Publications
| Title | Abstract | Year Filter | PMID(sorted descending) Filter |
|---|
| neuropeptides and related nucleic acid sequences detected in peneid shrimps by immunohistochemistry and molecular hybridizations. | the neurosecretory cells in the eyestalks of penaeus indicus and p. vannamei were studied by immunocytochemistry using polyclonal antisera raised against purified homarus americanus neuropeptides. cross-reactions between two h. americanus anti-crustacean hyperglycemic hormone antisera and penaeus neurosecretory material were observed. the specific anti-vitellogenesis inhibiting hormone antiserum only showed an immunological reaction in the nervous tract and the sinus gland of penaeus, suggesting ... | 1994 | 8072696 |
| effect of metacestodes of hymenolepis diminuta on storage and circulating carbohydrates in the intermediate host, tenebrio molitor. | the metamorphosis of oncospheres of the rat tapeworm, hymenolepis diminuta, to mature metacestodes induces several pathophysiological effects in the intermediate host, tenebrio molitor (coleoptera). previous investigations have failed to elucidate the mechanism responsible for changes in the host reproductive physiology and behaviour. this work forms part of an assessment of the degree to which nutrient resource management may be involved in these interactions. we report that developing metacest ... | 1994 | 8008461 |
| insect acetyl-coa carboxylase: activity during the larval, pupal and adult stages of insect development. | 1. the activity of the lipogenic enzyme, acetyl-coa carboxylase, was investigated in four insect species; bombyx mori (lepidoptera), tenebrio molitor (coleoptera), glossina morsitans and sarcophaga nodosa (diptera). 2. acetyl-coa carboxylase activity in larval, pupal and adult forms was compared with the saponifiable lipid mass at each stage of the life-cycle, and found to follow similar patterns except for tenebrio molitor. 3. the results are examined in relation to known metabolic requirements ... | 1993 | 7905374 |
| purification and molecular cloning of cdna for an inducible antibacterial protein from larvae of the coleopteran, tenebrio molitor. | antibacterial activity was induced in the hemolymph of larvae of the coleopteran tenebrio molitor by injection of escherichia coli. an antibacterial protein, named tenecin 1, was purified to homogeneity from the larval hemolymph and characterized. a cdna clone for tenecin 1 was isolated and its complete sequence was determined. this protein was found to inhibit the growth of gram-positive bacteria and to consist of 43-amino acid residues including six cysteine residues. the disulfide structure o ... | 1994 | 7798186 |
| microsomal juvenile hormone binding proteins in the follicle cells of tenebrio molitor. | the microsomal fraction of tenebrio molitor follicle cells has been found to contain both high and low affinity binding sites for juvenile hormone (jh) iii. using scatchard analysis, the equilibrium dissociation constants, kd, were calculated as 1.0 x 10(-8) and 4.3 x 10(-7) m respectively. kinetic data support a rapid binding of the hormone to the site(s), with rate constants of ka = 3.77 x 10(8) m-1 min-1 and kd = 0.0075 min-1. affinity of the binding site(s) for jh iii was higher than for eit ... | 1995 | 7787845 |
| phosphate metabolites of tenebrio molitor (coleoptera: tenebrionidae) infected with metacestodes of hymenolepis diminuta. | in vivo phosphorus-31 nuclear magnetic resonance (31p nmr) spectra and those of extracts of tenebrio molitor l. infected with metacestodes of hymenolepis diminuta r. showed modifications in the amounts of phosphorous-containing metabolites when compared with those of uninfected beetles. infected females were more affected than infected males, having significantly more glucose-6-phosphate (glu-6-p), glycerol-3-phosphate (gly-3-p), and phosphorylethanolamine (pe), but less inorganic orthophosphate ... | 1995 | 7616510 |
| hymenolepis diminuta-induced fecundity reduction may be caused by changes in hormone binding to tenebrio molitor ovaries. | aspects of vitellogenesis, known to be controlled by juvenile hormone, are adversely affected by hymenolepis diminuta infection of tenebrio molitor, in spite of circulating titres of the hormone remaining unchanged. it has therefore been proposed that juvenile hormone binding is disrupted at the tissue site level. juvenile hormone iii binding sites were located in the nuclear, microsomal and post-microsomal supernatant fractions of the follicle cells of tenebrio molitor. when jh-iii binding was ... | 1995 | 7596640 |
