Improving photosynthesis and crop productivity by accelerating recovery from photoprotection

Kromdijk, Johannes and Glowacka, Katarzyna and Leonelli, Lauriebeth and Gabilly, Stephane T. and Iwai, Masakazu and Niyogi, Krishna K. and Long, Stephen P. (2016) Improving photosynthesis and crop productivity by accelerating recovery from photoprotection. Science, 354 (6314). pp. 857-861. ISSN 0036-8075

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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.

Item Type:
Journal Article
Journal or Publication Title:
Science
Additional Information:
© 2017 American Association for the Advancement of Science. All rights Reserved.
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1000
Subjects:
ID Code:
83711
Deposited By:
Deposited On:
03 Jan 2017 16:14
Refereed?:
Yes
Published?:
Published
Last Modified:
26 Sep 2020 04:24