The Experts below are selected from a list of 264 Experts worldwide ranked by ideXlab platform
Jizhong Zhou - One of the best experts on this subject based on the ideXlab platform.
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microbial extracellular polysaccharide production and aggregate stability controlled by switchgrass panicum virgatum root biomass and Soil Water Potential
Soil Biology & Biochemistry, 2020Co-Authors: Yonatan Sher, Nameer R Baker, Don Herman, Christina Fossum, Lauren Hale, Xingxu Zhang, Erin E Nuccio, Malay C Saha, Jizhong ZhouAbstract:Abstract Deep-rooting perennial grasses are promising feedstocks for biofuel production, especially in marginal Soils lacking organic material, nutrients, and/or that experience significant Water stress. Perennial grass roots influence surrounding Soil conditions and microbial activities, and produce extracellular polymeric substances (EPS) composed primarily of extracellular polysaccharides (EPSac). These polymers can alleviate microbial moisture and nutrient stress, and enhance Soil characteristics through improved Water retention and aggregate stability—which may in turn enhance carbon persistence. In this study we used a 13CO2 greenhouse tracer experiment to examine the effect of switchgrass cultivation on EPSac production and origin in a marginal Soil with five fertilization/Water treatments (control, +N, +NP, +P, low Water), and compared these results with measurements of field Soils collected after long-term switchgrass cultivation. Soils with added nitrogen and phosphorus (+NP) had the highest root biomass, EPSac and percentage of Water-stable Soil aggregates. Multiple linear regression analyses revealed that root biomass and Soil Water Potential were important determinants of Soil EPSac production, Potentially by controlling carbon supply and diurnal changes in moisture stress. Path analysis showed that Soil aggregation was positively correlated with bulk Soil EPSac content and also regulated by Soil Water Potential. High mannose content indicated the majority of EPSac was of microbial origin and 13CO2 labeling indicated that 0.18% of newly fixed plant carbon was incorporated into EPSac. Analysis of field Soils suggests that EPSac is significantly enhanced after long-term switchgrass cultivation. Taken as a whole, our greenhouse and field results demonstrate that switchgrass cultivation can promote microbial production of EPSac, providing a mechanism to enhance aggregation in marginal Soils.
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microbial extracellular polysaccharide production and aggregate stability controlled by switchgrass panicum virgatum root biomass and Soil Water Potential
bioRxiv, 2019Co-Authors: Yonatan Sher, Nameer R Baker, Don Herman, Christina Fossum, Lauren Hale, Xingxu Zhang, Erin E Nuccio, Malay C Saha, Jizhong ZhouAbstract:Deep-rooting perennial grasses are promising feedstock for biofuel production, especially in marginal Soils lacking organic material, nutrients, and/or that experience significant Water stress. Perennial grass roots can alter surrounding Soil conditions and influence microbial activities, particularly the production of extracellular polymeric substances composed primarily of extracellular polysaccharides (EPS). These polymers can alleviate cellular moisture and nutrient stress, and enhance Soil characteristics through improved Water retention and aggregate stability, the latter of which may in turn enhance carbon persistence. In this study we used a 13CO2 tracer greenhouse experiment to examine the effect of switchgrass cultivation on the production and origin of EPS in a marginal Soil with five fertilization/Water treatments (control, +N, +NP, +P, low Water). Soils with both added nitrogen and phosphorus had the highest root biomass, EPS and percentage of Water-stable Soil aggregates. Multiple linear regression analyses revealed root biomass was the most important determinant for Soil EPS production, Potentially by controlling carbon supply and diurnal changes in Soil Water Potential. Path analysis highlighted the role of Soil Water Potential and EPS on Water-stable Soil aggregates, indicating that EPS content and Soil aggregation have similar drivers in this Soil. High mannose content confirmed the microbial origin of EPS. 13CO2 labeling indicated that 0.18% of newly fixed plant carbon was incorporated into EPS. Analysis of field samples suggests that EPS is significantly enhanced under long-term switchgrass cultivation. Our results demonstrate that switchgrass cultivation can promote microbial production of EPS, providing a mechanism to enhance sustainability of marginal Soils.
