Enhanced thylakoid photoprotection can increase yield and canopy radiation use efficiency in rice
High sunlight can raise plant growth rates but can potentially cause cellular damage. The likelihood of deleterious effects is lowered by a sophisticated set of photoprotective mechanisms, one of the most important being the controlled dissipation of energy from chlorophyll within photosystem II (PS...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Publishing Group
2018
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| Online Access: | https://eprints.nottingham.ac.uk/50438/ |
| _version_ | 1848798251282595840 |
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| author | Hubbart, Stella Smillie, Ian R.A. Heatley, Matthew Swarup, Ranjan Foo, Chuan Ching Zhao, Liang Murchie, Erik H. |
| author_facet | Hubbart, Stella Smillie, Ian R.A. Heatley, Matthew Swarup, Ranjan Foo, Chuan Ching Zhao, Liang Murchie, Erik H. |
| author_sort | Hubbart, Stella |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | High sunlight can raise plant growth rates but can potentially cause cellular damage. The likelihood of deleterious effects is lowered by a sophisticated set of photoprotective mechanisms, one of the most important being the controlled dissipation of energy from chlorophyll within photosystem II (PSII) measured as non-photochemical quenching (NPQ). Although ubiquitous, the role of NPQ in plant productivity remains uncertain because it momentarily reduces the quantum efficiency of photosynthesis. Here we used plants overexpressing the gene encoding a central regulator of NPQ, the protein PsbS, within a major crop species (rice) to assess the effect of photoprotection at the whole canopy scale. We accounted for canopy light interception, to our knowledge for the first time in this context. We show that in comparison to wild-type plants, psbS overexpressors increased canopy radiation use efficiency and grain yield in fluctuating light, demonstrating that photoprotective mechanisms should be altered to improve rice crop productivity. |
| first_indexed | 2025-11-14T20:16:48Z |
| format | Article |
| id | nottingham-50438 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T20:16:48Z |
| publishDate | 2018 |
| publisher | Nature Publishing Group |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-504382018-03-22T12:20:06Z https://eprints.nottingham.ac.uk/50438/ Enhanced thylakoid photoprotection can increase yield and canopy radiation use efficiency in rice Hubbart, Stella Smillie, Ian R.A. Heatley, Matthew Swarup, Ranjan Foo, Chuan Ching Zhao, Liang Murchie, Erik H. High sunlight can raise plant growth rates but can potentially cause cellular damage. The likelihood of deleterious effects is lowered by a sophisticated set of photoprotective mechanisms, one of the most important being the controlled dissipation of energy from chlorophyll within photosystem II (PSII) measured as non-photochemical quenching (NPQ). Although ubiquitous, the role of NPQ in plant productivity remains uncertain because it momentarily reduces the quantum efficiency of photosynthesis. Here we used plants overexpressing the gene encoding a central regulator of NPQ, the protein PsbS, within a major crop species (rice) to assess the effect of photoprotection at the whole canopy scale. We accounted for canopy light interception, to our knowledge for the first time in this context. We show that in comparison to wild-type plants, psbS overexpressors increased canopy radiation use efficiency and grain yield in fluctuating light, demonstrating that photoprotective mechanisms should be altered to improve rice crop productivity. Nature Publishing Group 2018-03-22 Article PeerReviewed application/pdf en cc_by https://eprints.nottingham.ac.uk/50438/8/s42003-018-0026-6.pdf Hubbart, Stella, Smillie, Ian R.A., Heatley, Matthew, Swarup, Ranjan, Foo, Chuan Ching, Zhao, Liang and Murchie, Erik H. (2018) Enhanced thylakoid photoprotection can increase yield and canopy radiation use efficiency in rice. Communications Biology, 1 . 22/1-22/12. ISSN 2399-3642 light responses; non-photochemical quenching https://www.nature.com/articles/s42003-018-0026-6 doi:10.1038/s42003-018-0026-6 doi:10.1038/s42003-018-0026-6 |
| spellingShingle | light responses; non-photochemical quenching Hubbart, Stella Smillie, Ian R.A. Heatley, Matthew Swarup, Ranjan Foo, Chuan Ching Zhao, Liang Murchie, Erik H. Enhanced thylakoid photoprotection can increase yield and canopy radiation use efficiency in rice |
| title | Enhanced thylakoid photoprotection can increase yield and canopy radiation use efficiency in rice |
| title_full | Enhanced thylakoid photoprotection can increase yield and canopy radiation use efficiency in rice |
| title_fullStr | Enhanced thylakoid photoprotection can increase yield and canopy radiation use efficiency in rice |
| title_full_unstemmed | Enhanced thylakoid photoprotection can increase yield and canopy radiation use efficiency in rice |
| title_short | Enhanced thylakoid photoprotection can increase yield and canopy radiation use efficiency in rice |
| title_sort | enhanced thylakoid photoprotection can increase yield and canopy radiation use efficiency in rice |
| topic | light responses; non-photochemical quenching |
| url | https://eprints.nottingham.ac.uk/50438/ https://eprints.nottingham.ac.uk/50438/ https://eprints.nottingham.ac.uk/50438/ |