| resistance and some enzyme activities in liposcelis bostrychophila badonnel (psocoptera: liposcelididae) in relation to carbon dioxide enriched atmospheres. | two populations (s-1 and s-2) of the psocid, liposcelis bostrychophila badonnel were exposed to carbon dioxide enriched atmospheres. carbon dioxide resistance developed at steady rates in these two populations during this study period. selection with 35 and 55% co(2) resulted in resistance development as expressed by lt(50). resistance increased steadily under continuous selection to 4.6- and 5.3-fold by generation f(30) for s-1 and s-2, respectively. throughout the selection process, the slopes ... | 2000 | 10758268 |
| an improved method for mass rearing of three liposcelid psocids (psocoptera: liposcelidae) infesting stored commodities. | an improved method of mass culturing liposcelid psocids is described that enables the production of large numbers of insects with minimal equipment and handling. the key factor was the provision of refuge by the addition of black chart papers (five pieces, each 10x2cm) inside the culture jars. a culture medium comprising whole wheat (14% moisture content), kibbled wheat, wholemeal wheat flour and brewer's yeast in the proportion of 10:10:10:0.1 (v/v) was tested on liposcelis bostrychophila, l. e ... | 2001 | 11463394 |
| toxic effects of six plant oils alone and in combination with controlled atmosphere on liposcelis bostrychophila (psocoptera: liposcelididae). | six plant essential oils alone as repellent and fumigant, and in combination with the controlled atmosphere against liposcelis bostrychophila badonnel were assessed in the laboratory. these essential oils were extracted from the leaves of six source plants: citrus tangerina tanaka, citrus aurantium l., citrus bergamia risso et poiteau, pinus sylvestris l., cupressus funebris end]., and eucalyptus citriodora hook. the repellency test indicated that l. bostrychophila adults were repelled by filter ... | 2001 | 11681697 |
| a proposed role for the cuticular fatty amides of liposcelis bostrychophila (psocoptera: liposcelidae) in preventing adhesion of entomopathogenic fungi with dry-conidia. | maximum challenge exposure of liposcelis bostrychophila to beauveria bassiana, paecilomyces fumosoroseus, aspergillus parasiticus or metarhizium anisopliae resulted in no more than 16% mortality. we investigated several of l. bostrychophila's cuticular lipids for possible contributions to its tolerance for entomopathogenic fungi. saturated c14 and c16 fatty acids did not reduce the germination rates of b. bassiana or m. anisopliae conidia. saturated c6 to c12 fatty acids that have not been ident ... | 2004 | 15518350 |
| nail infestation by liposcelis bostrychophila badonnel. | we report an unusual case of nail infestation by liposcelis bostrychophila badonnel in a 70-year-old woman with onychomycosis. liposcelis spp., also known as booklouse, are tiny insects that feed on fungi, lichen and decaying materials. in this case, the loosened hyperkeratotic nail provided a favourable environment for these insects. this is the second report of human infestation by liposcelis spp. | 2004 | 15550137 |
| rickettsia as obligate and mycetomic bacteria. | rickettsiae are well known as intracellular pathogens of animals, humans, and plants and facultative and unorganized symbionts of invertebrates. no close relative of mitochondria has yet been associated with nutritional or developmental dependency of its host cell or organism. we have found a mycetomic rickettsia that is a strict obligatory symbiont of the parthenogenetic booklouse liposcelis bostrychophila (psocoptera). these rickettsiae show an evolutionary transition from a solitary to a prim ... | 2006 | 17012243 |
| effects of removal of cardinium infection on fitness of the stored-product pest liposcelis bostrychophila (psocoptera: liposcelididae). | endosymbiotic bacteria that potentially influence reproduction and other fitness-related traits of their hosts are widespread in arthropods, and their appeal to researchers' interest is still increasing. in this study, the effects of removal of cardinium infection on development, survival, and reproduction of liposcelis bostrychophila badonnel (psocoptera: liposcelididae) were investigated in the laboratory. the cardinium-free strain was obtained by the removal of cardinium infection by using 1% ... | 2008 | 18950056 |
| molecular characterization of two nicotinic acetylcholine receptor subunits from liposcelis bostrychophila badonnel (psocoptera: liposcelididae). | two nicotinic acetylcholine receptor (nachr) subunit genes, lbalpha1 and lbalpha8, were isolated and characterized from psocid, liposcelis bostrychophila badonnel, using the rapid amplification of cdna ends (race) technique. they are the first two nachr family members isolated from the insect order of psocoptera. the full-length cdnas of lbalpha1 (genbank accession number: eu871527) and lbalpha8 (eu871526) consist of 2,025 and 1,763 nucleotides, respectively, and an open reading frame of 1,644 a ... | 2009 | 19533628 |
