Liming of acid soils in the Republic of Tatarstan

Лукманов, А А; Vladimirov, Konstantin; Valiev, Abdulsamad; Суханова, И М; Galavetdinov, C. M.

doi:10.53859/02352451_2021_35_9_15

Cited by 1 publication

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“…Silver nanoparticles can negatively affect the photosynthesis process when accumulated in leaves, since a slight release of Ag + from nanoparticles has been detected. The effect of AgNPs with a size of 18 nm on the photosynthetic apparatus of plants has also been established on algae (Chlorella vulgaris Beijer L.) and oat seeds (Avena sativa L.) [29]. The values of EC50 for oats according to morphometric indicators (germination energy, weight of roots and seedlings) ranged from 7 to 20 mg/l, respectively.…”

Section: Resultsmentioning

confidence: 99%

Ecotoxicity of AgNPs according to the state of biota

Tsepina,

Kolesnikov,

Minnikova

et al. 2024

BIO Web Conf.

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The work objective is to evaluate the ecotoxicity of silver nanoparticles (AgNPs) according to the state of the biota of Haplic Chernozems Calcic. Contamination of Haplic Chernozems Calcic with 10 nm AgNPs in concentrations of 0.1, 0.5, 1, 5, 10, 50, and 100 mg/kg was simulated in laboratory conditions. In this study, biodiagnostical methods were used to assess the ecotoxic effect of AgNPs on soil biota: the activity of catalase, dehydrogenases, invertase, phosphatase, urease, the total number of bacteria, the Azotobacter sp. abundance, germination, and length of radish roots. The response of soil biota to exposure to AgNPs was assessed by the difference between the values in contaminated and uncontaminated soil. It was found that the more silver nanoparticles were introduced into the soil, the stronger the ecotoxic effect on the biota. The highest sensitivity degree to contamination of Haplic Chernozems Calcic with AgNPs was recorded for the total number of bacteria. The critical value of the AgNPs content in Haplic Chernozems Calcic, which is 0.4 mg/kg has been developed.

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Section: Resultsmentioning

confidence: 99%