| interactions between parasites and insects vectors. | this review stresses the importance of studies that will provide a basic understanding of the pathology of parasite-infected vector insects. this knowledge should be a vital component of the very focussed initiatives currently being funded in the areas of vector control. vector fecundity reduction is discussed as an example of such pathology. underlying mechanisms are being investigated in a model system, hymenolepis diminuta-infected tenebrio molitor and in onchocerca-infected blackflies and pl ... | 1994 | 7565125 |
| hymenolepis diminuta (cestoda): effects of parasite density and temperature on the water balance of tenebrio molitor and subsequent infectivity of the cysticercoids. | 1980 | 7440999 | |
| [indoor air and allergic diseases]. | allergies may be the source of a variety of clinical symptoms. with regard to indoor air, however, the subject will be limited to inhalative allergies. these are diseases which are caused and supported by allergens entering the human organism via the respiratory pathway. the fundamentals of the origin of inhalative allergies are briefly discussed as well as the antigen-antibody reaction and the differentiation between different allergic reactions (types i and ii). in addition, the importance of ... | 1982 | 7184176 |
| the rostellar tegumentary cytoplasm of the metacestode of hymenolepis diminuta (cyclophyllidea: cestoda). | prior to scolex-retraction, the tegumentary syncytial cytoplasm of the presumptive rostellar region of hymenolepis diminuta (from tenebrio molitor kept at 26 degrees c) is indistinguishable from that of the rest of the cysticercoid. at 1 day after scolex-retraction differentiation of the rostellum has commenced, the tegumentary cytoplasm containing a small number of membrane-bound, ovoid, electron-dense granules which are absent from all other tegumentary regions of the metacestode. by 3 days af ... | 1983 | 6835702 |
| effects of dde and pcb (aroclor 1260) on experimentally poisoned female little brown bats (myotis lucifugus): lethal brain concentrations. | adult female little brown bats (myotis lucifugus) were collected in a church attic in north east, cecil county, md. mealworms (tenebrio molitor) containing organochlorine pollutants were fed to the bats as follows: 5 bats were dosed at 480 ppm dde, 12 at 150 ppm dde, 5 at 1000 ppm polychlorinated biphenyl (pcb; aroclor 1260), and 12 at 15 ppm pcb. seven other bats were fed untreated mealworms. the objective was to elevate brain levels of dde and pcb to lethality and measure these concentrations. ... | 1981 | 6790723 |
| quantitative structure-activity relationship of insect juvenile hormone mimetic compounds. | juvenile hormone mimetic activities on aedes aegypti (yellow-fever mosquito) and tenebrio molitor (yellow mealworm) of compounds having (2e,4e)-3,7,11-trimethyl-2,4-dodecadienone structures were comparatively and quantitatively analyzed in terms of their physiochemical structural parameters and by regression analysis. they were structurally composed of three classes, ester and thiol ester derivatives, amides, and ketones, depending on the c1 substituents. the results indicated that the steric di ... | 1984 | 6492079 |
| influence of canola hulls on gain in weight of larvae of the yellow mealworm, tenebrio molitor l. | larvae of the yellow mealworm, tenebrio molitor l., gembloux strain, race f, were reared on diets in which the protein component was supplied by defatted ground seed, defatted ground dehulled fraction, or defatted ground hulls of brassica napus l. cv. tower or brassica campestris l. cv. candle, obtained from autoclaved seed. they were also fed casein diets to which defatted ground hulls of tower or candle seed were added. gain in weight was equally good for all diets containing candle seed fract ... | 1983 | 6204614 |
| biosynthesis of 3-hydroxy-3-methylglutaryl-coa, 3-hydroxy-3-ethylglutaryl-coa, mevalonate and homomevalonate by insect corpus allatum and mammalian hepatic tissues. | both radioactively labeled 3-hydroxy-3-methyglutarylcoenzyme a and its homolog 3-hydroxy-3-ethylglutarylcoenzyme a are produced by a cytosolic fraction obtained from corpora allata-corpora cardiaca complexes of the moth manduca sexta, incubated with [1-14c]acetylcoenzyme a plus unlabeled propionylcoenzyme a. a particulate fraction isolated from the same tissue was able to reduce [me-3h]hydroxymethylglutaryl-coa and [3-14c]hydroxyethylglutaryl-coa to mevalonate and homomevalonate, respectively, w ... | 1981 | 6166327 |
