Transgenic plants with increased photosynthesis efficiency and growth
AssigneesThe Board of Trustees of the University of Illinois, The Regents of the University of California
InventorsStephen P. Long, Johannes Kromdijk, Katarzyna Glowacka, Krishna K. Niyogi, Laurie Leonelli, Stephane T. Gabilly
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Abstract
The present disclosure provides a transgenic plant comprising one or more nucleotide sequences encoding polypeptides selected from photosystem II subunit S (PsbS), zeaxanthin epoxidase (ZEP), and violaxanthin de-epoxidase (VDE), operably linked to at least one expression control sequence. Expression vectors for making transgenic plants, and methods for increasing biomass production and/or carbon fixation and/or growth in a plant comprising increasing expression of at least one of PsbS, ZEP and VDE polypeptides are also provided.
Claims39
A transgenic plant comprising one or more heterologous nucleotide sequences encoding
- photosystem II subunit S (PsbS), zeaxanthin epoxidase (ZEP), and violaxanthin de-epoxidase (VDE);
- PsbS and ZEP;
- or
- ZEP and VDE, operably linked to at least one expression control sequence.
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An expression vector comprising one or more nucleotide sequences encoding
- PsbS, ZEP and VDE;
- PsbS and ZEP;
- or
- ZEP and VDE, operably linked to at least one expression control sequence.
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A method for increasing growth, increasing photosynthetic efficiency, improving photoprotection efficiency, or improving quantum yield and CO2 fixation in a plant under fluctuating light conditions, comprising increasing expression in the plant of two or more polypeptides selected from the group consisting of PsbS, ZEP, and VDE, thereby producing a plant with increased expression of the two or more polypeptides as compared to a control plant.
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A method of increasing the rate of relaxation of non-photochemical quenching (NPQ) in a plant, comprising increasing expression in the plant of
- PsbS, ZEP and VDE;
- PsbS and ZEP;
- or
- ZEP and VDE, thereby producing a plant with increased expression of the two of more polypeptides as compared to a control plant.
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Dependencies are inferred from the claim text.