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Phytotoxicity and phytochemical analysis of leaves from different species of Cerrado

Grant number: 13/14413-5
Support type:Scholarships in Brazil - Master
Effective date (Start): November 01, 2013
Effective date (End): March 31, 2015
Field of knowledge:Biological Sciences - Botany
Principal Investigator:Rosana Marta Kolb
Grantee:Graciele Fernanda de Souza Pinto
Home Institution: Faculdade de Ciências e Letras (FCL-ASSIS). Universidade Estadual Paulista (UNESP). Campus de Assis. Assis , SP, Brazil


The allelopathy is usually defined as any process involving the production of secondary metabolites by plants and / or microorganisms that influence the development of biological systems. There is a great variety of compounds with this type of activity, their production being altered by environmental factors. This project aims to evaluate the phytotoxicity of aqueous extract of leaves of five species of the Cerrado (Qualea cordata, Luehea candicans, Gochnatia polymorpha, Miconia chamissois and Byrsonima intermedia), collected in different seasons (dry and rainy seasons), on germination and initial development of a monocot, Zea mays L. (corn), and a eudicot, Cucumis sativus L. (cucumber). Phytochemical analysis will also be conducted to determine the main chemical classes of secondary metabolites in plants in both seasons.

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DE SOUZA PINTO, GRACIELE FERNANDA; KOLB, ROSANA MARTA. Seasonality affects phytotoxic potential of five native species of Neotropical savanna. BOTANY, v. 94, n. 2, p. 81-89, FEB 2016. Web of Science Citations: 2.

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