| effects of colchicine on nucleic acid metabolism during metamorphosis of tenebrio molitor l. and in some mammalian tissues. | 1. administration of 10mug. of colchicine/pupa of the beetle tenebrio molitor l. arrests its differentiation, the pupa remaining alive for 2-3 weeks. 2. the same concentration of colchicine inhibits dna synthesis and stimulates rna synthesis (as shown by incorporation into the nucleic acids of labelled adenine, labelled uridine and labelled thymidine). the effects of colchicine on nucleic acid metabolism are first detected 3 days after its administration to first-day pupae. 3. no effects of colc ... | 1966 | 5968543 |
| experimental infection of gnotobiotic tenebrio molitor and white rats with hymenolepis diminuta (cestoda: cyclophyllidea). | 1968 | 5641055 | |
| [electrophoretic study of proteinogram variations during post-embryonic development of tenebrio molitor (coleoptera). comparative study of the case of galleria mellonella (lepidoptera)]. | 2016 | 5455243 | |
| the visual mechanisms of tenebrio molitor: changes in the electroretinogram as function of the stimulus duration. | 2016 | 5090099 | |
| in vitro hatching of hymenolepis diminuta eggs in tenebrio molitor extracts and in defined enzyme preparations. | 1972 | 5064689 | |
| the effect of a eugregarine gregarina polymorpha (hammerschmidt) on the mealworm larva of tenebrio molitor (l.). | 1967 | 4973771 | |
| the hatching of hymenolepis diminuta eggs and penetration of the hexacanths in tenebrio molitor beetles. | 1971 | 4933266 | |
| nutritional quality of oilseed protein isolates as determined with larvae of the yellow mealworm, tenebrio molitor l. | 1974 | 4408324 | |
| [the epidermis of the pupae of tenebrio molitor l. as target organ for the juvenile hormone analogue 10,11-epoxy-6,7-trans-2,3-trans-farnesylpropenylether (author's transl)]. | 2015 | 4357636 | |
| [the larval ecdysial glands of tenebrio molitor l. (tenebrionidae, coleoptera) and their changes within a moulting cycle]. | 2015 | 4330611 | |
| [the specificity of phenolase from tenebrio molitor larvae]. | 2014 | 4157721 | |
| ecdysteroids accelerate mitoses in accessory glands of beetle pupae. | during the 9-day pupal period of tenebrio molitor (the mealworm beetle), the cells of the male accessory glands undergo divisions for 7 days. there are two maxima in the mitotic activity in the glands in vivo, one at 1 day and the other at 4 days. the latter peak coincides with the large surge of ecdysterone occurring in the pupal stage. by the use of in vitro culture techniques, it has been demonstrated that the first bout of mitosis in both glands proceeds in basal medium, while the second bou ... | 2014 | 3972158 |
| hymenolepis diminuta: effect of metacestodes on production and viability of eggs in the intermediate host, tenebrio molitor. | 1986 | 3754271 | |
| hymenolepis diminuta: influence of metacestodes on synthesis and secretion of fat body protein and its ovarian sequestration in the intermediate host, tenebrio molitor. | female tenebrio molitor infected with metacestodes of hymenolepis diminuta exhibit elevated concentrations of female-specific proteins in their haemolymph and the origin of these has been investigated. following a 4 h in vitro incubation with [14c]leucine, fat bodies from non-infected females secreted 13 times more protein than those from females 12 days post-infection. a comparison of the uptake in vivo of radio-isotope labelled amino acids by ovaries from non-infected and infected beetles of v ... | 1986 | 3748608 |
| variation in the sizes of eggs and oncospheres and the numbers and distributions of testes in the tapeworm, hymenolepis diminuta. | four "strains" of hymenolepis diminuta were examined for morphological variation. these included the arme "strain" (currently maintained at the university of keele, u.k.), the osu "strain" (currently maintained at the ohio state university) and the tor (or ut) "strain" (currently maintained at the university of toronto), all of which were derived from the parental rice "strain," and the anu "strain" (currently maintained at the australian national university). additionally, 2 separate "clonal" p ... | 1986 | 3746559 |
