| electrophoretic karyotype of intracellular yeast-like symbiotes in rice planthoppers and anobiid beetles. | chromosomal dna molecules of intracellular yeast-like symbiotes (yls) of three species of rice planthoppers and two species of anobiid beetles have been separated by pulsed-field gel electrophoresis. probable chromosome numbers of nilaparvata lugens, sogatella furcifera, and laodelphax striatellus, were 4, 4, and 5, respectively, and tentative genome sizes were 17.3, 17.6, and 20.1 mbp, respectively, based upon migration of individual chromosome-sized dna relative to the size standards of schizo ... | 1995 | 7722339 |
| phylogenetic position of yeastlike endosymbionts of anobiid beetles. | the anobiid beetles stegobium paniceum and lasioderma serricorne possess the intracellular yeastlike symbionts symbiotaphrina buchneri and symbiotaphrina kochii, respectively, in the mycetome between the foregut and midgut. the nucleotide sequences of the small-subunit rrna-encoding genes of the symbionts were determined for phylogenetic analysis. five group i introns were found in the small-subunit rrna-encoding genes of s. buchneri, but s. kochii lacked introns. the phylogenetic position of bo ... | 1996 | 8572692 |
| the effects of the presence of stored product pests on the microfauna of a flour community. | to determine the effect that the presence of some beetles have on the species of bacteria found in their flour. | 2005 | 15659205 |
| yeast-like symbiotes as a sterol source in anobiid beetles (coleoptera, anobiidae): possible metabolic pathways from fungal sterols to 7-dehydrocholesterol. | insects are unable to synthesize sterols and require exogenous sterol sources for their normal development and reproduction. a few exceptions are insects associated with symbiotic yeasts or fungi. we analyzed sterols by gc-ms in two anobiid beetles (lasioderma serricorne and stegobium paniceum), their intracellular yeast-like symbiotes (yls), and their diets in order to clarify the sterols synthesized by yls and the metabolic pathways of the sterols in the beetles. several c(27), c2(8), and c(29 ... | 2003 | 12655605 |
| [bread beetle (stegobium paniceum l.) as salmonella vector in fodder and fodder mixture (author's transl)]. | in 1965 salmonella eimsbuettel was isolated from two samples of fodder mixture for poultry and one sample of fodder mixture for pigs. in these samples of fodder mixtures there were also numerous specimen of bread beetles (stegobium paniceum l.). the bread beetles remained in these fodder mixtures during more than 9 years (till june 1974), and by them s. eimsbuettel was proved in one sample of fodder mixture for chickens as well. from the other sample of fodder mixture for chickens salmonella was ... | 1975 | 1239147 |
| repeated losses of ttagg telomere repeats in evolution of beetles (coleoptera). | we studied the occurrence of (ttagg)n telomere repeats in 12 species of beetles, representing main lineages of the coleoptera phylogenetic tree, by southern hybridization and fluorescence in situ hybridization (fish). in contrast to other insect orders, beetles were heterogeneous with respect to the occurrence of ttagg repeats. in addition, the presence or absence of (ttagg)n motif was irrespective of phylogenetic relationships. in the suborder polyphaga, six species displayed positive hybridiza ... | 2002 | 12403172 |
| insect pests and integrated pest management in museums, libraries and historic buildings. | insect pests are responsible for substantial damage to museum objects, historic books and in buildings like palaces or historic houses. different wood boring beetles (anobium punctatum, hylotrupes bajulus, lyctus sp. or introduced species), the biscuit beetle (stegobium paniceum), the cigarette beetle (lasioderma serricorne), different dermestides (attagenus sp., anthrenus sp., dermestes sp., trogoderma sp.), moths like the webbing clothes moth (tineola bisselliella), silverfish (lepisma sacchar ... | 2015 | 26463205 |
| lariophagus distinguendus (hymenoptera: pteromalidae) (förster)-past, present, and future: the history of a biological control method using l. distinguendus against different storage pests. | legal requirements and consumer demands for residue-free products pose a big challenge for pest control in grain stores. one possible alternative to chemical insecticides is biological pest control with the pteromalid wasp lariophagus distinguendus against the weevils sitophilus granarius, s. oryzae (coleoptera: dryophtoridae), and many other storage pest beetles. the use of this wasp as a biocontrol agent was already suggested in 1919 by prof. dr. hase [1]. despite many studies on host-finding ... | 2016 | 27490572 |
| lethal doses of ozone for control of all stages of internal and external feeders in stored products. | gaseous ozone (o(3)) has potential for control of insects in stored grain. previous studies have focused on freely exposed insects. immatures of internal pests (e.g. sitophilus spp. and most stages of rhyzopertha dominica f.) are protected within kernels and probably require higher doses and/or longer treatment times for full control. a laboratory study determined the doses of ozone necessary for full control of freely exposed and internal stages of eleven stored-product pest species. test insec ... | 2012 | 22566141 |
| acoustic indicators for targeted detection of stored product and urban insect pests by inexpensive infrared, acoustic, and vibrational detection of movement. | crawling and scraping activity of three stored-product pests, sitophilus oryzae (l.) (coleoptera: curculionidae), tribolium castaneum (herbst) (coleoptera: tenebrionidae), and stegobium paniceum (l.) (coleoptera: anobiidae), and two urban pests, blattella germanica (l.) (blattodea: blattellidae) and cimex lectularius l. (hemiptera: cimicidae), were monitored individually by infrared sensors, microphones, and a piezoelectric sensor in a small arena to evaluate effects of insect locomotory behavio ... | 2010 | 21061963 |