Temporal and soil depth-related variation in soil enzyme activities and in root growth of red clover (Trifolium pratense) and timothy (Phleum pratense) in the field

Niemi, R. Maarit; Vepsäläinen, Milja; Wallenius, Kaisa; Simpanen, Suvi; Alakukku, Laura; Pietola, Liisa

doi:10.1016/j.apsoil.2005.02.003

Cited by 53 publications

(31 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…2c) (p \ 0.05). This is consistent with previous studies that enzyme activities decrease with soil depth (Niemi et al 2005). Results indicated that the upper 15 cm of the CW medium was crucial for contaminant decomposition (Kong et al 2009).…”

Section: Resultssupporting

confidence: 92%

“…Because of heavy loading and continuous saturation of filtration bed anoxic/anaerobic processes prevail while aerobic processes are restricted to small zaones adjacent to roots and rhizomes (radial oxygen loss) and to thin surface layer where oxygen diffusion from the atmosphere may occur (Vymazal and Krǒpfelová 2008). Plant roots are crucial for wetland plants growing in an anaerobic soil, and they release oxygen into the medium, which is favorable for aerobic microbes and for contaminant removal (Niemi et al 2005). Nitrogen and phosphorus may become limiting factors to the growth of the microbial biomass when carbon is present in excess enzyme activity will rapidly release labile carbon from it and so provide carbon to excess (Shackle et al 2000).…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Correlation Among Soil Enzyme Activities, Root Enzyme Activities, and Contaminant Removal in Two-Stage In Situ Constructed Wetlands Purifying Domestic Wastewater

Chu

et al. 2016

Bull Environ Contam Toxicol

View full text Add to dashboard Cite

Two-stage in situ wetlands (two vertical flow constructed wetlands in parallel and a horizontal flow constructed wetland) were constructed for studying domestic wastewater purification and the correlations between contaminant removal and plant and soil enzyme activities. Results indicated the removal efficiency of NH4 (+) and NO3 (-) were significantly correlated with both urease and protease activity, and the removal of total phosphorus was significantly correlated with phosphatase activity. Chemical oxygen demand removal was not correlated with enzyme activity in constructed wetlands. Plant root enzyme (urease, phosphatase, protease and cellulose) activity correlation was apparent with all contaminant removal in the two vertical flow constructed wetlands. However, the correlation between the plant root enzyme activity and contaminant removal was poor in horizontal flow constructed wetlands. Results indicated that plant roots clearly played a role in the removal of contaminants.

show abstract

Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Correlation Among Soil Enzyme Activities, Root Enzyme Activities, and Contaminant Removal in Two-Stage In Situ Constructed Wetlands Purifying Domestic Wastewater

Chu

et al. 2016

Bull Environ Contam Toxicol

View full text Add to dashboard Cite

show abstract

“…The grass-reference was a permanent, unfertilized grass sward for which the only management was occasional mowing. Therefore, the effects of soil management and changes in the crop roots on soil enzyme activities (described by several authors such as Niemi et al [24] or Vepsäläinen et al [25]) were avoided or minimized, and thus the interpretation of the BGa data had less explanatory variables. Therefore, Equations (1) and (2) could indicate some causal and negative relationship between rainfall and BGa.…”

Section: Temporal Variability Of β-Glucosidase Activity and Rainfallmentioning

confidence: 99%

Influence of Tillage Practices, Organic Manures and Extrinsic Factors on β-Glucosidase Activity: The Final Step of Cellulose Hydrolysis

