Microbial solubilization of silicon and phosphorus from bedrock in relation to abundance of phosphorus-solubilizing bacteria in temperate forest soils

Pastore, Giovanni; Kernchen, Sarmite; Spohn, Marie

doi:10.1016/j.soilbio.2020.108050

Cited by 49 publications

(26 citation statements)

References 85 publications

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“…Promoting efficient utilization of P is important in agriculture due to rapidly increasing cost of fertilizers and big concerns of environmental protection (Hu et al, 2018). The bacteria possessing P utilization capacity are widespread in the rhizosphere soils of different crops (Maougal et al, 2014;Hanif et al, 2015;Wan et al, 2020b) and promise great application potentials in agriculture because PSB are responsible for P availability and facilitate P uptake by crops (Richardson et al, 2011;Bononi et al, 2020;Pastore et al, 2020). However, the activity and abundance of PSB are subjected to the fertilization treatment and phosphorus fractions (Luo et al, 2017;Hu et al, 2018;Wei et al, 2019;Wan et al, 2020a).…”

Section: Discussionmentioning

confidence: 99%

Phosphate-Solubilizing Bacterium Acinetobacter pittii gp-1 Affects Rhizosphere Bacterial Community to Alleviate Soil Phosphorus Limitation for Growth of Soybean (Glycine max)

Wan

2021

Front. Microbiol.

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Phosphorus (P) availability is a major restriction to crop production, and phosphate-solubilizing bacteria (PSBs) in soils are responsible for P turnover. However, it remains unknown whether the application of PSB can facilitate both inorganic and organic P transformation and enhance function of plant rhizosphere bacteria. In this study, we applied Illumina MiSeq sequencing, plate-colony counting, quantitative PCR, and multiple ecological analyses. We found that the inoculation of PSB Acinetobacter pittii gp-1 significantly promoted the growth of soybean represented by better vegetation properties (e.g., plant height and root P) and increased activities of phosphatase (4.20–9.72 μg/g/h) and phytase (0.69–1.53 μmol/g/day) as well as content of indole acetic acid (5.80–40.35 μg/g/h). Additionally, the application of strain A. pittii gp-1 significantly increased abundances of both inorganic and organic P-cycling-related genes (i.e., phoD, bpp, gcd, and pstS). More importantly, the application of A. pittii gp-1 could increase the function represented by P-cycling-related enzymes (e.g., phosphotransferase) of rhizosphere bacterial community based on functional profiling. To our knowledge, this is the first report that the application of PSB A. pittii promotes inorganic and organic P utilization and increases the function of rhizosphere bacterial community. Therefore, the PSB A. pittii gp-1 could be a good candidate for the promotion of soybean growth.

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Section: Discussionmentioning

confidence: 99%

Phosphate-Solubilizing Bacterium Acinetobacter pittii gp-1 Affects Rhizosphere Bacterial Community to Alleviate Soil Phosphorus Limitation for Growth of Soybean (Glycine max)

Wan

2021

Front. Microbiol.

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“…A number of previous studies in the LP and HP forests clearly demonstrated that soil microbes and young beech trees in LP soil are limited by low P availabilities (Bergkemper et al 2016;Lang et al 2017;Zavišić et al 2018;Pastore et al 2020). Experimental studies with young trees in HP and LP soil showed that negative effects of P limitation such as the reduction in photosynthesis were rescued by P fertilization, while the photosynthesis of beech trees in HP soil was unaffected by P addition (Yang et al 2016;Zavišić et al 2018).…”

Section: P and N Inputs Affect P Nutrition Of Beechmentioning

confidence: 95%

Impact of nitrogen and phosphorus addition on resident soil and root mycobiomes in beech forests

