Publicação
Characterization of the oxidative system on Castanea sativa Mill. in association with the ectomycorrhizal fungi Pisolithus tinctorius and Amanita muscaria during the early stages of contact
| Resumo: | Mycorrhizae are symbiotic associations between soil borne fungi and the root system of higher plants having a beneficial role on plant growth. The fungus receives carbon from plant, while the plant increased nutrient uptake mediated via the fungus. In agroforestry systems, most of the mycorrhizae belong to ectomycorrhizal (ECM) group being the mechanisms controlling its development poorly defined. During arbuscular mycorrhizal (AM) establishment, some evidences suggest that a temporal and spatial activation of different defence mechanisms by plants are activated. The present work pretends to assess the influence of ECM inoculation on the activity of antioxidant enzymes from roots of Castanea sativa Mill., during the early stages of contact. The experimental work was carried out in an “in vitro” system, established between two symbiotic associations: Castanea sativa Mill. / Pisolithus tinctorius and Castanea sativa Mill. / Amanita muscaria. In these systems, plants were harvested at different times of fungi contact. The levels of H2O2 and the activity of oxidative stress enzymes, namely catalase (EC 1.11.1.6), superoxide dismutase (EC 1.15.1.1) and ascorbate peroxidase (EC 1.11.1.11), were determined in roots. The results suggest that in the early stages of plant-ECM fungi interaction the oxidative metabolism could be involved, in a similar way as described for plant-AM interactions, where the plants produce enzymatic as well as non-enzymatic defence responses. Preliminary results will be presented and discussed in order to understand the effect of ectomycorrhizal fungi contact on oxidative stress enzyme activities of the host. |
|---|---|
| Autores principais: | Baptista, Paula |
| Outros Autores: | Martins, Anabela; Tavares, Rui Manuel; Lino-Neto, Teresa |
| Assunto: | Ectomycorrhizal Oxidative stress Pisolithus tinctorius Amanita muscaria Castanea sativa Mill. |
| Ano: | 2004 |
| País: | Portugal |
| Tipo de documento: | documento de conferência |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Instituto Politécnico de Bragança |
| Idioma: | inglês |
| Origem: | Biblioteca Digital do IPB |
| _version_ | 1867173319177928704 |
|---|---|
| author | Baptista, Paula |
| author2 | Martins, Anabela Tavares, Rui Manuel Lino-Neto, Teresa |
| author2_role | author author author |
| author_facet | Baptista, Paula Martins, Anabela Tavares, Rui Manuel Lino-Neto, Teresa |
| author_role | author |
| contributor_name_str_mv | Biblioteca Digital do IPB |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Baptista, Paula\",\"Person.identifier.orcid\":\"0000-0001-6331-3731\"},{\"Person.name\":\"Martins, Anabela\",\"Person.identifier.orcid\":\"0000-0001-6218-4413\"},{\"Person.name\":\"Tavares, Rui Manuel\"},{\"Person.name\":\"Lino-Neto, Teresa\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Biblioteca Digital do IPB |
| datacite.creators.creator.creatorName.fl_str_mv | Baptista, Paula Martins, Anabela Tavares, Rui Manuel Lino-Neto, Teresa |
| datacite.date.Accepted.fl_str_mv | 2004-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2011-07-04T14:30:05Z |
| datacite.date.embargoed.fl_str_mv | 2011-07-04T14:30:05Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Ectomycorrhizal Oxidative stress Pisolithus tinctorius Amanita muscaria Castanea sativa Mill. |
| datacite.titles.title.fl_str_mv | Characterization of the oxidative system on Castanea sativa Mill. in association with the ectomycorrhizal fungi Pisolithus tinctorius and Amanita muscaria during the early stages of contact |
| dc.contributor.none.fl_str_mv | Biblioteca Digital do IPB |
| dc.creator.none.fl_str_mv | Baptista, Paula Martins, Anabela Tavares, Rui Manuel Lino-Neto, Teresa |
| dc.date.Accepted.fl_str_mv | 2004-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2011-07-04T14:30:05Z |
| dc.date.embargoed.fl_str_mv | 2011-07-04T14:30:05Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10198/5720 |
