Abstract: The invention provides isolated maize EIN3, EBF1 and EIN5 nucleic acids and encoded proteins which are associated with ethylene signaling in plants. The present invention provides methods and compositions relating to altering ethylene sensitivity in plants. The invention further provides recombinant expression cassettes, host cells, transgenic plants and antibody compositions.

Abstract: The invention provides isolated maize EIN3, EBF1 and EIN5 nucleic acids and encoded proteins which are associated with ethylene signaling in plants. The present invention provides methods and compositions relating to altering ethylene sensitivity in plants. The invention further provides recombinant expression cassettes, host cells, transgenic plants and antibody compositions.

Abstract: The invention provides methods for improving plant yield, particularly under nitrogen limiting conditions. According to the invention, applicants have discovered that modulating ACC synthase activity in plants improves yield of plants, even when grown under low nitrogen conditions. The same plants, while demonstrating improved yield over non-modified plants, exhibited no deleterious effects under normal nitrogen conditions. The invention further provides methods using recombinant expression cassettes, host cells and transgenic plants.

Abstract: The invention provides methods for improving plant yield, particularly under nitrogen limiting conditions. According to the invention, applicants have discovered that modulating ACC synthase activity in plants improves yield of plants, even when grown under low nitrogen conditions. The same plants, while demonstrating improved yield over non-modified plants, exhibited no deleterious effects under normal nitrogen conditions. The invention further provides methods using recombinant expression cassettes, host cells and transgenic plants.

Abstract: Compositions and methods for modulating plant development and for increasing yield in a plant are provided. The compositions include a ZmWSPL sequence. Compositions of the invention comprise amino acid sequences and nucleotide sequences as well as variants and fragments thereof. Nucleotide sequences encoding the ZmWSPL protein are provided in DNA constructs for expression in a plant of interest are provided for modulating the level of a ZmWSPL sequence in a plant or a plant part are provided. The methods comprise introducing into a plant or plant part a heterologous polynucleotide comprising a ZmWSPL sequence of the invention. The level of the ZmWSPL polypeptide can be increased or decreased. Such method can be used to increase the yield in plants; in one embodiment, the method is used to increase grain yield in cereals.

Abstract: The invention provides isolated maize EIN3, ERF3, EBF1, EBF2, EIN5 nucleic acids which are associated with ethylene signaling in plants and their encoded proteins. The present invention provides methods and compositions relating to altering ethylene sensitivity in plants. The invention further provides recombinant expression cassettes, host cells, transgenic plants and antibody compositions.

Abstract: Methods for modulating plants using optimized ACC synthase down-regulation constructs are disclosed. Also disclosed are nucleotide sequences, constructs, vectors, and modified plant cells, as well as transgenic plants displaying increased seed and/or biomass yield, improved tolerance to abiotic stress such as drought or high plant density, improved nitrogen utilization efficiency and/or reduction in ethylene production.

Abstract: The invention provides isolated maize EIN3, EBF1 and EIN5 nucleic acids and encoded proteins which are associated with ethylene signaling in plants. The present invention provides methods and compositions relating to altering ethylene sensitivity in plants. The invention further provides recombinant expression cassettes, host cells, transgenic plants and antibody compositions.

Abstract: Methods and compositions for modulating plant response, development and yield under varying environmental conditions are provided. Methods employing MAPKKK are provided. The MAPKKK sequences are used in a variety of methods including modulating root development, modulating leaf and/or shoot development, modulating tolerance under abiotic stress and modulating yield. Transformed plants, plant cell, tissues, seed and expression vectors are also provided.

Abstract: The invention provides isolated maize EIN3, ERF3, EBF1, EBF2, EIN5 nucleic acids which are associated with ethylene signaling in plants and their encoded proteins. The present invention provides methods and compositions relating to altering ethylene sensitivity in plants. The invention further provides recombinant expression cassettes, host cells, transgenic plants and antibody compositions.

Abstract: The invention provides isolated maize EIN3, ERF3, EBF1, EBF2, EIN5 nucleic acids which are associated with ethylene signaling in plants and their encoded proteins. The present invention provides methods and compositions relating to altering ethylene sensitivity in plants. The invention further provides recombinant expression cassettes, host cells, transgenic plants and antibody compositions.

Abstract: Methods for modulating plants using optimized ACC synthase down-regulation constructs are disclosed. Also disclosed are nucleotide sequences, constructs, vectors, and modified plant cells, as well as transgenic plants displaying increased seed and/or biomass yield, improved tolerance to abiotic stress such as drought or high plant density, improved nitrogen utilization efficiency and/or reduction in ethylene production.

Abstract: Compositions and methods for regulating expression of heterologous nucleotide sequences in a plant are provided. Compositions include a novel nucleotide sequence for a maize actin depolymerization factor 4 promoter. Also provided is a method for expressing a heterologous nucleotide sequence in a plant using a promoter sequence disclosed herein.

Abstract: The invention provides methods for improving plant yield, particularly under nitrogen limiting conditions. According to the invention, applicants have discovered that modulating ACC synthase activity in plants improves yield of plants, even when grown under low nitrogen conditions. The same plants, while demonstrating improved yield over non-modified plants, exhibited no deleterious effects under normal nitrogen conditions. The invention further provides methods using recombinant expression cassettes, host cells and transgenic plants.

Abstract: Methods and compositions for modulating plant response, development and yield under varying environmental conditions are provided. Methods employing MAPKKK are provided. The MAPKKK sequences are used in a variety of methods including modulating root development, modulating leaf and/or shoot development, modulating tolerance under abiotic stress and modulating yield. Transformed plants, plant cell, tissues, seed and expression vectors are also provided.

Abstract: The invention provides isolated maize EIN3, ERF3, EBF1, EBF2, EIN5 nucleic acids which are associated with ethylene signaling in plants and their encoded proteins. The present invention provides methods and compositions relating to altering ethylene sensitivity in plants. The invention further provides recombinant expression cassettes, host cells, transgenic plants and antibody compositions.

Abstract: Compositions and methods for regulating expression of heterologous nucleotide sequences in a plant are provided. Compositions include a novel nucleotide sequence for a maize actin depolymerization factor 4 promoter. Also provided is a method for expressing a heterologous nucleotide sequence in a plant using a promoter sequence disclosed herein.