title: [Determination of the chitinolytic activity of "Abies alba" Mill. litter microorganisms: bacteria and yeasts (author's transl)].
abstract: Chitin decomposition by some microorganisms isolated from Abies alba Mill. litter has been observed. The active strains were representatives of the genera Bacillus, Pseudomonas and Streptomyces. The isolated yeasts were unable to decompose chitin. The chitinolytic microorganisms secreted in medium an extracellular chitinase system which determined chitin hydrolysis. Cell-free culture filtrate of the microorganisms produced colloidal chitin hydrolysis. An estimation method of chitin hydrolysis was determined measuring chitin loss in standard conditions. Experimental results indicate that Pseudomonas isolate is the most active. The active strains represent about 15% of the microorganisms, bacteria and yeasts, isolated from this litter.
mesh_terms: D001407:Bacillus / Q000378:metabolism*; D002686:Chitin / Q000378:metabolism*; D005658:Fungi / Q000378:metabolism*; D006868:Hydrolysis; D010944:Plants / Q000382:microbiology*; D011549:Pseudomonas / Q000378:metabolism*; D013045:Species Specificity; D013302:Streptomyces / Q000378:metabolism*; D014197:Trees
chemical_list: D002686:Chitin
vernacular_title: Détermination de l'activité chitinolytique de microorganismes, bactéries et levures, de la litière du sapin Abies alba Mill.