| ecology of triatoma rubrovaria (hemiptera, triatominae) in wild and peridomestic environments of uruguay. | this paper describes population structure, spatial distribution and habitat selection of wild and peridomestic populations of triatoma rubrovaria (blanchard, 1843). field studies were carried out at las piedras and la bolsa in the northern department of artigas, uruguay. a semicircular sampling area, divided in seven or eight triangular sectors was sequentially examined from october 1990 to november 1991. at las piedras (typical wild habitat) 1063 t. rubrovaria bugs were collected from 84% of th ... | 1995 | 8544735 |
| an exploration on greenhouse gas and ammonia production by insect species suitable for animal or human consumption. | greenhouse gas (ghg) production, as a cause of climate change, is considered as one of the biggest problems society is currently facing. the livestock sector is one of the large contributors of anthropogenic ghg emissions. also, large amounts of ammonia (nh(3)), leading to soil nitrification and acidification, are produced by livestock. therefore other sources of animal protein, like edible insects, are currently being considered. | 2010 | 21206900 |
| cuticle fatty acid composition and differential susceptibility of three species of cockroaches to the entomopathogenic fungi metarhizium anisopliae (ascomycota, hypocreales). | differences in free fatty acids (ffas) chemical composition of insects may be responsible for susceptibility or resistance to fungal infection. determination of ffas found in cuticular lipids can effectively contribute to the knowledge concerning insect defense mechanisms. in this study, we have evaluated the susceptibility of three species of cockroaches to the entomopathogenic fungi metarhizium anisopliae (metschnikoff) sorokin by topical application. mortality due to m. anisopliae was highly ... | 2015 | 26470187 |
| extraction and characterisation of protein fractions from five insect species. | tenebrio molitor, zophobas morio, alphitobius diaperinus, acheta domesticus and blaptica dubia were evaluated for their potential as a future protein source. crude protein content ranged from 19% to 22% (dumas analysis). essential amino acid levels in all insect species were comparable with soybean proteins, but lower than for casein. after aqueous extraction, next to a fat fraction, a supernatant, pellet, and residue were obtained, containing 17-23%, 33-39%, 31-47% of total protein, respectivel ... | 2013 | 23993491 |
| hypertrehalosaemic neuropeptides decrease levels of the glycolytic signal fructose 2,6-bisphosphate in cockroach fat body | in cockroach fat body, trehalogenesis and glycolysis compete for glucose phosphates as common substrates. during trehalogenesis, glycolysis is inhibited, although the mechanism responsible for this is not known. incubation of the isolated fat body from the argentine cockroach blaptica dubia with an extract of the corpora cardiaca containing as little as 0.005 gland equivalents ml-1 of incubation medium increased the release of trehalose (anthrone-positive material) from the tissue by more than 1 ... | 1998 | 9600875 |
| temperature-dependent development and thermal sensitivity of blaptica dubia (blattodea: blaberidae). | | 2016 | 28165123 |
| blaptica dubia as sentinels for exposure to chemical warfare agents - a pilot study. | the increased interest of terrorist groups in toxic chemicals and chemical warfare agents presents a continuing threat to our societies. early warning and detection is a key component for effective countermeasures against such deadly agents. presently available and near term solutions have a number of major drawbacks, e.g. lack of automated, remote warning and detection of primarily low volatile chemical warfare agents. an alternative approach is the use of animals as sentinels for exposure to t ... | 2016 | 27639501 |
| 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 |
| the complete mitochondrial genomes of opisthoplatia orientalis and blaptica dubia (blattodea: blaberidae). | the first complete mitochondrial genome in blaberidae has been reported in this research. opisthoplatia orientalis (blaberidae, epilamprinae) known as ground cockroach with golden edge is distributed in east and south asia and widely used for thrombolytic therapy in china. meanwhile, blaptica dubia (blaberidae, blaberinae) has been adopted as feeder insect for various kinds of pets all over the world. in the present study, we investigated the complete mitochondrial genome of o. orientalis and b. ... | 2017 | 26709872 |
| [severianoia blapticola sp. n. (oxyurida: thelastomatidae): a new nematode species from blaberid cockroaches]. | a new nematode species of the genus severianoia (schwenk, 1926) travassos, 1929, s. blapticola sp. n., is described from the hind gut of cockroach blaptica dubia (serville, 1839) from laboratory culture. the main morphological feature of s. blapticola sp. n. is the presence of columnar cuticular structures of different height on the ventral side of male posterior end. in the gut of b. dubia these nematodes coexist with another thelastomatid genus, cranifera kloss, 1960 [c. cranifera (chitwood, 1 ... | 2009 | 19807041 |
| ontogeny of hemocyanin in the ovoviviparous cockroach blaptica dubia suggests an embryo-specific role in oxygen supply. | for a long time it had been assumed that specific oxygen transport proteins are absent in insects. only recently it has been demonstrated that hemocyanins occur in the hemolymph of many ametabolous and hemimetabolous insect taxa, but not in the eumetabola (hemiptera+holometabola). therefore, the loss of respiratory hemocyanin in insects is not correlated with the evolution of an efficient tracheal system. the specific contribution of hemocyanin to oxygen supply in insects, however, has remained ... | 2010 | 19379755 |
| antagonistic effects of hypertrehalosemic neuropeptide on the activities of 6-phosphofructo-1-kinase and fructose-1,6-bisphosphatase in cockroach fat body. | hypertrehalosemic neuropeptides from the corpora cardiaca such as the decapeptide bld hrth bring about a profound switch in the metabolic activity of cockroach fat body during which production of the blood sugar trehalose is stimulated while the catabolism of carbohydrate (glycolysis) is inhibited. the mechanisms of the metabolic switch are not fully understood. incubation of isolated fat body from the cockroach blaptica dubia with 10(-8) m bld hrth, for 10-60 min, stimulated glycogen breakdown ... | 2001 | 11222947 |