Search

Your search keyword '"Ben Amira, Amal"' showing total 15 results
Start Over Author "Ben Amira, Amal"
15 results on '"Ben Amira, Amal"'

15. Combinatorial effect of Bacillus thuringiensis kurstaki and Photorhabdus luminescens against Spodoptera littoralis (Lepidoptera: Noctuidae).

Author

Benfarhat-Touzri D, Ben Amira A, Ben khedher S, Givaudan A, Jaoua S, and Tounsi S

Subjects
Animals, Bacillus thuringiensis Toxins, Biological Assay, Spodoptera physiology, Survival Analysis, Bacterial Proteins toxicity, Endotoxins toxicity, Hemolysin Proteins toxicity, Photorhabdus growth & development, Spodoptera drug effects, Spodoptera microbiology
Abstract

Spodoptera littoralis, one of the major pests of many important crop plants, is more susceptible to Bacillus thuringiensis aizawai delta-endotoxins than to those of Bacillus thuringiensis kurstaki. Within the framework of the development of efficient bioinsecticides and the prevention against insect resistance, we tested the effect of mixing B. thuringiensis kurstaki delta-endotoxins and Photorhabdus luminescens cells on S. littoralis growth. The obtained results showed that the growth inhibition of this insect was more effective when B. thuringiensis kurstaki spore-crystal mixture and Photorhabdus luminescens cells were used in combination. Furthermore, this synergism is mainly due to the presence of Cry1Ac, which is one of the three delta-endotoxins that form the crystal of B. thuringiensis kurstaki strain BNS3 in addition to Cry1Aa and Cry2Aa. This work shows a possibility to use B. thuringiensis as a delivery means for Photorhabdus bacteria in order to infect the insect hemocoel and to reduce the risk of developing resistance in the target organism., (© 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)

Published
2014
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results