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Inhibitors of biotin biosynthesis as potential herbicides: part 2. 2005

Tali Ashkenazi, and Ayala Widberg, and Abraham Nudelman, and Vernon Wittenbach, and Dennis Flint
Department of Chemistry, Bar Ilan University, Ramat Gan 52900, Israel.

Isosteres and analogues of 7-keto-8-aminopelargonic acid (KAPA) and 7,8-diaminopelargonic acid (DAPA), the vitamer intermediates involved in the biosynthetic pathway of biotin, possessing chain lengths of eight carbon atoms, were prepared and evaluated as potential herbicides. The most active compounds, 7-amino-octanoic acid hydrochloride and 7-allyloxy-6-oxo-octanoic acid, displayed Arabidopsis GR50 (concentration of the active compound that causes a 50% growth inhibition) values of 5 and 10 mg kg(-1) respectively. The DAPA analog 6,7-diamino-octanoic acid dihydrochloride, when tested in the greenhouse against six weed species, displayed moderate activity against three species, being most active against foxtail millet.

UI MeSH Term Description Entries
D010944 Plants Multicellular, eukaryotic life forms of kingdom Plantae. Plants acquired chloroplasts by direct endosymbiosis of CYANOBACTERIA. They are characterized by a mainly photosynthetic mode of nutrition; essentially unlimited growth at localized regions of cell divisions (MERISTEMS); cellulose within cells providing rigidity; the absence of organs of locomotion; absence of nervous and sensory systems; and an alternation of haploid and diploid generations. It is a non-taxonomical term most often referring to LAND PLANTS. In broad sense it includes RHODOPHYTA and GLAUCOPHYTA along with VIRIDIPLANTAE. Plant
D006540 Herbicides Pesticides used to destroy unwanted vegetation, especially various types of weeds, grasses (POACEAE), and woody plants. Some plants develop HERBICIDE RESISTANCE. Algaecide,Algicide,Herbicide,Algaecides,Algicides
D000596 Amino Acids Organic compounds that generally contain an amino (-NH2) and a carboxyl (-COOH) group. Twenty alpha-amino acids are the subunits which are polymerized to form proteins. Amino Acid,Acid, Amino,Acids, Amino
D000599 Amino Acids, Diamino Amino Acids, Dibasic,Diamino Amino Acids,Dibasic Amino Acids,Acids, Diamino Amino,Acids, Dibasic Amino
D001710 Biotin A water-soluble, enzyme co-factor present in minute amounts in every living cell. It occurs mainly bound to proteins or polypeptides and is abundant in liver, kidney, pancreas, yeast, and milk. Vitamin H,Biodermatin,Biokur,Biotin Gelfert,Biotin Hermes,Biotin-Ratiopharm,Biotine Roche,Deacura,Gabunat,Medebiotin,Medobiotin,Rombellin,Biotin Ratiopharm,Gelfert, Biotin,Hermes, Biotin,Roche, Biotine
D015394 Molecular Structure The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds. Structure, Molecular,Molecular Structures,Structures, Molecular

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