Isotope selective activation: a new insight into the catalytic activity of urease

Maithani, Sanchi; Pal, Mithun; Maity, Abhijit; Pradhan, Manik

doi:10.1039/c7ra05489k

Cited by 11 publications

(3 citation statements)

References 15 publications

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“…Soil invertase plays a vital role in C decomposition, transformation, and soil bio-respiration [ 15 ]. Urease converts organic N to available N by hydrolyzing urea [ 16 ]. In addition, alkaline phosphatase plays an important role in organic phosphorus (P) mineralization and plant P nutrition, especially in calcareous soil with limited P [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of Different Land Use Types and Soil Depths on Soil Mineral Elements, Soil Enzyme Activity, and Fungal Community in Karst Area of Southwest China

Gong

Hou

Liu

et al. 2022

IJERPH

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The current research was aimed to study the effects of different land use types (LUT) and soil depth (SD) on soil enzyme activity, metal content, and soil fungi in the karst area. Soil samples with depths of 0–20 cm and 20–40 cm were collected from different land types, including grassland, forest, Zanthoxylum planispinum land, Hylocereus spp. land and Zea mays land. The metal content and enzyme activity of the samples were determined, and the soil fungi were sequenced. The results showed that LUT had a significant effect on the contents of soil K, Mg, Fe, Cu and Cr; LUT and SD significantly affected the activities of invertase, urease, alkaline phosphatase and catalase. In addition, Shannon and Chao1 index of soil fungal community was affected by different land use types and soil depths. Ascomycota, Basidiomycota and Mortierellomycota were the dominant phyla at 0–20 cm and 20–40 cm soil depths in five different land types. Land use led to significant changes in soil fungal structure, while soil depth had no significant effect on soil fungal structure, probably because the small-scale environmental changes in karst areas were not the dominant factor in changing the structure of fungal communities. Additionally, metal element content and enzyme activity were related to different soil fungal communities. In conclusion, soil mineral elements content, enzyme activity, and soil fungal community in the karst area were strongly affected by land use types and soil depths. This study provides a theoretical basis for rational land use and ecological restoration in karst areas.

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Section: Introductionmentioning

confidence: 99%

Effects of Different Land Use Types and Soil Depths on Soil Mineral Elements, Soil Enzyme Activity, and Fungal Community in Karst Area of Southwest China

Gong

Hou

Liu

et al. 2022

IJERPH

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“…Enzymes present in the cytosol, in association with cellular debris, likely play an essential role as a source of carbon, nitrogen, and reducing equivalents for the growth of microbial communities. Among the main soil enzymes involved in nutrient cycling are: (i) urease, which converts urea to ammonia and then to nitrite, thus facilitating the plant’s easy access to nitrate ions ( Maithani et al, 2017 ), (ii) phosphatase, which plays a crucial role in phosphate solubilization and the release of inorganic phosphate ( Satyaprakash et al, 2017 ), and (iii) invertase, which plays an active role in the carbon cycle by catalyzing the hydrolysis of sucrose into glucose and fructose ( Wang et al, 2013 ).…”

Section: Roles Of Soil Enzymes In the Rhizosphere And Their Contribut...mentioning

confidence: 99%

Promoting sustainable agriculture by exploiting plant growth-promoting rhizobacteria (PGPR) to improve maize and cowpea crops

Agbodjato,

Babalola

2024

PeerJ

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Maize and cowpea are among the staple foods most consumed by most of the African population, and are of significant importance in food security, crop diversification, biodiversity preservation, and livelihoods. In order to satisfy the growing demand for agricultural products, fertilizers and pesticides have been extensively used to increase yields and protect plants against pathogens. However, the excessive use of these chemicals has harmful consequences on the environment and also on public health. These include soil acidification, loss of biodiversity, groundwater pollution, reduced soil fertility, contamination of crops by heavy metals, etc. Therefore, essential to find alternatives to promote sustainable agriculture and ensure the food and well-being of the people. Among these alternatives, agricultural techniques that offer sustainable, environmentally friendly solutions that reduce or eliminate the excessive use of agricultural inputs are increasingly attracting the attention of researchers. One such alternative is the use of beneficial soil microorganisms such as plant growth-promoting rhizobacteria (PGPR). PGPR provides a variety of ecological services and can play an essential role as crop yield enhancers and biological control agents. They can promote root development in plants, increasing their capacity to absorb water and nutrients from the soil, increase stress tolerance, reduce disease and promote root development. Previous research has highlighted the benefits of using PGPRs to increase agricultural productivity. A thorough understanding of the mechanisms of action of PGPRs and their exploitation as biofertilizers would present a promising prospect for increasing agricultural production, particularly in maize and cowpea, and for ensuring sustainable and prosperous agriculture, while contributing to food security and reducing the impact of chemical fertilizers and pesticides on the environment. Looking ahead, PGPR research should continue to deepen our understanding of these microorganisms and their impact on crops, with a view to constantly improving sustainable agricultural practices. On the other hand, farmers and agricultural industry players need to be made aware of the benefits of PGPRs and encouraged to adopt them to promote sustainable agricultural practices.

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“…Urea hydrolysis is a complicated process influenced by multiple factors. Two steps are the most important when urea undergoes transformation: the first step is the urea transformation into carbonate and ammonia in the presence of urease enzyme; in the second step, ammonia is converted to nitrite and then to nitrate ions which are readily available for the direct use of plant (Maithani et al, 2017) [14] . Phosphatase enzyme plays an important role in phosphate solubilization and release of inorganic phosphate and provides phosphorus nutrition to the plants (Beheraa et al 2017) [1] .…”

Section: Introductionmentioning

confidence: 99%

Effect of varying fertilizer doses and soil test crop response based integrated plant nutrient system on enzyme activity in Bahour soil series of Puducherry

Vr¹,

U²,

Sankar³

et al. 2020

Pharma Innovation

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An incubation experiment was conducted during Kharif, 2018 on bahour soil series of puducherry to study the influence of various fertilizer doses and Soil Test Crop Response (STCR) based Integrated Plant Nutrient System (IPNS) on soil enzymatic activity. The incubation experiment was carried out with ten treatments and three replications. The soil samples were drawn at 0 th , 40 th and 80 th day of incubation and subjected for urease, phosphatase and dehydrogenase enzyme analysis. The results revealed that the application of STCR + IPNS -180 q ha -1 treatment has improved the activities of Urease (12.08 µg NH4-N g -1 h -1 ), Phosphatase (13.65µg PNP g -1 h -1 ) and dehydrogenase (2.48µg TPF g -1 day -1 ). All the three enzymes activities were increased from the Initial day of incubation to 40 th day and later showed decrease at final days.

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Isotope selective activation: a new insight into the catalytic activity of urease

Abstract: Isotope selective enzymatic activity of urease.

Cited by 11 publications

References 15 publications

Effects of Different Land Use Types and Soil Depths on Soil Mineral Elements, Soil Enzyme Activity, and Fungal Community in Karst Area of Southwest China

Effects of Different Land Use Types and Soil Depths on Soil Mineral Elements, Soil Enzyme Activity, and Fungal Community in Karst Area of Southwest China

Promoting sustainable agriculture by exploiting plant growth-promoting rhizobacteria (PGPR) to improve maize and cowpea crops

Effect of varying fertilizer doses and soil test crop response based integrated plant nutrient system on enzyme activity in Bahour soil series of Puducherry

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