Abstract: Mycorrhizal and rhizobial associations represent the two most important symbiotic relationships between higher plants and microorganisms, providing access to otherwise limiting supplies of phosphate and nitrogen, respectively. Although many higher plants are able to establish a symbiotic relationship with arbuscular mycorrhizal fungi, legumes are unusual among plants because they also form associations with nitrogen fixing soil bacteria called rhizobia. This symbiosis requires the production of bacterial signals, “Nod factors” that trigger several key developmental responses in the host plant (Dénarié et al., 1996). The DMI1 gene of the model legume M. truncatula plays a major role both in the early steps of Nod factor signaling and in the establishment of mycorrhizal symbiosis. Dmi1 mutants do not exhibit many of the early responses to Nod factors and are incapable of forming nitrogen fixing root nodules. Here we describe the cloning and preliminary characterization of DMI1.

Abstract: The present invention relates to product(s) containing living microorganism(s) suitable for soil treatment, microorganisms multiplying under different climatic and natural circumstances, as well as procedures for the production of the products, and procedures for the treatment of the soil and plants with the products. More particularly, the invention relates to a procedure for preparing the products from any of the microorganisms specified below, or from the mixture thereof. Furthermore, the invention relates to a procedure for the creation of the cultures of the microorganisms to be used. The subject invention also pertains to the microorganisms themselves. More particularly, the invention relates to a procedure for the treatment of the soil and the plants with a product containing at least one of the microorganisms selected from Azospirillum brasilense ssp. SW51 (NCAIM /P/ B 001293), Azotobacter vinelandii ssp. M657 (NCAIM /P/B 001292), Pseudomonas fluorescens var.

Abstract: The invention relates to a seed dressing composition containing 20 to 90% of 3-isononyloxypropyl-ammonium methyl phosphonate as active ingredient, optionally 2 to 10% by weight of a metal ion, preferably magnesium or zinc ion as well as a solid carrier and optionally other additives, preferably a surface active agent and/or adhesion promoting agent, in amounts adding up to 100% by weight, and to a method of protecting seeds against fungus attack by the application thereto of said composition.

Abstract: The present invention relates to new compounds of the general formula (I) ##STR1## wherein R stands for hydrogen, C.sub.1-8 straight or branched chained alkyl, C.sub.1-4 haloalkyl, C.sub.1-4 alkoxy-C.sub.1-2 alkyl,R.sup.1 stands for 2,3-dihydro-2,2-dimethyl-benzofuran-7-yl, 4-methyl-coumarin-7-yl, 2,2,4-trimethyl-(2H)-chromen-5-yl or 2,2,4-trimethyl-(2H)-chromen-7-yl and Me stands for a monovalent cation and represents the salt of the acid.The new compounds show plant growth regulating activity and can be used as active ingredient of plant growth regulators.

Abstract: The invention relates to plant growth regulators, that is, to compositions influencing the growth of plants. The compositions of the invention contain as active agent a 3,6-diamino-acridine N-glycoside of the formula (I) ##STR1## and/or its acid addition salt of the formula (II) ##STR2## in which formulae at least one of R.sub.1 and R.sub.2 stands for an .alpha.- and/or .beta.-(D)- and/or .alpha.- and/or .beta.-(L)-glucosyl, -galactosyl, -mannosyl, -xylosyl, -arabinosyl, -ribosyl, -6-desoxyglucosyl, -6-desoxygalactosyl, -ramnosyl, -maltosyl, -2-acetamido-2-desoxyglucosyl, -lactosyl, -cellobiosyl, -genciobiosyl or -laminaribiosyl group and the other one represents either a hydrogen atom or one of the enumerated sugar groups;A is a residue of an acid; andp stands for 1, 2 or 3.

Abstract: An accumulating conveyor comprising a frame on which a plurality of horizontally spaced apart power rollers are positioned for propelling articles along the conveyor. Each power roller includes a tubular metal roller member terminating at opposite ends and having an axial passageway extending between and through its opposite ends. A motor driven drive shaft which is mounted on the frame extends through the roller member's passageway and supports a friction drive member formed of powdered metal and impregnated with a lubricant. The friction drive member is positioned in the passageway in frictional engagement with the roller member and rotates conjointly with the drive shaft. Rotation of the drive shaft is transmitted by the friction drive member to propel the articles along the conveyor. When the movement of the article is restrained, the friction drive member slips in the passageway relative to the roller member so that the roller member remains motionless.