Leucoagaricus gongylophorus provides protection for Atta sexdens against plant extracts
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Ciência Florestal (Online) |
Texto Completo: | https://periodicos.ufsm.br/cienciaflorestal/article/view/42797 |
Resumo: | Plant extracts have been considered for the control the leaf-cutting ants. The objectives of this study were to evaluate the survival leaf-cutting worker ants after topical application of Ageratum conyzoides (mentrasto) and Manihot esculenta (cassava) extracts; and to evaluate the effect of Manihot esculenta hexane extract via ingestion on the survival of the workers of Atta sexdens Forel 1908 isolated or not from their colonies, in order to verify whether the symbiotic fungus Leucoagaricus gongylophorus confers protection to the workers against the extract. First, ten medium workers were removed from their colonies and received the application of 1 μL of extract on the pronotum. The cassava extract (125 µg.mL-1) was diluted in a solution of honey with water for the ingestion bioassay. Five repetitions (ten ants inside a transparent plastic container) were performed in each of the four colonies used in the experiment. The numbers of dead ants were recorded daily until the control also died. The solution of the hexane Manihot esculenta extract gave a significant result at the concentration of 100 µg.mL-1, with 100% of mortatily after 4 days. The ants maintained with the symbiont fungus that ingested the cassava hexanic extract showed a lower mortality rate (40% at the end of 25 days) than the workers who were kept isolated (90%). The symbiosis between the ants and the fungus means more than a food source for leaf-cutting ants because it reduces the toxic effect on the ants when the ants remain in contact with the fungus and is offered an unsafe vegetable. |
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Leucoagaricus gongylophorus provides protection for Atta sexdens against plant extractsLeucoagaricus gongylophorus confere proteção para Atta sexdens contra extratos vegetaisLeaf-cutting antsAgeratum conyzoidesManihot esculentaFormigas-cortadeirasAgeratum conyzoidesManihot esculentaPlant extracts have been considered for the control the leaf-cutting ants. The objectives of this study were to evaluate the survival leaf-cutting worker ants after topical application of Ageratum conyzoides (mentrasto) and Manihot esculenta (cassava) extracts; and to evaluate the effect of Manihot esculenta hexane extract via ingestion on the survival of the workers of Atta sexdens Forel 1908 isolated or not from their colonies, in order to verify whether the symbiotic fungus Leucoagaricus gongylophorus confers protection to the workers against the extract. First, ten medium workers were removed from their colonies and received the application of 1 μL of extract on the pronotum. The cassava extract (125 µg.mL-1) was diluted in a solution of honey with water for the ingestion bioassay. Five repetitions (ten ants inside a transparent plastic container) were performed in each of the four colonies used in the experiment. The numbers of dead ants were recorded daily until the control also died. The solution of the hexane Manihot esculenta extract gave a significant result at the concentration of 100 µg.mL-1, with 100% of mortatily after 4 days. The ants maintained with the symbiont fungus that ingested the cassava hexanic extract showed a lower mortality rate (40% at the end of 25 days) than the workers who were kept isolated (90%). The symbiosis between the ants and the fungus means more than a food source for leaf-cutting ants because it reduces the toxic effect on the ants when the ants remain in contact with the fungus and is offered an unsafe vegetable.Extratos vegetais foram utilizados para o controle das formigas cortadeiras. Os objetivos deste estudo foram avaliar a sobrevivência de operárias de formigas cortadeiras após aplicação tópica de extratos de Ageratum conyzoides (mentrasto) e Manihot esculenta (mandioca); e avaliar o efeito por ingestão do extrato de Manihot esculenta extraído com hexano na sobrevivência de operárias de Atta sexdens Forel 1908 isoladas ou não de suas colônias, a fim de verificar se o fungo simbiótico Leucoagaricus gongylophorus confere proteção às operárias contra o extrato. Primeiro, dez operárias médias foram removidas de suas colônias e receberam a aplicação de 1 μL de extrato no pronoto. O extrato de mandioca (125 µg.mL-1) foi diluído em uma solução de mel com água para o bioensaio de ingestão. Foram realizadas cinco repetições (dez formigas dentro de um recipiente de plástico transparente) em cada uma das quatro colônias utilizadas no experimento. O número de formigas mortas foi registrado diariamente até que o tratamento controle também morresse. A solução do extrato Manihot esculenta com hexano apresentou resultado significativo na concentração de 100 µg.mL-1, com 100% de mortalidade após 4 dias. Formigas mantidas com o fungo simbionte que ingeriu o extrato hexânico da mandioca apresentaram menor mortalidade (40% ao final de 25 dias) do que as operárias mantidas isoladas (90%). A simbiose entre as formigas e o fungo significa mais do que uma fonte de alimento para as formigas-cortadeiras, devido ao fato de reduzir o efeito tóxico de extratos vegetais nas formigas quando elas permanencem em contato constante com o mesmo.Universidade Federal de Santa Maria2022-12-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontextoinfo:eu-repo/semantics/otherapplication/pdftext/xmlhttps://periodicos.ufsm.br/cienciaflorestal/article/view/4279710.5902/1980509842797Ciência Florestal; Vol. 32 No. 1 (2022); 86-101Ciência Florestal; v. 32 n. 1 (2022); 86-1011980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMenghttps://periodicos.ufsm.br/cienciaflorestal/article/view/42797/47515https://periodicos.ufsm.br/cienciaflorestal/article/view/42797/50566Copyright (c) 2022 Ciência Florestalhttps://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessMotta, Amanda Cristiane QueirozAvelino, Deise SantosMarinho, Cidália Gabriela SantosFadini, Marcos Antônio MatielloMelo, Júlio Onésio Ferreira2023-03-10T15:49:09Zoai:ojs.pkp.sfu.ca:article/42797Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2023-03-10T15:49:09Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
