Panicum maximum as a reservoir of a potential maize pathogen
| Autor: | Maruzanete Pereira de Melo, K. S. Matos, Ubiraci Gomes de Paula Lana, Patrícia Gomes Cardoso, Sarah da Silva Costa Guimarães, Silvino Intra Moreira, Natália da Costa Maia |
|---|---|
| Přispěvatelé: | Universidade Federal de Lavras, Universidade Federal do Acre, Universidade Federal de Roraima, UBIRACI GOMES DE PAULA LANA, CNPMS, Universidade Federal de Lavras. |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine Fusarium Plant Science Horticulture 01 natural sciences Plant use of endophytic fungi in defense Filogenia molecular 03 medical and health sciences chemistry.chemical_compound Planta Forrageira Milho Botany Mycotoxin Pathogen biology Phylogenetic tree Inoculation food and beverages Gigantea Doença de Planta biology.organism_classification 030104 developmental biology chemistry Patógeno Agronomy and Crop Science Panicum 010606 plant biology & botany |
| Zdroj: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice) Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
| Popis: | Endophytic fungi are capable of infecting plants without inducing the development of any observable symptoms. Certain fungal species can also coexist as latent pathogens in their specific hosts. Several species of Fusarium have been reported to form an association with grasses as endophytes or latent pathogens, some of which are also mycotoxin producers. In this study, we aimed to address whether forage grasses could act as potential reservoirs of species that are pathogenic to maize (Zea mays). To this end, we performed morphological and phylogenetic analyses of the elongation factor 1-α (EF-1α) and the second largest subunit of RNA polymerase II (RPB2) genes and characterized three fungal strains isolated from Panicum maximum (cv. Mombaça) as a new phylogenetic species, Fusarium gigantea, within the Fusarium fujikuroi species complex. Moreover, the results of the pathogenicity test such as the toothpick inoculation assay, revealed that these species caused the stalk rot disease in maize when maintained under greenhouse conditions. This finding highlights P. maximum as a potential reservoir of this pathogen and its role as a threat to maize cultivation. Made available in DSpace on 2021-09-26T02:02:26Z (GMT). No. of bitstreams: 1 Panicum-maximum.pdf: 996965 bytes, checksum: 8c1720f8ade5e2b087f525210423a4db (MD5) Previous issue date: 2021 |
| Databáze: | OpenAIRE |
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