Xiphinema japonicum n. sp. (Nematoda: Longidorinae) from the Rhizosphere of Japanese Podocarpus macrophyllus (Thunb.), a Cryptic Species Related to Xiphinema bakeri Williams, 1961
, , , and | Sep 26, 2018
About this article
Published Online: Sep 26, 2018
Page range: 404 - 417
Received: Sep 24, 2017
DOI: https://doi.org/10.21307/jofnem-2017-090
Keywords
© 2017 LIRONG ZHAO et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
FIG. 1.
FIG. 2.
FIG. 3.
FIG. 4.
FIG. 5.
FIG. 6.
FIG. 7.
Morphometrics data for Xiphinema japonicum n. sp. (measurements μm; mean ± s.d. (range) for paratype).
| Character/ratios | Female | J2 | J3 | J4 | |
|---|---|---|---|---|---|
| Holotype | Paratypes | Paratypes | Paratypes | Paratypes | |
| n | 1 | 9 | 2 | 3 | 7 |
| L | 3,289 | 3,272 ± 198.4 (2,965–3,757) | 1,217 ± 8.9 (1,211–1,224) | 1,846 ± 46.4 (1,779–1,889) | 2,509.6 ± 224.6 (2,262–2,813) |
| a | 72.2 | 67.1 ± 6.2 (56.2–75.8) | 39.2 ± 4.3 (36.1–42.2) | 47.2 ± 5.9 (42.6–53.8) | 54.2 ± 5.4 (45.9–62.5) |
| b | 7.0 | 7.2 ± 0.4 (6.6–7.7) | 4.4 ± 0.07 (4.3–4.4) | 5.0 ± 0.4 (4.6–5.4) | 5.7 ± 0.6 (4.8–6.6) |
| c | 62.1 | 62 ± 3.6 (55–69) | 18.0 ± 0.5 (17.6–18.3) | 26.0 ± 1.6 (24.6–27.8) | 41.8 ± 3.8 (38.5–48.4) |
| c′ | 1.5 | 1.5 ± 0.1 (1.3–1.7) | 3.3 ± 0.4 (3.0–3.5) | 2.8 ± 0.3 (2.5–3.1) | 1.9 ± 0.2 (1.7–2.2) |
| V | 31.1 | 32.2 ± 1.4 (30.5–35.3) | - | - | - |
| Lip diam. | 12.1 | 12.0 ± 0.5 (10.6–12.4) | 8.3 ± 0.3 (8.1–8.5) | 9.7 ± 0.8 (9.0–10.6) | 10.7 ± 0.2 (10.4–10.9) |
| Lip height | 4.5 | 4.7 ± 0.6 (4.0–5.6) | 3.3 ± 0.07 (3.2–3.3) | 4.3 ± 0.1 (4.3–4.4) | 4.7 ± 0.3 (4.3–5.0) |
| Odontostyle | 126.1 | 122.6 ± 2.3 (119–126) | 61.1 ± 1.5 (60.0–62.1) | 84.0 ± 1.9 (82.6–86.0) | 104.3 ± 3.5 (101.2–109.2) |
| Odontophore | 74.5 | 72.6 ± 3.5 (64.4–77) | 44.6 ± 1.0 (43.9–45.3) | 51.5 ± 0.8 (50.8–52.3) | 62.9 ± 3.5 (56.4–66.2) |
| Total stylet | 201.4 | 195.2 ± 3.6 (190–201.4) | 106 ± 0.1 (105.3–106.7) | 135.3 ± 2.6 (133.1–138.3) | 167.3 ± 3.0 (164.5–172.6) |
| Replacement odontostyle | - | 86.1 ± 3.5 (83.6–88.6) | 105.3 ± 3.2 (101.8–108.1) | 123.5 ± 4.5 (117.4–128.3) | |
| Distance from anterior end to guide ring | 121.0 | 115.4 ± 6.2 (100.5–121.7) | 57.6 ± 1.0 (56.9–58.3) | 74.7 ± 7.4 (67.0–81.7) | 89.3 ± 7.7 (78.9–99.6) |
| Pharynx | 468.8 | 452.3 ± 13.5 (431–469.6) | 278.7 ± 1.6 (277.5–279.8) | 370.3 ± 20.8 (348.6–390) | 442.8 ± 28.6 (414.0–489.8) |
| Pharyngeal bulb length | 109.1 | 104.5 ± 3.4 (100.1–110.2) | 62.9 ± 7.1 (57.8–67.9) | 83.4 ± 7.1 (75.4–88.6) | 91.9 ± 12.4 (74.4–104.5) |
| Pharyngeal bulb diam. | 25.1 | 24.1 ± 1.7 (22.1–27.7) | 18.2 ± 0.5 (17.8–18.5) | 23.0 ± 0.7 (22.2–23.5) | 24.0 ± 2.4 (20.4–26.8) |
| Body diam. | 45.5 | 49.2 ± 6.2 (41–58.2) | 31.3 ± 3.2 (29–33.6) | 39.8 ± 4.2 (35.1–43.3) | 46.7 ± 5.1 (37.7–51.4) |
| Body diam. at guide ring | 37.5 | 38 ± 1.2 (36.4–40.3) | 20.4 ± 1.1 (19.6–21.2) | 29.6 ± 3.3 (26.7–33.1) | 35.5 ± 3.0 (32.2–39.5) |
| Body diam. at the base of pharynx | 46.1 | 46.3 ± 3.7 (40–51.4) | 30.3 ± 1.8 (29–31.5) | 37.2 ± 4.2 (32.4–40.3) | 43.8 ± 4.1 (37–47.8) |
| Body diam. at vulva | 48.6 | 49.3 ± 5.1 (42.2–55.6) | - | - | - |
| Anterior genital branch length | 328.0 | 328.5 ± 24.7 (286–363.0) | - | - | - |
| Posterior genital branch length | 335.0 | 380.6 ± 62.8 (299–497) | - | - | - |
| Distance from anterior end to vulva | 1,024 | 1,054.2 ± 70.1 (938–1,157) | - | - | - |
| Anal diam. | 34.6 | 34.6 ± 2.7 (31.6–41.6) | 20.9 ± 2.7 (19–22.8) | 26.7 ± 3.4 (24.5–30.7) | 31.2 ± 2.3 (28.2–33.8) |
| Tail | 52.9 | 53.0 ± 2.0 (47.0–56.9) | 67.9 ± 1.3 (67–68.8) | 71.2 ± 6.1 (64.7–76.7) | 58.8 ± 4.9 (55.7–65.0) |
| Hyaline tail part | 16.1 | 19.3 ± 2.2 (15.5–23) | 16.7 ± 0.4 (16.4–16.9) | 22.1 ± 2.1 (20.1–24.3) | 21.2 ± 2.2 (18.9–24.7) |