Abstract
In the present work researches on influence of chemically synthesized nanocomposites of selenium (NC) in natural polymeric matrices - arabinogalactan (selenium content 6.4%) and starch (selenium content 1.2%) on a condition of antioxidant system of potato plants are presented. It is known that during abiotic or biotic stress, lipid peroxidation products (POL) are formed in plant tissues and the content of reactive oxygen species (ROS) in plant tissues increases, which leads to dysfunction of the plant cell membrane, inhibition of biochemical processes in the plant cell and, as a consequence, cell death. Therefore, the main task of this work was the study of NC for antioxidant activity. Studies have been conducted on the effect of NC on the content of reactive oxygen species (ROS) in potato root tissues, the activity of peroxidase enzyme in the tissues of roots and leaves, and the content of lipid peroxidation products (LPO) - diene conjugates (DC) and malondialdehyde (MDA) in the tissues of roots and leaves of potatoes. Studies were conducted on uninfected potato plants of Lukyanovsky variety (susceptible variety) and infected with phytopathogenic bacterium Clavibacter sepedonicus (Cms) in vitro. The results of the study showed that NC affect the antioxidant system of plants during infection. NC action reduced the release of ROS, reduced the content of LPO products, and also reduced the activity of the enzyme peroxidase. Studies of the primary stress indicator – DC, it was found that only NC Se/Ag had a negligible effect when processing non-infected potato plants, but when at the same time, both studied substances reduced the indicator in the variant with infected plants. Thus, it was found that NC reduces the stress load on the infected plants, reducing cell damage by products of oxidative stress. Perhaps this effect is related to the nature of polysaccharide matrices and the size of encapsulated selenium nanoparticles in them and its toxic effect. Combining all the data obtained, we can talk about the effectiveness of NC in the fight against bacterial diseases of cultivated plants and assume its use as an effective and safe remedy against them.
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Claims 8
Claim · model-written summary
Nanocomposites reduced reactive oxygen species release during infection.
- Taxon
- potato plants
Solanum tuberosume1 - Treatment
- NCe0
- Interactor
- Clavibacter sepedonicus
Clavibacter sepedonicuse2pathogen - Outcome
- release of ROSe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NC action reduced the release of ROS”
e1“antioxidant system of potato plants”
e2“infected with phytopathogenic bacterium Clavibacter sepedonicus (Cms) in vitro.”
Claim · model-written summary
Nanocomposites reduced lipid peroxidation products during infection.
- Taxon
- potato plantsSolanum tuberosume1
- Treatment
- NCe0
- Interactor
- Clavibacter sepedonicusClavibacter sepedonicuse2pathogen
- Outcome
- content of LPO productse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NC action reduced the release of ROS, reduced the content of LPO products”
e1“antioxidant system of potato plants”
e2“infected with phytopathogenic bacterium Clavibacter sepedonicus (Cms) in vitro.”
Claim · model-written summary
Nanocomposites reduced peroxidase activity during infection.
- Taxon
- potato plantsSolanum tuberosume1
- Treatment
- NCe0
- Interactor
- Clavibacter sepedonicusClavibacter sepedonicuse2pathogen
- Gene
- peroxidasee0
- Outcome
- activity of the enzyme peroxidasee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NC action reduced the release of ROS, reduced the content of LPO products, and also reduced the activity of the enzyme peroxidase.”
e1“antioxidant system of potato plants”
e2“infected with phytopathogenic bacterium Clavibacter sepedonicus (Cms) in vitro.”
Claim · model-written summary
Se/Ag nanocomposite had negligible effect on diene conjugates in uninfected potato.
- Taxon
- potato plantsSolanum tuberosume0
- Treatment
- NC Se/Age0
- Outcome
- DCe1
- Direction
- negligible effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“only NC Se/Ag had a negligible effect when processing non-infected potato plants”
e1“Studies of the primary stress indicator – DC”
Claim · model-written summary
Both studied nanocomposites reduced diene conjugates in infected potato.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- both studied substancese0
- Interactor
- Clavibacter sepedonicusClavibacter sepedonicuse2pathogen
- Outcome
- DCe1
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both studied substances reduced the indicator in the variant with infected plants.”
e1“Studies of the primary stress indicator – DC”
e2“infected with phytopathogenic bacterium Clavibacter sepedonicus (Cms) in vitro.”
t0“Potato Plants”
Claim · model-written summary
The authors infer nanocomposites reduce oxidative cell damage in infected plants.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- NCe0
- Interactor
- Clavibacter sepedonicusClavibacter sepedonicuse1pathogen
- Outcome
- cell damage by products of oxidative stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NC reduces the stress load on the infected plants, reducing cell damage by products of oxidative stress.”
t0“Potato Plants”
e1“Clavibacter sepedonicus (Cms)”
Claim · model-written summary
The authors propose polysaccharide matrices and nanoparticle size may explain the effect.
- Taxon
- PotatoSolanum tuberosumt0
- Outcome
- this effecte0
- Qualifier
- nature of polysaccharide matrices and the size of encapsulated selenium nanoparticlese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Perhaps this effect is related to the nature of polysaccharide matrices and the size of encapsulated selenium nanoparticles in them and its toxic effect.”
t0“Potato Plants”
Claim · model-written summary
The authors propose nanocomposites as a remedy for bacterial diseases of cultivated plants.
- Taxon
- PotatoSolanum tuberosumt0
- Outcome
- use as an effective and safe remedye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“we can talk about the effectiveness of NC in the fight against bacterial diseases of cultivated plants and assume its use as an effective and safe remedy against them.”
t0“Potato Plants”
The same questions in other papers
selenium atom · Clavibacter sepedonicus · Solanum tuberosum (potato)Results agree
1 paper in the same direction as this paper
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.