| Literature DB >> 17534583 |
Fausto Bruno dos Reis Almeida1, Fernanda Menezes Cerqueira, Roberto do Nascimento Silva, Cirano José Ulhoa, Adilson Lopes Lima.
Abstract
The genus Trichoderma is a potential biocontrol agent against several phytopathogenic fungi. One parameter for its successful use is an efficient coiling process followed by a substantial production of hydrolytic enzymes. The interaction between fifteen isolates of Trichoderma harzianum and the soil-borne plant pathogen, Rhizoctonia solani, was studied by light microscopy and transmission electron microscopy (TEM). Macroscopic observations of fungal growth in dual cultures revealed that growth inhibition of the pathogen occurred soon after contact with the antagonist. All T. harzianum isolates tested exhibited coiling around the hyphae of R. solani. The strains ALL23, ALL40, ALL41, ALL43 and ALL49 did not differ in coiling frequency and gave equal coiling performances. No correlation between coiling frequency and the production of cell wall-degrading chitinases, N-acetyl-beta-D-glucosaminidase and beta-1,3-glucanases, was found.Entities:
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Year: 2007 PMID： 17534583 DOI： 10.1007/s10529-007-9372-z
Source DB: PubMed Journal: Biotechnol Lett ISSN： 0141-5492 Impact factor: 2.461