| dc.language.none.fl_str_mv | eng |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Ectomycorrhizal Oxidative stress Pisolithus tinctorius Amanita muscaria Castanea sativa Mill. |
| dc.title.fl_str_mv | Characterization of the oxidative system on Castanea sativa Mill. in association with the ectomycorrhizal fungi Pisolithus tinctorius and Amanita muscaria during the early stages of contact |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_c94f |
| description | Mycorrhizae are symbiotic associations between soil borne fungi and the root system of higher plants having a beneficial role on plant growth. The fungus receives carbon from plant, while the plant increased nutrient uptake mediated via the fungus. In agroforestry systems, most of the mycorrhizae belong to ectomycorrhizal (ECM) group being the mechanisms controlling its development poorly defined. During arbuscular mycorrhizal (AM) establishment, some evidences suggest that a temporal and spatial activation of different defence mechanisms by plants are activated. The present work pretends to assess the influence of ECM inoculation on the activity of antioxidant enzymes from roots of Castanea sativa Mill., during the early stages of contact. The experimental work was carried out in an “in vitro” system, established between two symbiotic associations: Castanea sativa Mill. / Pisolithus tinctorius and Castanea sativa Mill. / Amanita muscaria. In these systems, plants were harvested at different times of fungi contact. The levels of H2O2 and the activity of oxidative stress enzymes, namely catalase (EC 1.11.1.6), superoxide dismutase (EC 1.15.1.1) and ascorbate peroxidase (EC 1.11.1.11), were determined in roots. The results suggest that in the early stages of plant-ECM fungi interaction the oxidative metabolism could be involved, in a similar way as described for plant-AM interactions, where the plants produce enzymatic as well as non-enzymatic defence responses. Preliminary results will be presented and discussed in order to understand the effect of ectomycorrhizal fungi contact on oxidative stress enzyme activities of the host. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | conferenceObject |
| fulltext.url.fl_str_mv | https://bibliotecadigital.ipb.pt/bitstreams/9b3c7e2d-41aa-40a2-b18d-76afbadab218/download |
| id | ipb_a43823ed07df74c61d0fbda3d582e3bb |
| identifier.url.fl_str_mv | http://hdl.handle.net/10198/5720 |
| instacron_str | ipb |
| institution | Instituto Politécnico de Bragança |
| instname_str | Instituto Politécnico de Bragança |
| language | eng |
| network_acronym_str | ipb |
| network_name_str | Biblioteca Digital do IPB |
| oai_identifier_str | oai:bibliotecadigital.ipb.pt:10198/5720 |
| organization_str_mv | urn:organizationAcronym:ipb |
| person_str_mv | Baptista, Paula Baptista, Paula https://www.ciencia-id.pt/7D11-FE1E-CD0F 7D11-FE1E-CD0F http://orcid.org/0000-0001-6331-3731 0000-0001-6331-3731 Martins, Anabela Martins, Anabela https://www.ciencia-id.pt/7B18-A810-6B93 7B18-A810-6B93 http://orcid.org/0000-0001-6218-4413 0000-0001-6218-4413 Tavares, Rui Manuel Lino-Neto, Teresa |
| publishDate | 2004 |
| reponame_str | Biblioteca Digital do IPB |
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| service_str_mv | urn:repositoryAcronym:ipb |
| spelling | engporMycorrhizae are symbiotic associations between soil borne fungi and the root system of higher plants having a beneficial role on plant growth. The fungus receives carbon from plant, while the plant increased nutrient uptake mediated via the fungus. In agroforestry systems, most of the mycorrhizae belong to ectomycorrhizal (ECM) group being the mechanisms controlling its development poorly defined. During arbuscular mycorrhizal (AM) establishment, some evidences suggest that a temporal and spatial activation of different defence mechanisms by plants are activated. The present work pretends to assess the influence of ECM inoculation on the activity of antioxidant enzymes from roots of Castanea sativa Mill., during the early stages of contact. The experimental work was carried out in an “in vitro” system, established between two symbiotic associations: Castanea sativa Mill. / Pisolithus tinctorius and Castanea sativa Mill. / Amanita muscaria. In these systems, plants were