| trichodinid ectoparasites (ciliophora: peritrichida) of some river nile fish, egypt. | four species of trichodinid ectoparasites (ciliophora: peritrichida) were collected from the gills of the following river nile fish in egypt: hydrocynus forskalii, mormyrus kannume, schilbe mystus. these species are: trichodina heterodentata duncan, 1977, trichodina fahaka sp. n., trichodinella epizootica raabe, 1950, tripartiella dactylodentata sp. n. photomicrographs and morphometric data are presented for each species. | 2000 | 10882902 |
| reevaluation of the phylogenetic relationship between mobilid and sessilid peritrichs (ciliophora, oligohymenophorea) based on small subunit rrna genes sequences. | based on morphological characters, peritrich ciliates (class olygohymenophorea, subclass peritrichia) have been subdivided into the orders sessilida and mobilida. molecular phylogenetic studies on peritrichs have been restricted to members of the order sessilida. in order to shed more light into the evolutionary relationships within peritrichs, the complete small subunit rrna (ssu rrna) sequences of four mobilid species, trichodina nobilis, trichodina heterodentata, trichodina reticulata, and tr ... | 2006 | 16968459 |
| occurrence of trichodina heterodentata (ciliophora: trichodinidae) infesting tadpoles of rhinella pombali (anura: bufonidae) in the neotropical area. | data on trichodinid ciliophorans in brazil are scarce and generally do not use the modern silver-impregnation technique, which is essential to the taxonomy of the group. the present study reports not only on the first occurrence of trichodina heterodentata in brazil but also on the first record of this trichodinid infesting tadpoles of the species rhinella pombali. this study also constitutes a second report on t. heterodentata from tadpoles. in september 2007, tadpoles were collected from a str ... | 2009 | 19580885 |
| phylogenetic analyses of trichodinids (ciliophora, oligohymenophora) inferred from 18s rrna gene sequence data. | partial 18s rrna gene sequences of the three trichodinids, namely trichodina modesta lom, 1970, trichodina paraheterodentata tang and zhao 2012. and trichodinella epizootica (raabe 1950) šrámek-hušek, 1953, were acquired and used to construct phylogenetic trees. the results revealed that trichodinella epizootica clustered with trichodinella sp.; trichodina paraheterodentata tang and zhao 2012 was sister to the clade composed of trichodina heterodentata duncan, 1977 and trichodina nobilis chen, 1 ... | 2013 | 23196703 |
| a report on the incidence of trichodina heterodentata from fishes of jammu, j&k india. | the present study was aimed at screening for the presence of protozoan's among cyprinid fishes collected from various fish ponds and farms in jammu division of jammu and kashmir (j and k) state. out of 75 fishes collected from local water bodies of jammu division, only 35, (49.6 %) were infested with trichodina. trichodina infestations were studied in the period from november to february. in light infestation trichodina was usually present on gills, fins and skin of apparently healthy fish. clin ... | 2016 | 27413332 |
| trichodina heterodentata (ciliophora) infestation on prochilodus lineatus larvae: a host-parasite relationship study. | prochilodus lineatus is a freshwater fish species found in south america. it is common in aquaculture, but few studies regarding diseases of this fish have been performed. this study presents data of the occurrence of trichodina heterodentata duncan, 1977, as well as the pathological alterations detected by light and scanning electron microscopy (sem). twenty 20-day-old larvae were harvested from an earth pond and examined. larvae showed erratic swimming on the pond edges and some had a whitish ... | 2014 | 24476792 |
| first record of protozoan parasites in cyprinid fish, schizothorax niger heckel, 1838 from dal lake in kashmir himalayas with study on their pathogenesis. | trichodina heterodentata duncan, 1977 and ichthyophthirius multifiliis fouquet, 1876 obtained from gills during a parasitological survey conducted for the protozoan parasitic fauna of schizothorax niger a snow trout in dal lake, kashmir, india during the period october 2013 and march 2015. thirty out of 180 fish were found infected with protozoan parasites. during the study of their pathogenecity the most common deteriorating signs observed in gill tissue were necrosis, hypertrophy, hyperplasia ... | 2016 | 26802521 |
| first record of trichodina heterodentata (ciliophora: trichodinidae) from channel catfish, ictalurus punctatus cultivated in brazil. | this study characterises morphologically trichodina heterodentata duncan, 1977 from channel catfish, ictalurus punctatus (rafinesque, 1818) in the state of santa catarina, brazil. body and gill smears were air-dried at room temperature, impregnated with silver nitrate and/or stained with giemsa. ten characteristics were selected to compare the present material with other morphological characterisations of t. heterodentata. prevalence rate was 100%, mean intensity 89,333.70 (3,125 to 299,100 para ... | 2010 | 20730352 |