Synthesis of selenium and silver nanobiocomposites and their influence on phytopathogenic bacterium Clavibacter michiganensis subsp. sepedonicus

Perfileva, А. I.; Ножкина, О. А.; Граскова, И. А.; Сидоров, А. В.; Lesnichaya, M. V.; Александрова, Г. П.; Dolmaa, G.; Клименков, И. В.; Сухов, Б. Г.

doi:10.1007/s11172-018-2052-4

Cited by 25 publications

(23 citation statements)

References 14 publications

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“…We have found earlier that the morphology of the Cms cells changes under the influence of Se NC [ 8 , 9 ]. Cells are shortened and thickened, indicating adverse effects on bacteria [ 8 , 9 ]. At the same time, with the use of vital dyes, we have shown that almost half of the cells have died.…”

Section: Resultsmentioning

confidence: 99%

“…Damage from the disease can reach 40%, but there is currently no effective way to control Cms . In earlier studies, we demonstrated the bactericidal effect of the Se/AG NC with different levels of Se on Cms [ 9 ]. For instance, Se/AG NC with 1.23% of Se decreased the survival of Cms by 20% compared to the control after an hour incubation of bacteria with it.…”

Section: Discussionmentioning

confidence: 99%

“…For instance, Se/AG NC with 1.23% of Se decreased the survival of Cms by 20% compared to the control after an hour incubation of bacteria with it. The bacterial cells looked deformed (thickened and shortened) after 24 h of incubation [ 9 ]. Spherical particles corresponding in size to the Se nanoparticles were observed attached to their surface [ 8 , 9 ].…”

Section: Discussionmentioning

confidence: 99%

“…Earlier, we studied silver and selenium (Se) NCs in natural polymer matrices as potential agents for the protection and healing of potatoes from pathogenic bacteria [ 7 , 8 , 9 ]. These substances are water-soluble, easily obtainable, and characterized by a high yield and a stable reproducible composition.…”

Section: Introductionmentioning

confidence: 99%

“…sepedonicum ( Cms ) [ 10 ], a pathogenic actinomycete causing ring rot of potato, which is a devastating disease badly affecting potato yield and for which there are currently no effective means to prevent or control it [ 11 ]. We have shown earlier the antibacterial effect of silver NC in matrices of humic substances on Cms and the absence of negative effects on potato plants in vitro [ 7 , 9 ]. In the here-presented study, we tested Se NCs as a potential means of protecting and healing plants from diseases considering also their effect not only on microorganisms but also on the potato organism itself, as well as their ability to accumulate in potato tissues after treatment and to influence the microbiome inhabitants of the environment.…”

Section: Introductionmentioning

confidence: 99%

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Selenium Nanocomposites in Natural Matrices as Potato Recovery Agent

Perfileva

Ножкина

Ганенко

et al. 2021

IJMS

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The paper presents a study of the effect of chemically synthesized selenium nanocomposites (Se NCs) in natural polymer matrices arabinogalactan (AG) and starch (ST) on the viability of the potato ring rot pathogen Clavibacter sepedonicus (Cms), potato plants in vitro, and the soil bacterium Rhodococcus erythropolis. It was found that the studied Se NCs have an antibacterial effect against the phytopathogenic Cms, reducing its growth rate and ability to form biofilms. It was revealed that Se NC based on AG (Se/AG NC) stimulated the growth and development of potato plants in vitro as well as their root formation. At the same time, Se did not accumulate in potato tissues after the treatment of plants with Se NCs. The safety of the Se NCs was also confirmed by the absence of a negative effect on the growth and biofilm formation of the soil bacterium R. erythropolis. The obtained results indicate that Se NCs are promising environmentally safe agents for the protection and recovery of cultivated plants from phytopathogenic bacteria.

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