title: Selection of Lecanicillium Strain with High Virulence against Developmental Stages of Bemisia tabaci.
abstract: Selection of fungal strains with high virulence against the developmental stages of Bemisia tabaci was performed using internal transcribed spacer regions. The growth rate of hyphae was measured and bioassay of each developmental stage of B. tabaci was conducted for seven days. All of the fungal strains tested were identified as Lecanicillium spp., with strain 4078 showing the fastest mycelium growth rate (colony diameter, 16.3 ± 0.9 mm) among the strains. Compared to strain 4075, which showed the slowest growth rate, the growth rate of strain 4078 was increased almost 2-fold after seven days. Strains 4078 and Btab01 were most virulent against the egg and larva stages, respectively. The virulence of fungal strains against the adult stage was high, except for strains 41185 and 3387. Based on the growth rate of mycelium and level of virulence, strains 4078 and Btab01 were selected as the best fungal strains for application to B. tabaci, regardless of developmental stage.
authors: Department of Bioscience and Biotechnology, The University of Suwon, Hwaseong 445-743, Korea.
authors: Heeyong
authors: H
authors: Park
authors: Keun
authors: K
authors: Kim
keywords: Bemisia tabaci; Developmental stage; Internal transcribed spacer; Lecanicillium sp.; Virulence
references: Lett Appl Microbiol. 1999 Apr;28(4):258-62
references: 10212437
references: J Clin Microbiol. 2000 Apr;38(4):1510-5
references: 10747135
references: J Biosci Bioeng. 2007 Dec;104(6):498-505
references: 18215637
references: Adv Virus Res. 1978;22:55-110
references: 345778