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First report of Pratylenchus penetrans (Nematoda: Pratylenchidae) associated with artichokes in Vietnam

Open Access
|Jan 2024

Figures & Tables

Figure 1.

A–E: Light microscopy pictures of Pratylenchus penetrans from Vietnam. A–D, F: Female. A: Entire body, B: Anterior part of the body showing lip and pharynx region; C: Lateral field at mid-body; D: Tail region; F: Vulva region showing vulva and post-uterine sac. E: Tail region of the male; G, H: Symptoms of host plants; G: Aerial part; H: Underground part.
A–E: Light microscopy pictures of Pratylenchus penetrans from Vietnam. A–D, F: Female. A: Entire body, B: Anterior part of the body showing lip and pharynx region; C: Lateral field at mid-body; D: Tail region; F: Vulva region showing vulva and post-uterine sac. E: Tail region of the male; G, H: Symptoms of host plants; G: Aerial part; H: Underground part.

Figure 2.

Bayesian phylogenetic tree of Pratylenchus species generated from 18S and D2D3 of 28S rRNA genes using the HKY+G+I and GTR+G+I models, respectively. Posterior Probability support was given next to each node. The sequences from this study were marked by red and bold.
Bayesian phylogenetic tree of Pratylenchus species generated from 18S and D2D3 of 28S rRNA genes using the HKY+G+I and GTR+G+I models, respectively. Posterior Probability support was given next to each node. The sequences from this study were marked by red and bold.

Measurements of Pratylenchus penetrans from artichokes in Vietnam_ All measurements are in μm (except for ratio) and in the form: mean ± s_d_ (range)

CharactersPratylenchus penetrans (Cobb, 1917; Filipjev & Schuurmans Stekhoven, 1941)
SexFemaleMale
n1010
a24 ± 2.1 (21–27)27 ± 1.8 (24–30)
b6.2 ± 0.2 (5.9–6.5)5.7 ± 0.4 (5.3–6.2)
b′3.9 ± 0.1 (3.7–4.1)3.8 ± 0.2 (3.4–4.2)
c17± 0.9 (15.7–18.8)18.1 ± 1.4 (16.5–21)
c′2.3 ± 0.1 (2.1–2.5)2.2 ± 0.1 (2–2.4)
o17.4 ± 1.6 (15.8–20)18.9 ± 2.1 (15.1–22)
Body length (L)502 ± 23 (446–528)441 ± 19 (419–474)
V80 ±1.1 (79–83)
Stylet length15.8 ± 0.6 (15–16.8)14.9 ± 0.5 (14.1–16)
Dorsal gland opening from stylet base (DGO)2.8 ± 0.2 (2.5–3.1)2.8 ± 0.3 (2.3–3.1)
Anterior end to valve of median bulb53 ± 2.1 (50–57)50 ± 2 (48–53)
Anterior end to nerve ring65 ± 2.7 (61–69)62 ± 3.1 (58–67)
Anterior end to secretory-excretory pore81 ± 4.6 (71–88)73 ± 3.4 (69–78)
Anterior end to pharyngo-intestinal junction81 ± 4.5 (71–87)78 ± 5.1 (72–89)
Anterior end to end of pharyngeal gland129 ± 4 (121–136)117 ± 5.6 (110–129)
Pharyngeal gland overlap48 ± 3.2 (43–52)39 ± 4.4 (33–49)
Max body diam.21 ± 1.7 (18.7–23)16.6 ± 1 (15.1–18)
Vulval body diam.19 ± 1.4 (17–21.4)
Post-uterine sac (PUS)26 ± 3.5 (17.7–29)
Anal body diam.13.1 ± 1.1 (11.9–14.9)11 ± 0.6 (10.4–12.4)
Tail length30 ± 2.1 (27–33)24 ± 1.9 (22–27)
Tail annuli at ventral side23 ± 1.5 (21–25)
Spicule length15.2 ± 0.9 (13.6–16.3)
Gubernaculum length4.3 ± 0.3 (3.7–4.9)
PUS/Vulval body diam1.4 ± 0.2 (1–1.6)
DOI: https://doi.org/10.2478/jofnem-2023-0060 | Journal eISSN: 2640-396X | Journal ISSN: 0022-300X
Language: English
Submitted on: Jun 24, 2023
Published on: Jan 23, 2024
Published by: Society of Nematologists, Inc.
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2024 Thi Duyen Nguyen, Huu Tien Nguyen, Thi Mai Linh LE, Quang Phap Trinh, published by Society of Nematologists, Inc.
This work is licensed under the Creative Commons Attribution 4.0 License.