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Dynamics of photosynthetic induction and relaxation within the canopy of rice and two wild relatives
Wild rice species are a source of genetic material for improving cultivated rice (Oryza sativa) and a means to understand its evolutionary history. Renewed interest in non‐steady‐state photosynthesis in crops has taken place due its potential in improving sustainable productivity. Variation was char...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8459282/ https://www.ncbi.nlm.nih.gov/pubmed/34594547 http://dx.doi.org/10.1002/fes3.286 |
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author | Acevedo‐Siaca, Liana G. Dionora, Jacqueline Laza, Rebecca Paul Quick, William Long, Stephen P. |
author_facet | Acevedo‐Siaca, Liana G. Dionora, Jacqueline Laza, Rebecca Paul Quick, William Long, Stephen P. |
author_sort | Acevedo‐Siaca, Liana G. |
collection | PubMed |
description | Wild rice species are a source of genetic material for improving cultivated rice (Oryza sativa) and a means to understand its evolutionary history. Renewed interest in non‐steady‐state photosynthesis in crops has taken place due its potential in improving sustainable productivity. Variation was characterized for photosynthetic induction and relaxation at two leaf canopy levels in three rice species. The wild rice accessions had 16%–40% higher rates of leaf CO(2) uptake (A) during photosynthetic induction relative to the O. sativa accession. However, O. sativa had an overall higher photosynthetic capacity when compared to accessions of its wild progenitors. Additionally, O. sativa had a faster stomatal closing response, resulting in higher intrinsic water‐use efficiency during high‐to‐low light transitions. Leaf position in the canopy had a significant effect on non‐steady‐state photosynthesis, but not steady‐state photosynthesis. The results show potential to utilize wild material to refine plant models and improve non‐steady‐state photosynthesis in cultivated rice for increased productivity. |
format | Online Article Text |
id | pubmed-8459282 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-84592822021-09-28 Dynamics of photosynthetic induction and relaxation within the canopy of rice and two wild relatives Acevedo‐Siaca, Liana G. Dionora, Jacqueline Laza, Rebecca Paul Quick, William Long, Stephen P. Food Energy Secur Original Research Wild rice species are a source of genetic material for improving cultivated rice (Oryza sativa) and a means to understand its evolutionary history. Renewed interest in non‐steady‐state photosynthesis in crops has taken place due its potential in improving sustainable productivity. Variation was characterized for photosynthetic induction and relaxation at two leaf canopy levels in three rice species. The wild rice accessions had 16%–40% higher rates of leaf CO(2) uptake (A) during photosynthetic induction relative to the O. sativa accession. However, O. sativa had an overall higher photosynthetic capacity when compared to accessions of its wild progenitors. Additionally, O. sativa had a faster stomatal closing response, resulting in higher intrinsic water‐use efficiency during high‐to‐low light transitions. Leaf position in the canopy had a significant effect on non‐steady‐state photosynthesis, but not steady‐state photosynthesis. The results show potential to utilize wild material to refine plant models and improve non‐steady‐state photosynthesis in cultivated rice for increased productivity. John Wiley and Sons Inc. 2021-05-05 2021-08 /pmc/articles/PMC8459282/ /pubmed/34594547 http://dx.doi.org/10.1002/fes3.286 Text en © 2021 The Authors. Food and Energy Security published by John Wiley & Sons Ltd. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Research Acevedo‐Siaca, Liana G. Dionora, Jacqueline Laza, Rebecca Paul Quick, William Long, Stephen P. Dynamics of photosynthetic induction and relaxation within the canopy of rice and two wild relatives |
title | Dynamics of photosynthetic induction and relaxation within the canopy of rice and two wild relatives |
title_full | Dynamics of photosynthetic induction and relaxation within the canopy of rice and two wild relatives |
title_fullStr | Dynamics of photosynthetic induction and relaxation within the canopy of rice and two wild relatives |
title_full_unstemmed | Dynamics of photosynthetic induction and relaxation within the canopy of rice and two wild relatives |
title_short | Dynamics of photosynthetic induction and relaxation within the canopy of rice and two wild relatives |
title_sort | dynamics of photosynthetic induction and relaxation within the canopy of rice and two wild relatives |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8459282/ https://www.ncbi.nlm.nih.gov/pubmed/34594547 http://dx.doi.org/10.1002/fes3.286 |
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