Spatial Distribution of Soil Phosphatase Activity Within a Riparian Forest1

Amador, José A.; Glucksman, Andrew M.; Lyons, Jodi B.; Görres, Josef H.

doi:10.1097/00010694-199711000-00005

Cited by 140 publications

(66 citation statements)

References 47 publications

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“…This is in contrast with some previous results, obtained by other authors [30,35,36]. However, they refer to different soils and plant species.…”

Section: Discussioncontrasting

confidence: 99%

“…Our observations are in accordance with findings of Amador et al [30] who reported that in riparian forest soils the distribution of phosphatase in moderately wet and poorly drained sites is determined mainly by organic matter and moisture. Close relationship between phosphomonoesterase activity and soil organic matter content is common and reported for many arable and forest soils [31,32].…”

Section: Discussionsupporting

confidence: 94%

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Soil acid phosphomonoesterase activity and phosphorus forms in ancient and post-agricultural black alder [Alnus glutinosa (L.) Gaertn.] woodlands

2012

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IntroductionSeveral phosphatases are involved in the hydrolysis of organic P compounds but the major role in the organic phosphorus mineralization process is attributed to the phosphomonoesterases. Acid phosphomonoesterase enzymes are the dominant group of enzymes involved in organic P mineralization in acidic soils [1]. These enzymes are produced mainly by plants and fungi and to a lesser degree by bacteria. The level of acid phosphomonoesterase secreted by plant roots has been shown to differ significantly between species, with N-fixing plants (legumes) secreting more phosphomonoesterase enzymes than cereals [2]. Plant available P (P AVAIL ) concentration also increases in soils underlying plantations of N-fixing trees [1], probably due to a higher P requirement by N-fixing plants [3]. The relationship between the available P concentration and phosphatase activity is usually very complex, since a positive, a negative or no relationship between these two parameters is possible [1,4]. There are studies which show that phosphatase activity is inversely proportional to the P AVAIL concentration [5], which confirms the thesis that the production and activity of soil phosphatases, especially the acid form, is connected with the demand of microorganisms and plants for P. Phosphatases are typical adaptive enzymes and their activity increases when plant available P concentration decreases. Kinetics studies indicate that orthophosphate ions, which are the product of the reaction conducted by the phosphatases, are competitive inhibitors of their activity in soil [6]. Other studies have found a significant positive correlation between phosphatase activity and available P concentration. Generally, a significant and positive relationship between phosphatase activity and P availability [7] is obtained in unfertilized soils or/ and those with a low content of nutrients, where P deficiency occurs. On the contrary, in soil where P fertilizers are applied and/ or in naturally fertile soil a significant but negative relationship between both of these parameters can be observed [4].It is a well known fact that trees can alter soil conditions, thus influencing ecological processes such as secondary succession and plant migration. Black alder [Alnus glutinosa (L.) Gaertn.] can have a great impact on its habitats and can form a symbiosis with Frankia and with ectomycorrhizal fungi. The actinobacteria provide the tree with N fixed from the atmosphere, whereas mycorrhizal fungi provide P and other nutrients [8], and on the other hand alders provide energy to microsymbionts [9]. Therefore, they play an important role AbstractBlack alder, an N-fixing tree is considered to accelerate the availability of phosphorus in soils due to the increased production of phosphatase enzymes, which are responsible for the P release from the litter. Acid phosphatase activity plays a pivotal role in organic P mineralization in forest soils and in making P available to plants. In order to check whether Alnus glutinosa stimulates acid phosphomonoesterase (P...

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“…This is in contrast with some previous results, obtained by other authors [30,35,36]. However, they refer to different soils and plant species.…”

Section: Discussioncontrasting

confidence: 99%

Section: Discussionsupporting

confidence: 94%

Soil acid phosphomonoesterase activity and phosphorus forms in ancient and post-agricultural black alder [Alnus glutinosa (L.) Gaertn.] woodlands

2012

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“…Flatman and Yfantis (1984) suggested a soil sample distance from one fourth to one half of the range. The range of some properties have been found to markedly differ (Amador et al 1997;Gaston et al 2001;Stenger et al 2002;Brodský et al 2004;Aşkin and Kizilkaya 2006). Significantly higher ranges values were observed for organic C content than for arylsuphatase and phosphates activities by Bergstrom et al (1998).…”

Section: Discussionmentioning

confidence: 92%

Field-scale variability of topsoil dehydrogenase and cellulase activities as affected by variability of some physico-chemical properties