Don Herman - One of the best experts on this subject based on the ideXlab platform.
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microbial extracellular polysaccharide production and aggregate stability controlled by switchgrass panicum virgatum root biomass and Soil Water Potential
Soil Biology & Biochemistry, 2020Co-Authors: Yonatan Sher, Nameer R Baker, Don Herman, Christina Fossum, Lauren Hale, Xingxu Zhang, Erin E Nuccio, Malay C Saha, Jizhong ZhouAbstract:Abstract Deep-rooting perennial grasses are promising feedstocks for biofuel production, especially in marginal Soils lacking organic material, nutrients, and/or that experience significant Water stress. Perennial grass roots influence surrounding Soil conditions and microbial activities, and produce extracellular polymeric substances (EPS) composed primarily of extracellular polysaccharides (EPSac). These polymers can alleviate microbial moisture and nutrient stress, and enhance Soil characteristics through improved Water retention and aggregate stability—which may in turn enhance carbon persistence. In this study we used a 13CO2 greenhouse tracer experiment to examine the effect of switchgrass cultivation on EPSac production and origin in a marginal Soil with five fertilization/Water treatments (control, +N, +NP, +P, low Water), and compared these results with measurements of field Soils collected after long-term switchgrass cultivation. Soils with added nitrogen and phosphorus (+NP) had the highest root biomass, EPSac and percentage of Water-stable Soil aggregates. Multiple linear regression analyses revealed that root biomass and Soil Water Potential were important determinants of Soil EPSac production, Potentially by controlling carbon supply and diurnal changes in moisture stress. Path analysis showed that Soil aggregation was positively correlated with bulk Soil EPSac content and also regulated by Soil Water Potential. High mannose content indicated the majority of EPSac was of microbial origin and 13CO2 labeling indicated that 0.18% of newly fixed plant carbon was incorporated into EPSac. Analysis of field Soils suggests that EPSac is significantly enhanced after long-term switchgrass cultivation. Taken as a whole, our greenhouse and field results demonstrate that switchgrass cultivation can promote microbial production of EPSac, providing a mechanism to enhance aggregation in marginal Soils.
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microbial extracellular polysaccharide production and aggregate stability controlled by switchgrass panicum virgatum root biomass and Soil Water Potential
bioRxiv, 2019Co-Authors: Yonatan Sher, Nameer R Baker, Don Herman, Christina Fossum, Lauren Hale, Xingxu Zhang, Erin E Nuccio, Malay C Saha, Jizhong ZhouAbstract:Deep-rooting perennial grasses are promising feedstock for biofuel production, especially in marginal Soils lacking organic material, nutrients, and/or that experience significant Water stress. Perennial grass roots can alter surrounding Soil conditions and influence microbial activities, particularly the production of extracellular polymeric substances composed primarily of extracellular polysaccharides (EPS). These polymers can alleviate cellular moisture and nutrient stress, and enhance Soil characteristics through improved Water retention and aggregate stability, the latter of which may in turn enhance carbon persistence. In this study we used a 13CO2 tracer greenhouse experiment to examine the effect of switchgrass cultivation on the production and origin of EPS in a marginal Soil with five fertilization/Water treatments (control, +N, +NP, +P, low Water). Soils with both added nitrogen and phosphorus had the highest root biomass, EPS and percentage of Water-stable Soil aggregates. Multiple linear regression analyses revealed root biomass was the most important determinant for Soil EPS production, Potentially by controlling carbon supply and diurnal changes in Soil Water Potential. Path analysis highlighted the role of Soil Water Potential and EPS on Water-stable Soil aggregates, indicating that EPS content and Soil aggregation have similar drivers in this Soil. High mannose content confirmed the microbial origin of EPS. 13CO2 labeling indicated that 0.18% of newly fixed plant carbon was incorporated into EPS. Analysis of field samples suggests that EPS is significantly enhanced under long-term switchgrass cultivation. Our results demonstrate that switchgrass cultivation can promote microbial production of EPS, providing a mechanism to enhance sustainability of marginal Soils.
