| [a parasitological study of cockroaches (blattidae)]. | all kinds of arthropoda can find a suitable environment to grow and spread in this country because of its mild and subtropical climate. arthropods are harmful to men, animals and plants in many ways. the most important role the arthropods play is in carrying germs and parasites. cockroaches are widely spread in turkey, they transmit bacteria, viruses, protozoa and helminths mechanically and biologically. because of their close contact with human beings, these insects encouraged us to make parasi ... | 1976 | 933890 |
| structure of the pinworm (oxyurida: nematoda) guild in the hindgut of the american cockroach, periplaneta americana. | the pinworm (oxyurida: nematoda) guild in a laboratory colony of periplaneta americana was investigated to answer the following questions. (1) is guild structure stable with time? (2) is there evidence of interaction among the species? (3) is there evidence for niche diversification with respect to spatial distribution or developmental stage of host? four species were found: thelastoma periplaneticola, thelastoma bulhoesi, hammerschmidtiella diesingi and leidynema appendiculatum; females of the ... | 1992 | 1641249 |
| freeze-substitution techniques for preparing nematodes for scanning electron microscopy. | the effect of different substitution times, temperatures and the incorporation of fixatives on the preservation of three species of nematode for scanning electron microscopy by freeze substitution with methanol, followed by critical point drying, is investigated. hammerschmidtiella diesingi adults and trichostrongylus colubriformis infective juveniles were successfully preserved using methanol at 253 k as the substitution medium. preservation deteriorated with long substitution times, suggesting ... | 1991 | 1795382 |
| observations on the effect of the neuro-endocrine system of blatto orientalis l. on the midgut protease activity of the adult female and the level of infestation with the nematode hammerschmidtiella diesingi (hammerschmidt, 1838). | | 1968 | 5682904 |
| niche overlap among three species of pinworm parasitic in the hindgut of the american cockroach, periplaneta americana. | individual american cockroaches, periplaneta americana, often harbor 3 species of pinworm (oxyurida: nematoda) thelastoma bulhoesi, leidynema appendiculatum, and hammerschmidtiella diesingi, simultaneously. we looked for evidence of trophic niche segregation based on differences in size preference among the 3 species. fluorescent beads of 1, 3, 6, and 10 microm diameter were mixed in agar and fed to individual hosts. adult female worms of each species were removed from hosts, and the number of e ... | 1998 | 9576494 |
| use of random amplified polymorphic dna (rapd) for generating specific dna probes for oxyuroid species (nematoda). | random amplified dna markers (rapd; williams et al., 1990) were used to obtained specific rapd fragments characterising different species of oxyuroids. we tested six species of worms parasitizing vertebrates or invertebrates: passalurus ambiguus rudolphi, 1819, parasite of leporids; syphacia obvelata (rudolphi, 1802) seurat, 1916, a parasite of rodents; blatticola blattae (graeffe, 1860) chitwood, 1932 parasite of the cockroach blattella germanica; hammerschmidtiella diesingi (hammerschmidt, 183 ... | 1998 | 9754296 |
| on the morphology of the male, female and fourth-stage larva (female) of hammerschmidtiella diesingi (hammerschmidt), a nematode parasitic in cockroaches. | | 1958 | 13600867 |
| the effect of changes in the osmotic pressure upon hammerschmidtiella diesingi (hammerschmidt, 1838) with reference to the survival of the nematode during moulting of the cockroach. | | 1960 | 14415177 |
| first record of hammerschmidtiella diesingi (hammerschmidt, 1838) (oxyuridomorpha: thelastomatidae) parasite of periplaneta americana (linnaeus, 1758) (blattodea: blattidae) in japan, morphological and molecular characterization. | nematodes, belonging to the family thelastomatidae, are parasites of saprophytic terrestrial arthropods, mainly cockroaches. american cockroach periplaneta americana (linnaeus, 1758) has high environmental adaptability, and has been spread worldwide by human activity. there are several reports of thelastomatid parasitic nematodes of p americana in the world. here, the thelastomatid nematode hammerschmidtiella diesingi (hammerschmidt, 1838) (oxyuridomorpha: thelastomatidae), isolated from p ameri ... | 2016 | 27787207 |
| composition of the cockroach gut microbiome in the presence of parasitic nematodes. | cockroaches are parasitized by thelastomatid nematodes, which live in an obligate manner in their hindgut and interact with the resident microbial community. in the present study, a composition analysis was performed on the gut microbiome of periplaneta fuliginosa and p. americana to investigate natural and artificial infection by thelastomatid nematodes. nine libraries of the 16s rrna gene v3-v4 region were prepared for pyrosequencing. we examined the complete gut microbiome (fore-, mid-, and h ... | 2016 | 27524304 |
| distribution of thelastomatoid nematodes (nematoda: oxyurida) in endemic and introduced cockroaches on the galápagos island archipelago, ecuador. | the thelastomatoid pinworm fauna (nematoda: oxyurida: thelastomatoidea) was surveyed in 3 endemic species and 6 introduced species of cockroach hosts (insecta: blattaria) in the galápagos islands, ecuador. a total of 658 host specimens were examined from preserved collections that had been collected between 1966 and 2003 from 7 islands in the archipelago. eight species of pinworms were identified from these cockroach hosts, including the dominant species cephalobellus ovumglutinosus and a severi ... | 2015 | 25962095 |
| morphological and molecular characterisation of the entomoparasitic nematode hammerschmidtiella diesingi (nematoda, oxyurida, thelastomatidae). | a population of hammerschmidtiella diesingi was detected in specimens of periplaneta americana collected in córdoba city (argentina) was studied. nematodes were characterized based on morphological, morphometric and genetic (d2-d3 expansion segment) analyses. new data are provided, especially on particular morphological characters that were a matter of controversy in previous studies. h. diesingi is reported in argentina for the first time. | 2012 | 22875679 |