ArticleAnnals of botany2011
Ammonia emission from rice leaves in relation to photorespiration and genotypic differences in glutamine synthetase activity.
Article in Annals of botany, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed, 56 citations in OpenAlex.
- Functional Differences of Glutamine Synthetase Isoenzymes in Wheat Canopy Ammonia Exchange.International journal of molecular sciences · 2026Article
- Synthetic photorespiratory bypass improves rice productivity by enhancing photosynthesis and nitrogen uptake.The Plant cell · 2024Article
- Measuring the Release of Ammonia from Leaves.Methods in molecular biology (Clifton, N.J.) · 2024Article
- Rewiring of primary metabolism for ammonium recycling under short-term low COFrontiers in plant science · 2024Article
- The Evolution of C4 Photosynthesis in Flaveria (Asteraceae): Insights from the Flaveria linearis Complex.Plant physiology · 2023Article
- Genetic Diversity in Nitrogen Fertiliser Responses and N Gas Emission in Modern Wheat.Frontiers in plant science · 2022Article
- Responses of Manila Grass (Zoysia matrella) to chilling stress: From transcriptomics to physiology.PloS one · 2020Article
- Opposite fates of the purine metabolite allantoin under water and nitrogen limitations in bread wheat.Plant molecular biology · 2019Article
- Low assimilation efficiency of photorespiratory ammonia in conifer leaves.Journal of plant research · 2018Article
- The ferredoxin-dependent glutamate synthase (OsFd-GOGAT) participates in leaf senescence and the nitrogen remobilization in rice.Molecular genetics and genomics : MGG · 2017Article
- Crystal Structure of an Ammonia-Permeable Aquaporin.PLoS biology · 2016Article
- New isoforms and assembly of glutamine synthetase in the leaf of wheat (Triticum aestivum L.).Journal of experimental botany · 2015Article
- The benefits of photorespiratory bypasses: how can they work?Plant physiology · 2015Article
- Comparison of leaf proteomes of cassava (Manihot esculenta Crantz) cultivar NZ199 diploid and autotetraploid genotypes.PloS one · 2014Article
- Elevated atmospheric CO2 decreases the ammonia compensation point of barley plants.Journal of experimental botany · 2013Article
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsRice (Oryza sativa) plants lose significant amounts of volatile NH(3) from their leaves, but it has not been shown that this is a consequence of photorespiration. Involvement of photorespiration in NH(3) emission and the role of glutamine synthetase (GS) on NH(3) recycling were investigated using two rice cultivars with different GS activities.
methodsNH(3) emission (AER), and gross photosynthesis (P(G)), transpiration (Tr) and stomatal conductance (g(S)) were measured on leaves of 'Akenohoshi', a cultivar with high GS activity, and 'Kasalath', a cultivar with low GS activity, under different light intensities (200, 500 and 1000 µmol m(-2) s(-1)), leaf temperatures (27·5, 32·5 and 37·5 °C) and atmospheric O(2) concentrations ([O(2)]: 2, 21 and 40 %, corresponding to 20, 210 and 400 mmol mol(-1)). KEY
resultsAn increase in [O(2)] increased AER in the two cultivars, accompanied by a decrease in P(G) due to enhanced photorespiration, but did not greatly influence Tr and g(S). There were significant positive correlations between AER and photorespiration in both cultivars. Increasing light intensity increased AER, P(G), Tr and g(S) in both cultivars, whereas increasing leaf temperature increased AER and Tr but slightly decreased P(G) and g(S). 'Kasalath' (low GS activity) showed higher AER than 'Akenohoshi' (high GS activity) at high light intensity, leaf temperature and [O(2)].
conclusionsOur results demonstrate that photorespiration is strongly involved in NH(3) emission by rice leaves and suggest that differences in AER between cultivars result from their different GS activities, which would result in different capacities for reassimilation of photorespiratory NH(3). The results also suggest that NH(3) emission in rice leaves is not directly controlled by transpiration and stomatal conductance.
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