Abstract: There are described DNA sequences, which lead to the formation of polyfructans (levans), plasmids containing theses DNA sequences, as well as a process using these plasmids for preparing transgenic plants with polyfructan (levan) expression.

Abstract: Described are processes for producing plants whose flowering behavior is modified in comparison to wildtype plants, in particular for producing plants with early flower formation and flowering to an increased extent, and the plants resulting from that process. Further, the use of DNA molecules encoding sucrose carriers for modifying plant flowering behavior is described.

Abstract: The invention relates to a method of controlling harmful plants in rice crops, which comprises applying one or more compounds of the formula (I) or salts thereof whereR.sup.1 is an acyl radical from the group CO--R.sup.2, CS--R.sup.2, CO--OR.sup.3, CS--OR.sup.3, CO--SR.sup.4, CS--SR.sup.4, CO--NR.sup.5 R.sup.6 and CS--NR.sup.5 R.sup.6, and R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 and also X, Y and Z are as defined in the formula (I) of claim 1,to the area under cultivation, which contains the harmful plants and rice plants or their seeds, in an effective amount of from 0.0001 to 0.5 kg of a.i./ha.The compounds (I) are known per se. The invention also provides novel salts of the compounds (I).

Abstract: DNA sequences are described which on the codogenic strand code plant debranching enzymes, whose transcripts formed in transgenic plants code new proteins with the enzymatic activity of debranching enzymes which in transgenic plants reduce the degree of branching of amylopectin starch and DNA sequences which on the codogenic strand code plant debranching enzymes, whose transcripts formed in transgenic plants prevent the synthesis of proteins with the enzymatic activity of debranching enzymes, which in the transgenic plants increases the degree of branching of amylopectin starch, as well as plasmids on which these DNA sequences are localized, which can be introduced into plant cells and plants. Also described is a process for the production of plants changed by genetic engineering whose amylopectin starch is modified, and the modified starch obtainable from these plants.

Abstract: Herbicidal compositions comprisingA) at least one compound from the group of the substituted phenylsulfonylureas of the formula I and their agriculturally acceptable salts ##STR1## in which R.sup.1 is (C.sub.1 -C.sub.8)alkyl, (C.sub.3 -C.sub.4)alkenyl, (C.sub.3 -C.sub.4)alkynyl or (C.sub.1 -C.sub.4)alkyl which is mono- to tetrasubstituted by radicals selected from the group consisting of halogen and (C.sub.1 -C.sub.2)alkoxy,andB) at least one herbicidally active compound from the group of compounds composed ofBa) herbicides which act selectively against grasses in cereals and/or maize,Bb) herbicides which act selectively against dicots in cereals and/or maize,Bc) herbicides which act selectively against grasses and dicots in cereals and/or maize andBd) herbicides which act non-selectively against grass weeds and broad-leaved weeds in non-crop areas and/or selectively against grass weeds and broad-leaved weeds in transgenic crops.

Abstract: DNA molecules are described which code for a plastid 2-oxoglutarate/malate translocator, particularly from Spinacia oleracea, as well as bacteria, fungi, transgenic plant cells and transgenic plants containing such DNA molecules.

Abstract: There are described DNA sequences, that contain the coding region of an oligosaccharide transporter, whose introduction in a plant genome modifies the formation and transfer of storage materials in transgenic plants, plasmids, bacteria and plants containing these DNA sequences, a process for the preparation and transformation of yeast strains, that makes possible the identification of the DNA sequences of the plant oligosaccharide transporter of the invention, as well as the use of DNA sequences of the invention.

Abstract: This invention relates to DNA sequences and plasmids containing these sequences which can be integrated into a plant genome and which modify the activity of the sucrose-phosphate-synthase (sps) of the plant. The invention relates further to derivatives of the DNA sequences of the invention that are obtained by exchange of single bases or by deletion or insertion of base sequences and which code for proteins with comparable activity to sucrose-phosphate-synthase. Methods for transforming plant cells and regenerating plants from the cells which exhibit modified sucrose-phosphate-synthase activity are also described.

