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First report of an important sheat nematode, Hemicycliophora poranga, associated with sugar beet (Beta vulgaris L.) in Vietnam Cover

First report of an important sheat nematode, Hemicycliophora poranga, associated with sugar beet (Beta vulgaris L.) in Vietnam

By: T. D. Nguyen and  Q. P. Trinh  
Open Access
|Sep 2021

Figures & Tables

Fig. 1

Female of Hemicycliophora poranga from Vietnam.
A: entire body. B: posterior end region. C: anterior end region. D: lateral field region. E: vulva region
Female of Hemicycliophora poranga from Vietnam. A: entire body. B: posterior end region. C: anterior end region. D: lateral field region. E: vulva region

Fig. 2

Phylogenetic tree generated from D2-D3 expansion segment of 28S rRNA sequences using GTR+G+I model. Posterior probability (in percentage) was given next to each node. Sequence of Hemicycliophora poranga from Vietnam was marked by red color.
Phylogenetic tree generated from D2-D3 expansion segment of 28S rRNA sequences using GTR+G+I model. Posterior probability (in percentage) was given next to each node. Sequence of Hemicycliophora poranga from Vietnam was marked by red color.

Measurements of females of Hemicycliophora poranga from different localities_ All measurements are in μm (except for ratio)_

H. poranga in this studyH. poranga Monteiro and Lordello (1978)H. poranga from Van den Berg et al. (2018)H. poranga from Subbotin et al. (2014)
LocalityVietnamBrazilSouth AfricaItaly
n10101910
L'1217 ± 42 (1167-1286)---
L1152 ± 41 (1093-1205)1040 (960-1130)1046 ± 59.9 (952-1165)1015 ± 37 (972-1084)
Stylet99 ± 2 (97-102)94 (92-100)92 ± 7 (79-100)91 ± 3.7 (86-96)
cone82 ± 1 (79-84)---
Stylet knob width8.1 ± 0.7 (7.0-9.1)-4.0 ± 0.3 (3.5-4.5)7.2 ± 0.3 (7.0-7.5)
Stylet knob height4.7 ± 0.39 (4.0-5. 3)-7.0 ± 0.6 (6.0-8.0)5.2 ± 0.3 (5.0-5.5)
Distance from anterior end to nerve ring155 ± 6 (143-162)---
Pharynx length190 ± 6 (178-197)-188 ± 8 (176-212)172 ± 8 (158-181)
Distance from anterior end to Secretory-excretory pore199 ± 5 (191-205)184 (160-206)202 ± 27 (182-284)176 ± 7 (170-183)
Mid-body diam.37 ± 3 (34-41)-46 ± 4 (37-50)40 ± 3 (37-45)
Body diam. at vulva32 ± 2 (29-35)-41 ± 4 (33-49)-
Vulva-anus distance58 ± 7 (48-67)-57 ± 8 (49-77)-
Body diam. at anus (ABD)25 ± 1 (23-27)-33 ± 2.3 (30-39)-
Tail length114 ± 8 (100-129)-120 ± 12 (92-140)98 ± 8 (86-109)
Rst30 ± 0.8 (29-31)-28 ± 2 (26-33)31 ± 1.5 (29-34)
Roes58 ± 2 (55-61)-57 ± 2.5 (52-63)63 ± 2.9 (59-67)
Rex61 ± 2 (58-64)62 (59-67)60 ± 2.1 (56-65)65 ± 2.8 (60-68)
Rv68 ± 3 (62-73)5671 ± 5.3 (62-81)75 ± 5 (68-83)
RV(ant)250 ± 6 (235-259)246 (235-266)-254 ± 9 (236-267)
Ran48 ± 2 (44-52)33 (27-37)52 ± 4.8 (43-62)54 ± 4 (46-59)
Rvan20 ± 1 (17-21)23 (20-26)19 ± 2.2 (15-23)21 ± 2 (18-24)
R317 ± 7 (304-326)302 (286-333)313 ± 9.2 (297-330)329 ± 10 (317-345)
V85 ± 0.7 (84-86)85 (84-86)83 ± 0.9 (81-85)81 ± 2 (78-84)
a31 ± 1 (29-32)29 (24.3-32.1)23 ± 1.9 (20-26)26 ± 1 (24-27)
b6.1 ± 0.2 (5.9-6.3)6.3 (5.6-8.4)5.6 ± 0.3 (5.0-5.9)5.9 ± 0.3 (5.5-6.4)
c10.1 ± 0.6 (9.3-10.9)10.1 (8.9-11.2)8.7 ± 0.7 (7.1-10.0)10.4 ± 1 (9.2-12.5)
VL/VB5.4 ± 0.3 (4.8-5.8)4.5 (3.9-4.9)4.5 ± 0.4 (3.8-5.3)5.6 ± 0.4 (4.8-6.1)
DOI: https://doi.org/10.2478/helm-2021-0033 | Journal eISSN: 1336-9083 | Journal ISSN: 0440-6605
Language: English
Page range: 333 - 338
Submitted on: Apr 11, 2021
Accepted on: Jun 23, 2021
Published on: Sep 30, 2021
Published by: Slovak Academy of Sciences, Mathematical Institute
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2021 T. D. Nguyen, Q. P. Trinh, published by Slovak Academy of Sciences, Mathematical Institute
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.