harvested at different times of fungi contact. The levels of H2O2 and the activity of oxidative stress enzymes, namely catalase (EC 1.11.1.6), superoxide dismutase (EC 1.15.1.1) and ascorbate peroxidase (EC 1.11.1.11), were determined in roots. The results suggest that in the early stages of plant-ECM fungi interaction the oxidative metabolism could be involved, in a similar way as described for plant-AM interactions, where the plants produce enzymatic as well as non-enzymatic defence responses. Preliminary results will be presented and discussed in order to understand the effect of ectomycorrhizal fungi contact on oxidative stress enzyme activities of the host.application/pdfporCharacterization of the oxidative system on Castanea sativa Mill. in association with the ectomycorrhizal fungi Pisolithus tinctorius and Amanita muscaria during the early stages of contactPersonalBaptista, PaulaDSpacehttp://dspace.org/items/3f35226a-b17a-4f7d-8da1-3297105cbfe9DSpacehttp://dspace.org/items/3f35226a-b17a-4f7d-8da1-3297105cbfe9BaptistaPaulaCiência IDhttps://www.ciencia-id.pt7D11-FE1E-CD0FORCIDhttp://orcid.org0000-0001-6331-3731Scopus Author IDhttps://www.scopus.com14051688000Scopus Author IDhttps://www.scopus.com57394839600PersonalMartins, AnabelaDSpacehttp://dspace.org/items/383370dd-10e5-40e6-9a15-f2201fe95581DSpacehttp://dspace.org/items/383370dd-10e5-40e6-9a15-f2201fe95581MartinsAnabelaCiência IDhttps://www.ciencia-id.pt7B18-A810-6B93ORCIDhttp://orcid.org0000-0001-6218-4413Researcher IDhttps://www.researcherid.comG-5488-2013Scopus Author IDhttps://www.scopus.com7203013518Tavares, Rui ManuelLino-Neto, TeresaHostingInstitutionOrganizationalBiblioteca Digital do IPBe-mailmailto:dspace@ipb.ptdspace@ipb.pt2011-07-04T14:30:05Z20042004-01-01T00:00:00ZHandlehttp://hdl.handle.net/10198/5720http://purl.org/coar/access_right/c_abf2open accessEctomycorrhizalOxidative stressPisolithus tinctoriusAmanita muscariaCastanea sativa Mill.584430 bytesother research producthttp://purl.org/coar/resource_type/c_c94fconference objecthttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://bibliotecadigital.ipb.pt/bitstreams/9b3c7e2d-41aa-40a2-b18d-76afbadab218/downloadXIV Congresso Nacional de BioquímicaVilamoura (Portugal) |
| spellingShingle | Characterization of the oxidative system on Castanea sativa Mill. in association with the ectomycorrhizal fungi Pisolithus tinctorius and Amanita muscaria during the early stages of contact Baptista, Paula Ectomycorrhizal Oxidative stress Pisolithus tinctorius Amanita muscaria Castanea sativa Mill. |
| status | SINGLETON |
| subject.fl_str_mv | Ectomycorrhizal Oxidative stress Pisolithus tinctorius Amanita muscaria Castanea sativa Mill. |
| title | Characterization of the oxidative system on Castanea sativa Mill. in association with the ectomycorrhizal fungi Pisolithus tinctorius and Amanita muscaria during the early stages of contact |
| title_full | Characterization of the oxidative system on Castanea sativa Mill. in association with the ectomycorrhizal fungi Pisolithus tinctorius and Amanita muscaria during the early stages of contact |
| title_fullStr | Characterization of the oxidative system on Castanea sativa Mill. in association with the ectomycorrhizal fungi Pisolithus tinctorius and Amanita muscaria during the early stages of contact |
| title_full_unstemmed | Characterization of the oxidative system on Castanea sativa Mill. in association with the ectomycorrhizal fungi Pisolithus tinctorius and Amanita muscaria during the early stages of contact |
| title_short | Characterization of the oxidative system on Castanea sativa Mill. in association with the ectomycorrhizal fungi Pisolithus tinctorius and Amanita muscaria during the early stages of contact |
| title_sort | Characterization of the oxidative system on Castanea sativa Mill. in association with the ectomycorrhizal fungi Pisolithus tinctorius and Amanita muscaria during the early stages of contact |
| topic | Ectomycorrhizal Oxidative stress Pisolithus tinctorius Amanita muscaria Castanea sativa Mill. |
| topic_facet | Ectomycorrhizal Oxidative stress Pisolithus tinctorius Amanita muscaria Castanea sativa Mill. |
| url | http://hdl.handle.net/10198/5720 |
| visible | 1 |