Yonatan Sher - One of the best experts on this subject based on the ideXlab platform.
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microbial extracellular polysaccharide production and aggregate stability controlled by switchgrass panicum virgatum root biomass and Soil Water Potential
Soil Biology & Biochemistry, 2020Co-Authors: Yonatan Sher, Nameer R Baker, Don Herman, Christina Fossum, Lauren Hale, Xingxu Zhang, Erin E Nuccio, Malay C Saha, Jizhong ZhouAbstract:Abstract Deep-rooting perennial grasses are promising feedstocks for biofuel production, especially in marginal Soils lacking organic material, nutrients, and/or that experience significant Water stress. Perennial grass roots influence surrounding Soil conditions and microbial activities, and produce extracellular polymeric substances (EPS) composed primarily of extracellular polysaccharides (EPSac). These polymers can alleviate microbial moisture and nutrient stress, and enhance Soil characteristics through improved Water retention and aggregate stability—which may in turn enhance carbon persistence. In this study we used a 13CO2 greenhouse tracer experiment to examine the effect of switchgrass cultivation on EPSac production and origin in a marginal Soil with five fertilization/Water treatments (control, +N, +NP, +P, low Water), and compared these results with measurements of field Soils collected after long-term switchgrass cultivation. Soils with added nitrogen and phosphorus (+NP) had the highest root biomass, EPSac and percentage of Water-stable Soil aggregates. Multiple linear regression analyses revealed that root biomass and Soil Water Potential were important determinants of Soil EPSac production, Potentially by controlling carbon supply and diurnal changes in moisture stress. Path analysis showed that Soil aggregation was positively correlated with bulk Soil EPSac content and also regulated by Soil Water Potential. High mannose content indicated the majority of EPSac was of microbial origin and 13CO2 labeling indicated that 0.18% of newly fixed plant carbon was incorporated into EPSac. Analysis of field Soils suggests that EPSac is significantly enhanced after long-term switchgrass cultivation. Taken as a whole, our greenhouse and field results demonstrate that switchgrass cultivation can promote microbial production of EPSac, providing a mechanism to enhance aggregation in marginal Soils.
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microbial extracellular polysaccharide production and aggregate stability controlled by switchgrass panicum virgatum root biomass and Soil Water Potential
bioRxiv, 2019Co-Authors: Yonatan Sher, Nameer R Baker, Don Herman, Christina Fossum, Lauren Hale, Xingxu Zhang, Erin E Nuccio, Malay C Saha, Jizhong ZhouAbstract:Deep-rooting perennial grasses are promising feedstock for biofuel production, especially in marginal Soils lacking organic material, nutrients, and/or that experience significant Water stress. Perennial grass roots can alter surrounding Soil conditions and influence microbial activities, particularly the production of extracellular polymeric substances composed primarily of extracellular polysaccharides (EPS). These polymers can alleviate cellular moisture and nutrient stress, and enhance Soil characteristics through improved Water retention and aggregate stability, the latter of which may in turn enhance carbon persistence. In this study we used a 13CO2 tracer greenhouse experiment to examine the effect of switchgrass cultivation on the production and origin of EPS in a marginal Soil with five fertilization/Water treatments (control, +N, +NP, +P, low Water). Soils with both added nitrogen and phosphorus had the highest root biomass, EPS and percentage of Water-stable Soil aggregates. Multiple linear regression analyses revealed root biomass was the most important determinant for Soil EPS production, Potentially by controlling carbon supply and diurnal changes in Soil Water Potential. Path analysis highlighted the role of Soil Water Potential and EPS on Water-stable Soil aggregates, indicating that EPS content and Soil aggregation have similar drivers in this Soil. High mannose content confirmed the microbial origin of EPS. 13CO2 labeling indicated that 0.18% of newly fixed plant carbon was incorporated into EPS. Analysis of field samples suggests that EPS is significantly enhanced under long-term switchgrass cultivation. Our results demonstrate that switchgrass cultivation can promote microbial production of EPS, providing a mechanism to enhance sustainability of marginal Soils.