| the effects of insect extracts and some insect-derived compounds on the settling behavior of liposcelis bostrychophila. | extracts of whole booklice (liposcelis bostrychophila)-sequentially extracted in hexane and aqueous 80% methanol (80%meoh)-repel conspecifics. a methanol-soluble fraction (mfr) of the 80% methanol extract was more repellent than either its corresponding water fraction (wfr) or the hexane extract. the repellent effect of the mfr was repeatable across extracts prepared on different occasions over a 1 month period. gas chromatography, mass-spectrometry (gc-ms) analyses showed that saturated (c(16); ... | 2009 | 19774413 |
| rickettsia felis infection in a common household insect pest, liposcelis bostrychophila (psocoptera: liposcelidae). | many species of rickettsia are well-known mammalian pathogens transmitted by blood-feeding arthropods. however, molecular surveys are continually uncovering novel rickettsia species, often in unexpected hosts, including many arthropods that do not feed on blood. this study reports a systematic molecular characterization of a rickettsia infecting the psocid liposcelis bostrychophila (psocoptera: liposcelidae), a common and cosmopolitan household pest. surprisingly, the psocid rickettsia is shown ... | 2010 | 20139311 |
| isolation of a rickettsial pathogen from a non-hematophagous arthropod. | rickettsial diversity is intriguing in that some species are transmissible to vertebrates, while others appear exclusive to invertebrate hosts. of particular interest is rickettsia felis, identifiable in both stored product insect pests and hematophagous disease vectors. to understand rickettsial survival tactics in, and probable movement between, both insect systems will explicate the determinants of rickettsial pathogenicity. towards this objective, a population of liposcelis bostrychophila, c ... | 2011 | 21283549 |
| susceptibility of stored-product psocids to aerosol insecticides. | the efficacies of commercial methoprene and esfenvalerate aerosols for control of stored-product psocid pests were evaluated in simulated field studies. the efficacies of methoprene, esfenvalerate ec, the carrier isopar-m™, and a combination of methoprene and esfenvalerate aerosols for control of liposcelis decolor (pearman) (psocoptera: liposcelididae) and liposcelis entomophila (enderlein) nymphs were assessed, and the effects of direct and indirect exposure of liposcelis bostrychophila badonn ... | 2012 | 23463916 |
| differential rickettsial transcription in bloodfeeding and non-bloodfeeding arthropod hosts. | crucial factors influencing the epidemiology of rickettsia felis rickettsiosis include pathogenesis and transmission. detection of r. felis dna in a number of arthropod species has been reported, with characterized isolates, r. felis strain lsu and strain lsu-lb, generated from the cat flea, ctenocephalides felis, and the non-hematophagous booklouse, liposcelis bostrychophila, respectively. while it is realized that strain influence on host biology varies, the rickettsial response to these disti ... | 2016 | 27662479 |
| genomic diversification in strains of rickettsia felis isolated from different arthropods. | rickettsia felis (alphaproteobacteria: rickettsiales) is the causative agent of an emerging flea-borne rickettsiosis with worldwide occurrence. originally described from the cat flea, ctenocephalides felis, recent reports have identified r. felis from other flea species, as well as other insects and ticks. this diverse host range for r. felis may indicate an underlying genetic variability associated with host-specific strains. accordingly, to determine a potential genetic basis for host speciali ... | 2014 | 25477419 |
| mining genes involved in insecticide resistance of liposcelis bostrychophila badonnel by transcriptome and expression profile analysis. | recent studies indicate that infestations of psocids pose a new risk for global food security. among the psocids species, liposcelis bostrychophila badonnel has gained recognition in importance because of its parthenogenic reproduction, rapid adaptation, and increased worldwide distribution. to date, the molecular data available for l. bostrychophila is largely limited to genes identified through homology. also, no transcriptome data relevant to psocids infection is available. | 2013 | 24278202 |
| the effect of the insecticide dichlorvos on esterase activity extracted from the psocids, liposcelis bostrychophila and l. entomophila. | the inhibition kinetics of dichlorvos on carboxylesterase and acetylcholinesterase (ache) activity extracted from liposcelis bostrychophila and l. entomophila (psocoptera: liposcelididae) were compared. the results showed that l. entomophila had significantly greater specific activity of carboxylesterase than l. bostrychophila (0.045 versus 0.012 micromoles/mg/min). moreover, the carboxylexterase of l. entomophila showed higher affinity (i.e. lower km value) to the substrate 1-naphthyl acetate t ... | 2004 | 15861238 |
