WHOLE GENOME SEQUENCING OF Bacillus thuringiensis var. darmstadiensis 56 STRAIN AND THE STUDY OF INSECTICIDAL ACTIVITY OF THE BIOLOGICAL PREPARATION ON ITS BASIS

Belousova, Maria

doi:10.15389/agrobiology.2020.1.87eng

Cited by 2 publications

(1 citation statement)

References 27 publications

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“…However, in some countries, exotoxin-containing preparations are still used, such as preparation Bitoxybacillin (Russia), based on the Bt var. thuringiensis strain capable of producing both exotoxin and Cry toxins [ 42 , 43 ]. Spores contained in Bt -pesticides are also intensively discussed in the context of stability in the environment and the ability to accumulate in the soil [ 44 , 45 , 46 , 47 , 48 ] and non-target organisms [ 49 ].…”

Section: Introductionmentioning

confidence: 99%

Dissecting the Environmental Consequences of Bacillus thuringiensis Application for Natural Ecosystems

Belousova

Malovichko

Shikov

et al. 2021

Toxins

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Bacillus thuringiensis (Bt), a natural pathogen of different invertebrates, primarily insects, is widely used as a biological control agent. While Bt-based preparations are claimed to be safe for non-target organisms due to the immense host specificity of the bacterium, the growing evidence witnesses the distant consequences of their application for natural communities. For instance, upon introduction to soil habitats, Bt strains can affect indigenous microorganisms, such as bacteria and fungi, and further establish complex relationships with local plants, ranging from a mostly beneficial demeanor, to pathogenesis-like plant colonization. By exerting a direct effect on target insects, Bt can indirectly affect other organisms in the food chain. Furthermore, they can also exert an off-target activity on various soil and terrestrial invertebrates, and the frequent acquisition of virulence factors unrelated to major insecticidal toxins can extend the Bt host range to vertebrates, including humans. Even in the absence of direct detrimental effects, the exposure to Bt treatment may affect non-target organisms by reducing prey base and its nutritional value, resulting in delayed alleviation of their viability. The immense phenotypic plasticity of Bt strains, coupled with the complexity of ecological relationships they can engage in, indicates that further assessment of future Bt-based pesticides’ safety should consider multiple levels of ecosystem organization and extend to a wide variety of their inhabitants.

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Section: Introductionmentioning

confidence: 99%

Dissecting the Environmental Consequences of Bacillus thuringiensis Application for Natural Ecosystems

Belousova

Malovichko

Shikov

et al. 2021

Toxins

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Antimicrobial activity of bacteria isolated from Leptinotarsa decemlineata and Solanum tuberosum

Ефименко¹,

Andrey²,

Mariia³

et al. 2022

Ann Environ Sci Toxicol

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From the intestinal microbiota of Colorado potato beetles and their larvae (Leptinotarsa decemlineata), as well as from their feed – potato leaves, 18 bacteria of different species exhibiting antimicrobial activity (56% of the total number of isolated strains) were isolated. The species of bacteria from all three sources of excretion are different. The following 12 species were described for the first time in the gut microbiota of L. decemlineata larvae and imago: Micromonospora phytophila, Neobacillus drentensis, Pseudomonas gessardii, P. poae, P. rhizosphaerae, Pantoea agglomerans, Streptomyces chartreusis, S. clavifer, S. microflavus, S. rishiriensis, S. badius, and S. coelicoflavus. Antimicrobial activity was not previously known for three species (Staphylococcus argenteus, S. camponoticapitis, S. clavifer). Antimicrobial activity against methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant Leuconostoc mesenteroides, multidrug-resistant P. aeruginosa, and Mycobacterium smegmatis was revealed. The gut microbiota of Colorado potato beetles can be considered an encouraging source of antibiotic–producing strains that overcome drug resistance of pathogenic bacteria, as well components of biopesticides.

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WHOLE GENOME SEQUENCING OF Bacillus thuringiensis var. darmstadiensis 56 STRAIN AND THE STUDY OF INSECTICIDAL ACTIVITY OF THE BIOLOGICAL PREPARATION ON ITS BASIS

Cited by 2 publications

References 27 publications

Dissecting the Environmental Consequences of Bacillus thuringiensis Application for Natural Ecosystems

Dissecting the Environmental Consequences of Bacillus thuringiensis Application for Natural Ecosystems

Antimicrobial activity of bacteria isolated from Leptinotarsa decemlineata and Solanum tuberosum

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