Physiological and anatomical responses of Eugenia dysenterica to glyphosate

Abstract Brazil is among the countries that most use pesticides in world. These chemicals cause undesirable changes ecosystems, particularly contamination of non-target native forest species through drift. The nuisances caused by go beyond environmental damage and include public health problems. objective this work was to evaluate effects glyphosate on leaf gas exchange, photosynthetic pigments morphoanatomy seedlings Eugenia dysenterica. visual toxicity, physiological morphoanatomical characteristics E. dysenterica, when exposed concentrations 0, 550, 1110 2220 g a.e. ha-1 glyphosate, were analyzed. results indicate herbicide toxicity leaves all treatments. Reductions photosynthesis (A), stomatal conductance (gs), transpiration (E) at 47 DAA, also identified. Glyphosate anatomical structures dysenterica leaves. From data analyzed it possible affirm plants are sensitive action glyphosate. Visible symptoms such as chlorosis necrosis edge indicators can be used rural communities a warning risk contamination.