In comparison to the rotifer Brachionus rotundiformis, the euryhaline rotifer Proales similis has a much smaller body size (83 m in length and 40 m in width), and it may be applicable as live food for rearing marine fish larvae with a very small mouth size. A mass culture technique of P. similis was recently established, and it has already been confirmed that marine fish larvae could ingest P...

17 The SS-type rotifer Brachionus rotundiformis is a common initial food for rearing fish 18 larvae with small mouth. However, there are commercially important fish species whose mouth 19 sizes are too small to feed on SS-type rotifers. In 2004, we isolated a small (body length= 82.7 20 ±10.9 μm; body width 40.5±6.4 μm), flexible, and iloricate rotifer, Proales similis from an 21 estuary in Oki...

BACKGROUND Phlebotomus sergenti s.l. is considered the most likely vector of Leishmania tropica in Iran. Although two morphotypes- P. sergenti sergenti (A) and P. sergenti similis (B)-have been formally described, further morphological and a molecular analysis of mitochondrial cytochrome oxidase I (mtDNA-COI) gene revealed inconsistencies and suggests that the variation between the morphotypes ...

Numbers of nematodes recovered per culture varied greatly among five species cultured on carrot disks. Radopholus similis and Pratylenchus vulnus showed the highest population densities, with 23,400-fold and 16,600-fold increases, respectively, in 90 days. Final populations of P. thornei and Zygotytenchus guevarai were similar but lower than those of R. similis and P. vulnus. The population of ...

Radopholus similis and Pratylenchus coffeae were reared on callus and roots developed from citrus leaves. Callus formed best when leaf petioles were immersed in Astatula fine sand and the leaves were sprayed daily with 4 ppm 2,4-D solution and maintained at 25 or 30 C. The nematodes completed one generation in 20 days at 25 C. Highest populations of R. similis (1,127) occurred after 50 days, an...

background : phlebotomus sergenti s.l. is considered the most likely vector of leishmania tropica in iran. although two morphotypes- p. sergenti sergenti (a) and p. sergenti similis (b)-have been formally described, further morphologi­cal and a molecular analysis of mitochondrial cytochrome oxidase i (mtdna-coi) gene revealed inconsistencies and suggests that the variation between the morphotyp...

Fatty acid- and retinoid-binding protein (FAR) is a nematode-specific protein expressed in the nematode hypodermis. It is involved in nematode development, reproduction, and infection and can disrupt the plant defense reaction. In this study, we obtained the full-length sequence of the far gene from Radopholus similis (Rs-far-1), which is 828 bp long and includes a 558 bp ORF encoding 186 amino...

We used nucleotide sequences of the large subunit ribosomal genes (26S rDNA) to examine evolutionary relationships among species of the genus Pratylenchus (Order: Tylenchida, Family: Pratylenchidae), commonly known as root-lesion nematodes. Ten species of Pratylenchus were studied including, P. penetrans, P. crenatus, P. minyus, P. vulnus, P. thornei, P. musicola, P. coffeae, P. hexincisus, P. ...

The wing-shape morphology of local populations of the medically important phlebotomine sand flies, Phlebotomus sergenti, P. papatasi, P. tobbi, and P. similis, were examined in both sexes by using geometric morphometrics. There are three major mountain ranges that may serve as geographical barriers for species distribution in the study area and four main gaps were recognized among these barrier...

SEM observations of the external morphology of populations of Radopholus citrophilus and R. similis revealed several diagnostic differences. The cloaco-spicular orifice on males of R. citrophilus had three to seven genital papillae (anterior hypoptygmata), whereas males of R. similis were either smooth or had one or two shorter genital papillae (anterior hypoptygmata). Females of R. citrophilus...