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Characterization of Meloidogyne enterolobii intercepted from baobab (Adansonia digitata L.) seedlings from Thailand during Japanese import plant quarantine inspection

S. Sekimoto
S. Sekimoto
 e 
T. Inaba
T. Inaba
   | 26 dic 2023
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Article Category: Research Note
Pubblicato online: 26 dic 2023
Pagine: 263 - 271
Ricevuto: 31 mar 2023
Accettato: 07 lug 2023
DOI: https://doi.org/10.2478/helm-2023-0027
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© 2023 S. Sekimoto et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1.

Baobab seedling infested by Meloidogyne enterolobii. (A) Infested baobab seedling; (B) Baobab roots showing galls caused by M. enterolobii; (C, D) Females of M. enterolobii parasitizing roots of baobab (red arrow indicating female).
Baobab seedling infested by Meloidogyne enterolobii. (A) Infested baobab seedling; (B) Baobab roots showing galls caused by M. enterolobii; (C, D) Females of M. enterolobii parasitizing roots of baobab (red arrow indicating female).

Fig. 2.

Light micrographs of Meloidogyne enterolobii intercepted from baobab seedlings. (A) Whole body of second-stage juvenile (J2); (B) Tail of J2; (C–E) Perineal patterns of females.
Light micrographs of Meloidogyne enterolobii intercepted from baobab seedlings. (A) Whole body of second-stage juvenile (J2); (B) Tail of J2; (C–E) Perineal patterns of females.

Fig. 3.

Phylogenetic relationships within Meloidogyne species: Bayesian 50% majority rule consensus trees from two runs as inferred from analysis of the D2–D3 of 28S rRNA gene sequence alignment under the GTR + G model. Posterior probabilities equivalent to or exceeding 70% are given for appropriate clades. New sequence is indicated in bold.
Phylogenetic relationships within Meloidogyne species: Bayesian 50% majority rule consensus trees from two runs as inferred from analysis of the D2–D3 of 28S rRNA gene sequence alignment under the GTR + G model. Posterior probabilities equivalent to or exceeding 70% are given for appropriate clades. New sequence is indicated in bold.

Fig. 4.

Phylogenetic relationships within Meloidogyne species: Bayesian 50% majority rule consensus trees from two runs as inferred from analysis of the intergenic COII-16S rRNA gene sequence alignment under the GTR + G model. Posterior probabilities equivalent to or exceeding 70% are given for appropriate clades. New sequence is indicated in bold.
Phylogenetic relationships within Meloidogyne species: Bayesian 50% majority rule consensus trees from two runs as inferred from analysis of the intergenic COII-16S rRNA gene sequence alignment under the GTR + G model. Posterior probabilities equivalent to or exceeding 70% are given for appropriate clades. New sequence is indicated in bold.

Fig. 5.

Phylogenetic relationships within Meloidogyne species: Bayesian 50% majority rule consensus trees from two runs as inferred from analysis of the COI gene sequence alignment under the GTR + G model. Posterior probabilities equivalent to or exceeding 70% are given for appropriate clades. New sequence is indicated in bold.
Phylogenetic relationships within Meloidogyne species: Bayesian 50% majority rule consensus trees from two runs as inferred from analysis of the COI gene sequence alignment under the GTR + G model. Posterior probabilities equivalent to or exceeding 70% are given for appropriate clades. New sequence is indicated in bold.

Morphometrics of second-stage juveniles of Meloidoyne enterolobii. All measurements are in μm and in the form: mean ± s.d. (range).

Character Thailand China Puerto Rico
This study Yang & Eisenback (1983) Rammah & Hirschmann (1988)
n 10 30 35
L 466.7 ± 33.8 (423.8 – 527.3) 436.6 ± 16.6 (405.0 – 472.9) 453.6 ± 28.4 (390.4 – 528.0)
a 31.2 ± 1.4 (29.0 – 32.9) 28.6 ± 1.9 (24.0 – 32.5) 30.9 ± 1.9 (26.4 – 34.7)
c 8.8 ± 0.8 (8.0 – 10.0) 7.8 ± 0.7 (6.8 – 10.1) 8.3 ± 0.4 (7.0 – 9.2)
Body diam. at mid-body 14.8 ± 0.7 (13.8 – 16.3) 15.3 ± 0.9 (13.9 – 17.8) 14.7 ± 0.5 (13.8 – 15.8)
Stylet length 11.0 ± 0.5 (10.5 – 11.8) 11.7 ± 0.5 (10.8 – 13.0) 11.6 ± 0.3 (11.1 – 12.2)
DGO 2.7 ± 0.5 (2.0 – 3.4) 3.4 ± 0.3 (2.8 – 4.3) 3.9 ± 0.2 (3.3 – 4.3)
Anterior end to median bulb valve 58.0 ± 2.5 (54.5 – 61.3) – 58.2 ± 1.8 (55.2 – 62.9)
Anterior end to excretory pore 92.0 ± 2.1 (89.0 – 94.4) 91.7 ± 3.3 (84.0 – 98.6) 87.6 ± 3.3 (79.9 – 97.9)
Tail length 53.1 ± 4.7 (44.0 – 60.9) 56.4 ± 4.5 (41.5 – 63.4) 54.4 ± 3.6 (49.2 – 62.9)
Length of hyaline part of tail 9.8 ± 3.9 (5.1 – 15.3) – –
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