Description of Bursaphelenchus anamurius sp. n. (Nematoda: Parasitaphelenchidae) from Pinus brutia in Turkey

Nematology ◽  
2007 ◽  
Vol 9 (6) ◽  
pp. 859-867 ◽  
Author(s):  
◽  
Helen Braasch ◽  
Süleyman Akbulut ◽  
Wolfgang Burgermeister ◽  
Martin Brandstetter

AbstractBursaphelenchus anamurius sp. n. isolated from wilted Turkish pine (Pinus brutia Ten.) wood is described. The new species shares several characters with the hofmanni-group sensu Braasch (2001). It is characterised by a body length of 633 (540-749) μm and 744 (638-867) μm for males and females, respectively, stout body (a = 29 in male and 27 in female), stylet 14 μm long in both males and females, lateral field with three lines, length of postuterine branch one-third to one-half of the vulva to anus distance, conoid female tail (c′ = 3.4) with a finely rounded or pointed terminus, very delicate and relatively straight spicules 10 (9-11) μm long with compact capitulum, broad, not distinctly offset condylus and strong rostrum with a more or less rounded tip lacking a cucullus, shovel-shaped bursa and the presence of seven caudal papillae. Bursaphelenchus anamurius sp. n. differs from other species of the hofmanni-group mainly by having smaller, unusually shaped spicules, shorter condylus and no cucullus. The new species can be differentiated from other Bursaphelenchus species morphologically and by means of ITS-RFLP patterns, particularly by digestion of the PCR product with RsaI, HaeIII, MspI, HinfI and AluI.

Zootaxa ◽  
2005 ◽  
Vol 988 (1) ◽  
pp. 1 ◽  
Author(s):  
JIANFENG GU ◽  
JIANCHENG ZHANG ◽  
HELEN BRAASCH ◽  
WOLFGANG BURGERMEISTER

Bursaphelenchus singaporensis sp. n. isolated in China from packaging wood of deciduous trees, imported from Singapore is described and illustrated. This new species clearly belongs to the B. xylophilus group, having males with the typically shaped spicules with a cucullus at their distal extremity, the typical position and number of caudal papillae (three pairs and one single) and the anterior vulval lip of the females developed as a distinct flap. The new species is characterized by a body length of 792 (553–950) µm and 850 (690–961) µm of males and females, respectively, robust body (a= 34 and 31, resp.), 15–16 µm-long stylet, lateral field with four lines, long postuterine branch (averaging 102 µm) and a strongly conoid female tail (c= 20) with a finely rounded, only slightly ventrally-bent terminus, male with very strong spicules (41–48 µm long), distinct rostrum and small cucullus, and a dorso-ventral visible terminal bursa. Bursaphelenchus singaporensis sp. n. is closely related to other species of the B. xylophilus group (B. xylophilus, B. mucronatus, B. kolymensis, B. fraudulentus, B. conicaudatus, B. baujardi and B. luxuriosae) and similar to B. abruptus. The morphological differentiation is mainly based on the shape of the female tail. However, B. singaporensis sp. n. differs from all other species of the B. xylophilus group by larger spicules. The new species can be differentiated from B. abruptus, B. xylophilus, B. mucronatus, B. fraudulentus, B. conicaudatus and B. luxuriosae by means of ITS-RFLP patterns.


Nematology ◽  
2010 ◽  
Vol 12 (6) ◽  
pp. 869-876 ◽  
Author(s):  
Jianfeng Gu ◽  
Jiangling Wang

AbstractRuehmaphelenchus thailandae n. sp., isolated from deciduous dunnage from Thailand, is described and figured. The new species is characterised by the relatively stout body (a = 28.6 and 27.6 for males and females, respectively), three lines in the lateral field, spicules relatively small (12.0-13.3 μm) with weakly developed condylus and rostrum, bursa absent, vulva located at 79.5% of body length, vulval lips slightly swollen, length of post-uterine branch more than half of vulva to anus distance, female tail conoid, ca two anal body diam. long and with a broad terminal process up to 12 μm long. The new species is the third known for the genus. It can be distinguished from R. martinii and R. asiaticus mainly by the different shape and size of its spicules and different shape of the female tail terminus. The separate species status is also supported by ITS-RFLP pattern. Additional measurements of paratype R. asiaticus are appended.


Zootaxa ◽  
2018 ◽  
Vol 4399 (2) ◽  
pp. 197 ◽  
Author(s):  
EBRAHIM SHOKOOHI ◽  
FAHIME IRANPOUR ◽  
VLADA PENEVA ◽  
MILKA ELSHISHKA ◽  
HENDRIKA FOURIE ◽  
...  