Abstract: The invention relates to novel .alpha.-fluoroacrylic acid derivatives, to active compound/antidote combinations which comprise .alpha.-fluoroacrylic acid derivatives and are outstandingly suitable for use in crops of useful plants, to their use and to methods for protecting crop plants.

Abstract: A process for the isolation and characterization of a gene enzyme system for the inactivation of the herbicide phenmedipham, wherein the enzyme is a carbamate hydrolase of Arthrobacter oxidans, which is responsible for the cleavage of the carbamate bond between the benzene rings of phenmedipham. This process includes the isolation of the carbamate hydrolase, the identification of the amino acid sequence of two BrCN cleavage peptides of the carbamate hydrolase, the synthesis of oligonucleotides for specific determination of the carbamate hydrolase sequence by hybridization and identification of the coding region, cloning and specifying the nucleotide sequence of the carbamate hydrolase gene from Arthrobacter oxidans.

Abstract: The present invention relates to agents for protecting crop plants from the phytotoxic side effects of herbicides, which agents contain a compound of the formula I ##STR1## wherein Y denotes C--H or N,the symbols R.sub.1 independently of one another denote alkyl, halo-alkyl, alkoxy, haloalkoxy or halogen,R.sub.2 denotes alkyl or cycloalkyl,X denotes COOR.sub.3, CON(R.sub.4).sub.2, COSR.sub.3, CN or ##STR2## R.sub.3 denotes an alkali metal or alkaline earth metal, hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, or phenylalkyl, it being possible for phenyl to be substituted by halogen, or trialkylsilylalkyl or alkoxyalkyl,the symbols R.sub.4 independently of one another denote H, alkyl or cycloalkyl, which can be substituted, or 2 radicals R.sub.4 together with the N atom linking them form a 4- to 7-membered heterocyclic ring andn denotes 1 to 3, in combination with a herbicide.

Abstract: Disclosed and claimed is a process for the preparation of a carbamate (IV)Ar--O--CO--NR--B (IV)by reaction of a saltM.sup..sym. .crclbar.NR--B (II-S)with a diaryl carbonate(ArO).sub.2 CO (III).The carbamate can be reacted, without any necessity of intermediate isolation, with a sulfonamide A--SO.sub.2 NH.sub.2 (V) to give a sulfonylurea (I) or salts thereofA--SO.sub.2 --NH--CO--NR--B (I).And thus, disclosed and claimed too is a process for the preparation of sulfonylurea (I) by (i) contacting a salt (II-S) with a diaryl carbonate (III) to form a carbamate (IV), and (ii) contacting carbamate (IV) from step (i) with or without intermediate isolation, with a sulfonamide (V). These processes avoid the use of alkali metal hydrides as a base. And, these processes can additionally include the preparation of salt (II-S) from a compound H--NR--B (II) and base M.sup..sym. Base.sup..crclbar..

Abstract: Compounds of the formula I ##STR1## in which A is CH and D is N.sup.+ R, A is nitrogen and D is N.sup.+ R or A is N.sup.+ R and D is nitrogen, R is --CR.sup.4 R.sup.5 --E--R.sup.6, Q.sup.n- is an inorganic or organic anion, n is 1, 2, 3 or 4 and R.sup.1 -R.sup.6, E, X, Y and Z are each as defined in the description, processes for their preparation and their use as pesticides.

Abstract: Substituted pyridines and pyrimidines, processes for their preparation and their use as pesticides and fungicides.The invention relates to compounds of the formula ##STR1## in which A is N or CH, R is H, halogen, alkyl or cycloalkyl, R.sup.2 and R.sup.3 are H, halogen or an aliphatic radical or together form a ring, X is O, NH or S(O).sub.q where q=0, 1 of 2, R.sup.4.sub.q is 0-4 radicals selected from the series consisting of halogen, optionally substituted alkyl or alkoxy, cycloalkyl and optionally substituted phenyl, n=0-2, m=1-3 and Y is optionally substituted methylene or imino.The invention furthermore relates to a process for their preparation and for their use as pesticides, in particular as insecticides, acaricides and fungicides. The compounds are furthermore suitable for controlling nematodes, helminths and molluscs, and for controlling endoparasites and ectoparasites in the field of veterinary medicine.

