01551naa a2200241 a 450000100080000000500110000800800410001902200140006002400440007410000260011824500990014426000090024352008490025265000140110165000100111565000150112565000140114070000200115470000230117470000280119770000170122577300670124221381862021-12-21       2021    bl uuuu     u00u1 u    #d  a1573-84697 adoi.org/10.1007/s10658-021-02231-w2DOI1 aMACHACA-CALSIN, C. P.  aOccurrence of Meloidogyne morocciensis parasitizing beetroot in Brazil.h[electronic resource]  c2021  aBeetroot plants cv. Boro exhibiting multiple root galls similar to those symptoms associated with root-knot nematodes (RKNs) were detected in the municipality of Rio Grande, Rio Grande do Sul state, Brazil. The nematode identification was based on an integrative taxonomy. Perineal patterns of females were similar to Meloidogyne arenaria and M. incognita whereas isoenzymatic phenotypes α-esterase A3 and malate dehydrogenase N1 were typical to M. morocciensis. Measurements of second-stage juveniles and males corresponded to the same species. Beetroot plants inoculated with 2.000 specimens of RKN showed reduction of fresh weight of shoots (37%) and roots (30%). The nematode reproduction factor was 11.9. Our study provides the first evidence that M. morocciensis causes root-knot disease in beetroot cv. Boro in Brazil and elsewhere.  aBeterraba  aGalha  aNematóide  aTaxonomia1 aSILVA, W. R. da1 aGRINBERG, P. da S.1 aARAÚJO FILHO, J. V. de1 aGOMES, C. B.  tEuropean Journal of Plant Pathologygv. 160, p. 239-242, 2021.