Effect of tungsten-resistant bacteria on uptake of tungsten by lettuce and tungsten speciation in plants

Park, Jin Hee; Han, Hyeop-Jo

doi:10.1016/j.jhazmat.2019.120825

Cited by 14 publications

(5 citation statements)

References 39 publications

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“…2). The data obtained by us are consistent with earlier studies [28,29], according to which molybdenum is vital for the normal growth and development of plants.…”

Section: Determination Of Aldehyde Oxidase Activity In Native Gel Aft...supporting

confidence: 92%

Evaluation of Effect of Exogenous Molybdenum and Tungsten on Seed Germinability and on Symptoms of Virus Infection in Plants

Tokasheva

2024

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Crop production is the basis of agriculture in Kazakhstan. Soils in Kazakhstan suffer from molybdenum deficiency. Molybdenum deficiency in plants is characterized by the stunted growth, poor seed setting, fruit deformation and reduced plant resistance to diseases. Molybdenum catalyzes key steps in the metabolism of nitrogen, carbon and sulfur. It promotes the biosynthesis of the phytohormones of abscisic acid and indole-3-butyric acid. An increase in molybdenum concentration leads to an increase in aldehyde oxidase activity. Aldehyde oxidase generates hydrogen peroxide during viral infection; hydrogen peroxide triggers a hypersensitive response, strengthens cell walls and prevents the spread of viral infection. Molybdenum is biologically inactive until a special complex called molybdenum cofactor is formed. For the formation of the latter it is necessary for molybdenum to be in the state of molybdate anion. There are five known plant molybdoenzymes: aldehyde oxidase, sulfite oxidase, nitrate reductase, xanthine dehydrogenase and mitochondrial amidoxime resuctase. The aim of this work is to find the optimal concentration of molybdenum for aldehyde oxidase activation. The objectives of the conducted experiment are: -to apply an efficient and cost-effective method to replenish molybdenum deficiency in the experimental plant; -to demonstrate the effect of molybdenum on the development of virus infection of the infected plant. As a result, it was proved that with the increase of concentration from 0.1 mM to 1 mM, the activity of aldehyde oxidase increases, which contributes to the increase of seed germination. The optimal concentration for seed germination is 1 Mm molybdenum concentration. As the concentration of molybdenum increases, the resistance of adult plants to virus infection also increases. Thus, 1 mМ molybdenum concentration is optimal for seed germination and resistance to virus infection.

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“…2). The data obtained by us are consistent with earlier studies [28,29], according to which molybdenum is vital for the normal growth and development of plants.…”

Section: Determination Of Aldehyde Oxidase Activity In Native Gel Aft...supporting

confidence: 92%

Evaluation of Effect of Exogenous Molybdenum and Tungsten on Seed Germinability and on Symptoms of Virus Infection in Plants

Tokasheva

2024

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“…The speciation of tungsten in lettuce plants shows the presence of both the monomeric form and the poly-tungstates. X-ray absorption spectra (XAS) and X-ray absorption near edge structure (XANES) showed that tungsten was present in lettuce as poly-tungstate in the root portion, while in the shoots it was mainly present as a monomer [95].…”

Section: Plant Uptakementioning

confidence: 99%

The Dynamics of Tungsten in Soil: An Overview

Petruzzelli¹,

Pedron²

2021

Environments

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The increasing use of tungsten in the production of green energy in the aerospace and military industries, and in many other hi-tech applications, may increase the content of this element in soil. This overview examines some aspects of the behavior of tungsten in soil, such as the importance of characteristics of soils in relation to bioavailability processes, the chemical approaches to evaluate tungsten mobility in the soil environment and the importance of adsorption and desorption processes. Tungsten behavior depends on soil properties of which the most important is soil pH, which determines the solubility and polymerization of tungstate ions and the characteristics of the adsorbing soil surfaces. During the adsorption and desorption of tungsten, iron, and aluminum oxides, and hydroxides play a key role as they are the most important adsorbing surfaces for tungsten. The behavior of tungsten compounds in the soil determines the transfer of this element in plants and therefore in the food chain. Despite the growing importance of tungsten in everyday life, environmental regulations concerning soil do not take this element into consideration. The purpose of this review is also to provide some basic information that could be useful when considering tungsten in environmental legislation.

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“…Similar results were found in other studies, which also indicated that companion planting increased the microbial diversity of pepper continuous cropping soil and changed the soil microbial community structures. Companion planting systems play an important roles in the soil microbial diversity and community composition [ 53 ], and the reason may be due to the microbial interactions. In addition, the beta diversity showed that there were significant differences in microbial structures and compositions among different companion planting treatments ( Fig.…”

Section: Discussionmentioning

confidence: 99%

Influence of Companion Planting on Microbial Compositions and Their Symbiotic Network in Pepper Continuous Cropping Soil

Gao

Zhang

2023

J. Microbiol. Biotechnol.

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Continuous cropping obstacles have become a serious factor restricting sustainable development in modern agriculture, while companion planting is one of the most common and effective methods for solving this problem. Here, we monitored the effects of companion planting on soil fertility and the microbial community distribution pattern in pepper monoculture and companion plantings. Soil microbial communities were analyzed using high-throughput sequencing technology. Companion plants included garlic (T1), oat (T2), cabbage (T3), celery (T4), and white clover (T5). The results showed that compared with the monoculture system, companion planting significantly increased the activities of soil urease (except for T5) and sucrase, but decreased catalase activity. In addition, T2 significantly improved microbial diversity (Shannon index) while T1 resulted in a decrease of bacterial OTUs and an increase of fungal OTUs. Companion planting also significantly changed soil microbial community structures and compositions. Correlation analysis showed that soil enzyme activities were closely correlated with bacterial and fungal community structures. Moreover, the companion system weakened the complexity of microbial networks. These findings indicated that companion plants can provide nutrition to microbes and weaken the competition among them, which offers a theoretical basis and data for further research into methods for reducing continuous cropping obstacles in agriculture.

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Effect of tungsten-resistant bacteria on uptake of tungsten by lettuce and tungsten speciation in plants

Cited by 14 publications

References 39 publications

Evaluation of Effect of Exogenous Molybdenum and Tungsten on Seed Germinability and on Symptoms of Virus Infection in Plants

Evaluation of Effect of Exogenous Molybdenum and Tungsten on Seed Germinability and on Symptoms of Virus Infection in Plants

The Dynamics of Tungsten in Soil: An Overview

Influence of Companion Planting on Microbial Compositions and Their Symbiotic Network in Pepper Continuous Cropping Soil

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