| differences in biological characteristics of two strains of the cestode hymenolepis diminuta. | biological characteristics of infectivity, growth rate and fecundity of hymenolepis diminuta isolated from wild rattus rattus in japan were compared with parasites of texas origin maintained for several generations in this and many other laboratories in laboratory bred rattus norvegicus. the timing of development and maturation was similar in parasites from both sources, but the mean parasite dry weight was less and the mean egg production lower in japanese parasites in both single and multiple ... | 1987 | 3670903 |
| evidence against the hypothesis that metacestodes of hymenolepis diminuta inhibit corpora allata functioning in the intermediate host, tenebrio molitor. | several of the pathophysiological responses made by the beetle tenebrio molitor, when infected with metacestodes of hymenolepis diminuta, may be attributed to a parasite-induced reduction in host juvenile hormone titre. it has been suggested that production of this hormone by the corpora allata may be inhibited in parasitized insects. this hypothesis was tested using an in vitro radiochemical assay to compare the biosynthesis of juvenile hormone by single pairs of corpora allata taken from mated ... | 1987 | 3670902 |
| regeneration in the anterior-posterior axis of the insect thoracic segment. | after removal of a transverse strip of ventral thorax from the beetle, tenebrio molitor, interaction occurred between epidermis posterior to the mesothoracic leg and that anterior to the metathoracic leg. depending on the size and position of the excision, this interaction resulted in either the regeneration of the extirpated tissue or its replacement by an a/p reversed pattern of sclerites and supernumerary leg. by either route, local pattern continuity was restored between the normal meso- and ... | 2013 | 3655644 |
| hymenolepis diminuta: effect of infection upon the patency of the follicular epithelium in the intermediate host, tenebrio molitor. | 1987 | 3585048 | |
| new alpha-amylase and trypsin inhibitors among the cm-proteins of barley (hordeum vulgare). | barley cm-proteins are a group of at least five salt-soluble components (cma-e) that can be selectively extracted from endosperm with chloroform/methanol mixtures. n-terminal sequences of proteins cma, cmb and cmc have been determined and found to be homologous to those previously determined for cmd and cme, an observation which confirms that their structural genes are members of a dispersed multi-gene family. the purified cm-proteins were tested against trypsin and against alpha-amylases from s ... | 1986 | 3484638 |
| the effect of hymenolepis diminuta upon ecdysteroid activity in the haemolymph of the intermediate host, tenebrio molitor. | 1987 | 3438302 | |
| a dimeric inhibitor or insect alpha-amylase from barley. cloning of the cdna and identification of the protein. | a cdna clone, designated pup-44, whose longest open reading frame codes for a protein that is homologous to the wheat alpha-amylase inhibitors, has been isolated from a library obtained from developing barley endosperm. the deduced sequence for the mature protein, which is 122 residues long, is preceded by a sequence of 30 residues which has the typical features of a signal peptide. a closely corresponding protein, designated bdai-1, has been isolated from mature endosperm. bdai-1 behaves as a d ... | 2011 | 3257914 |
| differential scanning calorimetric analysis of antifreeze protein activity in the common mealworm, tenebrio molitor. | antifreeze proteins (afp) are able to inhibit the growth of ice-crystals at temperatures below the equilibrium freezing point (tf) of hemolymph. the analysis of afp activity has commonly involved the use of direct microscopic observation of a sample following inoculation with ice. the resulting activity, defined as the amount of thermal hysteresis observed between tf and the subsequent rapid growth of ice, has been reported to range up to 7 degrees c. however, most studies report high level of v ... | 2011 | 3191140 |
| activation of protein kinase c promotes glutamate-mediated transmission at the neuromuscular junction of the mealworm. | 1. actions of protein kinase c activators, 1,2-oleoylacetylglycerol (oag) and 12-o-tetradecanoylphorbol-13-acetate (tpa), on the glutamate-mediated neuromuscular transmission in the mealworm, tenebrio molitor, were studied by the microelectrode current-clamp and voltage-clamp techniques. 2. the activators oag and tpa stimulate the evoked and spontaneous transmitter releases from the presynaptic terminal, as evidenced by an increase in the quantum content estimated by the number of failures of ex ... | 2010 | 2901491 |
