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Three species of Xiphinema americanum-group complex (Nematoda: Longidoridae), from Lorestan province, Iran

E. Bazgir
E. Bazgir
, 
A. Naghavi
A. Naghavi
 y 
Z. Zolfaghari
Z. Zolfaghari
   | 19 nov 2020
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Article Category: Research Note
Publicado en línea: 19 nov 2020
Páginas: 394 - 401
Recibido: 15 may 2020
Aceptado: 14 jul 2020
DOI: https://doi.org/10.2478/helm-2020-0036
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© 2020 E. Bazgir, A. Naghavi, Z. Zolfaghari, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1

Xiphinema plesiopachtaicum Archidona-Yuste, Navas-Cortes, Cantalapiedra-Navarrete, Palomares-Rius and Castillo, 2016: A: Entire body, B: Amphid, C: Head, Stylet and Pharynx, D: Anterior genital branch of the female reproductive system and symbiotic bacteria in ovary, E: Posterior end of body.
Xiphinema plesiopachtaicum Archidona-Yuste, Navas-Cortes, Cantalapiedra-Navarrete, Palomares-Rius and Castillo, 2016: A: Entire body, B: Amphid, C: Head, Stylet and Pharynx, D: Anterior genital branch of the female reproductive system and symbiotic bacteria in ovary, E: Posterior end of body.

Fig. 2

Xiphinema oxycaudatum Lamberti & Bleve-Zacheo, 1979: A: Entire body, B: Amphid, C: Head, Stylet and Pharynx, D: Anterior genital branch of the female reproductive system and symbiotic bacteria in ovary, E: Posterior end of body.
Xiphinema oxycaudatum Lamberti & Bleve-Zacheo, 1979: A: Entire body, B: Amphid, C: Head, Stylet and Pharynx, D: Anterior genital branch of the female reproductive system and symbiotic bacteria in ovary, E: Posterior end of body.

Fig. 3

A and B: X. oxycaudatum Lamberti & Bleve-Zacheo, 1979, C and D: X. plesiopachtaicum Archidona-Yuste, Navas-Cortes, Cantalapiedra-Navarrete, Palomares-Rius and Castillo, 2016, E and F: X. pachtaicum (Tulaganov, 1938) Kirjanova, 1951 (Scale bar: A-F=10 μm).
A and B: X. oxycaudatum Lamberti & Bleve-Zacheo, 1979, C and D: X. plesiopachtaicum Archidona-Yuste, Navas-Cortes, Cantalapiedra-Navarrete, Palomares-Rius and Castillo, 2016, E and F: X. pachtaicum (Tulaganov, 1938) Kirjanova, 1951 (Scale bar: A-F=10 μm).

Morphometrics of the Khorramabad, Iran populations of Xiphinema species. All measurements are in μm (except L in mm), and in the form: mean ± s.d. (range).

Species X. oxycaudatum X. pachtaicum X. plesiopachtaicum
Characters ratios* Female Female Female
n 2 4 4
L 1.5 , 1.7 1.87 – 1.93 (1.90 ± 0.02) 1.76 – 1.81 (1.79 ± 0.01)
a 43 , 43 56.5 – 62.5 (58.2 ± 2.2) 61.2 – 66.7 (63 ± 2.1)
b 6 , 6 5.5 – 6.2 (5.8 ± 0.3) 5.4 – 6 (5.7 ± 0.3)
c 50 , 54.5 63.2 – 65.7 (64.5 ± 1.1) 59 – 66 (62.6 ± 2.5)
c´ 1.3 , 1.4 1.6 – 1.8 (1.7 ± 0.1) 1.4 – 1.6 (1.5 ± 0.1)
V 51 , 51 57 – 58 (57.5 ± 0.5) 57 – 59 (58 ± 0.8)
Odontostyle length 79.5 , 81.3 82 – 85.5 (82.8 ± 0.5) 73 – 76 (74.4 ± 1.2)
Odontophore length 43.6 , 46.2 44.5 – 49 (47.5 ± 1.1) 42 – 43.7 (42.9 ± 0.7)
Spear length 124.9 , 125.2 128 – 133.8 (130 ± 2.5) 116 – 118.8 (117.5 ± 1.1)
Lip region diam. 10.5 , 11.5 8.8 – 9 (8.9 ± 0.1) 8.5 – 9.2 (9 ± 0.1)
Oral aperture to guide ring 69.5 , 72 75 – 79.5 (77.9 ± 1.1) 64.5 – 68 (66.4 ± 1.1)
Pharynx length 276 , 282.3 303.5 – 343 (319 ± 15) 297 – 330.5 (310.9 ± 8.5)
Pharyngeal bulb length 68 , 74 67 – 82.5 (74 ± 6) 71 – 81 (76.1 ± 4)
Body diam. at phar. base 31 , 33.5 26.5 – 31.3 (28.6 ± 1.8) 27 – 29.5 (28.2 ± 1)
at mid-body 35 , 39.5 30 – 33 (31.9 ± 1.1) 27 – 29.5 (28.2 ± 1)
at anus 20 , 24.5 16.5 – 17 (16.7 ± 0.2) 18.3 – 19.1 (18.7 ± 0.2)
Tail length 28.5 , 34 29 – 30.5 (29.5 ± 0.3) 27.5 – 30.6 (28.7 ± 1.1)
Hyaline of tail tip 9 , 9.5 9.5 – 10.7 (10.3 ± 0.2) 5.6 – 7 (6.5 ± 0.4)
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