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dc.contributor.author
Martos, Gustavo Gabriel
dc.contributor.author
Tomas Grau, Rodrigo Hernán
dc.contributor.author
Marino, María Carla
dc.contributor.author
Mamani, Alicia Ines de Fatima
dc.contributor.author
Diaz Ricci, Juan Carlos
dc.date.available
2023-01-11T14:41:04Z
dc.date.issued
2020-06
dc.identifier.citation
Martos, Gustavo Gabriel; Tomas Grau, Rodrigo Hernán; Marino, María Carla; Mamani, Alicia Ines de Fatima; Diaz Ricci, Juan Carlos; Defense elicitation activity of the ellagitannin HeT depends on its redox state; Elsevier Science; Scientia Horticulturae; 267; 6-2020; 1-6
dc.identifier.issn
0304-4238
dc.identifier.uri
http://hdl.handle.net/11336/184338
dc.description.abstract
It was previously reported that the ellagitannin HeT obtained from strawberry leaves can elicit a defense response in strawberry and lemon plants, and exhibits antibacterial properties. It was also shown that the antibacterial activity was due to a strong interaction with bacterial membrane affecting the electron flux involved in the oxygen consumption, and as result of this interaction HeT becomes irreversibly oxidized. The aim of this paper was to investigate whether HeT is oxidized in contact with plant cells, and the influence of the redox state of HeT on the activation of a defense response; consequently, on the capacity of HeT to protect strawberry plants against a virulent pathogen. Results showed that HeT is rapidly oxidized by contact with the mesophilic cells of the strawberry, as previously reported with the bacterial cells, and only the reduced species of HeT (HeT-red) induce a defense response that protects plants against the virulent isolate M11 of Colletotrichum acutatum. Also, strawberry plants treated with the HeT-red exhibits a biphasic ROS accumulation. By contrary the oxidized species (HeT-ox) had no effect on plants. Evaluation of genes associated to the activation of a defense response depending on the salicylic acid (e.g. FaPR1, FaChi2-2) and ethylene pathways (e.g. FaERS1 and FaETR1) showed that HeT-red, but not HeT-ox, caused the upregulation of all of them 48 hpt. These findings indicate that only the reduced species of HeT is capable to induce a defense response which provides the plant protection against a virulent isolated of C. acutatum.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
DEFENSE
dc.subject
ELICITOR
dc.subject
ELLAGITANNIN
dc.subject
OXIDATION
dc.subject
STRAWBERRY
dc.subject.classification
Agricultura
dc.subject.classification
Agricultura, Silvicultura y Pesca
dc.subject.classification
CIENCIAS AGRÍCOLAS
dc.title
Defense elicitation activity of the ellagitannin HeT depends on its redox state
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-09-07T14:49:49Z
dc.journal.volume
267
dc.journal.pagination
1-6
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Martos, Gustavo Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Investigaciones Biológicas. Universidad Nacional de Tucumán. Instituto Superior de Investigaciones Biológicas; Argentina
dc.description.fil
Fil: Tomas Grau, Rodrigo Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Investigaciones Biológicas. Universidad Nacional de Tucumán. Instituto Superior de Investigaciones Biológicas; Argentina
dc.description.fil
Fil: Marino, María Carla. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones en Hidratos de Carbono. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones en Hidratos de Carbono; Argentina
dc.description.fil
Fil: Mamani, Alicia Ines de Fatima. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Investigaciones Biológicas. Universidad Nacional de Tucumán. Instituto Superior de Investigaciones Biológicas; Argentina
dc.description.fil
Fil: Diaz Ricci, Juan Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Investigaciones Biológicas. Universidad Nacional de Tucumán. Instituto Superior de Investigaciones Biológicas; Argentina
dc.journal.title
Scientia Horticulturae
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0304423820301400
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.scienta.2020.109312
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