| chemical composition of the wax secreted by a scale insect (ceroplastes pseudoceriferus green). | the wax material in the secretion of a scale insect,ceroplastes pseudoceriferus green was analyzed chemically with special interest to the composition of higher fatty acids and higher alcohols. the wax consists of 34.2% fatty acids, 27.1% unsaponifiable matter and 29.5% resin acids. the fatty acids were found to be a complex mixture of 15 normal acids ranging from c(8) to c(32). of these, octacosanoic, triacontanoic and dotriacontanoic acids comprise over 30% of the wax. presence of relatively l ... | 1966 | 17805590 |
| dna barcoding of common soft scales (hemiptera: coccoidea: coccidae) in china. | the soft scales (hemiptera: coccoidea: coccidae) are a group of sap-sucking plant parasites, many of which are notorious agricultural pests. the quarantine and economic importance of soft scales necessitates rapid and reliable identification of these taxa. nucleotide sequences of the mitochondrial cytochrome c oxidase subunit i (coi) gene (barcoding region) and 28s rdna were generated from 340 individuals of 36 common soft scales in china. distance-based [(best match, automated barcode gap disco ... | 2015 | 25989705 |
| sesterterpenoids and diterpenoids of the wax excreted by a scale insect, ceroplastes pseudoceriferus. | a new sesterterpene, (2z,6z,10e)-cericerene-15,24-diol (1), and its 30-hydroxytriacontanoate (2) were isolated from the wax exuded by the scale insect ceroplastes pseudoceriferus, together with the acetates and 30-hydroxytriacontanoates of 3,15-dihydroxy- and 15, 20-dihydroxylabda-7,13-diene (3-6). the absolute configurations of the labdadiene alcohols were antipodal to the ordinary labdanes isolated from terrestrial plants. | 1999 | 10579861 |