| new dimeric inhibitor of heterologous alpha-amylases encoded by a duplicated gene in the short arm of chromosome 3b of wheat (triticum aestivum l.). | a new wheat dimeric alpha-amylase inhibitor, designated wdai-3, has been characterized. wdai-3 is a homodimeric protein active against alpha-amylase from human saliva and from the insect tenebrio molitor, but inactive against that from pig pancreas or against trypsin. its n-terminal amino acid sequence is closer to those of the wheat dimeric inhibitors 0.19 and 0.53 (89-91% identical positions in 44 residues) than to that of the monomeric 0.28 inhibitor (69% identical positions). iha-b1-2, the g ... | 1989 | 2787745 |
| immobilizing and lethal effects of spider venoms on the cockroach and the common mealbeetle. | immobilizing and lethal effects of the venoms obtained from six spider species (brachypelma albopilosum, atrax robustus, cupiennius salei, selenops mexicanus, tegenaria atrica, argiope bruennichi) were tested on blatta orientalis (cockroach) and tenebrio molitor (common mealbeetle). the immobilizing effects were quantified by measuring insect locomotor activity in circle arenas observed over 72 hr after venom injection. both insect species showed cramps, quivering and jerking of the limbs as wel ... | 1989 | 2728023 |
| characterisation of neuropeptides of the akh/rpch-family from corpora cardiaca of coleoptera. | extracts of corpora cardiaca from two members of the family tenebrionidae. zophobas rugipes and tenebrio molitor, from one member of the chrysomelidae, leptinotarsa decemlineata, and from three members of the scarabaeidae, pachnoda marginata, p. sinuata and melolontha hippocastani, were assayed for adipokinetic and hypertrehalosaemic activity in acceptor locusts (locusta migratoria) and cockroaches (periplaneta americana), respectively. all corpus cardiacum material tested, except that from the ... | 1989 | 2607020 |
| effects of amino-acid mixtures on food utilization and growth in tenebrio molitor l. | ten holidic diets, varying in amino-acid concentration or composition, were fed to larvae of tenebrio molitor for four weeks at 27 +/- 0.25 degrees c and 65 +/- 5% r.h. effects of diet on growth, food utilization and energy utilization were recorded for individual larvae. differences in gains in fresh weight or in dry matter among larvae fed diets containing 0% to 5% of the amino-acid mixture were not demonstrated. however, larvae fed 10% or 20% of this mixture gained more than the former, but l ... | 1985 | 2412504 |
| occupational sensitivity to tenebrio molitor linnaeus (yellow mealworm). | tenebrio molitor is an abundant stored-grain pest in the northern united states. we evaluated an individual with work-related symptoms of rhinoconjunctivitis on exposure to this insect. prick skin tests with extracts prepared from the larval, pupal, and adult-life stages were positive for the patient and for another individual with allergy to a closely related species of beetle, alphitobius diaperinus. specific ige antibodies to the extracts were demonstrated by rast. rast inhibition demonstrate ... | 1990 | 2384648 |
| hymenolepis diminuta: an investigation of juvenile hormone titre, degradation and supplementation in the intermediate host, tenebrio molitor. | metacestodes of hymenolepis diminuta cause a perturbance of vitellogenesis in the intermediate host tenebrio molitor. the reduction in host reproductive output associated with infection may be due to this pathophysiology. many of these events are regulated by host juvenile hormone (jh). a comparison of the titre of jh and its rate of degradation in female control and parasitized 15-day-old insects has been made. haemolymph from female beetles contained 1.27 pmol jh equivalents/100 microliters. n ... | 1990 | 2362769 |
| identification of an allatostatin from the tobacco hornworm manduca sexta. | a peptide (manduca sexta allatostatin) that strongly inhibits juvenile hormone biosynthesis in vitro by the corpora allata from fifth-stadium larvae and adult females has been purified from extracts of heads of pharate adult m. sexta by a nine-step purification procedure. the primary structure of this 15-residue peptide has been determined: pglu-val-arg-phe-arg-gln-cys- tyr-phe-asn-pro-ile-ser-cys-phe-oh, where pglu is pyroglutamate). to our knowledge, this neuro-hormone has no sequence similari ... | 1991 | 1946359 |
