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Ecological strategy of Phyllostachys heteroclada oliver in the riparian zone based on ecological stoichiometry
The abnormality of seasonal water level fluctuation in the riparian zone causes various ecological and environmental problems, such as vegetation degradation, biodiversity reduction, soil erosion, and landscape transformation, thereby critically modifying the ecosystem structure and functions. This...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9659970/ https://www.ncbi.nlm.nih.gov/pubmed/36388549 http://dx.doi.org/10.3389/fpls.2022.974124 |
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author | Jing, Xiong Su, Wenhui Fan, Shaohui Luo, Huiying Chu, Haoyu |
author_facet | Jing, Xiong Su, Wenhui Fan, Shaohui Luo, Huiying Chu, Haoyu |
author_sort | Jing, Xiong |
collection | PubMed |
description | The abnormality of seasonal water level fluctuation in the riparian zone causes various ecological and environmental problems, such as vegetation degradation, biodiversity reduction, soil erosion, and landscape transformation, thereby critically modifying the ecosystem structure and functions. This necessitates the development of a dominant vegetation zone with competitive potential. In this study, we investigated the content and distribution pattern of nutrient elements in each organ of the dominant bamboo species, Phyllostachys heteroclada, in the riparian zone. We also analyzed the morphological characteristics, root aeration tissue structure, root oxygen exchange capacity, ATP supply situation, and leaf PSII photosynthetic mechanism of two bamboo species (P. heteroclada and P. nigra) in the riparian zone. Compared with P. nigra, the roots of P. heteroclada formed well-developed oxygen storage and transport structure, i.e., aeration tissue, and exhibited root oxygen secretion in the waterlogging environment of the riparian zone, whereas the roots maintained a high ATP content through energy metabolism, thus benefiting mineral absorption and transport. Moreover, the accumulation of N, P, Ca, Mg, and Fe in the leaves of P. heteroclada was greater under waterlogging conditions than under non-waterlogging conditions, which is the basis for the efficient operation of the photosynthetic mechanism of the leaves. Compared with waterlogged P. nigra, the PSII electron acceptor Q(A) of P. heteroclada leaves had a vigorous reducing ability and showed higher efficiency of light uptake energy as well as higher quantum yield indexes ϕ(Eo) and ϕ(Po). This study demonstrates that the ecological adaptive regulation strategies of P. heteroclada in the riparian zone are intrinsic driving factors affecting their stoichiometric characteristics, including changes in the absorption and transport of minerals caused by root aeration structure and energy metabolism. Moreover, carbon production and allocation may be caused by the stable photosynthetic mechanism and source-sink relationship of leaves. Through the synergistic regulation of different organs realizing their roles and functions, P. heteroclada developed ecological stoichiometry characteristics adapted to the riparian zone. |
format | Online Article Text |
id | pubmed-9659970 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-96599702022-11-15 Ecological strategy of Phyllostachys heteroclada oliver in the riparian zone based on ecological stoichiometry Jing, Xiong Su, Wenhui Fan, Shaohui Luo, Huiying Chu, Haoyu Front Plant Sci Plant Science The abnormality of seasonal water level fluctuation in the riparian zone causes various ecological and environmental problems, such as vegetation degradation, biodiversity reduction, soil erosion, and landscape transformation, thereby critically modifying the ecosystem structure and functions. This necessitates the development of a dominant vegetation zone with competitive potential. In this study, we investigated the content and distribution pattern of nutrient elements in each organ of the dominant bamboo species, Phyllostachys heteroclada, in the riparian zone. We also analyzed the morphological characteristics, root aeration tissue structure, root oxygen exchange capacity, ATP supply situation, and leaf PSII photosynthetic mechanism of two bamboo species (P. heteroclada and P. nigra) in the riparian zone. Compared with P. nigra, the roots of P. heteroclada formed well-developed oxygen storage and transport structure, i.e., aeration tissue, and exhibited root oxygen secretion in the waterlogging environment of the riparian zone, whereas the roots maintained a high ATP content through energy metabolism, thus benefiting mineral absorption and transport. Moreover, the accumulation of N, P, Ca, Mg, and Fe in the leaves of P. heteroclada was greater under waterlogging conditions than under non-waterlogging conditions, which is the basis for the efficient operation of the photosynthetic mechanism of the leaves. Compared with waterlogged P. nigra, the PSII electron acceptor Q(A) of P. heteroclada leaves had a vigorous reducing ability and showed higher efficiency of light uptake energy as well as higher quantum yield indexes ϕ(Eo) and ϕ(Po). This study demonstrates that the ecological adaptive regulation strategies of P. heteroclada in the riparian zone are intrinsic driving factors affecting their stoichiometric characteristics, including changes in the absorption and transport of minerals caused by root aeration structure and energy metabolism. Moreover, carbon production and allocation may be caused by the stable photosynthetic mechanism and source-sink relationship of leaves. Through the synergistic regulation of different organs realizing their roles and functions, P. heteroclada developed ecological stoichiometry characteristics adapted to the riparian zone. Frontiers Media S.A. 2022-10-31 /pmc/articles/PMC9659970/ /pubmed/36388549 http://dx.doi.org/10.3389/fpls.2022.974124 Text en Copyright © 2022 Jing, Su, Fan, Luo and Chu. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Plant Science Jing, Xiong Su, Wenhui Fan, Shaohui Luo, Huiying Chu, Haoyu Ecological strategy of Phyllostachys heteroclada oliver in the riparian zone based on ecological stoichiometry |
title | Ecological strategy of Phyllostachys heteroclada oliver in the riparian zone based on ecological stoichiometry |
title_full | Ecological strategy of Phyllostachys heteroclada oliver in the riparian zone based on ecological stoichiometry |
title_fullStr | Ecological strategy of Phyllostachys heteroclada oliver in the riparian zone based on ecological stoichiometry |
title_full_unstemmed | Ecological strategy of Phyllostachys heteroclada oliver in the riparian zone based on ecological stoichiometry |
title_short | Ecological strategy of Phyllostachys heteroclada oliver in the riparian zone based on ecological stoichiometry |
title_sort | ecological strategy of phyllostachys heteroclada oliver in the riparian zone based on ecological stoichiometry |
topic | Plant Science |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9659970/ https://www.ncbi.nlm.nih.gov/pubmed/36388549 http://dx.doi.org/10.3389/fpls.2022.974124 |
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