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First report of rice root-knot nematode, Meloidogyne graminicola, infecting Juncus microcephalus in Brazil.

Abstract: Juncus microcephalus plants showing symptoms of root-knot nematode infestation were observed in the municipality of Agudo, Rio Grande do Sul state, Brazil. Based on morphological observation, esterase phenotypes, and molecular analyses of rDNA-ITS and D2-D3 regions of 28S rDNA, the causal...

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Main Author: BELLÉ, CH (author)
Other Authors: DOS SANTOS, P.S (author), KASPARY, T. E. (author)
Format: article
Language:English
Published: 2021
Subjects:
Identification.
Molecular analyses
EST phenotype
Root-knot nematodes
BRASIL
RIO GRANDE DO SUL
Online Access:https://ainfo.inia.uy/consulta/busca?b=pc&id=62000&biblioteca=vazio&busca=62000&qFacets=62000
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Summary:Abstract: Juncus microcephalus plants showing symptoms of root-knot nematode infestation were observed in the municipality of Agudo, Rio Grande do Sul state, Brazil. Based on morphological observation, esterase phenotypes, and molecular analyses of rDNA-ITS and D2-D3 regions of 28S rDNA, the causal agent of the observed symptoms was identified as Meloidogyne graminicola. Pathogenicity of M. graminicola was confirmed by fulfilling modified Koch?s postulates. To our knowledge, this is the first report of M. graminicola in J. microcephalus in Rio Grande do Sul State, Brazil.

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