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Spectroscopic analysis reveals that soil phosphorus availability and plant allocation strategies impact feedstock quality of nutrient-limited switchgrass

The perennial native switchgrass adapts better than other plant species do to marginal soils with low plant-available nutrients, including those with low phosphorus (P) content. Switchgrass roots and their associated microorganisms can alter the pools of available P throughout the whole soil profile...

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Autores principales: Hao, Zhao, Wang, Yuan, Ding, Na, Saha, Malay C., Scheible, Wolf-Rüdiger, Craven, Kelly, Udvardi, Michael, Nico, Peter S., Firestone, Mary K., Brodie, Eoin L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8917137/
https://www.ncbi.nlm.nih.gov/pubmed/35277578
http://dx.doi.org/10.1038/s42003-022-03157-7
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author Hao, Zhao
Wang, Yuan
Ding, Na
Saha, Malay C.
Scheible, Wolf-Rüdiger
Craven, Kelly
Udvardi, Michael
Nico, Peter S.
Firestone, Mary K.
Brodie, Eoin L.
author_facet Hao, Zhao
Wang, Yuan
Ding, Na
Saha, Malay C.
Scheible, Wolf-Rüdiger
Craven, Kelly
Udvardi, Michael
Nico, Peter S.
Firestone, Mary K.
Brodie, Eoin L.
author_sort Hao, Zhao
collection PubMed
description The perennial native switchgrass adapts better than other plant species do to marginal soils with low plant-available nutrients, including those with low phosphorus (P) content. Switchgrass roots and their associated microorganisms can alter the pools of available P throughout the whole soil profile making predictions of P availability in situ challenging. Plant P homeostasis makes monitoring of P limitation via measurements of plant P content alone difficult to interpret. To address these challenges, we developed a machine-learning model trained with high accuracy using the leaf tissue chemical profile, rather than P content. By applying this learned model in field trials across two sites with contrasting extractable soil P, we observed that actual plant available P in soil was more similar than expected, suggesting that adaptations occurred to alleviate the apparent P constraint. These adaptations come at a metabolic cost to the plant that have consequences for feedstock chemical components and quality. We observed that other biochemical signatures of P limitation, such as decreased cellulose-to-lignin ratios, were apparent, indicating re-allocation of carbon resources may have contributed to increased P acquisition. Plant P allocation strategies also differed across sites, and these differences were correlated with the subsequent year’s biomass yields.
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spelling pubmed-89171372022-03-30 Spectroscopic analysis reveals that soil phosphorus availability and plant allocation strategies impact feedstock quality of nutrient-limited switchgrass Hao, Zhao Wang, Yuan Ding, Na Saha, Malay C. Scheible, Wolf-Rüdiger Craven, Kelly Udvardi, Michael Nico, Peter S. Firestone, Mary K. Brodie, Eoin L. Commun Biol Article The perennial native switchgrass adapts better than other plant species do to marginal soils with low plant-available nutrients, including those with low phosphorus (P) content. Switchgrass roots and their associated microorganisms can alter the pools of available P throughout the whole soil profile making predictions of P availability in situ challenging. Plant P homeostasis makes monitoring of P limitation via measurements of plant P content alone difficult to interpret. To address these challenges, we developed a machine-learning model trained with high accuracy using the leaf tissue chemical profile, rather than P content. By applying this learned model in field trials across two sites with contrasting extractable soil P, we observed that actual plant available P in soil was more similar than expected, suggesting that adaptations occurred to alleviate the apparent P constraint. These adaptations come at a metabolic cost to the plant that have consequences for feedstock chemical components and quality. We observed that other biochemical signatures of P limitation, such as decreased cellulose-to-lignin ratios, were apparent, indicating re-allocation of carbon resources may have contributed to increased P acquisition. Plant P allocation strategies also differed across sites, and these differences were correlated with the subsequent year’s biomass yields. Nature Publishing Group UK 2022-03-11 /pmc/articles/PMC8917137/ /pubmed/35277578 http://dx.doi.org/10.1038/s42003-022-03157-7 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Hao, Zhao
Wang, Yuan
Ding, Na
Saha, Malay C.
Scheible, Wolf-Rüdiger
Craven, Kelly
Udvardi, Michael
Nico, Peter S.
Firestone, Mary K.
Brodie, Eoin L.
Spectroscopic analysis reveals that soil phosphorus availability and plant allocation strategies impact feedstock quality of nutrient-limited switchgrass
title Spectroscopic analysis reveals that soil phosphorus availability and plant allocation strategies impact feedstock quality of nutrient-limited switchgrass
title_full Spectroscopic analysis reveals that soil phosphorus availability and plant allocation strategies impact feedstock quality of nutrient-limited switchgrass
title_fullStr Spectroscopic analysis reveals that soil phosphorus availability and plant allocation strategies impact feedstock quality of nutrient-limited switchgrass
title_full_unstemmed Spectroscopic analysis reveals that soil phosphorus availability and plant allocation strategies impact feedstock quality of nutrient-limited switchgrass
title_short Spectroscopic analysis reveals that soil phosphorus availability and plant allocation strategies impact feedstock quality of nutrient-limited switchgrass
title_sort spectroscopic analysis reveals that soil phosphorus availability and plant allocation strategies impact feedstock quality of nutrient-limited switchgrass
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8917137/
https://www.ncbi.nlm.nih.gov/pubmed/35277578
http://dx.doi.org/10.1038/s42003-022-03157-7
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