* Universita degli Studi dell'Aquila Dipartimento di Scienze e Tecnologie Biomediche e di Biometria, Cattedre di Chimica Biologica e Biologia Molecolare, Localita Collemaggio, 1-67 100 L'Aquila, Italy, t Laboratoire d'Enzymologie et Service de Microbiologie, Universite de Liege Institut de Chimie, B6, B-4000 Sart Tilman (Liege), Belgium, and I Rijksuniversiiteit-Gent Laboratorium voor Microbiol...

Thiamethoxam (ACTARA 25WG) was evaluated for its termiticidal properties against three species of economically important subterranean termites (Isoptera: Termitidae) in the Philippines: Nasutitermes luzonicus Oshima, Macrotermes gilvus Hagen, and Microcerotermes losbanosensis Oshima. Results of the study indicated that exposure to soil or ingestion of paper treated with thiamethoxam at concentr...

Two chromosome-encoded beta-lactamases have been purified from Citrobacter diversus ULA-27. They exhibited slightly different isoelectric points (6.8 and 6.2) and very similar Mr values (congruent to 29,000). Their specificity spectrum was rather wide, since they hydrolysed some cephalosporins with kcat: values similar to those observed with the best penicillin substrates. Cloxacillin, methicil...

The Dufour gland of both queens and workers of Meranoplus diversus is very large. The reservoir is lined with flat epithelial cells, which usually contain smooth endoplasmic reticulum but also show the unusual accumulation of electrondense inclusions. Chemically, the gland contains an unusual mixture of long-chain fatty acids and their derivatives, including hydrocarbons, ketones and amines wit...

In the study antimicrobial activity of adonitol, arabinose, cellobiose, dulcitol, galactose, glycerol, glucose, inositol, lactose, maltose, mannitol, mannose, mellibiose, raffinose, salicin, sorbitol, sucrose, trehalose and xylose was determined on 96 strains of Bacillus anthracoides, 3; Bacillus badius, 5; Bacillus brevis (3), Bacillus circulans (4), Bacillus coagulans (3), Bacillus lentus (6)...