Meloidogyne arenaria infecting Matricaria chamomilla in Brazil

Plants of Matricaria chamomilla L. (Asteraceae), well‐known medicinal species, showing root galls, were collected in Pelotas, state of Rio Grande do Sul (Brazil). Based on morphological (perineal patterns and males), morphometric (males) and esterase phenotypes (Est A2), we identified the infecting...

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Bibliographic Details
Published in:Journal of phytopathology 2023-12, Vol.171 (11-12), p.760-762
Main Authors: Pazdiora, Paulo Cesar, Ramos, Eduarda Kalena Kirsch, Pereira, Matheus Martins, Dias, Alvaro Renato Guerra, Conce, Marianela Conce, Araujo Filho, Jeronimo Vieira
Format: Article
Language:English
Subjects:
first report
German chamomile
Males
Matricaria chamomilla
Medicinal plants
Nematodes
new host
Pathogenicity
Pathogens
Perineum
Phenotypes
root‐knot nematodes
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Summary:Plants of Matricaria chamomilla L. (Asteraceae), well‐known medicinal species, showing root galls, were collected in Pelotas, state of Rio Grande do Sul (Brazil). Based on morphological (perineal patterns and males), morphometric (males) and esterase phenotypes (Est A2), we identified the infecting nematode as the root‐knot nematode M. arenaria. Under greenhouse conditions, four M. chamomilla plants were inoculated with about 1000 specimens obtained from the isolate. We observed about 207 ± 72 nematodes g−1 of roots, confirming its pathogenicity. To the best of our knowledge, this is the first record of M. arenaria parasitizing M. chamomilla in Brazil and elsewhere.
ISSN:0931-1785
1439-0434
DOI:10.1111/jph.13215