virgínio Silva,Paulo Roberto Ramalho Almeida,Welton Aaron de Pontual,Emmanuel Viana Cruz,Glaucilane dos Santos Napoleão,Thiago Henrique França,Solange Maria de Resistance of maize cultivars to Sitophilus zeamais (Coleoptera: Curculionidae) |
author_facet |
Frazão,Carlos Aydano Virgínio Silva,Paulo Roberto Ramalho Almeida,Welton Aaron de Pontual,Emmanuel Viana Cruz,Glaucilane dos Santos Napoleão,Thiago Henrique França,Solange Maria de |
author_sort |
Frazão,Carlos Aydano Virgínio |
title |
Resistance of maize cultivars to Sitophilus zeamais (Coleoptera: Curculionidae) |
title_short |
Resistance of maize cultivars to Sitophilus zeamais (Coleoptera: Curculionidae) |
title_full |
Resistance of maize cultivars to Sitophilus zeamais (Coleoptera: Curculionidae) |
title_fullStr |
Resistance of maize cultivars to Sitophilus zeamais (Coleoptera: Curculionidae) |
title_full_unstemmed |
Resistance of maize cultivars to Sitophilus zeamais (Coleoptera: Curculionidae) |
title_sort |
resistance of maize cultivars to sitophilus zeamais (coleoptera: curculionidae) |
description |
ABSTRACT: Five Zea mays cultivars (BRS Caatingueiro, BRS Gorutuba, BRS Sertanejo, BRS Asa Branca and BR 106) were evaluated considering their effect on the nutrition of the maize weevil Sitophilus zeamais, by analysis of total protein in adult fed with these cultivars and for the presence of lectins and trypsin inhibitors in grains. In addition, free-choice and no-choice assays were performed to investigate the resistance of grains of the Z. mays cultivars to an attack by S. zeamais. The BR 106 cultivar showed the lowest susceptibility index, followed by BRS Caatingueiro, BRS Asa Branca, BRS Sertanejo and BRS Gorutuba. The number of emerged adults in the Z. mays cultivars ranged from 213.17 to 74.0, and the lowest number of insects was recorded for the BR 106 cultivar. The insects were able to feed on grains of all cultivars, but the BR 106 cultivar showed the least reduction in dried biomass. Lectins were detected in extracts from BR 106, BRS Asa Branca, BRS Sertanejo and BRS Gorutuba, and the highest activity was shown by BR 106. The lowest protein assimilation was detected in the insects from treatments with BRS Asa Branca. The extracts from all cultivars were able to inhibit the activity of bovine trypsin, but this effect was not related to the resistance degree of Z. mays cultivars. The results suggest the resistance of BR 160 to the attack of S. zeamais, as well as indicating that the presence of lectin in the grains is the cause of this resistance. |
publisher |
Instituto Biológico |
publishDate |
2018 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1808-16572018000100239 |
work_keys_str_mv |
AT frazaocarlosaydanovirginio resistanceofmaizecultivarstositophiluszeamaiscoleopteracurculionidae AT silvapaulorobertoramalho resistanceofmaizecultivarstositophiluszeamaiscoleopteracurculionidae AT almeidaweltonaaronde resistanceofmaizecultivarstositophiluszeamaiscoleopteracurculionidae AT pontualemmanuelviana resistanceofmaizecultivarstositophiluszeamaiscoleopteracurculionidae AT cruzglaucilanedossantos resistanceofmaizecultivarstositophiluszeamaiscoleopteracurculionidae AT napoleaothiagohenrique resistanceofmaizecultivarstositophiluszeamaiscoleopteracurculionidae AT francasolangemariade resistanceofmaizecultivarstositophiluszeamaiscoleopteracurculionidae |
_version_ |
1756432882740494336 |