During a survey of soil nematodes in Iran, a new species of Ditylenchus Filipjev, 1936 was discovered. Ditylenchus sarvarae sp. n. is characterised by its body length (1.0–1.4 mm), lateral field with seven incisures and without areolation, long postuterine sac (1.8–2.8 times the corresponding body diameter) and conical female tail with pointed tip (68–89 μm long, c = 13.7–18.2, c' = 4.2–5.1). Male specimens have conical tails (64–70 μm long, c = 14.5–16.7, c' = 4.0–4.5), spicules (22–26 μm long) and gubernaculum (8–10 μm long). Measurements and illustrations are provided for this new species. A molecular study of the 28S rDNA region of D. sarvarae sp. n. demonstrates that the Iranian species belongs to a separate group compared with the other molecularly characterized species of genus Ditylenchus. 


Nematology ◽  
2010 ◽  
Vol 12 (4) ◽  
pp. 557-566 ◽  
Author(s):  
Jianfeng Gu ◽  
Jiangling Wang ◽  
Weijun Duan ◽  
Helen Braasch ◽  
Wolfgang Burgermeister ◽  
...  

Abstract Bursaphelenchus paraparvispicularis n. sp. is described and figured from pine packaging wood originating in Hongkong, China, and inspected in Ningbo harbour, China. The new species clearly belongs to the hofmanni group. It is characterised by a relatively stout body (a = 26.7 and 26.5 for males and females, respectively), three lines in the lateral field, seven caudal papillae, spicules relatively small (12.6-15.3 μm), mitten-shaped, with lamina dorsal line smoothly arcuate but calomus relatively straight, condylus squared or round, well developed, rostrum well developed with round terminus, cucullus absent, the shape of the female tail, which is short and ventrally bent with a bluntly pointed terminus, and vulval lips not forming a vulval flap. The new species is morphologically closest to B. parvispicularis and can be distinguished by smaller and stouter body, lower female ratio c′ (average 2.8 vs 4.4) and longer spicule condylus. The separate species status is supported by ITS-RFLP patterns and molecular phylogenetic analysis based on ITS1/2 and partial LSU sequences, which revealed that B. paraparvispicularis n. sp. is closest to B. parvispicularis.


Nematology ◽  
2003 ◽  
Vol 5 (4) ◽  
pp. 565-572 ◽  
Author(s):  
Natsumi Kanzaki ◽  
Kazuyoshi Futai

AbstractBursaphelenchus luxuriosae n. sp. is described and figured. Specimens were collected from a 2-week-old culture on Botrytis cinerea. The new species is characterised by a body length of 897 (710-1159) μm in the female and 745 (621-887) μm in the male, relatively robust body (a = 33-39 in the female and 27-30 in the male), stylet ca 14 (11-16) μm long, four lines in the lateral field, the large (27-30 μm) arcuate spicule with a terminal cucullus, seven (2 + 1 + 2 + 2) male caudal papillae, the long, well developed vulval flap and the shape of the female tail which is long, tapered, and ventrally bent when killed by heat with an irregular or roughened dorsal contour near the tip and an irregular terminus. The new species is considered to belong to the Bursaphelenchus xylophilus group of the genus Bursaphelenchus and is most closely related to B. conicaudatus and B. fraudulentus in spicule shape, vulval flap and 'a' values of males and females. It is easily distinguished from these two species by the morphology of female tail. The RFLP profile confirms the distinctness of the new species within the B. xylophilus group. The phylogenetic status of B. luxuriosae n. sp. within the B. xylophilus group is indicated by molecular phylogenetic analysis. Bursaphelenchus luxuriosae n. sp. is assumed to be close to B. conicaudatus and to have diverged from the ancestor of the B. xylophilus group early in the speciation of the group.


Nematology ◽  
2013 ◽  
Vol 15 (5) ◽  
pp. 601-609 ◽  
Author(s):  
Jianfeng Gu ◽  
Jiangling Wang ◽  
Xianfeng Chen

Bursaphelenchus koreanus sp. n., isolated in Ningbo, P.R. China, from packaging wood made from Pinus sp. imported from South Korea, is described. It is characterised by a slim body (a = 28-35), lateral field with four lines, excretory pore located at level of, or slightly posterior to, median bulb, vulva at 75% of total body length, presence of a distinct vulval flap in lateral view, post-uterine branch extending for ca two-thirds of vulva-anus distance, female tail conical and ventrally bent with slightly pointed, irregular or roughened terminus (c′ = 4.1), spicules large and arcuate (27-34 μm) with pointed rostrum, cucullus visible but sometimes reduced to a small blunt extension. The new species belongs to the xylophilus group and is most similar to B. luxuriosae and B. paraluxuriosae. It is distinguished from other Bursaphelenchus species by morphology, ITS-RFLP patterns and sequencing results.


