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 Beth Leonelli, Stephane T. Gabilly
Life of this patent
Estimating the term…
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.
Claims20
A genetically modified higher plant comprising genetic modifications that increase expression of both a zeaxanthin epoxidase (ZEP) polypeptide and a violaxanthin de-epoxidase (VDE) polypeptide as compared to expression of the ZEP polypeptide and the VDE polypeptide in a control plant without the genetic modifications grown under the same conditions, wherein the genetically modified higher plant is a tracheophyte, wherein the genetically modified plant comprises at least endogenous levels of an endogenous photosystem II subunit S (PsbS) polypeptide, wherein the expression of the VDE polypeptide is increased by expressing a transfected nucleotide sequence encoding the VDE polypeptide in the genetically modified plant and/or by a genetic modification in a promoter of a nucleotide sequence encoding the VDE polypeptide, and wherein the expression of the ZEP polypeptide is increased by expressing a transfected nucleotide sequence encoding the ZEP polypeptide in the genetically modified plant and/or by a genetic modification in a promoter of a nucleotide sequence encoding the ZEP polypeptide.
Dependencies are inferred from the claim text.