Abstract: Compounds of the formula (I) and their salts as defined in claim 1, ##STR1## in which R.sup.1 is CO--Q--R.sup.8, where R.sup.8 =H or RR.sup.2 and R.sup.3 are H or (C.sub.1 -C.sub.4)alkyl,R.sup.4 is H, R, RO, OH, RCO, RSO.sub.2, PhSO.sub.2R.sup.5 is RSO.sub.2, PhSO.sub.2, PhCO, RNHSO.sub.2, R.sub.2 NSO.sub.2, RCO, CHO, COCOR', CW--T--R.sup.9, CW--NR.sup.10 R.sup.11, CW--N(R.sup.12).sub.2 orR.sup.4 and R.sup.5 together are the chain (CH.sub.2).sub.m B or --B.sup.1 --(CH.sub.2).sub.m1 B-- where B=SO.sub.2, CO; m=3, 4; m.sup.1 =2, 3;T and W=O, S; Q=O, S, NR.sup.13 where R.sup.13 =H, R;R.sup.6 =H, R, RO, RCO, ROCO, Hal, NO.sub.2, CN;R.sup.7 =H, CH.sub.3 ; R.sup.9 =R; R.sup.10, R.sup.11 =H, R; N(R.sup.12).sub.2 =heterocycleA=pyrimidinyl and triazinyl radical or an analog thereof,where R=(substituted) aliphatic hydrocarbon radical, are suitable as selective herbicides. They are prepared by analogous processes via sulfonamides, some of which are new, of the formula (II).

Abstract: Substituted aminomethylphenylsulfonylureas, their preparation, and their use as herbicides and plant growth regulatorsCompounds of the formula (I) and salts thereof ##STR1## where R.sup.1 to R.sup.7 and A are as defined in claim 1 and, inter alia, F.sup.5 is an acyl radical or NR.sup.4 R.sup.5 together are a heterocyclic radical, are useful as herbicides and plant growth regulators. They can be prepared by the methods of known processes, using novel intermediates of the formula (II), (IV), (VI) or (VII) (cf. claim 5).

Abstract: Compounds of the formula (I) and salts thereof ##STR1## in which R.sup.1 to R.sup.9, X, Y n and m are as defined in the claim 1 are suitable as herbicides and plant growth regulators.

Abstract: Acylated aminophenylsulfonylureas, processes for their preparation and their use as herbicides and plant growth regulators. Compounds of the formula (I) and salts thereof ##STR1## in which W.sup.1, W.sup.2, R, n, R.sup.1, R.sup.2, R.sup.4, X, Y and Z are as defined in claim 1 and R.sup.3 is an acyl radical, are suitable as herbicides and plant growth regulators. The herbicides can be prepared by the process variants from claim 5, the novel intermediate products (II), (IV), (VI) and (VIII)* of claims 9 and 10 being employed.

Abstract: Compounds of the formula (I) and salts thereof ##STR1## in which R.sup.1 to R.sup.6, W, X, Y and Z are defined as in claim 1, have herbicidal or plant growth-regulatory properties.They can be prepared by processes analogous to known processes (cf. claim 5), in some cases via novel intermediate products (cf.

Abstract: There are described novel substituted 3-arylamino-6-trifluoromethyluracils of the formula I, processes for their preparation, and methods of controlling monocotyledonous and dicotyledonous harmful plants in agricultural and silvicultural crops. ##STR1## In formula I, the radicals R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are not only hydrogen, alkyl and haloalkyl, but can also have further meanings, R.sup.5 is alkyl or amino, and X is CH or N.