Antifungal activity of a novel endochitinase gene (chit36) from Trichoderma harzianum Rifai TM
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چکیده
منابع مشابه
Role of the Trichoderma harzianum endochitinase gene, ech42, in mycoparasitism.
The role of the Trichoderma harzianum endochitinase (Ech42) in mycoparasitism was studied by genetically manipulating the gene that encodes Ech42, ech42. We constructed several transgenic T. harzianum strains carrying multiple copies of ech42 and the corresponding gene disruptants. The level of extracellular endochitinase activity when T. harzianum was grown under inducing conditions increased ...
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An enzyme L-lysine-A-oxidase has been obtained from Trichoderma harzianum Rifai F-180. The analysis of serum from CBA mice immunized five times with native L-lysine-A-oxidase intravenously, at a dose of 35 U/kg, showed that the preparation had virtually no effect on the immune response to Tdependent antigen. L-lysine-A-oxidase at a dose of 35 U/kg administered twice intradermally has no effect ...
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Production of extracellular endochitinase could be increased 5-fold in the mycoparasite fungus Trichoderma harzianum by using the cellulase promoter cbh1 of Trichoderma reesei, whereas the total endochitinase activity increased 10-fold. The cbh1 promoter was not expressed on glucose and sucrose in T. harzianum and was induced by sophorose and on cellulase-inducing medium. The endogenous endochi...
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Agriculture-relevant microorganisms are considered to produce secondary metabolites during processes of competition with other micro- and macro-organisms, symbiosis, parasitism or pathogenesis. Many different strains of the genus Trichoderma, in addition to a direct activity against phytopathogens, are well-known producers of secondary metabolites and compounds that substantially affect the met...
متن کاملOverexpression of chimeric chitinase42 enhanced antifungal activity of Trichoderma harzianum against Fusarium graminearum
Evidence for the role of chitinases in biocontrol by Trichoderma species has been well documented.Chit42 lacks a chitin–binding domain (ChBD) which is involved in its binding activity to insoluble chitin. The objective of the present study was to enhance antifungal activity of T. harzianum by overexpression of wild type and hybrid forms of Chit42 containing chitin binding domain. To produce chi...
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ژورنال
عنوان ژورنال: FEMS Microbiology Letters
سال: 2001
ISSN: 0378-1097
DOI: 10.1016/s0378-1097(01)00217-8