Long term impact of mineral amendment on the distribution of the mineral weathering associated bacterial communities from the beech Scleroderma citrinum ectomycorrhizosphere

Uroz, Stéphane; Turpault, M.-P.; Schöll, L. van; Palin, Béatrice; Frey‐Klett, Pascale

doi:10.1016/j.soilbio.2011.07.010

Cited by 47 publications

(30 citation statements)

References 34 publications

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“…The concentrations of Si, Al, and Fe in Bushnell-Haas medium (BHm) containing 5.0% (wt/vol) biotite (50-to 150-m size fraction) and incubated for 7 days at 28°C increased 2.7-to 3.7-fold, 2.5-to 3.5-fold, and 9.6-to 17-fold, respectively, in the presence of strain H66 compared to those of the uninoculated controls. The BHm contained 0.002% KCl, 0.015% MgSO 4 ·7H 2 O, 0.008% NaH 2 PO 4 ·2H 2 O, 0.009% Na 2 HPO 4 ·2H 2 O, 0.0065% (NH 4 ) 2 SO 4 , 0.01% KNO 3 , 0.002% CaCl 2 , and 0.2% glucose (17). Rhizobium etli CFN42 was used as a reference strain in this study.…”

Section: Methodsmentioning

confidence: 99%

“…Attached microorganisms dissolve minerals by increasing the concentration of protons, inducing the formation of mineral surface ion complexes, catalyzing redox reactions, and using physical forces (14)(15)(16). Although reports about bacterial mineral weathering and the mechanisms involved exist (8,10,17,18), little is known about the interaction between silicate minerals and rhizobia (bacteria that fix nitrogen after becoming established inside root nodules of legumes) (9,19). Moreover, to our knowledge, no comparative study has been reported on the detailed interactions between potash feldspar and rhizobia, in particular, the mineral-weathering activities of Rhizobium yantingense H66 and Rhizobium etli CFN42 under different nutritional conditions.…”

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Distinct Mineral Weathering Behaviors of the Novel Mineral-Weathering Strains Rhizobium yantingense H66 and Rhizobium etli CFN42

Chen

Luo

et al. 2016

Appl Environ Microbiol

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Bacteria play important roles in mineral weathering, soil formation, and element cycling. However, little is known about the interaction between silicate minerals and rhizobia. In this study, Rhizobium yantingense H66 (a novel mineral-weathering rhizobium) and Rhizobium etli CFN42 were compared with respect to potash feldspar weathering, mineral surface adsorption, and metabolic activity during the mineral weathering process. Strain H66 showed significantly higher Si, Al, and K mobilization from the mineral and higher ratios of cell numbers on the mineral surface to total cell numbers than strain CFN42. Although the two strains produced gluconic acid, strain H66 also produced acetic, malic, and succinic acids during mineral weathering in lowand high-glucose media. Notably, higher Si, Al, and K releases, higher ratios of cell numbers on the mineral surface to total cell numbers, and a higher production of organic acids by strain H66 were observed in the low-glucose medium than in the highglucose medium. Scanning electron microscope analyses of the mineral surfaces and redundancy analysis showed stronger positive correlations between the mineral surface cell adsorption and mineral weathering, indicated by the dissolved Al and K concentrations. The results showed that the two rhizobia behaved differently with respect to mineral weathering. The results suggested that Rhizobium yantingense H66 promoted potash feldspar weathering through increased adsorption of cells to the mineral surface and through differences in glucose metabolism at low and high nutrient concentrations, especially at low nutrient concentrations. IMPORTANCEThis study reported the potash feldspar weathering, the cell adsorption capacity of the mineral surfaces, and the metabolic differences between the novel mineral-weathering Rhizobium yantingense H66 and Rhizobium etli CFN42 under different nutritional conditions. The results showed that Rhizobium yantingense H66 had a greater ability to weather the mineral in low-and high-glucose media, especially in the low-glucose medium. Furthermore, Rhizobium yantingense H66 promoted mineral weathering through the increased adsorption of cells to the mineral surface and through increased organic acid production. Our results allow us to better comprehend the roles of different rhizobia in silicate mineral weathering, element cycling, and soil formation in various soil environments, providing more insight into the geomicrobial contributions of rhizobia to these processes. Silicate weathering in terrestrial ecosystems plays an important role in the formation of soil and soil nutrients, in neutralization of acid rain, and in the long-term drawdown of atmospheric CO 2 (1-5). Many studies indicate that bacteria can significantly affect mineral dissolution by producing acids and metal-complexing ligands, changing redox conditions, or mediating the formation of secondary mineral phases (6-10). Furthermore, bacterial adhesion to minerals plays an important role in governing bacterial activities and mineral we...

