Chemical ecology of Eragrostis plana helps understanding of the species' invasiveness in an agroecosystem community

Detalhes bibliográficos
Autor(a) principal: Bittencourt, Henrique von Hertwig
Data de Publicação: 2018
Outros Autores: Trezzi, Michelangelo Muzell, Teixeira, Sirlei Dias, Bonome, Lisandro da Silva, Vargas, Aline Garcias de [UNESP], Souza Filho, Antonio da Silva, Oldoni, Tatiane Cadorin
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1071/CP18339
http://hdl.handle.net/11449/184066
Resumo: South African lovegrass (Eragrostis plana Nees) is an aggressive and difficult-to-control species in grazing areas of the south of South America, whose invasion capacity is increased by its phytotoxic capability. The objectives of this work were to identify and quantify chemicals produced by the plant shoots, to evaluate the inhibitory capability of plant extracts on development of lucerne (Medicago sativa L.) and wheat (Triticum aestivum L.), and to determine the spatial distribution of phenolics in rhizosphere soil in an infested field. Extracts were obtained by exhaustive extraction of dry shoot biomass, using solvents in increasing order of polarity. Soil samples contained in the rhizosphere were collected from an infested field. Bioassays for determination of phytotoxicity of extracts on lucerne and wheat seedlings were conducted in a completely randomised design with four replicates. The extracts showed suppressive, stimulating or neutral effects on the development of the radicle, shoots, and total lucerne and wheat seedlings, with greater phytotoxicity, generally, of ethyl acetate and methyl alcohol extracts. In the shoot extracts, nine phenolic compounds were identified and quantified: caffeic acid, coumaric acid, ferulic acid, gallic acid, vanillic acid, catechin, epicatechin, resveratrol, rutin. Of these, four were identified in the soil: catechin, epicatechin, coumaric acid, ferulic acid. Catechin, epicatechin and ferulic acid showed similar distribution patterns in the soil profile, with higher concentrations detected on the surface and on the side opposite the plant crown, which indicates release by the decomposition of tissues deposited on the soil surface. Coumaric acid showed higher concentrations on the surface and in the deeper layer of the soil next to the plant, indicating release both from decomposition of the shoots and from the root system. Future work may explore the phytotoxicity of the analytes identified, either isolated or in admixture, using dose curves and an inhibitory response to target plant species.
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spelling Chemical ecology of Eragrostis plana helps understanding of the species' invasiveness in an agroecosystem communityalfalfaalien floraexotic dominanceforage weedrangeland invasionSouth African lovegrass (Eragrostis plana Nees) is an aggressive and difficult-to-control species in grazing areas of the south of South America, whose invasion capacity is increased by its phytotoxic capability. The objectives of this work were to identify and quantify chemicals produced by the plant shoots, to evaluate the inhibitory capability of plant extracts on development of lucerne (Medicago sativa L.) and wheat (Triticum aestivum L.), and to determine the spatial distribution of phenolics in rhizosphere soil in an infested field. Extracts were obtained by exhaustive extraction of dry shoot biomass, using solvents in increasing order of polarity. Soil samples contained in the rhizosphere were collected from an infested field. Bioassays for determination of phytotoxicity of extracts on lucerne and wheat seedlings were conducted in a completely randomised design with four replicates. The extracts showed suppressive, stimulating or neutral effects on the development of the radicle, shoots, and total lucerne and wheat seedlings, with greater phytotoxicity, generally, of ethyl acetate and methyl alcohol extracts. In the shoot extracts, nine phenolic compounds were identified and quantified: caffeic acid, coumaric acid, ferulic acid, gallic acid, vanillic acid, catechin, epicatechin, resveratrol, rutin. Of these, four were identified in the soil: catechin, epicatechin, coumaric acid, ferulic acid. Catechin, epicatechin and ferulic acid showed similar distribution patterns in the soil profile, with higher concentrations detected on the surface and on the side opposite the plant crown, which indicates release by the decomposition of tissues deposited on the soil surface. Coumaric acid showed higher concentrations on the surface and in the deeper layer of the soil next to the plant, indicating release both from decomposition of the shoots and from the root system. Future work may explore the phytotoxicity of the analytes identified, either isolated or in admixture, using dose curves and an inhibitory response to target plant species.Brazilian National Council for Scientific and Technological DevelopmentBrazilian Coordination for the Improvement of Higher Education PersonnelFederal University of Fronteira SulFederal Technological University of ParanaFed Univ Fronteira Sul, Dept Agron, BR-85301970 Laranjeiras Do Sul, PR, BrazilTechnol Fed Univ Parana, Dept Agron, BR-85503390 Pato Branco, PR, BrazilTechnol Fed Univ Parana, Dept Chem, BR-85503390 Pato Branco, PR, BrazilSao Paulo State Univ, Dept Chem, BR-14800900 Araraquara, SP, BrazilEastern Amazon Brazilian Agr Res Corp Embrapa, BR-66095903 Belem, Para, BrazilSao Paulo State Univ, Dept Chem, BR-14800900 Araraquara, SP, BrazilCsiro PublishingFed Univ Fronteira SulTechnol Fed Univ ParanaUniversidade Estadual Paulista (Unesp)Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Bittencourt, Henrique von HertwigTrezzi, Michelangelo MuzellTeixeira, Sirlei DiasBonome, Lisandro da SilvaVargas, Aline Garcias de [UNESP]Souza Filho, Antonio da SilvaOldoni, Tatiane Cadorin2019-10-03T18:19:41Z2019-10-03T18:19:41Z2018-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1050-1060http://dx.doi.org/10.1071/CP18339Crop & Pasture Science. Clayton: Csiro Publishing, v. 69, n. 10, p. 1050-1060, 2018.1836-0947http://hdl.handle.net/11449/18406610.1071/CP18339WOS:000448794500009Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCrop & Pasture Scienceinfo:eu-repo/semantics/openAccess2021-10-23T00:00:07Zoai:repositorio.unesp.br:11449/184066Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:56:21.659899Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Chemical ecology of Eragrostis plana helps understanding of the species' invasiveness in an agroecosystem community
