The present disclosure relates to genetically modified cells containing mitochondria that have been transformed with a polynucleotide encoding a phosphite dehydrogenase enzyme, such that the cells can utilize phosphite as a phosphorus source.

Methods and materials for modulating biomass composition in plants are disclosed. For example, nucleic acids encoding biomass composition-modulating polypeptides are disclosed as well as methods for using such nucleic acids to transform plant cells. Also disclosed are plants having altered biomass composition and plant products produced from plants having altered biomass composition.

Provided are isolated polypeptides which are at least 80% homologous to SEQ ID NOs: 182-184, 186-202, 204-216, 219-223, 225, 227-232, 235-236, 238, 240-260, 262-268, 270-275, 277-287, 289-297, 3651-3671, 3686, 3720-3721, 3724, 3727, 3735, 3754, 3774, 3795-4304, 4316, 4374, 4425, 4464, 4481-4813, 4824, 4833, 4843-4844, 4867-4869, 4888, 4890-4891, 5005-5050, 5053-5070, 5093, 5217, 5231, 5233, 5239, 5246, 5255, 5257-5296, 5412, 5415-5429, 5447-5456, 5465-5673, 5675-5686, 5688-5695, 5697-5698, 5700, 5702-5707, 5709-5715, 5717-5785, 5831, 5869, 5980, 6010-6043, 6045-6053, 6055-6093, 6132, 6383, 6405, 6493, 6523, 6533-6537, and 6563-6589, isolated polynucleotides encoding same, nucleic acid constructs comprising same, transgenic cells expressing same, transgenic plants expressing same and method of using same for increasing yield, abiotic stress tolerance, growth rate, biomass, vigor, oil content, photosynthetic capacity, seed yield, fiber yield, fiber quality, fiber length, and/or nitrogen use efficiency of a plant.

This disclosure provides transgenic plants having enhanced traits such as increased yield, increased nitrogen use efficiency and enhanced drought tolerance; propagules, progeny and field crops of such transgenic plants; and methods of making and using such transgenic plants. This disclosure also provides methods of producing hybrid seed from such transgenic plants, growing such seed and selecting progeny plants with enhanced traits. Also disclosed are transgenic plants with altered phenotypes which are useful for screening and selecting transgenic event for the desired enhanced trait.

This disclosure provides purified nucleic acids and polypeptides. Also provided are transgenic plants, seeds, and plant cells containing DNA for expression of the proteins that are useful for imparting enhanced agronomic trait(s) to transgenic crop plants, methods of making such plants and methods of making agricultural commodity including seeds and hybrid seeds from such plants.

Methods and materials for modulating biomass levels in plants are disclosed. For example, nucleic acids encoding biomass-modulating polypeptides are disclosed as well as methods for using such nucleic acids to transform plant cells. Also disclosed are plants having increased biomass levels and plant products produced from plants having increased biomass levels.

The invention provides methods and materials for increasing at least one of root biomass and above-ground biomass and in a Poaceae plant by expressing a PEAPOD protein, or fragment thereof, in the Poaceae plant. The invention also provides methods and materials producing a Poaceae plant with at least one of increased root biomass and increased above-ground biomass, by expressing a PEAPOD protein, or fragment thereof, in the Poaceae plant.

Ascorbate protects tissues against damage caused by reactive oxygen species (ROS) produced through normal metabolism or generated from stress. The inositol route to AsA involves four enzymes: myo-inositol oxygenase, glucuronate reductase, gluconolactonase (GNL), and L-gulono-1,4-lactone oxidase (GulLO). Eighteen putative GNLs were identified in Arabidopsis, one of which, AtGNL, is interesting because it possesses a chloroplastic signal peptide. Knockouts on this gene had lower foliar AsA and stunted growth compared to controls. The functional gene restored the phenotype of the knockouts, and those plants had higher AsA content, enhanced photosynthetic capacity, and higher seed yield.

The present invention relates to excision of explant material comprising meristematic tissue from cotton seeds. Methods for tissue preparation, storage, transformation, and selection or identification of transformed plants are disclosed, as are transformable meristem tissues and plants produced by such methods, and apparati for tissue preparation.

Provided are isolated polypeptides which are at least 80% homologous to SEQ ID NOs: 182-184, 186-202, 204-216, 219-223, 225, 227-232, 235-236, 238, 240-260, 262-268, 270-275, 277-287, 289-297, 3651-3671, 3686, 3720-3721, 3724, 3727, 3735, 3754, 3774, 3795-4304, 4316, 4374, 4425, 4464, 4481-4813, 4824, 4833, 4843-4844, 4867-4869, 4888, 4890-4891, 5005-5050, 5053-5070, 5093, 5217, 5231, 5233, 5239, 5246, 5255, 5257-5296, 5412, 5415-5429, 5447-5456, 5465-5673, 5675-5686, 5688-5695, 5697-5698, 5700, 5702-5707, 5709-5715, 5717-5785, 5831, 5869, 5980, 6010-6043, 6045-6053, 6055-6093, 6132, 6383, 6405, 6493, 6523, 6533-6537, and 6563-6589, isolated polynucleotides encoding same, nucleic acid constructs comprising same, transgenic cells expressing same, transgenic plants expressing same and method of using same for increasing yield, abiotic stress tolerance, growth rate, biomass, vigor, oil content, photosynthetic capacity, seed yield, fiber yield, fiber quality, fiber length, and/or nitrogen use efficiency of a plant.