| primary structures of hypertrehalosaemic neuropeptides isolated from the corpora cardiaca of the cockroaches leucophaea maderae, gromphadorhina portentosa, blattella germanica and blatta orientalis and of the stick insect extatosoma tiaratum assigned by tandem fast atom bombardment mass spectrometry. | hypertrehalosaemic peptides were isolated by reversed-phase high-performance liquid chromatography from corpora cardiaca of four species of cockroaches (leucophaea maderae, gromphadorhina portentosa, blattella germanica, and blatta orientalis) and one stick insect species (extatosoma tiaratum), and their primary sequences were assigned by collision-induced decomposition tandem fast atom bombardment mass spectrometry (fabms/cid/ms). the members of the cockroach families blaberidae (l. maderae and ... | 1990 | 2340112 |
| catecholamines and related o-diphenols in cockroach hemolymph and cuticle during sclerotization and melanization: comparative studies on the order dictyoptera. | catecholamines and related o-diphenols extracted from the cuticle and hemolymph of adult cockroaches during sclerotization and pigmentation of the cuticle were analyzed by reverse phase hplc with electrochemical detection. at ecdysis, dopamine (da) o-conjugates predominated in the hemolymph of periplaneta americana, p. australasiae, p. fuliginosa, p. brunnea, and blatta orientalis (blattidae); blattella germanica (blattellidae); and gromphadorhina portentosa and blaberus craniifer (blaberidae). ... | 1990 | 2391402 |
| the hypertrehalosaemic peptides of cockroaches: a phylogenetic study. | hypertrehalosaemic peptides from the corpora cardiaca of 14 different species were compared with respect to phylogenetic relationships within the insect suborder blattaria (cockroaches). gland extracts from members of the family blattidae (periplaneta americana, p. brunnea, p. australasiae, p. fuliginosa, and blatta orientalis) contain two hypertrehalosaemic octapeptides with identical properties to the recently sequenced peptides m i and m ii from the american cockroach, whereas corpora cardiac ... | 1989 | 2806876 |
| cytoskeletal f-actin polymerization from cytosolic g-actin occurs in the phagocytosing immunocytes of arthropods (limulus polyphemus and gromphadorhina portentosa): does [camp]i play any role? | phagocytosis is a major defense reaction in arthropods and is accomplished by two blood cells (hemocytes), the granulocyte (grs) and plasmatocytes (pls), collectively called immunocytes. immunocytes (principally the grs) from two arthropods, limulus polyphemus (horseshoe crab) and gromphadorhina portentosa (madagascar hissing cockroach) effectively phagocytose fluorescein isothiocyanate (fitc)-conjugated fluoresbrite microspheres (fitc-fm) and chicken (gallus domesticus) erythrocytes within 1 hr ... | 1996 | 8858908 |
| habituation of hissing by madagascar hissing cockroaches (gromphadorhina portentosa): evidence of discrimination between humans? | anecdotal reports suggest that insects can be "tamed" with frequent human contact. in the present experiment, repeated handling of madagascar hissing cockroaches by the same person resulted in habituation of the hissing response in ten of 12 subjects. these subjects were then handled by a novel person in order to determine whether habituation might be specific to a particular human. four of ten "habituated" subjects immediately began to hiss in the presence of the novel handler, but again ceased ... | 2004 | 15519003 |
| allergenicity of the madagascar hissing cockroach. | the madagascar hissing cockroach (gromphadorhina portentosa) has become popular as a pet and as an educational tool in classrooms, zoos, and museums. | 2007 | 17378257 |
| the giant madagascar hissing-cockroach (gromphadorhina portentosa) as a source of antagonistic moulds: concerns arising from its use in a public setting. | cockroaches and their excreta have been linked to allergies and childhood asthma. the giant madagascar hissing-cockroach (gromphadorhina portentosa), heralded as an educational tool in classrooms, museums, zoos, is now available to the public as a children's pet raising health concerns. we provide a catalogue of potentially antagonistic moulds associated with this insect. specimens were obtained from laboratories, classrooms, pet stores and private homes. three different agar media were used to ... | 2008 | 18254744 |
