scholarly journals Phenotypic and Genetic Characterization of Clinical Isolates of CDC Coryneform Group A-3: Proposal of a New Species of Cellulomonas, Cellulomonas denverensis sp. nov.

2005 ◽  
Vol 43 (4) ◽  
pp. 1732-1737 ◽  
Author(s):  
J. M. Brown ◽  
R. P. Frazier ◽  
R. E. Morey ◽  
A. G. Steigerwalt ◽  
G. J. Pellegrini ◽  
...  
Parasitology ◽  
2009 ◽  
Vol 136 (8) ◽  
pp. 875-885 ◽  
Author(s):  
L. M. McINNES ◽  
A. GILLETT ◽  
U. M. RYAN ◽  
J. AUSTEN ◽  
R. S. F. CAMPBELL ◽  
...  

SUMMARYThe morphology and genetic characterization of a new species of trypanosome infecting koalas (Phascolarctos cinereus) are described. Morphological analysis of bloodstream forms and phylogenetic analysis at the 18S rDNA and gGAPDH loci demonstrated this trypanosome species to be genetically distinct and most similar to Trypanosoma bennetti, an avian trypanosome with a genetic distance of 0·9% at the 18S rDNA and 10·7% at the gGAPDH locus. The trypanosome was detected by 18S rDNA PCR in the blood samples of 26 out of 68 (38·2%) koalas studied. The aetiological role of trypanosomes in koala disease is currently poorly defined, although infection with these parasites has been associated with severe clinical signs in a number of koalas. Based on biological and genetic characterization data, this trypanosome species infecting koalas is proposed to be a new species Trypanosome irwini n. sp.


Crustaceana ◽  
2018 ◽  
Vol 91 (2) ◽  
pp. 169-183
Author(s):  
S. Hamaied ◽  
F. Charfi-Cheikhrouha ◽  
B. M. Lombardo

Armadillidium boukorninense n. sp., a new species collected in northeastern Tunisia, is described. This species can be easily recognised by the tegument structure, the morphology of the cephalon and the high differentiation of the male pereopod 7. Its geographical distribution is limited to the northeast of Tunisia, in the maquis and garrigues habitats of sub-humid and semi-arid areas. This new species is morphologically similar to A. decorum. However, the morphological comparison between these two species showed a divergence at the cephalon, hind margin of pereon-epimeron 1, pereopod VII and pleotelson. An allozyme analysis of ten enzymatic systems (ME, PHI, EST, MPI, ACPH, GOT, IDH, PEP, PGM, MDH) confirmed this morphological differentiation. Among the eighteen loci that were analysed, differentiation in six diagnostic (Mpi, Pgm, Me, Acph-2, Pep-3, Got-2) and two partially-diagnostic loci (Idh-1, Phi),were easily recognized. Furthermore, high values of Nei’s genetic distance (Nei, 1978) () and indicated a high genetic differentiation of these two species. When taking into account these two approaches, A. boukorninense n. sp. is morphologically and genetically different from A. decorum.


2014 ◽  
Vol 7 (1) ◽  
pp. 49 ◽  
Author(s):  
Elisa Tassano ◽  
Andrea Accogli ◽  
Serena Panigada ◽  
Patrizia Ronchetto ◽  
Cristina Cuoco ◽  
...  

Parasitology ◽  
2004 ◽  
Vol 130 (1) ◽  
pp. 31-40 ◽  
Author(s):  
D. J. MORRIS ◽  
R. S. TERRY ◽  
K. B. FERGUSON ◽  
J. E. SMITH ◽  
A. ADAMS

The development of a new species, Bacillidium vesiculoformis n. sp. (Microspora, Mrazekiidae), is described from the freshwater oligochaete Nais simplex (Oligochaeta, Naididae). Initial stages of parasite development consist of a monokaryotic merogony within a haemocyte of the intestinal blood sinus. The resulting hypertrophied haemocyte is attached to the chloragocytes of the sinus by fine cytoplasmic extensions with the sinus around the cell becoming greatly enlarged. The meronts within the haemocyte form diplokaryotic sporonts that undergo sporogenesis directly within the cytoplasm of the host cell. The infected cell becomes packed with spores and developmental stages, causing it dramatically to increase in size, eventually rupturing the oligochaete and cell. Sporogony appears to be disporoblastic. Released spores were observed to have an adhesive quality. Transmission studies conducted with mature spores failed to transmit the parasite horizontally although vertical transmission was observed. Phylogenetic analysis of the parasite demonstrated that B. vesiculoformis clustered with microsporidian parasites of bryozoa and two other microsporidians, Janacekia debaiseuxi and an unidentified Bacillidium sp.


Zootaxa ◽  
2013 ◽  
Vol 3630 (1) ◽  
pp. 155-164 ◽  
Author(s):  
NAOMI R. DELVENTHAL ◽  
RANDALL D. MOOI

Callogobius winterbottomi new species is described from the 33.8 mm SL holotype and two paratypes (32.2 mm SL and 22.9 mm SL) from the Comoros, Western Indian Ocean. It is distinguished from all other known Callogobius species by the following combination of characters: sensory pores absent, 23–26 scales in lateral series, and sensory papillae pre-opercular row not continuous with transverse opercular row. One additional specimen of Callogobius winterbottomi was located from South Africa. A new standardized naming system for Callogobius sensory papillae rows is presented for identification and clarification of character states among Callogobius species. The new species is tentatively placed among what we term the “sclateri group”, a clade including C. sclateri (Steindachner) and three other species that exhibit a modified female urogenital papilla with lateral distal flaps and elongate ctenii on the caudal peduncle scales. Callogobius tutuilae (Jordan & Seale) is removed from synonymy with C. sclateri because it has partially united pelvic fins (vs separate) and the preopercular sensory papillae row is continuous with the transverse opercular row (vs separate).


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