| a molecular taxonomy for cricket paralysis virus including two new isolates from australian populations of drosophila (diptera: drosophilidae). | two new isolates of cricket paralysis virus, tar and sim, are described that were originally isolated from laboratory colonies of drosophila melanogaster and drosophila simulans respectively. using a combination of biological, serological and molecular characters it was possible to distinguish the sim isolate from all other isolates and it is thus described as a new strain; crpvsim. the tar isolate however, was indistinguishable from the crpv reference isolate crpvvic/gm/d2(2)/gm/d2(2) (teleogry ... | 1996 | 8856030 |
| distribution of sulfakinin-like peptides in the central and sympathetic nervous system of the american cockroach, periplaneta americana (l.) and the field cricket, teleogryllus commodus (walker). | we describe the distribution of sulfakinin-like neuropeptides in the central and sympathetic nervous system of the american cockroach periplaneta americana (l.) (blattodea) and the field cricket teleogryllus commodus (walker) (othoptera), using an antisulfakinin primary antibody and confocal laser scanning microscopy. we conclude that, in the cockroach, sulfakinin-like material is produced in ten pairs of anterior cells in the pars intercerebralis, as well as two pairs of medial and one major pa ... | 1997 | 9225486 |
| cellular localization of bursicon using antisera against partial peptide sequences of this insect cuticle-sclerotizing neurohormone. | bursicon is the final neurohormone released at the end of the molting cycle. it triggers the sclerotization (tanning) of the insect cuticle. until now, its existence has been verified only by bioassays. in an attempt to identify this important neurohormone, bursicon was purified from homogenates of 2,850 nerve cords of the cockroach periplaneta americana by using high performance liquid chromatography technology and two-dimensional gel electrophoresis. bursicon bioactivity was found in four dist ... | 2002 | 12271490 |
| proteinase inhibitors from nicotiana alata enhance plant resistance to insect pests. | the ornamental tobacco (nicotiana alata) produces one 6-kda chymotrypsin inhibitor and four 6-kda trypsin inhibitors from a single 40.3-kda precursor protein. three different approaches have been used to assess the potential of these proteinase inhibitors (pis) in insect control. the first was an in-vitro approach in which all five inhibitors, the single chymotrypsin inhibitor or three of the four trypsin inhibitors were tested for their ability to inhibit gut protease activity in insects from f ... | 1997 | 12770495 |
| selective enrichment and sequencing of whole mitochondrial genomes in the presence of nuclear encoded mitochondrial pseudogenes (numts). | numts are an integral component of many eukaryote genomes offering a snapshot of the evolutionary process that led from the incorporation of an α-proteobacterium into a larger eukaryotic cell some 1.8 billion years ago. although numt sequence can be harnessed as molecular marker, these sequences often remain unidentified and are mistaken for genuine mtdna leading to erroneous interpretation of mtdna data sets. it is therefore indispensable that during the process of amplifying and sequencing mit ... | 2012 | 22606342 |
| epichloë uncinata infection and loline content protect festulolium grasses from crickets (orthoptera: gryllidae). | experiments with artificial diets demonstrated that black field cricket (teleogryllus commodus (walker)) and lepidogryllus sp. were highly responsive to presence of lolines in their diet-quantities of diet consumed declined exponentially with increasing loline concentration. amount consumed by black field cricket and lepidogryllus sp. on diet containing 5,600 µg/g lolines was only 8 and 2% relative to those on loline-free diet, respectively. additional experiments with festulolium seeds demonstr ... | 2015 | 26470191 |