Figure 1:
Light microphotographs of Hemicycliophora poranga Monteiro & Lordello, 1978 (A–D), Helicotylenchus dihystera (Cobb, 1893) Sher, 1966 (E–H) and Tylenchorhynchus zeae Sethi & Swarup, 1968 (I–L). A, E: Whole female; B, C, F, I, J: Pharyngeal region; G: Lateral field at midbody; D, H, K: Female posterior region; L: Male posterior region. (All scale bars: = 20 μm).
Table 1.
Morphometrics of Hemicycliophora poranga Monteiro & Lordello, 1978 from Greece.
| Charactera | Hemicycliophora poranga |
|---|---|
| Females | |
| n | 5 |
| L | 983.4 ± 85.3 (900–1117) |
| a | 28.2 ± 1.8 (25.7–30.2) |
| b | 6.0 ± 0.3 (5.8–6.5) |
| c | 10.6 ± 0.7 (9.4–11.2) |
| c’ | 3.8 ± 0.2 (3.6–4.0) |
| V | 81.2 ± 1.3 (80.0–83.0) |
| G1 | 37.7 ± 3.8 (33.6–40.9) |
| Stylet length | 92.8 ± 3.1 (89.0–96.0) |
| O | 8.9 ± 0.9 (7.8–10.0) |
| R | 292.2 ± 15.7 (274–317) |
| Rst | 31.2 ± 1.3 (30.0–33.0) |
| Roes | 59.4 ± 3.6 (55.0–65.0) |
| Rex | 60.2 ± 2.6 (57.0–64.0) |
| RV | 10.6 ± 0.7 (9.4–11.2) |
| Rvan | 19.2 ± 1.9 (17.0–22.0) |
| Ran | 46.0 ± 1.6 (44.0–48.0) |
| VL/VB | 5.1 ± 0.4 (4.7–5.8) |
| Maximum body width | 34.8 ± 1.3 (34.0–37.0) |
| Tail length | 93.0 ± 5.0 (88.0–100.0) |
Abbreviations: a = body length/maximal body width; b = body length/pharyngeal length; c = body length/tail length; c’ = tail length/body width at anus; G1 = anterior genital branch length expressed as percentage (%) of the body length; L = total body length; n = number of specimens studied; O = distance between stylet base and orifice of dorsal pharyngeal gland as percentage of stylet length; R = total number of body annuli; Ran = number of annuli on tail; Rex, number of annuli between anterior end of body and excretory pore; Roes, number of annuli in pharyngeal region; Rst, number of body annuli between labial disc and stylet knobs; RV = number of annuli between posterior end of body and vulva; Rvan = number of annuli between vulva and anus; V = (distance from anterior end to vulva/body length) × 100; VL/VB = distance between vulva and posterior end of body divided by body width at vulva.
Table 2.
Morphometrics of Helicotylenchus dihystera (Cobb, 1893), Sher, 1966 and Tylenchorhynchus zeae Sethi & Swarup, 1968 from Greece.
| Charactera | Helicotylenchus dihystera | Tylenchorhynchus zeae | Tylenchorhynchus zeae |
|---|---|---|---|
| Females | Females | Males | |
| n | 5 | 5 | 3 |
| L | 692.3 ± 54.9 (644–752) | 593.2 ± 43.7 (538–642) | 584.0 ± 45.1 (555–636) |
| a | 26.6 ± 0.4 (26.2–26.9) | 26.1 ± 2.1 (23.4–27.9) | 25.4 ± 1.1 (24.4–26.5) |
| b | 6.0 ± 0.2 (5.9–6.3) | 5.1 ± 0.3 (4.8–5.3) | 4.9 ± 0.4 (4.7–5.2) |
| c | 39.5 ± 3.0 (37.6–42.9) | 19.6 ± 0.6 (18.7–20.2) | 18.8 ± 0.9 (18.1–19.9) |
| c’ | 1.35 ± 0.1 (1.3–1.4) | 2.4 ± 0.1 (2.3–2.5) | 2.4 ± 0.1 (2.3–2.5) |
| V | 64.0 ± 2.0 (62.0–66.0) | 57.5 ± 0.4 (57.2–58.1) | - |
| Stylet length | 25.3 ± 1.5 (24.0–27.0) | 17.1 ± 0.2 (17.0–17.5) | 16.5 ± 0.7 (16.0–17.0) |
| O | 45.5 ± 5.5 (40.5–51.4) | - | - |
| Spicules | - | - | 18.0 ± 1.0 (17.0–19.0) |
| Gubernaculum | - | - | 11.3 ± 0.6 (11.0–12.0) |
| Maximum body width | 26.0 ± 2.0 (24.0–28.0) | 22.7 ± 0.4 (22.0–23.0) | 23.0 ± 1.0 (22.0–24.0) |
| Tail length | 17.7 ± 2.5 (15.0–20.0) | 30.2 ± 1.5 (28.0–32.0) | 31.0 ± 1.0 (30.0–32.0) |
Abbreviations: a = body length/maximal body width; b = body length/pharyngeal length; c = body length/tail length; c’ = tail length/body width at anus; G1 = anterior genital branch length expressed as percentage (%) of the body length; L = total body length; n = number of specimens studied; O = distance between stylet base and orifice of dorsal pharyngeal gland as percentage of stylet length; V = (distance from anterior end to vulva/body length) × 100.