Abstract
Crop leaves in full sunlight dissipate damaging excess absorbed light energy as heat. When sunlit leaves are shaded by clouds or other leaves, this protective dissipation continues for many minutes and reduces photosynthesis. Calculations have shown that this could cost field crops up to 20% of their potential yield. Here, we describe the bioengineering of an accelerated response to natural shading events in Nicotiana (tobacco), resulting in increased leaf carbon dioxide uptake and plant dry matter productivity by about 15% in fluctuating light. Because the photoprotective mechanism that has been altered is common to all flowering plants and crops, the findings provide proof of concept for a route to obtaining a sustainable increase in productivity for food crops and a much-needed yield jump.
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Claims 3
Claim · model-written summary
Accelerated photoprotection recovery increased tobacco leaf carbon dioxide uptake in fluctuating light.
- Taxon
- Nicotiana (tobacco)
Nicotiana tabacume0 - Treatment
- bioengineering of an accelerated response to natural shading eventse0
- Outcome
- leaf carbon dioxide uptakee0
- Direction
- increasede0
- Qualifier
- fluctuating lighte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Here, we describe the bioengineering of an accelerated response to natural shading events in Nicotiana (tobacco), resulting in increased leaf carbon dioxide uptake and plant dry matter productivity by about 15% in fluctuating light.”
Claim · model-written summary
Accelerated photoprotection recovery increased tobacco dry matter productivity by about 15% in fluctuating light.
- Taxon
- Nicotiana (tobacco)Nicotiana tabacume0
- Treatment
- bioengineering of an accelerated response to natural shading eventse0
- Outcome
- plant dry matter productivitye0
- Direction
- increasede0
- Value
- about 15%e0
- Qualifier
- fluctuating lighte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Here, we describe the bioengineering of an accelerated response to natural shading events in Nicotiana (tobacco), resulting in increased leaf carbon dioxide uptake and plant dry matter productivity by about 15% in fluctuating light.”
Claim · model-written summary
The findings provide proof of concept for increasing food crop productivity by accelerating photoprotection recovery.
Verbatim
e0“the findings provide proof of concept for a route to obtaining a sustainable increase in productivity for food crops and a much-needed yield jump.”
The same questions in other papers
shade · yield · Nicotiana tabacum (tobacco)Positive and negative results
3 in the opposite direction
- negative
- negative
- negative
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.