Piotrowska

Długosz

Namysłowska-Wilczyńska³

et al. 2010

Biol Fertil Soils

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We have studied spatial field-scale variability of soil dehydrogenase (DH) and cellulase activities (CEL) and their relationship with variability of some physico-chemical properties at the surface horizon of the agricultural field. Soil samples were collected at 50 points from the upper 20 cm of soil. The activity of DH ranged between 0.77 and 1.5 μM TPP·g −1 ·h −1 while CEL activity ranged from 0.8 toConcentrations of C ORG and TN varied from 8.5 to 31.7 g·kg −1 and from 0.94 to 3.56 g·kg −1 , respectively. The soil data showed that spatial variability and semivariograms describe spherical and linear models with the nugget effect (DH, CEL, C ORG and TN). Dehydrogenase activity was in the strong variability class, while cellulase activity was situated in the week variability class. Both C ORG and TN concentrations and pH KCl values were strongly spatially dependent with the percentage of total variance (sill) presents as nugget variance ranging from 8.9% to 16.1%. Kriged maps displayed the lowest values of CEL activities in the north-east of the area, while the south area showed the highest CEL activity. The DH activity values were irregularly distributed in the surface horizon of the studied soil and this behaviour did not correspond with the spatial distribution of other properties.

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“…Phosphatase activity increased total P (TP) concentrations in P-limited soils (Amador et al, 1997;Chen et al, 2003), and served as a predictor of OM degradation in wetland ecosystems (Newman and Reddy, 1992;Amador et al, 1997;Chen et al, 2003). Thus, increasing P content reduced phosphatase activities…”

Section: Phosphorusmentioning

confidence: 99%

A review of factors that regulate extracellular enzyme activity in wetland soils

Kim¹

2015

The Korean Journal of Microbiology

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Wetlands constitute a transitional zone between terrestrial and aquatic ecosystems and have unique characteristics such as frequent inundation, inflow of nutrients from terrestrial ecosystems, presence of plants adapted to grow in water, and soil that is occasionally oxygen deficient due to saturation. These characteristics and the presence of vegetation determine physical and chemical properties that affect decomposition rates of organic matter (OM). Decomposition of OM is associated with activities of various extracellular enzymes (EE) produced by bacteria and fungi. Extracellular enzymes convert macromolecules to simple compounds such as labile organic carbon (C), nitrogen (N), phosphorus (P), and sulfur (S) that can be easily taken up by microbes and plants. Therefore, the enzymatic approach is helpful to understand the decomposition rates of OM and nutrient cycling in wetland soils. This paper reviews the physical and biogeochemical factors that regulate extracellular enzyme activities (EEa) in wetland soils, including those of β-glucosidase, β-N-acetylglucosaminidase, phosphatase, arylsulfatase, and phenol oxidase that decompose organic matter and release C, N, P, and S nutrients for microbial and plant growths. Effects of pH, water table, and particle size of OM on EEa were not significantly different among sites, whereas the influence of temperature on EEa varied depending on microbial acclimation to extreme temperatures. Addition of C, N, or P affected EEa differently depending on the nutrient state, C:N ratio, limiting factors, and types of enzymes of wetland soils. Substrate quality influenced EEa more significantly than did other factors. Also, drainage of wetland and increased temperature due to global climate change can stimulate phenol oxidase activity, and anthropogenic N deposition can enhance the hydrolytic EEa; these effects increase OM decomposition rates and emissions of CO2 and CH4 from wetland systems. The researches on the relationship between microbial structures and EE functions, and environmental factors controlling EEa can be helpful to manipulate wetland ecosystems for treating pollutants and to monitor wetland ecosystem services.Key words: biogeochemistry, organic matter decomposition, wetland ecosystem *For correspondence. E-mail: kharyun@postech.ac.kr; Tel.: Wetlands cover ~6% of the land surface and are among the most productive ecosystems in the world (Mitsch and Gosselink, 1993). Wetland soils have unique characteristics such as EEa is affected by physical factors including temperature (Fenner et al., 2005a), pH (Kang and Freeman, 1999Williams et al., 2000), water table (Freeman et al., 1996 show EEa that does not respond or that decreases as temperature increases because fungi are more adapted to low temperature than are bacteria (Pietlkâinen et al., 2005). Thus, the responding of EEa to increasing temperature can be more apparent in the hydrolytic enzymes than lignin decomposing enzymes.The response of EEa to increasing temperature is also affected by site characte...

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Spatial Distribution of Soil Phosphatase Activity Within a Riparian Forest1

Cited by 140 publications

References 47 publications

Soil acid phosphomonoesterase activity and phosphorus forms in ancient and post-agricultural black alder [Alnus glutinosa (L.) Gaertn.] woodlands

Soil acid phosphomonoesterase activity and phosphorus forms in ancient and post-agricultural black alder [Alnus glutinosa (L.) Gaertn.] woodlands

Field-scale variability of topsoil dehydrogenase and cellulase activities as affected by variability of some physico-chemical properties

A review of factors that regulate extracellular enzyme activity in wetland soils

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