title: Larvicidal activity of Bacillus thuringiensis natural isolates; indigenous to Japan, against two nematoceran insect pests occurring in urban sewage environments.
abstract: A total of 1449 Bacillus thuringiensis strains, indigenous to Japan, were screened for larvicidal activity against two nematoceran insect pests, the mosquito, Culex pipiens molestus (Culicidae), and the moth-fly, Telmatoscopus albipunctatus (Psychodidae). Mosquito specific strains were abundant in H serotypes 3abc (serovar kurstaki), 3ade (fukuokaensis), 4ac (kenyae), 7 (aizawai), 11ac (kyushuensis) and 29 (amagiensis), while moth-fly specific strains were predominantly found in H serotype 17 (tohokuensis). Strains toxic to both insects were most frequently detected in H serotypes 10 (darmstadiensis) and 17/27. Seven selected B. thuringiensis strains were highly toxic to Culex and/or Telmatoscopus. There was a diversity in SDS-PAGE profiles of inclusion proteins of these strains.
authors.affiliation: Section of Applied Microbiology, Fukuoka Industrial Technology Centre, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Saitoh
authors.forename: K
authors.initials: K
authors.lastname: Higuchi
authors.forename: E
authors.initials: E
authors.lastname: Mizuki
authors.forename: M
authors.initials: M
authors.lastname: Ohba
mesh_terms: D000818:Animals; D016863:Bacillaceae Infections / Q000382:microbiology*; D001413:Bacillus thuringiensis / Q000737:chemistry / Q000276:immunology / Q000472:pathogenicity*; D001426:Bacterial Proteins / Q000032:analysis; D003465:Culex / Q000382:microbiology*; D004591:Electrophoresis, Polyacrylamide Gel; D004783:Environmental Microbiology; D007564:Japan; D007814:Larva / Q000382:microbiology*; D011576:Psychodidae / Q000382:microbiology*; D012699:Serology; D012722:Sewage / Q000382:microbiology*; D014504:Urban Health
chemical_list: D001426:Bacterial Proteins; D012722:Sewage