Nematology ◽  
2014 ◽  
Vol 16 (4) ◽  
pp. 411-418 ◽  
Author(s):  
Jianfeng Gu ◽  
Jie He ◽  
Jiangling Wang ◽  
Xianfeng Chen

Bursaphelenchus yuyaoensisn. sp. is described and figured from dyingPinus massonianain Yuyao, China. The new species clearly belongs to thehofmannigroup. It is characterised by relatively slim body (a = 43.7 and 36.2 for males and females, respectively), three lines in the lateral field, spicules relatively small (11.4-14.7 μm), mitten-shaped with the posterior third of the dorsal limb distinctly curved, condylus round and slightly dorsally bent, rostrum well developed with more or less rounded terminus, distal ends of spicules not forming a clear cucullus, male tail with a mucron-like process, female tail slightly ventrally bent with a bluntly rounded terminus, vulval lip not forming a vulval flap and post-uterine sac extending for about half the vulva-anus distance. The separate species status is supported by ITS-RFLP patterns and molecular phylogenetic analysis based on ITS1/2 sequences, which revealed thatB. yuyaoensisn. sp. is close toB. parvispicularisandB. paraparvispicularis.


Nematology ◽  
2021 ◽  
pp. 1-10
Author(s):  
Jianfeng Gu ◽  
Yiwu Fang ◽  
Xinxin Ma ◽  
Xiaoling Lü ◽  
Xianfeng Chen

Summary Ruehmaphelenchus taedae n. sp., isolated from Loblolly pine logs (Pinus taedae L.) from the USA, is described and figured. It is characterised by a relatively slim body (a = 42 and 43 for males and females, respectively), three lines in the lateral field, male spicules relatively small (12-18 μm) with high and dorsally bent condylus and weakly developed rostrum, bursal flap absent, short tail possessing a long terminal spike ending in a bluntly rounded tip and 8.7-13.3 μm long, vulva positioned at ca 83% of body length, vulval flap absent, vulval lips slightly protruding, post-vulval uterine branch extending for less than half of vulva to anus distance, and female tail conoid, ca 3-4 anal body diam. long, with 13.7-18.5 μm terminal projection. The new species can be separated from all other species of the genus by the male tail possessing a long terminal spike and the more anterior excretory pore. Detailed phylogenetic analysis based on 28S D2-D3 region sequences confirmed the status of this nematode as a new species.


Nematology ◽  
2016 ◽  
Vol 18 (1) ◽  
pp. 29-37 ◽  
Author(s):  
Mehrab Esmaeli ◽  
Ramin Heydari ◽  
Pablo Castillo ◽  
Juan E. Palomares-Rius

A new species of the genus Nothotylenchus, N. persicus n. sp. was collected around the roots of grapevine and is described and illustrated herein based on morphological and molecular studies. The new species is characterised by a body length of 776-900 μm, delicate stylet 5-6 μm long, six lines in the lateral field, post-vulval uterine sac short, 10-18 μm long, female tail elongate-conoid with pointed terminus, and bursa covering 40-45% of tail length. Morphologically, N. persicus n. sp. appears closer to four known species of the genus, namely: N. hexaglyphus, N. affinis, N. medians and N. taylori. The results of phylogenetic analyses based on sequences of D2-D3 expansion region of 28S rRNA gene confirmed the close molecular relationship between N. persicus n. sp. and other anguinids, but Nothotylenchus claded separately from Ditylenchus species.


Nematology ◽  
2013 ◽  
Vol 15 (3) ◽  
pp. 279-289 ◽  
Author(s):  
Xuan Wang ◽  
Pei Wang ◽  
Jianfeng Gu ◽  
Jiangling Wang ◽  
Hongmei Li

Aphelenchoides xui sp. n. is described and illustrated from imported packaging wood from South Africa intercepted at Ningbo Port, China. The new species has a body length of 564-820 μm (males) and 549-882 μm (females). The cuticle is weakly annulated with four lines in the lateral field. The stylet is 11-13 μm long and has small basal swellings. The excretory pore is located ca one body diam. posterior to the median bulb, or 75-100 μm from the head. Spicules are relatively large (18-23 μm) with apex and rostrum rounded and well developed and the end of the dorsal limb clearly curved ventrad like a hook. The male tail bears six (2 + 2 + 2) caudal papillae. The spermatheca is axial and oblong and contains disc-like sperm. The female tail is conical, terminating in a complicated step-like projection, usually with many tiny nodular protuberances. The new species is morphologically similar to A. arcticus, A. haguei and A. parasaprophilus in Group 2 sensu Shahina, but is distinguished by spicule shape and form of the female tail terminus. Phylogenetic analysis based on SSU and partial LSU sequences revealed that A. xui sp. n. was closest to A. varicaudatus, although some species of Laimaphelenchus and Schistonchus were also included in the same branch.


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