Mosquitocidal bacterial toxins: diversity, mode of action and resistance phenomena

Bacteria active against dipteran larvae (mosquitoes and black flies) include a wide variety of Bacillus thuringiensis and B. sphaericus strains, as well as isolates of Brevibacillus laterosporus and Clostridium bifermentans. All display different spectra and levels of activity correlated with the na...

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Main Authors: Jean-François Charles, Christina Nielsen-LeRoux
Format: Article
Language:English
Published: Fundação Oswaldo Cruz (FIOCRUZ) 2000-01-01
Series:Memorias do Instituto Oswaldo Cruz
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762000000700034
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author Jean-François Charles
Christina Nielsen-LeRoux
author_facet Jean-François Charles
Christina Nielsen-LeRoux
author_sort Jean-François Charles
collection DOAJ
description Bacteria active against dipteran larvae (mosquitoes and black flies) include a wide variety of Bacillus thuringiensis and B. sphaericus strains, as well as isolates of Brevibacillus laterosporus and Clostridium bifermentans. All display different spectra and levels of activity correlated with the nature of the toxins, mainly produced during the sporulation process. This paper describes the structure and mode of action of the main mosquitocidal toxins, in relationship with their potential use in mosquito and/or black fly larvae control. Investigations with laboratory and field colonies of mosquitoes that have become highly resistant to the B. sphaericus Bin toxin have shown that several mechanisms of resistance are involved, some affecting the toxin/receptor binding step, others unknown.
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spelling doaj.art-b96a3aa185f74b9cb5f7c8d05080e6f32023-09-02T22:10:46ZengFundação Oswaldo Cruz (FIOCRUZ)Memorias do Instituto Oswaldo Cruz0074-02761678-80602000-01-019520120610.1590/S0074-02762000000700034Mosquitocidal bacterial toxins: diversity, mode of action and resistance phenomenaJean-François CharlesChristina Nielsen-LeRouxBacteria active against dipteran larvae (mosquitoes and black flies) include a wide variety of Bacillus thuringiensis and B. sphaericus strains, as well as isolates of Brevibacillus laterosporus and Clostridium bifermentans. All display different spectra and levels of activity correlated with the nature of the toxins, mainly produced during the sporulation process. This paper describes the structure and mode of action of the main mosquitocidal toxins, in relationship with their potential use in mosquito and/or black fly larvae control. Investigations with laboratory and field colonies of mosquitoes that have become highly resistant to the B. sphaericus Bin toxin have shown that several mechanisms of resistance are involved, some affecting the toxin/receptor binding step, others unknown.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762000000700034Bacillus thuringiensisBacillus sphaericusBrevibacillus laterosporusClostridium bifermentanstoxin bindingreceptorresistance
spellingShingle Jean-François Charles
Christina Nielsen-LeRoux
Mosquitocidal bacterial toxins: diversity, mode of action and resistance phenomena
Memorias do Instituto Oswaldo Cruz
Bacillus thuringiensis
Bacillus sphaericus
Brevibacillus laterosporus
Clostridium bifermentans
toxin binding
receptor
resistance
title Mosquitocidal bacterial toxins: diversity, mode of action and resistance phenomena
title_full Mosquitocidal bacterial toxins: diversity, mode of action and resistance phenomena
title_fullStr Mosquitocidal bacterial toxins: diversity, mode of action and resistance phenomena
title_full_unstemmed Mosquitocidal bacterial toxins: diversity, mode of action and resistance phenomena
title_short Mosquitocidal bacterial toxins: diversity, mode of action and resistance phenomena
title_sort mosquitocidal bacterial toxins diversity mode of action and resistance phenomena
topic Bacillus thuringiensis
Bacillus sphaericus
Brevibacillus laterosporus
Clostridium bifermentans
toxin binding
receptor
resistance
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762000000700034
work_keys_str_mv AT jeanfrancoischarles mosquitocidalbacterialtoxinsdiversitymodeofactionandresistancephenomena
AT christinanielsenleroux mosquitocidalbacterialtoxinsdiversitymodeofactionandresistancephenomena