A strain of Fusarium oxysporum was isolated from grapevine showing heavy decline disease in a vineyard of Veneto region in Italy. The fungus showed to produce phytotoxic metabolites when grown in liquid culture. The main metabolite was identified as fusaric acid produced for the first time as a phytotoxin by a strain of F. oxysporom isolated from diseased grapevine plants. Its quantification in the fungus cultures filtrates was accomplished by HPLC. When tested on tobacco by leaf-puncture assay fusaric acid at 0.5 mg/mL induced the formation of extensive necrosis.
The main phytotoxic metabolite produced by a strain of Fusarium oxysporum inducing grapevine plant declining in Italy / Reveglia, Pierluigi; Cinelli, Tamara; Cimmino, Alessio; Masi, Marco; Evidente, Antonio. - In: NATURAL PRODUCT RESEARCH. - ISSN 1478-6419. - 32:20(2018), pp. 2398-2407. [10.1080/14786419.2017.1415897]
The main phytotoxic metabolite produced by a strain of Fusarium oxysporum inducing grapevine plant declining in Italy
Reveglia, PierluigiFormal Analysis
;Cimmino, AlessioConceptualization
;Masi, MarcoWriting – Original Draft Preparation
;Evidente, Antonio
Writing – Review & Editing
2018
Abstract
A strain of Fusarium oxysporum was isolated from grapevine showing heavy decline disease in a vineyard of Veneto region in Italy. The fungus showed to produce phytotoxic metabolites when grown in liquid culture. The main metabolite was identified as fusaric acid produced for the first time as a phytotoxin by a strain of F. oxysporom isolated from diseased grapevine plants. Its quantification in the fungus cultures filtrates was accomplished by HPLC. When tested on tobacco by leaf-puncture assay fusaric acid at 0.5 mg/mL induced the formation of extensive necrosis.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
