Aumento de secreción de enzimas de biocontrol en cepas mutantes de Trichoderma harzianum en presencia de paredes de Rhizoctonia solani

Translated title of the contribution: Enhanced secretion of biocontrol enzymes by trichoderma harzianum mutant strains in the presence of rhizoctonia solani cell walls

Rubén Polanco, Constanza Pino, Ximena Besoain, Jaime Montealegre, Luz M. Pé Rez

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Abstract

The secretion of enzymes involved in biocontrol from the wild T. harzianum strains Th11 and Th12 and the mutants Th11A80.1, Th11C40.1 and Th12A10.1 was studied after their cultivation in the presence of R. solani cell walls as the sole carbon source. The results showed that endoprotease activity in the supernatants from Th11A80.1 and Th11C40.1 increased 2.77 and 4.79-fold, respectively, and the β‑1,3‑glucanase and β-1,4-chitinase activity from Th12A10.1 increased 1.86 and 1.54-fold, respectively, compared with the corresponding parental strains. The role of the three enzymes in the biocontrol of R. solani is discussed.

Original languageSpanish
Pages (from-to)243-250
Number of pages8
JournalCiencia e Investigacion Agraria
Volume42
Issue number2
DOIs
Publication statusPublished - 1 Aug 2015

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ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)

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