Bioprospection of antifungal activity to phytopathogens in extracts of cerrado native plants.

• Grant number: 07/07284-3
• Support type: Scholarships in Brazil - Scientific Initiation
• Effective date (Start): December 01, 2007
• Effective date (End): November 30, 2008
• Field of knowledge: Agronomical Sciences - Agronomy - Plant Health
• Principal researcher: Marli de Fátima Stradioto Papa
• Grantee: Rafael Fadel
• Home Institution: Faculdade de Engenharia (FEIS). Universidade Estadual Paulista (UNESP). Campus de Ilha Solteira. Ilha Solteira , SP, Brazil

Abstract

Some cerrado plants are known by possessing medicinal properties and others for being toxic to the men and the animals. As they can be beneficial or maleficent to the animals, they can also have effect on the phatogens of plants. In this work 10 cerrado plants had been selected, of which it knows anticipatedly that they possess some medicinal effect and or toxic, described for research or popular indications. Of these plants leves and chemical preparations will be collected watery and hydroalcoholic extracts. The effect of extracts in the micelial growth and the germination of fungal spores Colletotrichum gloeosporioides and Corynespora cassiicola will be evaluated. For the extracts that more than to inhibit 70% of the micelial growth and/or the germination of spores will be determined the concentration accomplishes and the lethal dose, respectively, for inhibitions of 50% of micelial growth and 50% of the germination of spores of the two fungals. With these results one expects to select plants that contain antifungals substances and, later with other studies to get new products for the control of phytopathogens.