Secondary Metabolites Produced by Macrophomina phaseolina Isolated from Eucalyptus globulus

Maria Michela Salvatore, Carina Félix, Fernanda Lima, Vanessa Ferreira, Daniele Naviglio, Francesco Salvatore, Ana Sofia Duarte, Artur Alves, Anna Andolfi and Ana Cristina Esteves
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Maria Michela Salvatore: Department of Chemical Sciences, University of Naples ‘Federico II’, 80126 Naples, Italy
Carina Félix: Department of Biology, CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
Fernanda Lima: Department of Biology, CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
Vanessa Ferreira: Department of Biology, CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
Daniele Naviglio: Department of Chemical Sciences, University of Naples ‘Federico II’, 80126 Naples, Italy
Francesco Salvatore: Department of Chemical Sciences, University of Naples ‘Federico II’, 80126 Naples, Italy
Ana Sofia Duarte: Faculty of Dental Medicine, Center for Interdisciplinary Research in Health (CIIS), Universidade Católica Portuguesa, 3504-505 Viseu, Portugal
Artur Alves: Department of Biology, CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
Anna Andolfi: Department of Chemical Sciences, University of Naples ‘Federico II’, 80126 Naples, Italy
Ana Cristina Esteves: Faculty of Dental Medicine, Center for Interdisciplinary Research in Health (CIIS), Universidade Católica Portuguesa, 3504-505 Viseu, Portugal

Agriculture, 2020, vol. 10, issue 3, 1-11

Abstract: In the course of investigations on the role of secondary metabolites in plant-microbe interactions, the production of secondary metabolites by Macrophomina phaseolina isolates from Eucalyptus globulus , was studied. This fungus is responsible for several plant diseases which affect crop productivity and industry. Although secondary metabolites may play a role in disease development, there are very few reports on M. phaseolina metabolomics and, as far as we know, isolates from eucalypts have not been investigated for secondary metabolites production. In the present paper, metabolites typical of fungi, from the family Botryosphaeriaceae, were identified for the first time as products of M. phaseolina . Furthermore, the isolate under examination was grown in the presence and absence of host stem tissue, and metabolite profiles were compared. Five products are reported for the first time in this species and azelaic acid was exclusively produced in the presence of eucalypt stem. Finally, phytotoxicity and cytotoxicity tests of culture filtrates and crude organic extracts were also performed. Key Contribution: Lipophilic metabolites produced by M. phaseolina might play a role in the plant-fungus interactions responsible for serious diseases of E. globulus.

Keywords: plant-microbe interaction; secondary metabolites; Eucalyptus globulus; Macrophomina phaseolina; plant diseases; (3 R ,4 S )-botryodiplodin (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2020
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