Zur Methodik der Bestimmung der Pankreasdiastase im Urin

Baumann, J.

doi:10.1007/bf01738516

Cited by 9 publications

(7 citation statements)

References 2 publications

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“…The three selected isolates were screened for 3 enzymes, i.e. dehydrogenase (TTC method) (Thalmann, 1968), Laccase (Bavendamm, 1928) and Cellulase (Sazci and Erenler, 1986) by agar plate based screening method. Based on the maximum multi-functional enzyme activities, one isolate (TSFAB1) was further screened for plant growth promoting traits.…”

Section: Methodsmentioning

confidence: 99%

Ignatzschineria cameli Strain KAUPDF7-A First Report on Plant Growth Promoting Rhizobacteria (PGPR) from the Post-flood Affected Soils of Kerala

Haseena¹,

Gopal²

2023

IJARe

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Background: Kerala flood in 2018 and 2019 had reduced the yield in many agricultural plots of Attapadi, Kerala, India. The scope of the study was to identify the potential native plant growth promoting rhizobacteria from the post flood-affected sites to rejuvenate the nutrient depleted soils. Methods: The present study was carried out in the department of agricultural microbiology, College of Agriculture, Kerala Agricultural University, Vellanikara, Kerala during 2020-2022. Bacteria were isolated from post flood-affected agricultural soils of Attapadi in Palakkad district of Kerala, India. Three morphologically distinct isolates were screened for cellulase, laccase and dehydrogenase to select the best bacterial isolate that could produce the multifunctional enzymes for rejuvenation of flood-affected soils. The isolate were also screened for plant growth promotion traits such as; indole acetic acid (IAA), phosphate solubilizing ability, nitrogen fixing ability and potassium solubilizing ability. Result: The most promising isolate was identified as Ignatzschineria cameli, which was found to be a high indole acetic acid producer along with phosphate and potassium solubilizing ability and revealed as the first report of PGPR from post flood-affected soils of Kerala.

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Section: Methodsmentioning

confidence: 99%

Ignatzschineria cameli Strain KAUPDF7-A First Report on Plant Growth Promoting Rhizobacteria (PGPR) from the Post-flood Affected Soils of Kerala

Haseena¹,

Gopal²

2023

IJARe

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“…Urease activity was determined by monitoring the ammonium release from a soil sample treated with urea as a substrate and incubated with borate buffer at pH 10.0 (Kandeler & Gerber, 1988). Triphenyltetrazolium chloride was used as a substrate (Thalmann, 1968), buffered with TRIS-HCl at pH 7.4 for dehydrogenase determination.…”

Section: Soil Biochemical Analysesmentioning

confidence: 99%

Long‐term organic management: Mitigating land use intensity drawbacks and enhancing soil microbial redundancy

Paliaga,

Muscarella,

Lucia

et al. 2024

J. Plant Nutr. Soil Sci.

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BackgroundSoils under organic farming systems exhibit better quality and higher biological activity than conventional systems. Manure addition, especially coupled with reduced or no tillage, significantly enhances microbial biomass and activity by improving soil physical properties and providing carbon (C) and nitrogen (N) sources. While several studies have examined the effects of transitioning from conventional to organic farming on soil chemistry and biochemistry, limited research has explored the influence of land use variations on soil fertility within long‐term organic farming systems.AimsTherefore, the aim of this study was to assess how three different land uses—pasture, vegetable crops, and orchard—affected soil fertility under a long‐term organic farming system.MethodsSoil samples were collected from the 0 to 15 cm layer of plots used for pasture, vegetable crops and orchard, being the latter cover cropped with legumes, and analyzed to determine chemical and biochemical soil parameters.ResultsContrary to expectations, high land use intensity (vegetable crops and orchard soils) resulted in increased soil organic C and total N, compared to low intensity (pasture). Such an increase was ascribed to farmyard manure addition that counteracted the negative impact of tillage. Consequently, microbial biomass C and activity also increased. The greatest availability of organic substrates favored bacteria, particularly gram‐positive strains, shaping the microbial community. However, despite changes of microbial biomass and of the main microbial groups, microbial activity was only slightly affected, suggesting high functional redundancy of microorganisms in long‐term organic farming soil.ConclusionsResults suggested that if land use intensification provides for organic supply, its negative impact on soil fertility may be mitigated.

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“…Soil pH and EC were determined using 1:5 soil to water extracts. Soil dehydrogenase (DAH) activity was determined based on the modified method described by Thalmann (1968) according to the transformation of triphenyl tetrazolium chloride (TTC) to triphenylformazone (TPF). Triphenyl tetrazolium chloride was used as a substrate, where the TTC solution (0.7%) was dissolved in a Tris buffer (0.1 M, pH 7.4).…”

Section: Analysis Of Soil Propertiesmentioning

confidence: 99%

Bioremediation of Crude Oil Contaminated Saline Soil Using a Bacterial Consortium and Different Carriers

Valizadeh,

Enayatizamir,

Nadian Ghomsheh

et al. 2024

JGR Biogeosciences

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Bioremediation of crude‐oil‐contaminated soils is critical to supporting soil ecosystem health and functioning. Here, to explore the potential for different remediation strategies to restore soil microbial functioning and enhance remediation, three strains of bacteria, Bacillus toyonensis, Bacillus sp. and Bacillus cereus, were inoculated to saline, crude oil‐contaminated soil collected from Azadegan Oil Field, Iran. Bacteria were added using different carriers, including corn biochar, humic acid, chitosan and kaolin, and free bacteria as a control. Changes in soil metal concentrations and residual crude oil were determined after 60 days of incubation. Soil respiration, microbial biomass, and enzyme (dehydrogenase and catalase) activities were measured. The carriers accompanying a bacterial consortium were more efficient than free bacteria in removing crude oil and heavy metals from soil, and they performed better in removing n‐alkanes with carbon chains of C12–24. The oil removal rate and metal immobilization efficiencies were greatest in soils with chitosan‐bacteria treatment, with removal of crude oil, Al, Pb, Sr, and Cr (93%, 63%, 37%, 54%, and 15%, respectively) greater than for soils with free cells without treatment (61%, 54%, 9%, 50%, and 3%, respectively). Soil electrical conductivity decreased after application of bacterial mixtures with and without carriers. The inoculation of bacteria and application of soil amendments increased soil microbial biomass carbon and the activity of catalase and dehydrogenase. Overall, our results indicated the greatest potential remediation was achieved by applying immobilized microorganisms in chitosan to accelerate the biodegradation of crude oil and the removal of heavy metals.

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Zur Methodik der Bestimmung der Pankreasdiastase im Urin

Cited by 9 publications

References 2 publications

Ignatzschineria cameli Strain KAUPDF7-A First Report on Plant Growth Promoting Rhizobacteria (PGPR) from the Post-flood Affected Soils of Kerala

Ignatzschineria cameli Strain KAUPDF7-A First Report on Plant Growth Promoting Rhizobacteria (PGPR) from the Post-flood Affected Soils of Kerala

Long‐term organic management: Mitigating land use intensity drawbacks and enhancing soil microbial redundancy

Bioremediation of Crude Oil Contaminated Saline Soil Using a Bacterial Consortium and Different Carriers

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