title: [Natural pollution of continental waters by the antioxygenic effect of phytomelanin genesis in aqueous extract of autumn leaves, especially poplars].
abstract: Phenolase-acid phenol systems are present in variable amounts, variable proportion and variable water solubility in the autumn leaves of trees and bushes. The oxidative polycondensations into phytomelanins caused by these systems confer antioxygen properties to aqueous macerations of senescent leaves, which are sometimes very intense. They induce therefore a biochemical natural pollution of continental waters. The Poplars proved to be particularly deleterious.
mesh_terms: D008543:Melanins / Q000032:analysis / Q000096:biosynthesis*; D010084:Oxidation-Reduction; D010944:Plants / Q000378:metabolism*; D012621:Seasons; D013045:Species Specificity; D014873:Water Pollutants / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D008543:Melanins; D014873:Water Pollutants; D014874:Water Pollutants, Chemical
vernacular_title: Pollution naturelle des eaux continentales par l'effet antioxygène de la genèse des phytomélanines dans les extraits aqueux de feuilles d'automne, notamment de peupliers.