Leucoagaricus gongylophorus provides protection for Atta sexdens against plant extracts Leucoagaricus gongylophorus confere proteção para Atta sexdens contra extratos vegetais |
title |
Leucoagaricus gongylophorus provides protection for Atta sexdens against plant extracts |
spellingShingle |
Leucoagaricus gongylophorus provides protection for Atta sexdens against plant extracts Motta, Amanda Cristiane Queiroz Leaf-cutting ants Ageratum conyzoides Manihot esculenta Formigas-cortadeiras Ageratum conyzoides Manihot esculenta |
title_short |
Leucoagaricus gongylophorus provides protection for Atta sexdens against plant extracts |
title_full |
Leucoagaricus gongylophorus provides protection for Atta sexdens against plant extracts |
title_fullStr |
Leucoagaricus gongylophorus provides protection for Atta sexdens against plant extracts |
title_full_unstemmed |
Leucoagaricus gongylophorus provides protection for Atta sexdens against plant extracts |
title_sort |
Leucoagaricus gongylophorus provides protection for Atta sexdens against plant extracts |
author |
Motta, Amanda Cristiane Queiroz |
author_facet |
Motta, Amanda Cristiane Queiroz Avelino, Deise Santos Marinho, Cidália Gabriela Santos Fadini, Marcos Antônio Matiello Melo, Júlio Onésio Ferreira |
author_role |
author |
author2 |
Avelino, Deise Santos Marinho, Cidália Gabriela Santos Fadini, Marcos Antônio Matiello Melo, Júlio Onésio Ferreira |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Motta, Amanda Cristiane Queiroz Avelino, Deise Santos Marinho, Cidália Gabriela Santos Fadini, Marcos Antônio Matiello Melo, Júlio Onésio Ferreira |
dc.subject.por.fl_str_mv |
Leaf-cutting ants Ageratum conyzoides Manihot esculenta Formigas-cortadeiras Ageratum conyzoides Manihot esculenta |
topic |
Leaf-cutting ants Ageratum conyzoides Manihot esculenta Formigas-cortadeiras Ageratum conyzoides Manihot esculenta |
description |
Plant extracts have been considered for the control the leaf-cutting ants. The objectives of this study were to evaluate the survival leaf-cutting worker ants after topical application of Ageratum conyzoides (mentrasto) and Manihot esculenta (cassava) extracts; and to evaluate the effect of Manihot esculenta hexane extract via ingestion on the survival of the workers of Atta sexdens Forel 1908 isolated or not from their colonies, in order to verify whether the symbiotic fungus Leucoagaricus gongylophorus confers protection to the workers against the extract. First, ten medium workers were removed from their colonies and received the application of 1 μL of extract on the pronotum. The cassava extract (125 µg.mL-1) was diluted in a solution of honey with water for the ingestion bioassay. Five repetitions (ten ants inside a transparent plastic container) were performed in each of the four colonies used in the experiment. The numbers of dead ants were recorded daily until the control also died. The solution of the hexane Manihot esculenta extract gave a significant result at the concentration of 100 µg.mL-1, with 100% of mortatily after 4 days. The ants maintained with the symbiont fungus that ingested the cassava hexanic extract showed a lower mortality rate (40% at the end of 25 days) than the workers who were kept isolated (90%). The symbiosis between the ants and the fungus means more than a food source for leaf-cutting ants because it reduces the toxic effect on the ants when the ants remain in contact with the fungus and is offered an unsafe vegetable. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-12-02 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion texto info:eu-repo/semantics/other |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufsm.br/cienciaflorestal/article/view/42797 10.5902/1980509842797 |
url |
https://periodicos.ufsm.br/cienciaflorestal/article/view/42797 |
identifier_str_mv |
10.5902/1980509842797 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufsm.br/cienciaflorestal/article/view/42797/47515 https://periodicos.ufsm.br/cienciaflorestal/article/view/42797/50566 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2022 Ciência Florestal https://creativecommons.org/licenses/by-nc/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2022 Ciência Florestal https://creativecommons.org/licenses/by-nc/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf text/xml |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Florestal; Vol. 32 No. 1 (2022); 86-101 Ciência Florestal; v. 32 n. 1 (2022); 86-101 1980-5098 0103-9954 reponame:Ciência Florestal (Online) instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Ciência Florestal (Online) |
collection |
Ciência Florestal (Online) |
repository.name.fl_str_mv |
Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br |
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1799944135297204224 |