72 results about "Plant morphology" patented technology

A family 1 cellulose-binding-domain (CBD) encoding gene from Phytophthora infestans was used to develop transgenic Bintje potato plants. Tests with detached leaflets showed no evidence of increased or decreased resistance to P. infestans, in comparison with the susceptible Bintje controls. Changes in plant morphology were most evident in the CBD1 multicopy transgenics. Plant height increases were evident in the later growth stages, along with earlier flowering and the ability to produce seed balls. While Bintje control plants are male and female sterile, the multicopy transgenics were male sterile and female fertile. Crosses made into Bintje demonstrated the ability to transfer P. infestans targeted R genes, as well as genes responsible for color and tuber shape, into Bintje germplasm. Selection for the absence of the CBD1 transgene should allow for immediate use of the material.

The invention relates to the isolation and characterization of a maize gene, RAMOSA3 (RA3), responsible for meristem development and inflorescence development including branching. The gene, gene product, and regulatory regions may be used to manipulate branching, meristem growth, inflorescence development and arrangement, and ultimately to improve yield of plants. The invention includes the gene and protein product as well as the use of the same for temporal and spatial expression in transgenic plants to alter plant morphology and affect yield in plants. The invention also includes the gene and protein product for SISTER OF RAMOSA3 (SRA).

The present invention relates to methods for stimulating root growth and / or enhancing the formation of lateral or adventitious roots and / or altering root geotropism comprising expression of a cytokinin oxidase or comprising expression of another protein that reduces the level of active cytokinins in plants or plant parts. Also provided by the present invention are methods for increasing seed size and / or weight, embryo size and / or weight, and cotyledon size and / or weight. The methods comprise expression of a cytokinin oxidase or expression of another protein that reduces the level of active cytokinins in plants or plant parts. Methods and compositions for increasing seed yield are also provided. The invention also relates to isolated plant cytokinin oxidase proteins, nucleic acid sequences encoding cytokinin oxidase proteins as well as to vectors, host cells, transgenic cells and plants comprising such sequences. The use of these sequences for improving root-related characteristics including increasing yield and / or enhancing early vigor and / or modifying root / shoot ratio and / or improving resistance to lodging and / or increasing drought tolerance and / or promoting in vitro propagation of explants and / or modifying cell fate and / or plant development and / or plant morphology and / or plant biochemistry and / or plant physiology, is also provided. The invention also relates to methods for identifying and obtaining proteins and compounds interacting with cytokinin oxidase proteins as well as the use of such proteins and / or compounds as plant growth regulators or herbicides.