Simultaneously maximizing root/mycorrhizal growth and phosphorus uptake by cotton plants by optimizing water and phosphorus management

BACKGROUND: There are two plant phosphorus (P)-uptake pathways, namely the direct P uptake by roots and the indirect P uptake through arbuscular mycorrhizal fungi (AMF). Maximizing the efficiency of root and AMF processes associated with P acquisition by adjusting soil conditions is important for si...

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Autores principales: Mai, Wenxuan, Xue, Xiangrong, Feng, Gu, Tian, Changyan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6280356/
https://www.ncbi.nlm.nih.gov/pubmed/30518320
http://dx.doi.org/10.1186/s12870-018-1550-8
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author Mai, Wenxuan
Xue, Xiangrong
Feng, Gu
Tian, Changyan
author_facet Mai, Wenxuan
Xue, Xiangrong
Feng, Gu
Tian, Changyan
author_sort Mai, Wenxuan
collection PubMed
description BACKGROUND: There are two plant phosphorus (P)-uptake pathways, namely the direct P uptake by roots and the indirect P uptake through arbuscular mycorrhizal fungi (AMF). Maximizing the efficiency of root and AMF processes associated with P acquisition by adjusting soil conditions is important for simultaneously ensuring high yields and the efficient use of available P. RESULTS: A root box experiment was conducted in 2015 and 2016. The aim was to investigate the effects of different P and soil water conditions on root/mycorrhizal growth and P uptake by cotton plants. Hyphal growth was induced in well-watered soil, but decreased with increasing P concentrations. Additionally, P fertilizers regulated root length only under well-watered conditions, with the longest roots observed in response to 0.2 g P(2)O(5) kg(− 1). In contrast, root elongation was essentially unaffected by P fertilizers under drought conditions. And soil water in general had more significant effects on root and hyphal growth than phosphorus levels. In well-watered soil, the application of P significantly increased the cotton plant P uptake, but there were no differences between the effects of 0.2 and 1 g P(2)O(5) kg(− 1). So optimizing phosphorus inputs and soil water can increase cotton growth and phosphorus uptake by maximizing the efficiency of phosphorus acquisition by roots/mycorrhizae. CONCLUSIONS: Soil water and P contents of 19–24% and 20–25 mg kg(− 1), respectively, simultaneously maximized root/mycorrhizal growth and P uptake by cotton plants. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1186/s12870-018-1550-8) contains supplementary material, which is available to authorized users.
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spelling pubmed-62803562018-12-10 Simultaneously maximizing root/mycorrhizal growth and phosphorus uptake by cotton plants by optimizing water and phosphorus management Mai, Wenxuan Xue, Xiangrong Feng, Gu Tian, Changyan BMC Plant Biol Research Article BACKGROUND: There are two plant phosphorus (P)-uptake pathways, namely the direct P uptake by roots and the indirect P uptake through arbuscular mycorrhizal fungi (AMF). Maximizing the efficiency of root and AMF processes associated with P acquisition by adjusting soil conditions is important for simultaneously ensuring high yields and the efficient use of available P. RESULTS: A root box experiment was conducted in 2015 and 2016. The aim was to investigate the effects of different P and soil water conditions on root/mycorrhizal growth and P uptake by cotton plants. Hyphal growth was induced in well-watered soil, but decreased with increasing P concentrations. Additionally, P fertilizers regulated root length only under well-watered conditions, with the longest roots observed in response to 0.2 g P(2)O(5) kg(− 1). In contrast, root elongation was essentially unaffected by P fertilizers under drought conditions. And soil water in general had more significant effects on root and hyphal growth than phosphorus levels. In well-watered soil, the application of P significantly increased the cotton plant P uptake, but there were no differences between the effects of 0.2 and 1 g P(2)O(5) kg(− 1). So optimizing phosphorus inputs and soil water can increase cotton growth and phosphorus uptake by maximizing the efficiency of phosphorus acquisition by roots/mycorrhizae. CONCLUSIONS: Soil water and P contents of 19–24% and 20–25 mg kg(− 1), respectively, simultaneously maximized root/mycorrhizal growth and P uptake by cotton plants. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1186/s12870-018-1550-8) contains supplementary material, which is available to authorized users. BioMed Central 2018-12-05 /pmc/articles/PMC6280356/ /pubmed/30518320 http://dx.doi.org/10.1186/s12870-018-1550-8 Text en © The Author(s). 2018 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided 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 Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
spellingShingle Research Article
Mai, Wenxuan
Xue, Xiangrong
Feng, Gu
Tian, Changyan
Simultaneously maximizing root/mycorrhizal growth and phosphorus uptake by cotton plants by optimizing water and phosphorus management
title Simultaneously maximizing root/mycorrhizal growth and phosphorus uptake by cotton plants by optimizing water and phosphorus management
title_full Simultaneously maximizing root/mycorrhizal growth and phosphorus uptake by cotton plants by optimizing water and phosphorus management
title_fullStr Simultaneously maximizing root/mycorrhizal growth and phosphorus uptake by cotton plants by optimizing water and phosphorus management
title_full_unstemmed Simultaneously maximizing root/mycorrhizal growth and phosphorus uptake by cotton plants by optimizing water and phosphorus management
title_short Simultaneously maximizing root/mycorrhizal growth and phosphorus uptake by cotton plants by optimizing water and phosphorus management
title_sort simultaneously maximizing root/mycorrhizal growth and phosphorus uptake by cotton plants by optimizing water and phosphorus management
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6280356/
https://www.ncbi.nlm.nih.gov/pubmed/30518320
http://dx.doi.org/10.1186/s12870-018-1550-8
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