Influence of Cry1Ac Toxin From Bt Cotton on the Soil Microbiota

Fernandes, Marcos Gino and Araújo, Renata Pires de and Costa, Eduardo Neves and Zangirolymo, Ana Claudia Terumi Abe and Pereira, Rodrigo Matheus (2019) Influence of Cry1Ac Toxin From Bt Cotton on the Soil Microbiota. Journal of Agricultural Science, 11 (4). p. 364. ISSN 1916-9752

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Abstract

The first record of transgenic cotton cultivation in Brazil was in 2005, of that of the cultivar MON 531, possessing the cry1Ac gene. Since then, no evaluation has been performed to understand whether the cultivation of Bt cotton has caused any interference with the soil microbiota, including bacteria. In this context, our research was aimed to assess whether the cultivation of Bt cotton negatively affects the community of soil bacteria, through quantitative and metagenomic analyses (marker gene 16S rRNA) for phylum identification. Samples of bacterial populations obtained from the soil cultivated with Bt cotton expressing the Cry1Ac toxin were compared with soil samples from the area cultivated with conventional cotton. Significant differences were not observed in the measure of colony-forming units of bacteria between the soils cultivated with Bt and non-Bt cotton; however, differences were detected only when comparing samples from different collection times of the Bt treatment. Cultivation of Bt cotton did not affect the diversity of the soil bacterial population. Overall, our study shows that, similar to most of the works that have been reported worldwide, cultivation of transgenic cotton does not seem to affect the quantity and diversity of natural soil bacteria.

Item Type: Article
Subjects: Open Archive Press > Agricultural and Food Science
Depositing User: Unnamed user with email support@openarchivepress.com
Date Deposited: 11 May 2023 06:32
Last Modified: 17 Oct 2024 04:38
URI: http://library.2pressrelease.co.in/id/eprint/1195

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