Responses of soil acid phosphatase and beta-glucosidase to nitrogen and phosphorus addition in two subtropical forests in southern China

Zheng, Mianhai; Huang, Juan; Chen, Hao; Hui, Wu; Mo, Jiangming

doi:10.1016/j.ejsobi.2015.03.010

Cited by 67 publications

(41 citation statements)

References 66 publications

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“…The third hypothesis, that P additions caused the V max and the catalytic efficiency to decrease, was only partly supported in the Ppoor subtropical forests, but was not supported in the P-rich temperate forests. Additions of inorganic P resulted in a decrease in V max in the subtropical forests, which was consistent with the conclusions of the meta-analysis (Marklein & Houlton, 2012), conceptual models (Cusack, Silver, Torn, Burton, & Firestone, 2011;Houlton et al, 2008), and experimental results (Wang, Wang, & Liu, 2008;Zheng, Huang, Chen, Wang, & Mo, 2015). Our results from correlation analyses confirmed that the V max was inhibited by the end-product of soil available P in P-poor soils.…”

Section: Responses Of Phosphatase Kinetic Parameters To Nitrogen Ansupporting

confidence: 88%

Contrasting responses of phosphatase kinetic parameters to nitrogen and phosphorus additions in forest soils

et al. 2017

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Abstract1. Global changes include increasing nitrogen (N) and phosphorus (P) deposition, which affect microbial nutrient demand and biogeochemical cycles. The responses of P-mineralizing enzymes to these global change components are poorly defined and are not specified in forest soils differing in P content.2. We chose one site in a P-rich and two sites in P-poor forests and established sixteen 20 × 20 m plots at each site. Control, either N only, P only, or combined N and P, were randomly distributed through each forest site with four replicates. We investigated the effects of N and P additions over 4 years on the phosphomonoesterase potential activity (V max ), its half-saturation constant (K m ) and its catalytic efficiency (V max /K m ).3. Without N and P additions, the enzyme kinetic parameters V max , K m and V max /K m were higher in P-rich than in P-poor forest soils. These parameters increased with soil pH, SOC, TN and TP contents increased.4. Remarkably, P additions caused the V max and K m to increase in P-rich soils, but had no effect on V max /K m . P additions to P-poor soils resulted in a decrease in the V max /K m via the inhibitory effects of inorganic P on the V max . N additions had no effect on the V max /K m in P-rich and P-poor soils because of the similar increases in the V max and K m . The effects of combined N and P and P only additions to P-poor soils on the V max and K m were similar, but were stronger than the effects of N only or P only additions on the P-rich soils.5. Phosphatase kinetic parameters were positively related to the availability of N and P in P-rich soils, but inorganic P inhibited phosphatase activity and caused a decrease in the catalytic efficiency in P-poor soils. More microbial community groups could contribute to the secretion of a broader spectrum of iso-enzymes under combined additions of N and P in P-rich soils. We conclude contrast responses of phosphatase kinetics to P and N inputs in P-rich and P-poor forest soils, while long-term N deposition might mitigate P limitation by increasing phosphatase secretion.

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Section: Responses Of Phosphatase Kinetic Parameters To Nitrogen Ansupporting

confidence: 88%

Contrasting responses of phosphatase kinetic parameters to nitrogen and phosphorus additions in forest soils

et al. 2017

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“…Differences in microbial communities, as represented by phospholipid-derived fatty acids (PLFAs), have also been reported among adjacent maple, beech, hornbeam, lime, and ash forests in Germany (Scheibe et al, 2015) and among forests of four conifer species in coastal British Columbia (Grayston and Prescott, 2005). From a functional perspective, both soil acid phosphatase and β-glucosidase activities were higher in a monsoon evergreen broadleaf forest than in a Masson pine forest (Zheng et al, 2015). However, vegetation type does not always have an effect on the composition of the soil microbial community.…”

Section: Introductionmentioning

confidence: 95%

“…There is increasing evidence that vegetation types influence the structure and functions of the soil microbial community (Zheng et al, 2015). Differences in microbial communities, as represented by phospholipid-derived fatty acids (PLFAs), have also been reported among adjacent maple, beech, hornbeam, lime, and ash forests in Germany (Scheibe et al, 2015) and among forests of four conifer species in coastal British Columbia (Grayston and Prescott, 2005).…”

Section: Introductionmentioning

confidence: 99%

Divergence of dominant factors in soil microbial communities and functions in forest ecosystems along a climatic gradient

Zhang

et al. 2018

Biogeosciences

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“…From a functional perspective, both soil acid phosphatase and b-glucosidase activities were higher in a monsoon evergreen broadleaf forest than in a Masson pine forest (Zheng et al, 2015).…”

Section: Introductionmentioning

confidence: 96%

“…Vegetation composition may alter soil physicochemical properties by changing the quantity and quality of plant litter, which further influence microbial community composition and function (Ushio et al, 2010;Deng et al, 2015). There is increasing evidence that vegetation types influence the structure and functions of the soil microbial community (Yin et al, 2014;Zheng et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Divergence of dominant factors on soil microbial communities and functions in forest ecosystems along a climatic gradient

Xu¹,

Yu²,

Zhang³

et al. 2017

Preprint

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<p><strong>Abstract.</strong> Soil microorganisms play an important role in regulating nutrient cycling in terrestrial ecosystems. Most of the studies conducted thus far have been confined to a single forest biome or have focused on one or two controlling factors, and few have dealt with the integrated effects of climate, vegetation, and soil substrate availability on soil microbial communities and functions among different forests. In this study, we used phospholipid-derived fatty acid (PLFA) analysis to investigate soil microbial community structure, and extracellular enzymatic activities to evaluate the functional potential of soil microbes of different types of forests in three different climatic zones along the North-South transect in eastern China (NSTEC). In general, soil enzyme activities and microbial PLFAs were higher in primary forests than in secondary forests in temperate and warm temperate regions. In the subtropical region, soil enzyme activities were lower in the primary forests than in the secondary forests and microbial PLFAs did not differ significantly between primary and secondary forests. The microbial PLFAs and enzyme activities differed considerably between broadleaved and coniferous forests. Different species of coniferous trees may cause variations in soil microbial PLFAs and enzyme activities. Both climate and forest type had significant effects on soil enzyme activities and microbial communities with a considerable interactive effect. Litter nutrients made an important contribution to variations in the soil microbial communities and enzyme activities in temperate zones, while soil micro-climate and nutrients were the main controls on the soil microbial community structure and enzymatic activities in warm temperate and subtropical zones. Our results indicate that the main controls on soil microbes and functions vary across forest ecosystems in different climatic zones, and that the effects of soil moisture content, soil temperature, and the soil N/P ratio were considerable. This information will add value to modeling of microbial processes and will contribute to carbon cycling in large-scale carbon models.</p>

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Responses of soil acid phosphatase and beta-glucosidase to nitrogen and phosphorus addition in two subtropical forests in southern China

Cited by 67 publications

References 66 publications

Contrasting responses of phosphatase kinetic parameters to nitrogen and phosphorus additions in forest soils

Contrasting responses of phosphatase kinetic parameters to nitrogen and phosphorus additions in forest soils

Divergence of dominant factors in soil microbial communities and functions in forest ecosystems along a climatic gradient

Divergence of dominant factors on soil microbial communities and functions in forest ecosystems along a climatic gradient

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