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Published on: December 5, 2020
Harzianic acid, an antifungal and plant growth promoting metabolite from Trichoderma harzianum
Francesco Vinale1, Gavin Flematti, Krishnapillai Sivasithamparam
1School of Earth and Geographical Sciences, The University of Western Australia, 35 Stirling Highway, Crawley, Western Australia, 6009. frvinale@unina.it
Abstract:
A Trichoderma harzianum strain, isolated from composted hardwood bark in Western Australia, was found to produce a metabolite with antifungal and plant growth promoting activity. The structure and absolute configuration of the fungal compound, harzianic acid (1), were determined by X-ray diffraction studies. Harzianic acid showed antibiotic activity against Pythium irregulare, Sclerotinia sclerotiorum, and Rhizoctonia solani. A plant growth promotion effect was observed at low concentrations of 1.
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