| control of eublemma amabilis moore (noctuidae: lepidoptera) and holcocera pulverea meyr (blastobasidae; lepidoptera), predators of the lac insect kerria lacca (kerr) by bacillus thurgiensis berliner. | | 1968 | 5749532 |
| assessment of the carcinogenic potential of a proposed food coloring additive, laccaic acid, using short-term assays. | laccaic acid is a red colored natural dye produced by the insect laccifer lacca or coccus lacca. it is obtained in large amounts as a by-product of the shellac industry and has been considered for general use as a food coloring agent. laccaic acid is found to have no mutagenic activity as assessed by two short-term assays: the salmonella/microsome mutagenicity test, and the phi x fidelity assay. however, laccaic acid did inhibit metabolic cooperation in chinese hamster v79 cells. these results s ... | 1984 | 6401125 |
| co-existence, phylogeny and putative role of wolbachia and yeast-like symbiont (yls) in kerria lacca (kerr). | this study reports the first detection of wolbachia and yeast-like symbiont (yls) harbored in kerria lacca (kerr), a scale insect, latter of which produces an economically important natural resin, known as lac. wolbachia was detected using pcr amplification and sequencing of 16s rdna; and further confirmation and phylogenetic analysis was carried out by fast evolving wsp gene. neighbor-joining and maximum parsimonious (mp) analysis showed that this strain belongs to subgroup "ori" of wolbachia s ... | 2011 | 21674166 |
| molecular phylogeny and biogeography of lac insects (hemiptera: kerriidae) inferred from nuclear and mitochondrial gene sequences. | lac insects are commercial scale insects with high economic value. the combined molecular phylogeny of 20 lac insect populations was generated using elongation factor 1 alpha, mitochondrial cytochrome c oxidase subunit i and the small subunit ribosomal rna gene loci. the 20 populations of lac insects clustered into four distinct clades supported by high bootstrap values in maximum parsimony, maximum likelihood and bayesian analyses. clade a at the base of the dendrogram comprises kerria ruralis ... | 2013 | 24078090 |
| antimicrobial efficacy of methylated lac dye, an anthraquinone derivative. | a natural red dye which is produced by the tiny insects kerria lacca while feeding on host trees is popularly known as lac dye. lac dye is a mixture of at least five closely related pure compounds all being anthraquinone derivatives designated as laccaic acid a, b, c, d and e. anthraquinones isolated from different natural sources and reported to have potent antimicrobial activity. the lac dye, which is also a mixture of anthraquinone derivatives, is expected to exhibit antifungal and antibacter ... | 2017 | 29151648 |
| lac dye as a potential anti-neoplastic agent. | certain anthraquinone compounds are effectively used for treatment of cancer. the present study describes the inhibitory activity of lac dye, a mixture of polyhydroxy anthraquinone compounds (laccaic acid a, b, c, d and e), produced by the indian lac insect, kerria lacca (kerr). | 2017 | 27461693 |
| fabrication of capillary-like structures with pluronic f127® and kerria lacca resin (shellac) in biocompatible tissue-engineered constructs. | the fabrication of large cellular tissue-engineered constructs is currently limited by an inability to manufacture internal vasculature that can be anastomosed to the host circulatory system. creation of synthetic tissues with microvascular networks that adequately mimic the size and density of in vivo capillaries remains one of the foremost challenges within tissue engineering, as cells must reside within 200-300 μm of vasculature for long-term survival. in our previous work, we used a sacrific ... | 2017 | 27098834 |
| distinction of indian commercial lac insect lines of kerria spp. (homoptera: coccoidea) based on their morphometrics. | the lac insects belong to the genus kerria (hemiptera: coccoidea: kerriidae) and are commercially exploited worldwide for the production of lac, which comes from their waxy test and has diverse industrial applications. the insects are maintained by the indian institute of natural resins and gums as distinctive lines that are cultivated and commercialized in the lac producing areas of india. the lines are all considered to belong to the genus kerria but without validation of their taxonomic chara ... | 2014 | 25527577 |
| abstract 87: beyond cotton candy: fabrication of capillary networks within biocompatible tissue- engineered constructs from kerria lacca resin (shellac). | | 2014 | 25942198 |
| "phloem sap analysis of schleichera oleosa (lour) oken, butea monosperma (lam) taub. and ziziphus mauritiana (lam) and hemolymph of kerria lacca (kerr) using hplc and tandem mass spectrometry". | females of lac insects especially of kerria lacca (kerr) secret a resin known as lac for their own protection, which has tremendous applications. lac insect completes its lifecycle on several host taxa where it exclusively feeds on phloem sap but schleichera oleosa (lour.) oken, butea monosperma (lam.) and ziziphus mauritiana (lam.) are its major hosts. analysis of phloem sap constituents as well as hemolymph of lac insect is important because it ultimately gets converted into lac by insect inte ... | 2013 | 24431523 |
| mouthparts and stylet penetration of the lac insect kerria lacca (kerr) (hemiptera:tachardiidae). | hitherto less known aspects on mouthpart morphology and penetration mechanism of the lac insect kerria lacca have been explored. unique details of the mouthparts, i.e. morphology of labium and stylets and salivary sheath have been brought out. the gross morphology of the mouthparts though resembled other plant sucking homopterans; a two-segmented labium with symmetrically distributed six pairs of contact-chemoreceptors on its surface was distinct; the mandibular stylets had serrations on its ext ... | 2012 | 22531548 |
| genetic variation among species, races, forms and inbred lines of lac insects belonging to the genus kerria (homoptera, tachardiidae). | the lac insects (homoptera: tachardiidae), belonging to the genus kerria, are commercially exploited for the production of lac. kerria lacca is the most commonly used species in india. rapd markers were used for assessing genetic variation in forty-eight lines of kerria, especially among geographic races, infrasubspecific forms, cultivated lines, inbred lines, etc., of k. lacca. in the 48 lines studied, the 26 rapd primers generated 173 loci, showing 97.7% polymorphism. by using neighbor-joining ... | 2011 | 21931527 |
| genetic evidence of an unorthodox chromosomal system in the lac insect kerria lacca (kerr). | | 1970 | 5512258 |