Xiphinema vuittenezi Luc et al. (1964)

Vazifeh, Nasir, Niknam, Gholamreza, Jabbari, Habibeh & Naghavi, Arezoo, 2019, Description of a new dagger nematode, Xiphinema barooghii n. sp. (Nematoda: Longidoridae) and additional data on the three known species of the genus from northwest of Iran, Journal of Nematology 51 (1), pp. 1-17 : 14-15

Xiphinema vuittenezi Luc et al. (1964)

( Fig. 6 I–N ; Table 4 ).

Distribution It was collected from Iran, East-Azarbaijan province, Sufiyan, Roodghat area (GPS coordinates: N 38 o 22′ 10′′ E 46 o 07′ 26′′, altitude 1481 m a.s.l.), from the rhizosphere of common wheat (Triticum aestivum L.).

Remarks

This species is widely spread in Europe. Besides, it has been recorded from Asia, North America, South America and Australia. It inhabits vineyards and various orchards ( Andrássy, 2009). The original description of X. vuittenezi did not consider the presence of spines in the uteri and such structures were not mentioned in the revised polytomous key to the species of Xiphinema by Loof and Luc (1990), although distinct spindle-shaped structures of variable size and number were observed in the tubular portion of the uterus of an Iranian population of X. vuittenezi by Mojtahedi et al. (1980). For the first time in Iran, this species has been reported by Mojtahedi et al. (1980) from different regions of the country. The present Iranian specimens correspond well with the earlier descriptions in their general morphology and morphometrics as the relevant measurements and values are totally coincident or widely overlapping ( Luc et al., 1964; Barsi and Lamberti, 2000b; Kumari and Decraemer, 2006).

Figures

Figure 6: (A–E) Xiphinema index Thorne and Allen, 1950, (A) Anterior end; (B) Tubular part of uterus; (C) Vagina; (D) Pars dilatata oviductus; (E) Tail, (F–H) X. pachtaicum (Tulaganov, 1938) Kirjanova, 1951, (F) Anterior end; (G) Anterior genital branch; (H) Tail, (I–N) X. vuittenezi Luc, Lima, Weischer and Flegg, 1964, (I) Anterior end; (J, L) Uterine differentiation spines; (K) Vagina; (M, N) Tail. (Scale bars =10 μm).

Tables

Table 4. Morphometrics of the Iranian populations of Xiphinema species. All measurements are in μm (except L in mm), and in the form: mean ± s.d. (range).

	X. index	X. pachtaicum	X. vuittenezi
Characters	Female	Female	Female
n	5	5	6
L	2.98 ± 0.18 (2.68 - 3.13)	2.04 ± 0.08 (1.95 - 2.17)	3.51 ± 0.16 (3.25 - 3.76)
a	55.0 ± 4.2 (50.0 - 60.0)	61.0 ± 8.7 (52.0 - 74.0)	69.0 ± 5.0 (63.0 - 78.0)
b	6.7 ± 0.3 (6.3 - 7.3)	6.7 ± 0.6 (6.3 - 7.8)	7.6 ± 0.1 (7.3 - 7.9)
c	76.0 ± 2.4 (74.0 - 80.0)	69.0 ± 3.6 (64.0 - 73.0)	89.0 ± 3.6 (77.0 - 95.0)
c′	1.04 ± 0.05 (1.00 - 1.10)	1.50 ± 0.10 (1.40 - 1.70)	1.10 ± 0.08 (1.00 - 1.20)
V	37.0 ± 0.7 (36.0 - 38.0)	54.0 ± 1.2 (53.0 - 56.0)	49.0 ± 0.4 (47.0 - 50.0)
Lip region diam.	13.0 ± 0.8 (12.0 - 14.0)	9.4 ± 0.5 (9.0 - 10.0)	13.0 ± 0.7 (12.0 - 14.0)
Odontostyle length	121.0 ± 2.7 (118.0 - 125.0)	83.0 ± 2.6 (81.0 - 87.0)	122.0 ± 3.7 (118.0 - 128.0)
Odontophore length	70.0 ± 1.7 (69.0 - 73.0)	50.0 ± 3.3 (44.0 - 54.0)	68.0 ± 4.1 (51.0 - 75.0)
Spear length	192.0 ± 2.7 (189.0 - 195.0)	133.0 ± 2.7 (130.0 - 137.0)	191.0 ± 6.8 (175.0 - 200.0)
Oral aperture to guide ring	114.0 ± 4.3 (106.0 - 119.0)	70.0 ± 3.6 (68.0 - 77.0)	108.0 ± 4.3 (100.0 - 113.0)
Pharynx length	437 ± 11 (421 - 450)	303 ± 20 (250 - 328)	457 ± 11 (443 - 475)
Pharyngeal bulb length	99.0 ± 6.4 (87.0 - 110.0)	77.0 ± 4.6 (72.0 - 84.0)	114 ± 10 (100 - 131)
Body diam. at phar. base	47.0 ± 3.4 (43.0 - 52.0)	29.0 ± 2.2 (26.0 - 32.0)	41.0 ± 2.7 (37.0 - 45.0)
mid-body	54.0 ± 3.8 (45.0 - 59.0)	33.0 ± 2.4 (28.0 - 37.0)	49.0 ± 5.3 (41.0 - 56.0)
anus	35.0 ± 3.5 (31.0 - 40.0)	19.0 ± 1.4 (17.0 - 21.0)	35.0 ± 2.1 (32.0 - 38.0)
G1	13.2 ± 0.4 (13.0 - 14.0)	12.0 ± 1.2 (11.0 - 14.0)	12.6 ± 0.3 (12 - 13)
G2	12.0 ± 1.3 (11.0 - 14.0)	12.0 ± 1.9 (10.0 - 14.0)	12.0 ± 0.8 (11.0 - 13.0)
Prerectum length	320 ± 46 (250 - 381)	168 ± 17 (134 - 187)	496 ± 58 (431 - 575)
Rectum length	30.0 ± 1.9 (27.0 - 32.0)	24.0 ± 3.5 (23.0 - 28.0)	31.0 ± 1.2 (29.0 - 33.0)
Tail length	39.0 ± 0.9 (36.0 - 41.0)	29.0 ± 1.1 (28.0 - 31.0)	39.0 ± 1.4 (38.0 - 41.0)
Hyaline part of tail	17.0 ± 1.4 (15.0 - 19.0)	10.0 ± 0.8 (9.0 - 11.0)	14.0 ± 1.8 (12.0 - 16.0)