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: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Wiley
2021
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| Acceso en línea: | https://hdl.handle.net/10568/164279 |
| _version_ | 1855514043464286208 |
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| author | Acevedo-Siaca, Liana G. Dionora, Jacqueline Laza, Rebecca Quick, William Paul Long, Stephen P. |
| author_browse | Acevedo-Siaca, Liana G. Dionora, Jacqueline Laza, Rebecca Long, Stephen P. Quick, William Paul |
| author_facet | Acevedo-Siaca, Liana G. Dionora, Jacqueline Laza, Rebecca Quick, William Paul Long, Stephen P. |
| author_sort | Acevedo-Siaca, Liana G. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| 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 CO2 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 | Journal Article |
| id | CGSpace164279 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace1642792025-05-14T10:23:49Z Dynamics of photosynthetic induction and relaxation within the canopy of rice and two wild relatives Acevedo-Siaca, Liana G. Dionora, Jacqueline Laza, Rebecca Quick, William Paul Long, Stephen P. 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 CO2 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. 2021-08 2024-12-19T12:53:42Z 2024-12-19T12:53:42Z Journal Article https://hdl.handle.net/10568/164279 en Open Access Wiley Acevedo‐Siaca, Liana G.; Dionora, Jacqueline; Laza, Rebecca; Paul Quick, William and Long, Stephen P. 2021. Dynamics of photosynthetic induction and relaxation within the canopy of rice and two wild relatives. Food and Energy Security, Volume 10, no. 3 |
| spellingShingle | Acevedo-Siaca, Liana G. Dionora, Jacqueline Laza, Rebecca Quick, William Paul 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 |
| url | https://hdl.handle.net/10568/164279 |
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