2018

View full text Add to dashboard Cite

β-glucosidase is a key enzyme in the C-cycle, and its activity is strongly influenced by soil management practices and by extrinsic factors such as weather conditions. However, the variability of β-glucosidase activity (BGa) over time and how this variability is affected by tillage and organic fertilization remain poorly elucidated. We investigated how contrasting tillage practices (zero, minimum, conventional or deep) and organic amendment application (dairy cattle slurry or green compost) govern BGa. Strong correlations (r = −0.98; p < 0.001) were found between BGa and preceding cumulative rainfall for soil without crops. Under cropped soil conditions, BGa was 53% greater under zero and minimum tillage than under ploughed treatments (p < 0.05) six years after their applications. These differences could be explained by associated effects of tillage on organic matter content, electrical conductivity and water stable aggregates. The separated organic residue experiment showed that BGa was 36% greater in soil amended with slurry than in soil amended with compost (p < 0.05) five years after their applications. Finally, the response ratio of BGa was calculated in order to study the effect size of each treatment at each sampling period. This simple strategy mitigated the variation on BGa measurements between two sampling periods, and may be applied in future studies to improve the interpretation of other potential soil quality indicators that are sensitive to seasonal changes.

show abstract

“…Asmar and GisselNielsen (1997) reported that in barley, most of the extracellular root APM activity to be associated with roots, that is 89.5-97.5 %, while 1-5 % was associated with rhizoplane microorganisms. Concerning soil APM, the highest activity was reported in the upper humus layer decreasing with soil depth (Taylor et al, 2002;Wittmann et al, 2004;Niemi et al, 2005.). APM in soil may also be infl uenced by plant coverage and its density due to support of microbial activity via plant roots (Dinesh et al, 2004).…”

Section: Resultsmentioning

confidence: 99%

Proportion of root-derived acid phosphomonoesterase in total soil acid phosphomonoesterase in different forests

Holík¹,

Dundek²,

Formánek³

et al. 2014

Acta Univ. Agric. Silvic. Mendelianae Brun.

View full text Add to dashboard Cite

HOLÍK, L., DUNDEK, P., FORMÁNEK, P., REJŠEK, K., VRANOVÁ, V.: Proportion of root-derived acid phosphomonoesterase in total soil acid phosphomonoesterase in diff erent forests. Acta univ. agric. et silvic. Mendel. Brun., 2011, LIX, No. 3, pp. 55-58 Enzyme acid phosphomonoesterase (APM) plays an important role in phosphorus mineralization in diff erent type of terrestrial ecosystems. This enzyme is of great agronomic signifi cance because it hydrolyses organic phosphorus to diff erent forms of inorganic phosphorus which are assimilable by plants. APM may also indicate changes in the quantity and quality of phosphorylated substrates in soil and is a good indicator of its biological state as well as presence of pollutants. APM may be produced by plant roots and soil microorganisms and both of these sources may play diff erent role in phosphorus mineralization in diff erent ecosystems. The aim of this work was determine acid phosphomonoesterase (APM) activity location in soil of diff erent forest ecosystems. The APM activity location determination was performed on the basis of root-derived and soil-derived APM and expression of proportion of those root-derived in total soil APM up to 13 cm depth. The results of this preliminary study showed that root-derived APM formed 21-34 % of total soil APM in pine and oak forest.acid phosphomonoesterase, soil, forests, roots Extracellular phosphomonoesterases (orthophosphoric monoester phosphohydrolases) catalyze hydrolysis of a variety of organic phosphomonoesters and are therefore important in soil organic P mineralization and plant nutrition. Acid phosphomonoesterase (APM) in soil is located in diff erent compartments. These include soil and its diff erent fractions, plant roots and mycorrhizal fungi (Burns et al

show abstract

Temporal and soil depth-related variation in soil enzyme activities and in root growth of red clover (Trifolium pratense) and timothy (Phleum pratense) in the field

Cited by 53 publications

References 16 publications

Correlation Among Soil Enzyme Activities, Root Enzyme Activities, and Contaminant Removal in Two-Stage In Situ Constructed Wetlands Purifying Domestic Wastewater

Correlation Among Soil Enzyme Activities, Root Enzyme Activities, and Contaminant Removal in Two-Stage In Situ Constructed Wetlands Purifying Domestic Wastewater

Influence of Tillage Practices, Organic Manures and Extrinsic Factors on β-Glucosidase Activity: The Final Step of Cellulose Hydrolysis

Proportion of root-derived acid phosphomonoesterase in total soil acid phosphomonoesterase in different forests

Contact Info

Product

Resources

About