| site-directed mutagenesis and expression in escherichia coli of wmai-1, a wheat monomeric inhibitor of insect alpha-amylase. | the wheat monomeric inhibitor wmai-1 (syn. 0.28) produced in escherichia coli using the pt7-7 expression vector has the correct n-terminal sequence and the same electrophoretic mobility and specific activity towards the alpha-amylase from the insect tenebrio molitor as the native wmai-1 isolated from wheat. this confirms that the native inhibitor is not glycosylated and contradicts claims that a putative glycosyl moiety was essential for inhibition. thirteen mutants have been obtained at six dif ... | 1991 | 1932677 |
| metacestode-induced depression of the production of, and response to, sex pheromone in the intermediate host tenebrio molitor. | hymenolepis diminuta infection of tenebrio molitor is associated with an impairment of vitellogenesis and a reduction in host fecundity. in this communication the effect of infection upon an additional aspect of host reproduction, the initiation of mating behavior, has been examined. copulatory release pheromone, extracted from control virgin females 6-7 days old, was shown to stimulate a positive mating response in 88% of 5- to 6-day-old control males; however, only a 56% response was elicited ... | 1991 | 1885925 |
| isolation of high-molecular-weight dna from insects. | a simple and rapid method for the isolation of high-molecular-weight dna from insects is described. the method does not require cscl ultracentrifugation or extensive dialysis. high-molecular-weight dna was obtained within 24 h. since the entire insect was used for dna isolation, an initial nuclei-enriched fraction was required. genomic dna was extracted from lysed nuclei by organic phase separation (liquid/liquid extraction). this method has been successfully applied to the isolation and purific ... | 1990 | 1693047 |
| evidence for the expression of a glucuronic acid-containing epitope in the central nervous system of two insects (calliphora vicina, diptera; tenebrio molitor, coleoptera). | the monoclonal antibody caf-i recognises a glucuronic acid-containing epitope present on various acidic glycosphingolipids of calliphora vicina. immunohistochemistry was performed on caf-i-labelled whole-mount preparations of the central nervous system, visualised by peroxidase-conjugated second antibody. a differential, temporal and spatial expression of this epitope in metamorphosing nervous tissue was outlined, that apparently characterises homologous neuronal populations in two phylogenetica ... | 1990 | 1691834 |
| serial sectioning of insects with hard exoskeleton by dissolution of the exocuticle. | the method reported here was designed to produce paraffin serial sections as thin as 5 microns of insects or other arthropods with a hard cuticle. heads and abdomens of apis mellifera, eristalomyia tenax and tenebrio molitor were fixed with schaffer's liquid, dehydrate with 80% ethanol, 90% ethanol, two changes of 100% isopropanol (2 hr each) and 12 hr in a 1:1 mixture of paraffin (58 c melting point) at 60 c. they were molded in paraffin after 12 hr of infiltration under a partial vacuum at 60 ... | 1992 | 1617001 |
| host stadium specificity in the gregarine assemblage parasitizing tenebrio molitor. | reciprocal cross-stadia experimental infections were used to demonstrate stadium specificity within the gregarine assemblage parasitizing tenebrio molitor, the yellow mealworm. gregarina cuneata, gregarina polymorpha, and gregarina steini are characteristic parasites of larval t. molitor. gregarina niphandrodes is a characteristic parasite of adult t. molitor. experimental infections were produced in all homologous host-parasite combinations. no infection was produced in heterologous or cross-st ... | 1992 | 1556647 |
| trehalase from male accessory gland of an insect, tenebrio molitor. cdna sequencing and developmental profile of the gene expression. | a cdna of alpha alpha-trehalase (ec 3.2.1.28) from a cdna library of male bean-shaped accessory gland of the mealworm beetle, tenebrio molitor, has been isolated by the homology screening approach. sequence analysis of the cdna (1830 bp) revealed that the cdna encoded a protein of 555 amino acids with a calculated m(r) of 64457. the deduced amino acid sequence had significant similarities to rabbit small intestine and escherichia coli trehalases. northern blotting and semi-quantitative pcr analy ... | 1992 | 1445264 |