Malay C Saha - One of the best experts on this subject based on the ideXlab platform.
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microbial extracellular polysaccharide production and aggregate stability controlled by switchgrass panicum virgatum root biomass and Soil Water Potential
Soil Biology & Biochemistry, 2020Co-Authors: Yonatan Sher, Nameer R Baker, Don Herman, Christina Fossum, Lauren Hale, Xingxu Zhang, Erin E Nuccio, Malay C Saha, Jizhong ZhouAbstract:Abstract Deep-rooting perennial grasses are promising feedstocks for biofuel production, especially in marginal Soils lacking organic material, nutrients, and/or that experience significant Water stress. Perennial grass roots influence surrounding Soil conditions and microbial activities, and produce extracellular polymeric substances (EPS) composed primarily of extracellular polysaccharides (EPSac). These polymers can alleviate microbial moisture and nutrient stress, and enhance Soil characteristics through improved Water retention and aggregate stability—which may in turn enhance carbon persistence. In this study we used a 13CO2 greenhouse tracer experiment to examine the effect of switchgrass cultivation on EPSac production and origin in a marginal Soil with five fertilization/Water treatments (control, +N, +NP, +P, low Water), and compared these results with measurements of field Soils collected after long-term switchgrass cultivation. Soils with added nitrogen and phosphorus (+NP) had the highest root biomass, EPSac and percentage of Water-stable Soil aggregates. Multiple linear regression analyses revealed that root biomass and Soil Water Potential were important determinants of Soil EPSac production, Potentially by controlling carbon supply and diurnal changes in moisture stress. Path analysis showed that Soil aggregation was positively correlated with bulk Soil EPSac content and also regulated by Soil Water Potential. High mannose content indicated the majority of EPSac was of microbial origin and 13CO2 labeling indicated that 0.18% of newly fixed plant carbon was incorporated into EPSac. Analysis of field Soils suggests that EPSac is significantly enhanced after long-term switchgrass cultivation. Taken as a whole, our greenhouse and field results demonstrate that switchgrass cultivation can promote microbial production of EPSac, providing a mechanism to enhance aggregation in marginal Soils.
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microbial extracellular polysaccharide production and aggregate stability controlled by switchgrass panicum virgatum root biomass and Soil Water Potential
bioRxiv, 2019Co-Authors: Yonatan Sher, Nameer R Baker, Don Herman, Christina Fossum, Lauren Hale, Xingxu Zhang, Erin E Nuccio, Malay C Saha, Jizhong ZhouAbstract:Deep-rooting perennial grasses are promising feedstock for biofuel production, especially in marginal Soils lacking organic material, nutrients, and/or that experience significant Water stress. Perennial grass roots can alter surrounding Soil conditions and influence microbial activities, particularly the production of extracellular polymeric substances composed primarily of extracellular polysaccharides (EPS). These polymers can alleviate cellular moisture and nutrient stress, and enhance Soil characteristics through improved Water retention and aggregate stability, the latter of which may in turn enhance carbon persistence. In this study we used a 13CO2 tracer greenhouse experiment to examine the effect of switchgrass cultivation on the production and origin of EPS in a marginal Soil with five fertilization/Water treatments (control, +N, +NP, +P, low Water). Soils with both added nitrogen and phosphorus had the highest root biomass, EPS and percentage of Water-stable Soil aggregates. Multiple linear regression analyses revealed root biomass was the most important determinant for Soil EPS production, Potentially by controlling carbon supply and diurnal changes in Soil Water Potential. Path analysis highlighted the role of Soil Water Potential and EPS on Water-stable Soil aggregates, indicating that EPS content and Soil aggregation have similar drivers in this Soil. High mannose content confirmed the microbial origin of EPS. 13CO2 labeling indicated that 0.18% of newly fixed plant carbon was incorporated into EPS. Analysis of field samples suggests that EPS is significantly enhanced under long-term switchgrass cultivation. Our results demonstrate that switchgrass cultivation can promote microbial production of EPS, providing a mechanism to enhance sustainability of marginal Soils.
