Description of a new subspecies of Bursaphelenchus africanus (Nematoda: Aphelenchoididae) found in packaging wood from Russia

Nematology ◽  
2012 ◽  
Vol 14 (1) ◽  
pp. 27-37 ◽  
Author(s):  
Jianfeng Gu ◽  
Jiangling Wang ◽  
Helen Braasch ◽  
Wolfgang Burgermeister ◽  
Jingwu Zheng
Keyword(s):  
South African ◽  
Female Ratio ◽  
South African Isolate ◽  
Male Ratio ◽  
Female Tail ◽  
Tail Shape ◽  
Males And Females ◽  
Morphological Differences ◽  
African Isolate ◽  
Shape And Size

Bursaphelenchus africanus rossicus subsp. n. was detected from Russian packaging wood (Pinus sp.) arriving in China in August, 2009. The spicule shape and size are almost the same as in the B. africanus found in wood from South Africa, but it differs slightly from the South African isolate by longer (mean L=945 vs 691 μm and 1062 vs 766 μm, for males and females, respectively) and slimmer body (a=39.8 vs 35.0 and 40.0 vs 35.1, for males and females, respectively), higher male ratio c (mean c=37.0 vs 28.7) and higher female ratio c′ (mean c′=4.7 vs 3.4), longer female tail (58 vs 42 μm), and also by female tail shape (slightly ventrally bent vs straight). Their ITS-RFLP patterns are also slightly different. Based on the absence of clear morphological differences and relatively small ITS1/2 and D2/D3 LSU sequence divergences, the new isolate is considered as Bursaphelenchus africanus rossicus subsp. n.

South African isolate of Cryptophlebia leucotreta granulovirus

2003 ◽  
Vol 83 (3) ◽  
pp. 249-252 ◽  
Author(s):  
Shalene Singh ◽  
Sean Moore ◽  
Belinda Spillings ◽  
Don Hendry
Keyword(s):  
South African ◽  
South African Isolate ◽  
African Isolate ◽  
Cryptophlebia Leucotreta

Description of Bursaphelenchus paraparvispicularis n. sp. (Nematoda: Aphelenchoididae) found in packaging wood from Hongkong, China

Nematology ◽  
2010 ◽  
Vol 12 (4) ◽  
pp. 557-566 ◽  
Author(s):  
Jianfeng Gu ◽  
Jiangling Wang ◽  
Weijun Duan ◽  
Helen Braasch ◽  
Wolfgang Burgermeister ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Molecular Phylogenetic Analysis ◽  
Species Status ◽  
Separate Species ◽  
Female Ratio ◽  
Lateral Field ◽  
Female Tail ◽  
Molecular Phylogenetic ◽  
Males And Females

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.

Description of Ruehmaphelenchus thailandae n. sp. (Nematoda: Aphelenchoididae) found in dunnage from Thailand

Nematology ◽  
2010 ◽  
Vol 12 (6) ◽  
pp. 869-876 ◽  
Author(s):  
Jianfeng Gu ◽  
Jiangling Wang
Keyword(s):  
New Species ◽  
Body Length ◽  
Rflp Pattern ◽  
Species Status ◽  
Separate Species ◽  
Lateral Field ◽  
The Third ◽  
Female Tail ◽  
Males And Females ◽  
Shape And Size

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.

Different Babesia canis isolates, different diseases

Parasitology ◽  
1997 ◽  
Vol 115 (5) ◽  
pp. 485-493 ◽  
Author(s):  
TH. P. M. SCHETTERS ◽  
K. MOUBRI ◽  
E. PRÉCIGOUT ◽  
J. KLEUSKENS ◽  
N. C. SCHOLTES ◽  
...  
Keyword(s):  
South African ◽  
Clinical Disease ◽  
Coagulation System ◽  
Babesia Canis ◽  
European Isolate ◽  
South African Isolate ◽  
High Parasitaemia ◽  
Specific Antigens ◽  
Chemotherapeutic Treatment ◽  
African Isolate

Using surface immunofluorescence isolate-specific antigens were detected on the membrane of erythrocytes infected with Babesia parasites. In addition, the strains reacted differently with Plasmagel in that the European isolate (B.c. canis) could be purified on Plasmagel effectively, whereas infected erythrocytes of the South-African isolate (B.c. rossi) could not. Experimental infection of dogs with Babesia canis isolates from geographically different areas revealed different pathology. The European isolate obtained from France exhibited transient parasitaemia, usually below 1%, associated with low PCV values and congestion of internal organs. Clinical disease was correlated with an effect on the coagulation system, and not with peripheral parasitaemia. Infection of dogs with South-African-derived isolate induced high parasitaemia usually much higher than 1%, which required chemotherapeutic treatment. In these animals clinical disease was correlated with peripheral parasitaemia and not with parameters of the coagulation system. The results show that the etiology of disease caused by these isolates of B.c. canis and B.c. rossi is different. This might have implications for the development of vaccines against these infections.

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