194 results about "Plant development" patented technology

The present invention provides compositions and methods for modulating plant development by modulating the expression or activity of plant polycomb genes including FIE and MEA.

Methods and compositions for modulating plant development are provided. Nucleotide sequences and amino acid sequences encoding Ovule Development Protein 2 (ODP2) proteins are provided. The sequences can be used in a variety of methods including modulating development, developmental pathways, altering oil content in a plant, increasing transformation efficiencies, modulating stress tolerance, and modulating the regenerative capacity of a plant. Transformed plants, plant cells, tissues, and seed are also provided.

The present invention is directed to methods for delaying a plant development process comprising exposing a plant or plant part to one or more bacteria or enzymes. In specific embodiments, the one or more bacteria are selected from the group consisting of Rhodococcus spp., Pseudomonas chloroaphis, Brevibacterium ketoglutamicum, and a mixture comprising any combination of these bacteria. Apparatuses for delaying a plant development process comprising a catalyst that comprises one or more of the above bacteria.

Agent for the agronomic treatment of a living plant supported by a moist substrate, for example a soil, wherein said agent is in the solid and divided state, and comprises solid particles containing at least one active entity for the agronomic treatment, characterized in that each particle comprises: —a nucleus consisting of a grain of a solid material which is inert with respect to the substrate, comprising an inner developed surface area which is greater than its apparent surface area and, as a result, suitable for adsorption and/or absorption, —the active entity for agronomic treatment, absorbed into the grain and/or adsorbed at the surface of said grain, —a membrane encapsulating the nucleus comprising the active entity, consisting of at least one hydrophilic polymer which is permeable to the outside with respect to the active entity, when it is in direct or indirect contact with the moist substrate.

An intelligent plant development library environment is presented. Contemplated environments comprise an EPC knowledge system capable of incorporating know-how of one or more construction firms in the form of assembly objects. Assembly objects represent construction components (e.g., bolts, cable trays, pipes, processing units, deliverables, etc.) that can be incorporated into a plant design. Assembly objects are stored in an assembly database and include available contexts considered relevant to the assembly objects. An inference engine is utilized to derive a specified context related to a plant design from one or more design tools. The inference engine applies rule sets to infer which assembly objects to instantiate as construction objects. The inference engine can further configure the design tools to incorporate the instantiated construction objects into a plant construction project model. Example rule sets include forward chaining rules, backward chaining rules, case-based reasoning rules, inductive reasoning rules, or abductive reasoning rules.

This invention relates to constructs for the conditional or regulated expression of transgenes in plants using site-specific recombinase systems. The constructs comprise a variety of constitutive, inducible, tissue specific or developmental stage-specific promoters operably linked to either a transgene or the elements of one or more site-specific recombinase system. By matching promoters, responsive to various inducers, plant tissues or plant developmental states with the recombinase systems, stop fragments and transgenes, virtually any trait may be expressed at any plant development stage or in any plant generation.

The invention belongs to the biology and biological technical field, and discloses a plant in-situ regeneration and agrobacterium transformation method. Agrobacterium is coated on a wound of a plant root stock, a callus which is generated by inducing a plant in-vitro tissue on a culture medium is used as a scion, and the scion is grafted onto the root stock through a cleft graft method. Root stock wound cells can realize in-situ organ regeneration under the induction of an exogenous callus, so that a transgenic regeneration bud can be obtained. Compared with the traditional plant genetic transformation method combining the tissue culture, a one-by-one genotype fumbling tissue culture condition can be avoided, a novel technological platform can be provided to the genetic transformation of plants, meanwhile, a novel plant regeneration system is established, and a research system is provided to the study of plant development biology.

Expressed Sequence Tags (ESTs) isolated from cotton are disclosed. The ESTs provide a unique molecular tool for the targeting and isolation of novel genes for plant protection and improvement. The disclosed ESTs have utility in the development of new strategies for understanding critical plant developmental and metabolic pathways. The disclosed ESTs have particular utility in isolating genes and promoters, identifying and mapping the genes involved in developmental and metabolic pathways, and determining gene function. Sequence homology analyses using the ESTs provided in the present invention, will result in more efficient gene screening for desirable agronomic traits. An expanding database of these select pieces of the plant genomics puzzle will quickly expand the knowledge necessary for subsequent functional validation, a key limitation in current plant biotechnology efforts.