| an fmlp receptor is involved in activation of phagocytosis by hemocytes from specific insect species. | in mammalian phagocytes, the bacterial formylated peptide fmlp functions both as a potent enhancer of phagocytosis and chemoattractant. fmlp has been reported to be chemotactic for hemocytes of two marine invertebrates, and of the insect manduca sexta (lepidoptera). whether fmlp is also able to activate phagocytosis has not been explored in hemocytes of any invertebrate. to determine the effect of fmlp on insect hemocyte phagocytosis, in vitro phagocytosis assays were performed with hemocytes fr ... | 2009 | 19166874 |
| synoptic revision of blabericola (apicomplexa: eugregarinida: blabericolidae) parasitizing blaberid cockroaches (dictyoptera: blaberidae), with comments on delineating gregarine species boundaries. | complete synoptic redescriptions, including complete morphometric data for all life cycle stages, species recognition characters, and differential comparisons are presented for the 4 gregarine species comprising blabericola . blabericola cubensis ( peregrine, 1970 ), blabericola haasi (geus, 1969), blabericola migrator ( clopton, 1995 ), and blabericola princisi ( peregrine, 1970 ) are redescribed from their type hosts, i.e., the discoid cockroach blaberus discoidalis , the lobster cockroach nau ... | 2012 | 22150235 |
| the complete mitochondrial genomes of four cockroaches (insecta: blattodea) and phylogenetic analyses within cockroaches. | three complete mitochondrial genomes of blaberidae (insecta: blattodea) (gromphadorhina portentosa, panchlora nivea, blaptica dubia) and one complete mt genome of blattidae (insecta: blattodea) (shelfordella lateralis) were sequenced to further understand the characteristics of cockroach mitogenomes and reconstruct the phylogenetic relationship of blattodea. the gene order and orientation of these four cockroach genomes were similar to known cockroach mt genomes, and contained 13 protein-coding ... | 2016 | 27045773 |
| neural responses from the wind-sensitive interneuron population in four cockroach species. | the wind-sensitive insect cercal sensory system is involved in important behaviors including predator detection and initiating terrestrial escape responses as well as flight maintenance. however, not all insects possessing a cercal system exhibit these behaviors. in cockroaches, wind evokes strong terrestrial escape responses in periplaneta americana and blattella germanica, but only weak escape responses in blaberus craniifer and no escape responses in gromphadorhina portentosa. both p. america ... | 2014 | 24879967 |
| plasma membrane specializations in resting, stimulated and phagocytosing arthropod (limulus polyphemus, gromphadorhina portentosa and blattella germanica) immunocytes: structural and functional analogies with those of vertebrate macrophages and neutrophils. | using indirect immunofluorescence and scanning electron microscope techniques, we have shown that the plasma membrane specializations, such as pseudopods, filopods, lamellipods, and zeiotic blebs occur in activated and/or phagocytosing arthropod (limulus polyphemus, gromphadorhina portentosa, and blattella germanica) immunocytes (hemocytes), as they do in challenged vertebrate neutrophils and macrophages. all four specializations may also be caused by some of the chemicals in the preparative med ... | 1997 | 18627823 |
| an investigation into the chemical composition of alternative invertebrate prey. | the aim of this study was to determine the chemical composition of eight invertebrate species and evaluate their suitability as alternative prey. the species selected were rusty red cockroaches (blatta lateralis), six-spotted cockroaches (eublaberus distanti), madagascar hissing cockroaches (gromphadorhina portentosa), fruit flies (drosophila melanogaster), false katydids (microcentrum rhombifolium), beetles of the mealworm (tenebrio molitor), and superworm beetles (zophobas morio), as well as w ... | 2013 | 21442652 |
| diagnostic imaging in terrestrial invertebrates: madagascar hissing cockroach (gromphadorhina portentosa), desert millipede (orthoporus sp.), emperor scorpion (pandinus imperator), chilean rosehair tarantula (grammostola spatulata), mexican fireleg tarantula (brachypelma boehmei), and mexican redknee tarantula (brachypelma smithi). | limited veterinary information is available for invertebrates. the purpose of this study was to improve baseline knowledge of invertebrate radiology and radiographic anatomy by evaluating diagnostic imaging modalities in six terrestrial invertebrate species. for each species, variably sized individuals were radiographed using multiple techniques to obtain optimal images, and radiographic technique charts were formulated using this data. to evaluate anatomy and compare gastrointestinal transit in ... | 2008 | 19360609 |