First report of an important sheat nematode, Hemicycliophora poranga , associated with sugar beet (Beta vulgaris L.) in Vietnam
and | Sep 30, 2021
About this article
Article Category: Research Note
Published Online: Sep 30, 2021
Page range: 333 - 338
Received: Apr 11, 2021
Accepted: Jun 23, 2021
DOI: https://doi.org/10.2478/helm-2021-0033
Keywords
© 2021 T. D. Nguyen, Q. P. Trinh, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Fig. 1
Fig. 2
Measurements of females of Hemicycliophora poranga from different localities. All measurements are in μm (except for ratio).
| Locality | Vietnam | Brazil | South Africa | Italy |
|---|---|---|---|---|
| n | 10 | 10 | 19 | 10 |
| L' | 1217 ± 42 (1167-1286) | - | - | - |
| L | 1152 ± 41 (1093-1205) | 1040 (960-1130) | 1046 ± 59.9 (952-1165) | 1015 ± 37 (972-1084) |
| Stylet | 99 ± 2 (97-102) | 94 (92-100) | 92 ± 7 (79-100) | 91 ± 3.7 (86-96) |
| cone | 82 ± 1 (79-84) | - | - | - |
| Stylet knob width | 8.1 ± 0.7 (7.0-9.1) | - | 4.0 ± 0.3 (3.5-4.5) | 7.2 ± 0.3 (7.0-7.5) |
| Stylet knob height | 4.7 ± 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 ring | 155 ± 6 (143-162) | - | - | - |
| Pharynx length | 190 ± 6 (178-197) | - | 188 ± 8 (176-212) | 172 ± 8 (158-181) |
| Distance from anterior end to Secretory-excretory pore | 199 ± 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 vulva | 32 ± 2 (29-35) | - | 41 ± 4 (33-49) | - |
| Vulva-anus distance | 58 ± 7 (48-67) | - | 57 ± 8 (49-77) | - |
| Body diam. at anus (ABD) | 25 ± 1 (23-27) | - | 33 ± 2.3 (30-39) | - |
| Tail length | 114 ± 8 (100-129) | - | 120 ± 12 (92-140) | 98 ± 8 (86-109) |
| Rst | 30 ± 0.8 (29-31) | - | 28 ± 2 (26-33) | 31 ± 1.5 (29-34) |
| Roes | 58 ± 2 (55-61) | - | 57 ± 2.5 (52-63) | 63 ± 2.9 (59-67) |
| Rex | 61 ± 2 (58-64) | 62 (59-67) | 60 ± 2.1 (56-65) | 65 ± 2.8 (60-68) |
| Rv | 68 ± 3 (62-73) | 56 | 71 ± 5.3 (62-81) | 75 ± 5 (68-83) |
| RV(ant) | 250 ± 6 (235-259) | 246 (235-266) | - | 254 ± 9 (236-267) |
| Ran | 48 ± 2 (44-52) | 33 (27-37) | 52 ± 4.8 (43-62) | 54 ± 4 (46-59) |
| Rvan | 20 ± 1 (17-21) | 23 (20-26) | 19 ± 2.2 (15-23) | 21 ± 2 (18-24) |
| R | 317 ± 7 (304-326) | 302 (286-333) | 313 ± 9.2 (297-330) | 329 ± 10 (317-345) |
| V | 85 ± 0.7 (84-86) | 85 (84-86) | 83 ± 0.9 (81-85) | 81 ± 2 (78-84) |
| a | 31 ± 1 (29-32) | 29 (24.3-32.1) | 23 ± 1.9 (20-26) | 26 ± 1 (24-27) |
| b | 6.1 ± 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) |
| c | 10.1 ± 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/VB | 5.4 ± 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) |