Clausing

Likulunga

Janz

et al. 2020

Preprint

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In forest soils, the pools of N and P available for microbes and plants are strongly dependent on soil properties. Here, we conducted a P and N fertilization experiment to disentangle the effects of nutrient availability on soil-residing, root-associated and ectomycorrhizal fungi in beech (Fagus sylvativa) forests differing in P availability. We tested the hypothesis that in P-poor forests, P fertilization leads to enhanced fungal diversity in soil and roots, resulting in enhanced P nutrition of beech and that N fertilization aggravates P shortage, shifting the fungal communities towards nitrophilic species. In response to fertilizer treatments (1x 50 kg ha−1 P, 5x 30 kg ha−1 N within 2 years), the labile P fractions increased in soil and roots, regardless of plant-available P in soil. Root total P decreased in response to N fertilization and root total P increased at the low P site in response to P addition. The relative abundances of ectomycorrhizal fungi, but not their species richness, increased in response to P or N addition in comparison with that of saprotrophic fungi. While some fungal orders (Trechisporales, Atheliales, Cantharellales) were moderately decreased in response to fertilizer treatments, Boletales increased in response to P and Russulaes to N addition. N or P fertilization resulted in functional trade-off, shifting away from saprotrophic towards symbiotrophic potential. Our results suggest that chronic exposure of forest ecosystems to increased nutrient inputs may overcome the resistance of the resident mycobiome structures resulting in nutritional imbalance and loss of forest ecosystem services.

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“…Our results are consistent with these findings. Several previous studies in LP and HP forests clearly demonstrated that soil microbes and young beech trees in LP soil are limited by low P availabilities (Bergkemper et al 2016;Lang et al 2017;Pastore et al 2020;Zavišić et al 2018). Experimental studies with young trees in HP and LP soil showed that negative effects of P limitation, such as a reduction in photosynthesis were mitigated by P fertilization, while the photosynthesis of beech trees in HP soil was unaffected by P addition (Zavišić et al 2018).…”

Section: P and N Inputs Affect P Nutrition Of Beechmentioning

confidence: 95%

Impact of nitrogen and phosphorus addition on resident soil and root mycobiomes in beech forests

et al. 2021

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N and P are essential macronutrients for all organisms. How shifts in the availability of N or P affect fungal communities in temperate forests is not well understood. Here, we conducted a factorial P × N fertilization experiment to disentangle the effects of nutrient availability on soil-residing, root-associated, and ectomycorrhizal fungi in beech (Fagus sylvatica) forests differing in P availability. We tested the hypotheses that in P-poor forests, P fertilization leads to enhanced fungal diversity in soil and roots, resulting in enhanced P nutrition of beech, and that N fertilization aggravates P shortages, shifting the fungal communities toward nitrophilic species. In response to fertilizer treatments (1 × 50 kg ha−1 P and 5 × 30 kg ha−1 N within 2 years), the labile P fractions increased in soil and roots, regardless of plant-available P in soil. Root total P decreased in response to N fertilization and root total P increased in response to P addition at the low P site. Ectomycorrhizal species richness was unaffected by fertilizer treatments, but the relative abundances of ectomycorrhizal fungi increased in response to P or N addition. At the taxon level, fungal assemblages were unaffected by fertilizer treatments, but at the order level, different response patterns for saprotrophic fungi among soil and ectomycorrhizal fungi on roots were found. Boletales increased in response to P, and Russulales decreased under N + P addition. Our results suggest that trait conservatism in related species afforded resistance of the resident mycobiome composition to nutritional imbalances.

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Microbial solubilization of silicon and phosphorus from bedrock in relation to abundance of phosphorus-solubilizing bacteria in temperate forest soils

Cited by 49 publications

References 85 publications

Phosphate-Solubilizing Bacterium Acinetobacter pittii gp-1 Affects Rhizosphere Bacterial Community to Alleviate Soil Phosphorus Limitation for Growth of Soybean (Glycine max)

Phosphate-Solubilizing Bacterium Acinetobacter pittii gp-1 Affects Rhizosphere Bacterial Community to Alleviate Soil Phosphorus Limitation for Growth of Soybean (Glycine max)

Impact of nitrogen and phosphorus addition on resident soil and root mycobiomes in beech forests

Impact of nitrogen and phosphorus addition on resident soil and root mycobiomes in beech forests

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