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dc.contributor.authorHOYOS, J. M. A.
dc.contributor.authorDORIGAN, A. F.
dc.contributor.authorSILVEIRA, P. R. da
dc.contributor.authorLABORY, C. R. G.
dc.contributor.authorRIBEIRO JUNIOR, P. M.
dc.contributor.authorFERNANDES, R.
dc.contributor.authorALVES, E.
dc.date.accessioned2025-05-05T11:47:32Z-
dc.date.available2025-05-05T11:47:32Z-
dc.date.created2025-05-05
dc.date.issued2025
dc.identifier.citationEuropean Journal of Plant Pathology, Feb. 2025.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1175274-
dc.descriptionThe major disease of the common bean, anthracnose, is caused by the hemibiotrophic fungus Colletotrichum lindemuthianum and results in significant economic losses. In the present study, we evaluated: (i) the antifungal activity of 26 essential oils (EOs) in the germination and mycelial growth of two isolates of C. lindemuthianum, one of race 65 (LV 136) and the other of race 73 (LV 99), (ii) ultrastructural changes of Cymbopogon citratus, Eugenia caryophyllata and Cymbopogon martini EOs in fungal conidia, (iii) the effect of these EOs on anthracnose control, applied before and after inoculation, and (iv) the effect of C. citratus EOs on the activity of defense enzymes Chitinase (CHI), Polyphenol oxidase (PPO), Guaiacol peroxidase (POX) and Phenylalanine ammonia-lyase (PAL) on bean plants. Of the 26 EOs, 95% of the conidial germination was inhibited by C. citratus, C. martini, Cinnamomum sp., T. vulgaris, E. caryophyllata, and M. recutita at concentrations lower than 0.1%. Mycelial growth was completely inhibited by C. citratus, E. caryophyllata and C. martini at 0.1% for both races. There was little mycelial growth in the fungicide treatment 4 day after infection, DAI. Transmission electron microscopy (TEM) ultrastructure showed that C. citratus, C. martini and E. caryophyllata had direct antifungal action against C. lindemuthianum. These EOs damaged the conidia's ultrastructure by causing vacuolization, cytoplasmic leakage, and plasma membrane invagination. The activity of plant defense enzymes increased in the treatment with C. citratus. Moreover, Cymbopogon citratus and E. caryophyllata decreased anthracnose severity in both the preventive and the curative experiment by 29% and 21%, respectively. Essential oils demonstrated potential for the management of anthracnose in bean crops caused by C. lindemuthianum.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectControle alternativo
dc.subjectDoenças de plantas
dc.subjectDoenca de plantas
dc.subjectAtividade antifúngica
dc.titleAntifungal activity of essential oils in Colletotrichum lindemuthianum and alternative control of bean anthracnose.
dc.typeArtigo de periódico
dc.subject.thesagroFeijão
dc.subject.thesagroColletotrichum Lindemuthianum
dc.subject.thesagroAntracnose
dc.subject.thesagroDoença
dc.subject.thesagroFungo
dc.subject.thesagroÓleo Essencial
dc.subject.nalthesaurusTransmission electron microscopy
dc.subject.nalthesaurusPlant diseases and disorders
dc.subject.nalthesaurusAnthracnose
dc.subject.nalthesaurusBeans
dc.description.notesOn line.
riaa.ainfo.id1175274
riaa.ainfo.lastupdate2025-05-05
dc.identifier.doi10.1007/s10658-025-03010-7
dc.contributor.institutionJULIÁN MAURICIO AGREDO HOYOS, UNIVERSIDADE FEDERAL DE LAVRAS; ADRIANO FRANCIS DORIGAN, UNIVERSIDADE FEDERAL DE LAVRAS; PATRÍCIA RICARDINO DA SILVEIRA, UNIVERSIDADE FEDERAL DE LAVRAS; CLAUDIA REGINA GONTIJO LABORY, UNIVERSIDADE FEDERAL DE LAVRAS; PEDRO MARTINS RIBEIRO JUNIOR, CPATSA; RAFAEL FERNANDES, UNIVERSIDADE FEDERAL DE LAVRAS; EDUARDO ALVES, UNIVERSIDADE FEDERAL DE LAVRAS.
Aparece en las colecciones:Artigo em periódico indexado (CPATSA)

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