title Chemical ecology of Eragrostis plana helps understanding of the species' invasiveness in an agroecosystem community
spellingShingle Chemical ecology of Eragrostis plana helps understanding of the species' invasiveness in an agroecosystem community
Bittencourt, Henrique von Hertwig
alfalfa
alien flora
exotic dominance
forage weed
rangeland invasion
title_short Chemical ecology of Eragrostis plana helps understanding of the species' invasiveness in an agroecosystem community
title_full Chemical ecology of Eragrostis plana helps understanding of the species' invasiveness in an agroecosystem community
title_fullStr Chemical ecology of Eragrostis plana helps understanding of the species' invasiveness in an agroecosystem community
title_full_unstemmed Chemical ecology of Eragrostis plana helps understanding of the species' invasiveness in an agroecosystem community
title_sort Chemical ecology of Eragrostis plana helps understanding of the species' invasiveness in an agroecosystem community
author Bittencourt, Henrique von Hertwig
author_facet Bittencourt, Henrique von Hertwig
Trezzi, Michelangelo Muzell
Teixeira, Sirlei Dias
Bonome, Lisandro da Silva
Vargas, Aline Garcias de [UNESP]
Souza Filho, Antonio da Silva
Oldoni, Tatiane Cadorin
author_role author
author2 Trezzi, Michelangelo Muzell
Teixeira, Sirlei Dias
Bonome, Lisandro da Silva
Vargas, Aline Garcias de [UNESP]
Souza Filho, Antonio da Silva
Oldoni, Tatiane Cadorin
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Fed Univ Fronteira Sul
Technol Fed Univ Parana
Universidade Estadual Paulista (Unesp)
Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.author.fl_str_mv Bittencourt, Henrique von Hertwig
Trezzi, Michelangelo Muzell
Teixeira, Sirlei Dias
Bonome, Lisandro da Silva
Vargas, Aline Garcias de [UNESP]
Souza Filho, Antonio da Silva
Oldoni, Tatiane Cadorin
dc.subject.por.fl_str_mv alfalfa
alien flora
exotic dominance
forage weed
rangeland invasion
topic alfalfa
alien flora
exotic dominance
forage weed
rangeland invasion
description South African lovegrass (Eragrostis plana Nees) is an aggressive and difficult-to-control species in grazing areas of the south of South America, whose invasion capacity is increased by its phytotoxic capability. The objectives of this work were to identify and quantify chemicals produced by the plant shoots, to evaluate the inhibitory capability of plant extracts on development of lucerne (Medicago sativa L.) and wheat (Triticum aestivum L.), and to determine the spatial distribution of phenolics in rhizosphere soil in an infested field. Extracts were obtained by exhaustive extraction of dry shoot biomass, using solvents in increasing order of polarity. Soil samples contained in the rhizosphere were collected from an infested field. Bioassays for determination of phytotoxicity of extracts on lucerne and wheat seedlings were conducted in a completely randomised design with four replicates. The extracts showed suppressive, stimulating or neutral effects on the development of the radicle, shoots, and total lucerne and wheat seedlings, with greater phytotoxicity, generally, of ethyl acetate and methyl alcohol extracts. In the shoot extracts, nine phenolic compounds were identified and quantified: caffeic acid, coumaric acid, ferulic acid, gallic acid, vanillic acid, catechin, epicatechin, resveratrol, rutin. Of these, four were identified in the soil: catechin, epicatechin, coumaric acid, ferulic acid. Catechin, epicatechin and ferulic acid showed similar distribution patterns in the soil profile, with higher concentrations detected on the surface and on the side opposite the plant crown, which indicates release by the decomposition of tissues deposited on the soil surface. Coumaric acid showed higher concentrations on the surface and in the deeper layer of the soil next to the plant, indicating release both from decomposition of the shoots and from the root system. Future work may explore the phytotoxicity of the analytes identified, either isolated or in admixture, using dose curves and an inhibitory response to target plant species.
publishDate 2018
dc.date.none.fl_str_mv 2018-01-01
2019-10-03T18:19:41Z
2019-10-03T18:19:41Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1071/CP18339
Crop & Pasture Science. Clayton: Csiro Publishing, v. 69, n. 10, p. 1050-1060, 2018.
1836-0947
http://hdl.handle.net/11449/184066
10.1071/CP18339
WOS:000448794500009
url http://dx.doi.org/10.1071/CP18339
http://hdl.handle.net/11449/184066
identifier_str_mv Crop & Pasture Science. Clayton: Csiro Publishing, v. 69, n. 10, p. 1050-1060, 2018.
1836-0947
10.1071/CP18339
WOS:000448794500009
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Crop & Pasture Science
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 1050-1060
dc.publisher.none.fl_str_mv Csiro Publishing
publisher.none.fl_str_mv Csiro Publishing
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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