Relationship between phosphatase active bacteria and phosphatase activities in forest soils

Hýsek, Josef; Šarapatka, B.

doi:10.1007/s003740050352

Cited by 11 publications

(8 citation statements)

References 12 publications

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“…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]. The activity of enzymes and the content of available forms of nutrients in soil profile samples usually decrease with depth.…”

Section: Discussionmentioning

confidence: 92%

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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Section: Discussionmentioning

confidence: 92%

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

2012

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“…Nevertheless, the existence of a strong bond of P with organic matters seems probable. Organic phosphorus, which is released by extracellular enzymes, accounts for a major part of its total content (Hýsek, Šarapatka 1998).…”

Section: Resultsmentioning

confidence: 99%

The effect of point application of fertilizerson the soil environment of spread line windrows in the Krušné hory Mts

Vavříček¹,

Pecháček²,

Jonák³

et al. 2010

J. For. Sci.

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The plateau of the Kru&scaron;né hory Mts. belongs to areas that suffered the greatest damage caused by air-pollution stresses in Europe. A part of cultural practices aimed at the reconstruction of local mountain forests was the inconsiderate use of bulldozer technologies for the preparation of sites for forest stand restoration. In the course of large-scale scarification the top-soil horizons were moved into line windrows, which caused marked degradation of the soil environment. The present revitalization of the soil environment is based on the principle of spreading these man-made windrows. Experimental plots were established in localities affected by scarification; the organomineral material from windrows was superimposed on them and subsequently they were reforested with Norway spruce (Picea abies [L.] Karst.). In 2005 the point application of fertilizer tablets of Silvamix type in three treatments and calcic dolomite was performed into the rhizosphere of plants. Before fertilization and after three years of the experiment soil samples were taken from the organomineral zone of the root balls of plants, and the condition of the soil environment on spread windrows and changes in pedochemical properties as a result of applied fertilization were evaluated. Three years after the windrow spreading the content of the majority of soil macrobiogenic elements (N, K, Ca, Mg) is at the level of medium-high to high reserves, and only the low phosphorus reserves pose a certain hazard. The organomineral substrate of spread windrows is a suitable growth environment for the root systems of target tree species. The proportion of humus substances is the most important factor in spread windrows from which the characteristics of the other parameters of soil are derived. Along with the higher proportion of humus substances in &Scaron;pičák locality significantly higher reserves of major macrobiogenic elements (N, P, K, Ca, Mg) were determined. The applied fertilizers of Silvamix type significantly increased the reserves of soil P, K, Ca, Mg and are a suitable means for the stimulation of spruce plantations in the restored environment of the Kru&scaron;né hory Mts. Silvamix Forte fertilizer tablets are the most complex fertilizer with the most balanced effects that significantly increases the reserves of soil P, Mg and K. This fertilizer has a high effect on an increase in the reserves of soil phosphorus that may be deficient in conditions of spread windrows. Silvamix R is the most efficient fertilizer to increase potassium reserves. A positive effect of calcic dolomite on an increase in Ca and Mg content was observed while no such effect on the other elements was recorded.  

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“…In H-horizon, the existence of phosphatase producers significantly depends on ammonification bacteria and the organic carbon content. In contrast to that, in A-horizons, where general inhibition of biological activity occurs, the activity of phosphatases remains high, as well as the abundance of their microbial producers (Hýsek, Šarapatka 1998).…”

Section: Introduction and Problem Definitionmentioning

confidence: 77%

Differences in acid phosphomonoesterase activity in forest soils of the Smrk Massive in the Moravskoslezské Beskydy Mts. (Czech Republic)

Bajer

Samec

Žárník³

2012

Beskydy

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Relationship between phosphatase active bacteria and phosphatase activities in forest soils

Cited by 11 publications

References 12 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

The effect of point application of fertilizerson the soil environment of spread line windrows in the Krušné hory Mts

Differences in acid phosphomonoesterase activity in forest soils of the Smrk Massive in the Moravskoslezské Beskydy Mts. (Czech Republic)

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