| further characterization studies of the alpha-amylase protein inhibitor of gel electrophoretic mobility 0.19 from the wheat kernel. | a highly purified amylase protein inhibitor from the kernels of hexaplois wheat, designated 0.19 according to its gel electrophoretic mobility, has been characterized according to its circular dichroism spectra determined at different ph values and in the presence or absence of dissociating and reducing agents. the 0.19 albumin has also been characterized according to the specificity with which it inhibits 21 alpha-amylases from different origins and according to its sensitivity to a number of c ... | 1976 | 1252458 |
| [value of alkane-produced protein and three animal meals for growth and body nitrogen of meal worms (tenebrio molitor l.)]. | different types of chemical and biological procedures for screening protein quality of many foods are available. it is recognized however that such assays cannot be part of a routine screening technic. for good technologists and plant breeders in search of novelties, the main problems arise from the small size of samples available and the need to evaluate a large number of materials in a short period of time. the development of more accurate, economical and/or faster bioassay methods would be us ... | 1975 | 1227370 |
| naturally occurring insect growth regulators. iii. echinolone, a highly active juvenile hormone mimic from echinacea angustifolia roots. | a compound, c14h24o2, which induces strong juvenilizing effects in the yellow mealworm, tenebrio molitor l., following topical application to the pupal stage, was isolated in pure form from the roots of echinacea angustifolia dc and tentatively identified as dextrorotatory (e)-10-hydroxy-4,10-dimethyl-4,11-dodecadien-2-one. the compound has been named echinolone. | 2008 | 1221245 |
| naturally occurring insect growth regulators. ii. screening of insect and plant extracts as insect juvenile hormone mimics. | ethereal extracts prepared from the larvae, pupae, or eggs of 10 species of insects and from various parts of 343 species of higher plants were screened for juvenilizing effects against tenebrio molitor and oncopeltus fasciatus. activity in both species was shown by an extract of the larvae of the stable fly, stomoxys calcitrans, whereas an extract of the pupae was active in o. fasiatus only. extracts of two plant species (echinacea angustifolia roots and chamaecyparis lawsoniana seeds) showed h ... | 1975 | 1221244 |
| multienzymic nature of pyruvate kinase during development of hymenolepis diminuta (cestoda). | h. diminuta at different stages of development contained as many as five pyruvate kinase isozymes. four of these were unusually sensitive to allosteric activation by fructose-1,6-p2. one isozyme which occurred only in adults or near-adults was insensitive but had a relatively low km. all were inhibited by atp and ca2+, none by alanine, and the ph optimum was unaffected by fructose-1,6-p2. the five isozymes were present in gravid or reproductively active proglottids. two of them occurred after ei ... | 1975 | 1194877 |
| essential dietary amino acids for growth of larvae of the yellow mealworm, tenebrio molitor l. | larvae of the yellow mealworm, tenebrio molitor l., have been used to evaluate nutritional quality of proteins and protein isolates. however, such investigations have been complicated by lack of knowledge of dietary requirements of the larvae. to determine essential dietary amino acids for growth of tenebrio molitor, single amino acids were deleted from the amino acid mixture of the diet. diets were maintained isonitrogenous with supplementary glycine and, in the case of deleted glycine, with gl ... | 1975 | 1142013 |
| rna biosynthesis in isolated prothoracic glands of tenebrio molitor in vitro. | 1983 | 1021467 | |
| [development of cysticercoid larva of hymenolepis nana var. fraterna in tenebrio molitor and leucophaea maderae haemoceles (author's transl)]. | when embryos of hymenolepis nana var. fraterna are injected abdominally, they are able to reach the cysticercoid stage in the haemocele of leucophaea maderae which naturally resist to infection by ingestion of the eggs. the haemocytic defence reaction of the cockroach and the structure of the surface of larvae are examined and compared with development in a natural host tenebrio molitor. | 1978 | 677716 |