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Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

Distinct Mineral Weathering Behaviors of the Novel Mineral-Weathering Strains Rhizobium yantingense H66 and Rhizobium etli CFN42

Chen

Luo

et al. 2016

Appl Environ Microbiol

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“…Other experimental sites exist at several places where the effect of liming on soil properties is or has been studied (e.g. Urrutia et al, 1991;Wheeler, 1997;Rutunga and Neel, 2006;Uroz et al, 2011;Arshad et al, 2012;Rigueiro-Rodríguez et al, 2012), and it is likely that SOC data exist, given that its determination is routinely performed in most laboratories. Indeed, as in these studies preference has in general been given to pH, cation exchange properties or plant productivity aspects, authors may have chosen not to publish SOC data, which were not central to their works.…”

Section: F-valuementioning

confidence: 99%

Net effect of liming on soil organic carbon stocks: A review

Paradelo

Virto

Chenu

2015

Agriculture, Ecosystems & Environment

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135

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“…In addition, there is a large body of knowledge concerning the distribution, community structure, and mineral weathering roles of bacterial communities in various environments, such as forest soils, tree rhizosphere and ectomycorrhizosphere environments, rock surfaces, and plant seeds (11,(13)(14)(15). However, previous studies on mineral weathering bacteria have focused on surface soil environments (10,16,17). Few studies have been published that provide an overview of mineral weathering populations throughout a soil profile and how these populations are distributed along a profile of that soil.…”

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confidence: 99%

Depth-Related Changes in Community Structure of Culturable Mineral Weathering Bacteria and in Weathering Patterns Caused by Them along Two Contrasting Soil Profiles

Huang

Sheng

et al. 2014

Appl Environ Microbiol

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Bacteria play important roles in mineral weathering and soil formation. However, few reports of mineral weathering bacteria inhabiting subsurfaces of soil profiles have been published, raising the question of whether the subsurface weathering bacteria are fundamentally distinct from those in surface communities. To address this question, we isolated and characterized mineral weathering bacteria from two contrasting soil profiles with respect to their role in the weathering pattern evolution, their place in the community structure, and their depth-related changes in these two soil profiles. The effectiveness and pattern of bacterial mineral weathering were different in the two profiles and among the horizons within the respective profiles. The abundance of highly effective mineral weathering bacteria in the Changshu profile was significantly greater in the deepest horizon than in the upper horizons, whereas in the Yanting profile it was significantly greater in the upper horizons than in the deeper horizons. Most of the mineral weathering bacteria from the upper horizons of the Changshu profile and from the deeper horizons of the Yanting profile significantly acidified the culture media in the mineral weathering process. The proportion of siderophore-producing bacteria in the Changshu profile was similar in all horizons except in the Bg2 horizon, whereas the proportion of siderophore-producing bacteria in the Yanting profile was higher in the upper horizons than in the deeper horizons. Both profiles existed in different highly depth-specific culturable mineral weathering community structures. The depth-related changes in culturable weathering communities were primarily attributable to minor bacterial groups rather than to a change in the major population structure.

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Long term impact of mineral amendment on the distribution of the mineral weathering associated bacterial communities from the beech Scleroderma citrinum ectomycorrhizosphere

Cited by 47 publications

References 34 publications

Distinct Mineral Weathering Behaviors of the Novel Mineral-Weathering Strains Rhizobium yantingense H66 and Rhizobium etli CFN42

Distinct Mineral Weathering Behaviors of the Novel Mineral-Weathering Strains Rhizobium yantingense H66 and Rhizobium etli CFN42

Net effect of liming on soil organic carbon stocks: A review

Depth-Related Changes in Community Structure of Culturable Mineral Weathering Bacteria and in Weathering Patterns Caused by Them along Two Contrasting Soil Profiles

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