A light harvester or collector collects solar radiation from an unshaded location adjacent a growing plant. The light harvester can be either imaging (e.g., parabolic reflectors) or non-imaging (e.g., compound parabolic concentrator). The concentrated solar radiation is projected into a light transmitter that conducts the light through the plant's outer canopy and into the inner canopy to a diffuser which disperses and reradiates the light into the inner canopy. The diffused light transforms a non-productive, potentially leafless zone of the plant into a productive zone so that more fruit can be produced per volume of land surface. The system can prevent transmission of infrared into the inner canopy so that the inner canopy zone is not heated and the amount of water lost to transpiration is reduced. The system can also modify other spectral components to affect plant development and to control pests and diseases.

Alfin1 cDNA encodes a putative transcription factor associated with salt tolerance in alfalfa (Medicago sativa L). The recombinant protein binds DNA in a sequence specific manner, including promoter fragments of the salt inducible gene MsPRP2. Alfin1 function was tested in transgenic alfalfa under the control of the 35S promoter in the sense and antisense orientations with the endogenous MsPRP2 as a reporter gene. Calli overexpressing Alfin1 were more resistant to growth inhibition by 171 mM NaCl than vector transformed controls, while calli expressing Alfin1 antisense were more sensitive to salt inhibition. Transgenic plants overexpressing Alfin1 in the sense orientation grew well. In contrast, the antisense transgenic plants grew poorly in soil, demonstrating that Alfin1 expression is essential for normal plant development. Transgenic calli and plant roots overexpressing Alfin1 showed enhanced levels of endogenous MsPRP2 mRNA accumalution. However, MsPRP2 mRNA accumulation was also regulated in a tissue specific manner as shown in leaves of transgenics overexpressing Alfin1. These results suggest that Alfin1 acts as a transcriptional regulator in plants and MsPRP2 expression in alfalfa. Alfin1 overexpressing transgenics showed salinity tolerance comparable to one of our salt-tolerant plants, indicating that Alfin1 also functions in gene regulation in salt tolerance.

A method of improving the growth of plants belonging to the family Cannabaceae sensu stricto by providing a plant nutrient solution about the plant roots and a gas mixture circulating about the plant shoot; by selecting the gas mixture and plant nutrient solution temperature independently of the other; and providing a plant nutrient solution to gas mixture temperature differential of approximately 0° F. or of at least approximately 15° F. during different phases of plant development, in order to change the plant development to improve a desired plant organ for industrial, scientific, and medical purposes. Infection of plants by Pythium, Fusarium, Verticillium, and Rizoctonia are treated or prevented by selecting a gas mixture temperature that is approximately 65 to 85° F. and a plant nutrient solution temperature that is approximately 35 to 65° F.

Expressed Sequence Tags (ESTs) isolated from soybean are disclosed. The ESTs provide a unique molecular tool for the targeting and isolation of novel genes for plant protection and improvement. The disclosed ESTs have utility in the development of new strategies for understanding critical plant developmental and metabolic pathways. The disclosed ESTs have particular utility in isolating genes and promoters, identifying and mapping the genes involved in developmental and metabolic pathways, and determining gene function. Sequence homology analyses using the ESTs provided in the present invention, will result in more efficient gene screening for desirable agronomic traits. An expanding database of these select pieces of the plant genomics puzzle will quickly expand the knowledge necessary for subsequent functional validation, a key limitation in current plant biotechnology efforts.

The element is intended to be placed in a receptacle for the cultivation of at least one plant, and includes:

a substantially solid body including a substrate adapted to enable said plant to develop;

at least one seed of said plant disposed on the body in at least one seed receiving area;

a layer for holding the seed(s) in said receiving area, comprising a dried mineral powder.

The holding layer results from drying a deposition of a holding composition including a mineral powder suspended in water.

Methods and compositions for modulating plant development are provided. Polynucleotide sequences and amino acid sequences encoding isopentenyl transferase (IPT) polypeptides are provided. The sequences can be used in a variety of methods including modulating root development, modulating floral development, modulating leaf and/or shoot development, modulating senescence, modulating seed size and/or weight, and modulating tolerance of plants to abiotic stress. Polynucleotides comprising an IPT promoter are also provided. The promoter can be used to regulate expression of a sequence of interest. Transformed plants, plant cell, tissues, and seed are also provided.

The invention discloses a seedling and seed specific expression GmPLPA gene promoter for soybean and application thereof. The promoter provided by the invention is a deoxyribonucleic acid (DNA) molecule shown as a sequence 1 or partial segment of the molecule. The GmPLPA gene promoter is cloned in the soybean for the first time. The promoter of the invention can be applied at a specific stage (such as a seedling stage) of plant development or to a specific texture (such as seed) expression target gene to avoid resource waste caused by the starting of the target gene by a constitutive promoterand has the advantages of high specificity and high efficiency. The promoter provided by the invention can be applied to a new transgenic plant variety with high directive breeding safety and has great value for plant breeding and the research on the function and acting mechanism of the target gene.