| evaluation of potential attractants for liposcelis bostrychophila (psocoptera: liposcelididae). | the psocid, liposcelis bostrychophila badonnel (psocoptera: liposcelididae), can cause significant damage to stored commodities, and its pest status in the united states has been increasing over the last decade. because l. bostrychophila is difficult to control with conventional methods, it is critical to explore alternative approaches such as the use of attractants that can be incorporated into integrated pest management programs for monitoring psocids. the orientation response of several l. bo ... | 2014 | 24772572 |
| effect of rickettsia felis strain variation on infection, transmission, and fitness in the cat flea (siphonaptera: pulicidae). | rickettsia felis is a human pathogen transmitted by the cat flea, ctenocephalides felis (bouché) (str. lsu), as well as an obligate symbiont of the parthenogenic booklouse liposcelis bostrychophila (badonnel) (str. lsu-lb). the influence of genetic variability in these two strains of r. felis on host specialization and fitness and possible resulting differences on infection and transmission kinetics in c. felis is unknown. utilizing an artificial host system, cat fleas were exposed to a r. felis ... | 2017 | 28399259 |
| evaluation of repellency of some chinese medicinal herbs essential oils against liposcelis bostrychophila (psocoptera: liposcelidae) and tribolium castaneum (coleoptera: tenebrionidae). | the screening for repellency against the booklouse, liposcelis bostrychophila (badonnel), and the red flour beetle, tribolium castaneum (herbst), from 14 chinese medicinal herbs showed that the essential oils of curcuma longa l., epimedium pubescens maximouwicz, lindera aggregate (sims) kostermans, nardostachys chinensis battandier, schizonepeta tenuifolia briquet, zanthoxylum schinifolium sieber et zuccarini, and z. officinale roscoe exhibited strong repellency against l. bostrychophila and t. ... | 2013 | 23448068 |
| identification of insecticidal constituents of the essential oil of curcuma wenyujin rhizomes active against liposcelis bostrychophila badonnel. | the aim of this research was to determine the chemical composition and insecticidal activity of the essential oil of curcuma wenyujin y.h. chen et c. ling rhizomes against the booklouse liposcelis bostrychophila badonnel and to isolate any insecticidal constituents from the essential oil. the essential oil of c. wenyujin rhizomes was obtained by hydrodistillation and analyzed by gc-ms. a total of 43 components of the essential oil were identified and the principal compounds in the essential oil ... | 2012 | 23085655 |
| efficacy of a combination of beta-cyfluthrin and imidacloprid and beta-cyfluthrin alone for control of stored-product insects on concrete. | the insecticidal effect of temprid, a formulation that contains beta-cyfluthrin and imidacloprid, was tested on concrete for control of seven stored-product insect species: the rusty grain beetle, cryptolestes ferrugineus (stephens); the sawtoothed grain beetle, oryzaephilus surinamensis (l.); the red flour beetle, tribolium castaneum (herbst); the confused flour beetle, t. confusum jacquelin du val; the hide beetle, dermestes maculatus (degeer); and the psocids liposcelis bostrychophila badonne ... | 2013 | 23786102 |
| insecticidal effect of chlorantraniliprole against major stored-product insect pests in different grain commodities under laboratory tests. | chlorantraniliprole belongs to the chemical group of anthranilic diamides. it has selectivity to beneficial arthropods and low mammalian toxicity. laboratory bioassays were conducted to assess chlorantraniliprole as a potential grain protectant against ephestia kuehniella zeller larvae, liposcelis bostrychophila badonnel adults, rhyzopertha dominica (f.) adults, sitophilus oryzae (l.) adults and tribolium confusum jacquelin du val adults and larvae. factors such as dose (0.01, 0.1, 1 and 10 mg c ... | 2013 | 23554236 |
| mitochondrial genomes of two barklice, psococerastis albimaculata and longivalvus hyalospilus (psocoptera: psocomorpha): contrasting rates in mitochondrial gene rearrangement between major lineages of psocodea. | the superorder psocodea has ∼10,000 described species in two orders: psocoptera (barklice and booklice) and phthiraptera (parasitic lice). one booklouse, liposcelis bostrychophila and six species of parasitic lice have been sequenced for complete mitochondrial (mt) genomes; these seven species have the most rearranged mt genomes seen in insects. the mt genome of a barklouse, lepidopsocid sp., has also been sequenced and is much less rearranged than those of the booklouse and the parasitic lice. ... | 2013 | 23630609 |