Erin E Nuccio - One of the best experts on this subject based on the ideXlab platform.
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microbial extracellular polysaccharide production and aggregate stability controlled by switchgrass panicum virgatum root biomass and Soil Water Potential
Soil Biology & Biochemistry, 2020Co-Authors: Yonatan Sher, Nameer R Baker, Don Herman, Christina Fossum, Lauren Hale, Xingxu Zhang, Erin E Nuccio, Malay C Saha, Jizhong ZhouAbstract:Abstract Deep-rooting perennial grasses are promising feedstocks for biofuel production, especially in marginal Soils lacking organic material, nutrients, and/or that experience significant Water stress. Perennial grass roots influence surrounding Soil conditions and microbial activities, and produce extracellular polymeric substances (EPS) composed primarily of extracellular polysaccharides (EPSac). These polymers can alleviate microbial moisture and nutrient stress, and enhance Soil characteristics through improved Water retention and aggregate stability—which may in turn enhance carbon persistence. In this study we used a 13CO2 greenhouse tracer experiment to examine the effect of switchgrass cultivation on EPSac production and origin in a marginal Soil with five fertilization/Water treatments (control, +N, +NP, +P, low Water), and compared these results with measurements of field Soils collected after long-term switchgrass cultivation. Soils with added nitrogen and phosphorus (+NP) had the highest root biomass, EPSac and percentage of Water-stable Soil aggregates. Multiple linear regression analyses revealed that root biomass and Soil Water Potential were important determinants of Soil EPSac production, Potentially by controlling carbon supply and diurnal changes in moisture stress. Path analysis showed that Soil aggregation was positively correlated with bulk Soil EPSac content and also regulated by Soil Water Potential. High mannose content indicated the majority of EPSac was of microbial origin and 13CO2 labeling indicated that 0.18% of newly fixed plant carbon was incorporated into EPSac. Analysis of field Soils suggests that EPSac is significantly enhanced after long-term switchgrass cultivation. Taken as a whole, our greenhouse and field results demonstrate that switchgrass cultivation can promote microbial production of EPSac, providing a mechanism to enhance aggregation in marginal Soils.
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microbial extracellular polysaccharide production and aggregate stability controlled by switchgrass panicum virgatum root biomass and Soil Water Potential
bioRxiv, 2019Co-Authors: Yonatan Sher, Nameer R Baker, Don Herman, Christina Fossum, Lauren Hale, Xingxu Zhang, Erin E Nuccio, Malay C Saha, Jizhong ZhouAbstract:Deep-rooting perennial grasses are promising feedstock for biofuel production, especially in marginal Soils lacking organic material, nutrients, and/or that experience significant Water stress. Perennial grass roots can alter surrounding Soil conditions and influence microbial activities, particularly the production of extracellular polymeric substances composed primarily of extracellular polysaccharides (EPS). These polymers can alleviate cellular moisture and nutrient stress, and enhance Soil characteristics through improved Water retention and aggregate stability, the latter of which may in turn enhance carbon persistence. In this study we used a 13CO2 tracer greenhouse experiment to examine the effect of switchgrass cultivation on the production and origin of EPS in a marginal Soil with five fertilization/Water treatments (control, +N, +NP, +P, low Water). Soils with both added nitrogen and phosphorus had the highest root biomass, EPS and percentage of Water-stable Soil aggregates. Multiple linear regression analyses revealed root biomass was the most important determinant for Soil EPS production, Potentially by controlling carbon supply and diurnal changes in Soil Water Potential. Path analysis highlighted the role of Soil Water Potential and EPS on Water-stable Soil aggregates, indicating that EPS content and Soil aggregation have similar drivers in this Soil. High mannose content confirmed the microbial origin of EPS. 13CO2 labeling indicated that 0.18% of newly fixed plant carbon was incorporated into EPS. Analysis of field samples suggests that EPS is significantly enhanced under long-term switchgrass cultivation. Our results demonstrate that switchgrass cultivation can promote microbial production of EPS, providing a mechanism to enhance sustainability of marginal Soils.
