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First report of root-knot nematode, Meloidogyne incognita, infecting hops, Humulus lupulus, in São Paulo, Brazil

R. F. Gonsaga

R. F. Gonsaga

Department of Agricultural Production Sciences, School of Agricultural and Veterinarian Sciences, São Paulo State University (Unesp)Jaboticabal, Brazil
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Gonsaga, R. F.
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A. Souza Pollo

A. Souza Pollo

Department of Agricultural Production Sciences, School of Agricultural and Veterinarian Sciences, São Paulo State University (Unesp)Jaboticabal, Brazil
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Pollo, A. Souza
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D. D. Nascimento

D. D. Nascimento

Department of Agricultural Production Sciences, School of Agricultural and Veterinarian Sciences, São Paulo State University (Unesp)Jaboticabal, Brazil
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Nascimento, D. D.
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R. J. Ferreira

R. J. Ferreira

Department of Agricultural Production Sciences, School of Agricultural and Veterinarian Sciences, São Paulo State University (Unesp)Jaboticabal, Brazil
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Ferreira, R. J.
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L. T. Braz

L. T. Braz

Department of Agricultural Production Sciences, School of Agricultural and Veterinarian Sciences, São Paulo State University (Unesp)Jaboticabal, Brazil
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Braz, L. T.
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P. L. M. Soares

P. L. M. Soares

Department of Agricultural Production Sciences, School of Agricultural and Veterinarian Sciences, São Paulo State University (Unesp)Jaboticabal, Brazil
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Soares, P. L. M.
  
01 gen 2021
First report of root-knot nematode, Meloidogyne incognita, infecting hops, Humulus lupulus, in São Paulo, Brazil's Cover Image
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Pubblicato online: 01 gen 2021
Pagine: 1 - 4
DOI: https://doi.org/10.21307/jofnem-2021-008
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© 2021 Authors, published by Sciendo.
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1:

A. Hop roots, Humulus lupulus L. (Mantiqueira cultivar), with galls formed by Meloidogyne incognita (Kofoid and White, 1919) Chitwood, 1949; B. Roots with apparent nodules, characterizing the galls; C. Isoenzymatic esterase phenotype (I1 = M. incognita) of females recovered from hops roots Mi.1 and Mi.2; J3 = M. javanica (Treub, 1885) Chitwood, 1949, control. Trapezoidal labial region of male (a), a prominent labial disc in relation to the submedian lips with transverse streaks (b) and the stylet basal knobs height than wide (c); D. Perineal region of a female with high, trapezoidal dorsal arch and thick streaks, typical of M. incognita. São Paulo, Brazil.
A. Hop roots, Humulus lupulus L. (Mantiqueira cultivar), with galls formed by Meloidogyne incognita (Kofoid and White, 1919) Chitwood, 1949; B. Roots with apparent nodules, characterizing the galls; C. Isoenzymatic esterase phenotype (I1 = M. incognita) of females recovered from hops roots Mi.1 and Mi.2; J3 = M. javanica (Treub, 1885) Chitwood, 1949, control. Trapezoidal labial region of male (a), a prominent labial disc in relation to the submedian lips with transverse streaks (b) and the stylet basal knobs height than wide (c); D. Perineal region of a female with high, trapezoidal dorsal arch and thick streaks, typical of M. incognita. São Paulo, Brazil.

Figure 2:

Molecular specific identification of Meloidogyne incognita (Kofoid and White, 1919) Chitwood, 1949, from roots of Humulus lupulus L. (Mi.1; Mi.2, Mi.3); L: 100 bp Plus DNA Ladder (Thermo Scientific); J3: negative control of Meloidogyne javanica (Treub, 1885) Chitwood, 1949, species; CN: negative control of PCR reaction; PC: positive control of M. incognita.
Molecular specific identification of Meloidogyne incognita (Kofoid and White, 1919) Chitwood, 1949, from roots of Humulus lupulus L. (Mi.1; Mi.2, Mi.3); L: 100 bp Plus DNA Ladder (Thermo Scientific); J3: negative control of Meloidogyne javanica (Treub, 1885) Chitwood, 1949, species; CN: negative control of PCR reaction; PC: positive control of M. incognita.
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