| effects of dde on experimentally poisoned free-tailed bats (tadarida brasiliensis): lethal brain concentrations. | adult female free-tailed bats (tadarida brasiliensis) were collected at bracken cave, texas, and shipped to the patuxent wildlife research center. treated mealworms (tenebrio molitor) containing 107 ppm dde were fed to 17 bats; five other bats were fed untreated mealworms. after 40 days on dosage, during which one dosed bat was killed accidentally, four dosed bats were frozen and the remaining 17 were starved to death. the objective was to elevate brain levels of dde to lethality and measure the ... | 1977 | 599587 |
| experimental feeding of dde and pcb to female big brown bats (eptesicus fuscus). | twenty-two female big brown bats (eptesicus fuscus) were collected in a house attic in montgomery county, maryland. seventeen were fed mealworms (tenebrio molitor larvae) that contained 166 ppm dde; the other five were fed uncontaminated mealworms. after 54 days of feeding, six dosed bats were frozen and the remaining 16 were starved to death. in a second experiment, 21 female big brown bats were collected in a house attic in prince georges county, maryland. sixteen were fed mealworms that conta ... | 2004 | 404435 |
| association of tenebrio molitor l. alpha-amylase with two protein inhibitors--one monomeric, one dimeric--from wheat flour. differential scanning calorimetric comparison of heat stabilities. | thermal stabilization resulting from protein . protein association between two protein inhibitors (coded as 0.19, a dimer, and 0.28, a monomer) from wheat flour and the alpha-amylase from tenebrio molitor l. (yellow mealworm) larvae was investigated by differential scanning calorimetry (heating rate 10 degrees c/min). thermograms (plots of heat flow vs. temperature) for the two inhibitors showed broad endothermic peaks with the same extrema (denaturation temperatures) at 93 degrees c, and equal, ... | 2000 | 305790 |
| affinity column purification of amylases on protein inhibitors from wheat kernel. | an affinity column was devised for the purification of a large number of amylases inhibited by the albumin from wheat kernel. the procedure involved linking the protein inhibitors from wheat to sepharose and then specifically eluting the amylase adsorbed to the gel with a high concentration of maltose. by this procedure, the amylases from tenebrio molitor l. (yellow mealworm) larvae and chicken pancreas were purified to homogeneity with good yields for the first time, as shown by both alkaline a ... | 1975 | 241755 |
| effect of glutamate and 5-hydroxytryptamine on neuromuscular transmission acheta domesticus and tenebrio molitor. | 1985 | 214216 | |
| [action of adrenocorticotropic hormone and the tripeptides, glu-his-l-phe and glu-his-d-phe on imprinting in the beetle, tenebrio molitor]. | 1989 | 209645 | |
| effect of acetylcholine and d-tubocurarine chloride on neuromuscular transmission in acheta domesticus and tenebrio molitor. | 1992 | 206320 | |
| [the pathways of glucose catabolism in tenebrio molitor: the effects of fasting and the injection of the corpus cardiacum-corpus allatum complex]. | in the adult of tenebrio molitor (coleopterous) the pentose cycle is greatly used for the glucose degradation: starvation or injection of corpus cardiacum-corpus allatum complex alter this metabolic orientation : the pentose pathway is decreased and the glucose itself is less utilized. | 2001 | 129268 |
| fine structure of the spermatheca of the mealworm beetle (tenebrio molitor l.). | the spermatheca of the female mealworm beetle is an inflorescence of branching cuticular ducts which is connected to the bursa copulatrix via a cuticular neck surrounded by a muscular coat. the infolded bursal cuticle consists of a distinct outer epicuticle, inner epicuticle, procuticle, and a subcuticular zone; the latter is rich in mucopolysaccharides. the cuticle of the neck lacks a distinct procuticle. the cuticle of the spermatheca itself is mostly inner epicuticle with two thin underlying ... | 2002 | 126805 |
| protein nutrition of tenebrio molitor l. xx. growth response of larvae to graded levels of amino acids. | larvae of tenebrio molitor l;, gembloux strain, race f, having an average initial weight of 10 mg were reared for 4 weeks at 27 +/- 0.25 degrees c and 65 +/- 5% relative humidity on diets containing an amino-acid mixture resembling the composition of larval tissues; each of 14 amino acids was tested individually at levels of 0, 10, 20, 50, 100 and 200% of the amount found in larval tissues, while the concentration of other amino acids remained constant. diets were maintained isonitrogenous at 1. ... | 2000 | 94831 |
| protein nutrition of tenebrio molitor l. xix. growth response to levels of dietary protein and of an amino acid mixture. | 1999 | 84554 |