Enduring toxicity of transgenic Anabaena PCC 7120 expressing mosquito larvicidal genes from Bacillus thuringiensis ssp. israelensis

Robert Manasherob; Zachariah Ngalo Otieno-Ayayo; Eitan Ben-Dov; Rina Miaskovsky; Sammy Boussiba; Arieh Zaritsky

doi:10.1046/j.1462-2920.2003.00503.x

Enduring toxicity of transgenic Anabaena PCC 7120 expressing mosquito larvicidal genes from Bacillus thuringiensis ssp. israelensis

Robert Manasherob
, Zachariah Ngalo Otieno-Ayayo
, Eitan Ben-Dov
, Rina Miaskovsky
, Sammy Boussiba
, Arieh Zaritsky

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

Persistence of biological control agents against mosquito larvae was tested under simulated field conditions. Mosquito larvicidal activity of transgenic Anabaena PCC 7120 expressing cry4Aa, cry11Aa and p20 from Bacillus thuringiensis ssp. israelensis was greater than B. thuringiensis ssp. israelensis primary powder (fun 89C06D) or wettable powder (WP) (Bactimos products) when either mixed with silt or exposed to sunlight outdoors. Reduction of Bactimos primary powder toxicity was at least 10-fold higher than Anabaena's after mixing with silt. In outdoors experiments, Bactimos WP remained toxic (over 30% mortality of 3rd instar Aedes aegypti larvae) for 2-4 days only, while transgenic Anabaena's toxicity endured 8-21 days.

Original language	English
Pages (from-to)	997-1001
Number of pages	5
Journal	Environmental Microbiology
Volume	5
Issue number	10
DOIs	https://doi.org/10.1046/j.1462-2920.2003.00503.x
State	Published - 1 Oct 2003

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 2 Zero Hunger

ASJC Scopus subject areas

Microbiology
Ecology, Evolution, Behavior and Systematics

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10.1046/j.1462-2920.2003.00503.x

Cite this

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title = "Enduring toxicity of transgenic Anabaena PCC 7120 expressing mosquito larvicidal genes from Bacillus thuringiensis ssp. israelensis",

abstract = "Persistence of biological control agents against mosquito larvae was tested under simulated field conditions. Mosquito larvicidal activity of transgenic Anabaena PCC 7120 expressing cry4Aa, cry11Aa and p20 from Bacillus thuringiensis ssp. israelensis was greater than B. thuringiensis ssp. israelensis primary powder (fun 89C06D) or wettable powder (WP) (Bactimos products) when either mixed with silt or exposed to sunlight outdoors. Reduction of Bactimos primary powder toxicity was at least 10-fold higher than Anabaena's after mixing with silt. In outdoors experiments, Bactimos WP remained toxic (over 30\% mortality of 3rd instar Aedes aegypti larvae) for 2-4 days only, while transgenic Anabaena's toxicity endured 8-21 days.",

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AU - Manasherob, Robert

AU - Otieno-Ayayo, Zachariah Ngalo

AU - Ben-Dov, Eitan

AU - Miaskovsky, Rina

AU - Boussiba, Sammy

AU - Zaritsky, Arieh

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AB - Persistence of biological control agents against mosquito larvae was tested under simulated field conditions. Mosquito larvicidal activity of transgenic Anabaena PCC 7120 expressing cry4Aa, cry11Aa and p20 from Bacillus thuringiensis ssp. israelensis was greater than B. thuringiensis ssp. israelensis primary powder (fun 89C06D) or wettable powder (WP) (Bactimos products) when either mixed with silt or exposed to sunlight outdoors. Reduction of Bactimos primary powder toxicity was at least 10-fold higher than Anabaena's after mixing with silt. In outdoors experiments, Bactimos WP remained toxic (over 30% mortality of 3rd instar Aedes aegypti larvae) for 2-4 days only, while transgenic Anabaena's toxicity endured 8-21 days.

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Enduring toxicity of transgenic Anabaena PCC 7120 expressing mosquito larvicidal genes from Bacillus thuringiensis ssp. israelensis

Abstract

UN SDGs

ASJC Scopus subject areas

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