Abstract: The invention relates to methods for prevention and/or treatment of skin lesions caused by exposure to ultraviolet radiation. Exemplary condition that can be prevented or treated are actinic keratosis, dry skin,polymorphic light exanthema, photopathology, photo-allergy, solar atrophy, stria migrans, elastoma diffusum, X-ray dermatits, gouty polychondritis and decubitis ulcer.

Abstract: The invention refers to pharmaceutical compositions suitable for the protection of the mitochondrial genom and/or mitochondrium from damages or for the treatment of diseases connected with such damages, said compositions comprising a hydroximic acid derivative of the formula: wherein R1 represents a hydrogen or a C1-5 alkyl group, R2 stands for a hydrogen, a C1-5 alkyl group, a C3-8 cycloalkyl group or a phenyl group optionally substituted by a hydroxy or a phenyl group, or R1 or R2 together with the nitrogen atom they are attached to form a 5 to 8 membered ring optionally containing one or more further nitrogen, oxygen or sulfur atom(s) and said ring can be condensed with another alicyclic or heterocyclic ring, preferably a benzene, naphthalene, quinoline, isoquinoline, pyridine or pyrazoline ring, furthermore, if desired and chemically possible, the nitrogen and/or sulfur heteroatom(s) are present in the form of an oxide or dioxide, R3 means a hydrogen, a phenyl group, a naphthyl group

Abstract: Disclosed is a process for improving the efficiency of in vitro propagation and tissue cultivating by tissue culture of cultivated of plants which comprises treating the plants during micropropagation and/or subsequent planting with an aqueous solution of one or a mixture of substituted amides or one or a mixture of substituted diamides.

Abstract: The invention relates to a plant growth regulating composition which contains as active agent a compound of general formula (I) ##STR1## wherein R.sub.1 and R.sub.2 can be identical or different and can stand for hydrogen, a C.sub.1-4 straight or branched alkyl group, cyclohexyl, phenyl, chlorophenyl, alkylphenyl, benzyl or alkylbenzyl group, or R.sub.1 and R.sub.2 can together with the N atoms form a heterocyclic ring.The growing of plants can be stimulated and the green weight can be increased to a significant degree by the treatment carried out with the composition of the invention.

Abstract: The invention relates to new compositions for increasing the cold resistance of cultivated plants. These compositions contain as active ingredient at least one compound of the general formula (I), ##STR1## wherein n is an integer of 2 to 5 and R.sub.1, R.sub.2 and R.sub.3 each stand for hydrogen or C.sub.1-5 alkyl, or an acid addition salt thereof in an amount of 0.01 to 70% by weight, together with a conventional diluent and/or additive.The plants treated with the compositions according to the invention are more resistant to cold and frost.