76 results about "Protoporphyrinogen oxidase" patented technology

The present disclosure provides methods, recombinant DNA molecules, recombinant host cells containing the DNA molecules, and transgenic and genetically engineered plant cells, plant tissue, seeds and plants which contain and express an herbicide resistant protoporphyrinogen oxidase such that they germinate from seed and grow in the presence of an amount of herbicide where the parent plant does not. Such plants are especially appropriate for use in agriculture or horticulture where herbicides are used to kill undesirable plants which might contaminate or compete with the transgenic plant of interest.

The present disclosure provides methods, recombinant DNA molecules, recombinant host cells containing the DNA molecules, and transgenic plant cells, plant tissue, seeds and plants which contain and express an herbicide resistant protoporphyrinogen oxidase such that they germinate from seed and grow in the presence of an amount of herbicide where the parent plant does not. Such plants are especially appropriate for use in agriculture or horticulture where herbicides are used to kill undesirable plants which might contaminate or compete with the transgenic plant of interest.

The present invention refers to a method for controlling undesired vegetation at a plant cultivation site, the method comprising the steps of providing, at said site, a plant that comprises at least one nucleic acid comprising a nucleotide sequence encoding a wild-type or a mutated protoporphyrinogen oxidase (PPO) which is resistant or tolerant to a benzoxazinone-derivative herbicide by applying to said site an effective amount of said herbicide. The invention further refers to plants comprising wild-type or mutated PPO enzymes, and methods of obtaining such plants.

An aqueous herbicidal composition which comprises (a) water-soluble pesticidal ingredient such as herbicidal active ingredient, (b) water-insoluble pesticidal ingredient such as herbicidal active ingredient inhibiting protoporphyrinogenoxidase, (c) at least one selected from nonionic surfactants and anionic surfactants, (d) anionic water-soluble polymer, (e) hydrophobic organic solvent and (f) water is a highly stable aqueous composition in which degradation of the active ingredient is suppressed.

The present invention refers to a method for controlling undesired vegetation at a plant cultivation site, the method comprising the steps of providing, at said site, a plant that comprises at least one nucleic acid comprising a nucleotide sequence encoding a wild-type or a mutated protoporphyrinogen oxidase (PPO) which is resistant or tolerant to a benzoxazinone-derivative herbicide by applying to said site an effective amount of said herbicide. The invention further refers to plants comprising wild-type or mutated PPO enzymes, and methods of obtaining such plants.

An aqueous herbicidal composition which comprises (a) water-soluble pesticidal ingredient such as herbicidal active ingredient, (b) water-insoluble pesticidal ingredient such as herbicidal active ingredient inhibiting protoporphyrinogenoxidase, (c) at least one selected from nonionic surfactants and anionic surfactants, (d) anionic water-soluble polymer, (e) hydrophobic organic solvent and (f) water is a highly stable aqueous composition in which degradation of the active ingredient is suppressed.

The present invention provides methods to confer resistance to protoporphyrinogen-inhibiting herbicides onto crop plants. Resistance is conferred by genetically engineering the plants to express cloned DNA encoding a protoporphyrinogen oxidase resistant to porphyric herbicides. If such resistant crop plants are cultivated, utilization of these herbicides on fields of these crop plants becomes feasible. This should allow for simpler and more effective weed management, and increase the value of these herbicides for agricultural use. Furthermore, the present invention provides plants, algae, plant cells, and algal cells which have been made resistant to protoporphyrinogen oxidase-inhibiting herbicides by the subject methods using a herbicide-resistant protoporphyrinogen oxidase gene that has been prepared by genetic engineering methods. In addition, the present invention provides methods to evaluate the inhibitory effects of test compounds on protoporphyrinogen oxidase activity, as well as methods to identify protoporphyrinogen oxidase inhibitors among test compounds. Preferred cloned DNA fragments encoding protoporphyrinogen oxidase enzymes resistant to porphyric herbicides are also described.

Protoprophyrinogen oxidase enzyme-inhibiting herbicides are useful in a method for controlling unwanted ground shoots of vines and other trunk vegetation. Of particular interest is the use of carfentrazone ethyl and certain metabolites thereof for control of unwanted ground shoots of vines and other trunk vegetation.

The invention relates to biotechnology and provides novel recombinant DNA molecules and engineered proteins for conferring tolerance to protoporphyrinogen oxidase-inhibitor herbicides. The invention also provides herbicide tolerant transgenic plants, seeds, cells, and plant parts containing the recombinant DNA molecules, as well as methods of using the same.

A method for producing a transgenic plant which is resistant to a weed control compound is disclosed. In the inventive method, a nucleotide sequence encoding a variant of plant protoporphyrinogen IX oxidase that lacks the FAD binding sequence is introduced into a plant cell. The nucleotide sequence is expressed and the plant cell is regenerated into a transgenic plant.

Provided is a technology for conferring more enhanced tolerance of plants and / or algae against herbicides and / or more greatly enhancing tolerance by using amino acid variants of protoporphyrinogen IXoxidases derived from microorganisms.

Protoporphyrinogen oxidase enzyme-inhibiting herbicides are useful in a method for controlling unwanted cyanobacteria algae, mosses, liverworts, hornworts and other bryophytes. Of particular interest is the use of carfentrazone ethyl and certain metabolites thereof for control of unwanted cyanobacteria algae, mosses, liverworts, hornworts and other bryophytes.