Isolation and Molecular Characterization of Cry Gene for Bacillus thuringiensis Isolated from Soil of Gaza Strip

Dagga, Azme; Aziz, Mohamed Abdel; Elmanama, Abdelraouf A.; Al-Sharif, Mervat; Hindi, Mahmoud El

doi:10.20546/ijcmas.2016.504.075

Cited by 1 publication

(1 citation statement)

References 18 publications

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“…Soil is still noted today as one of the environments in which there is the greatest amount of Bt spores (Dagga et al, 2016;Khodyrev et al, 2020). This environment has the ability to provide microhabitats that vary in their nutrient availability, in their physicochemical characteristics, in the characteristics of soil aggregates (Moreira and Siqueira, 2006), in intraspecific, interspecific interactions, and among the abiotic factors of the external environment and the soil itself (Cotta, 2016;Fierer, 2017;Rahman et al, 2024).…”

Section: Collection Of Soil For Analysis Of Fertility Soil Texture An...mentioning

confidence: 99%

Relations between soil attributes and the abundance of Bacillus thurigiensis in the Cerrado of Maranhão state, Brazil

et al. 2022

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The influence of abiotic factors on the abundance of microorganism populations in soil has been sparsely studied, especially regarding Bacillus thuringiensis (Bt) bacteria. Therefore, this research was aimed at analyzing the relationship between the chemical and textural characteristics of the soil of the Cerrado (savanna) of Maranhão State on the abundance of Bacillus thuringiensis. Soil samples were collected in different municipalities in eastern Maranhão: São Mateus do Maranhão, Alto Alegre, Coroatá, Timbiras and Codó. The soil samples were obtained in the 0-0.1 m layer for soil fertility and texture analysis. Then, in the same area for the isolation of Bt, 1 g of soil was collected. The colonies obtained in the isolation that featured morphological characteristics of Bacillus spp. were visualized under phase contrast microscopy. Principal component analysis, clustering and correlations were peformed. Results: The sand content correlated positively with the Bacillus thuringiensis index (iBt). The cluster analysis allowed for verifying that the soils not showed iBt in function of high concentrations of aluminum (Al) and potential acidity (H+Al). Considering as these attributes (Al and H+Al) alter the availability of P in the soil, the abundance of Bacillus thuringiensis may have been impaired by the deficiency of this element in the environment. Conclusion: Bt has correlations with soil texture, and high concentrations of aluminum and potential acidity in the soil influencing the permanence of Bacillus thuringiensis in Maranhão eastern Cerrado.

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Section: Collection Of Soil For Analysis Of Fertility Soil Texture An...mentioning

confidence: 99%

Relations between soil attributes and the abundance of Bacillus thurigiensis in the Cerrado of Maranhão state, Brazil

et al. 2022

View full text Add to dashboard Cite

show abstract

Isolation and Molecular Characterization of Cry Gene for Bacillus thuringiensis Isolated from Soil of Gaza Strip

Cited by 1 publication

References 18 publications

Relations between soil attributes and the abundance of Bacillus thurigiensis in the Cerrado of Maranhão state, Brazil

Relations between soil attributes and the abundance of Bacillus thurigiensis in the Cerrado of Maranhão state, Brazil

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