PHYSIOLOGICAL AND MORPHOANATOMIC RESPONSES OF Bowdichia virgilioides KUNTH. (FABACEAE) TO GLYPHOSATE

Authors

  • Ana Paula Augusta de Oliveira Faculdade de Caldas Novas, Departamento de Ciências Biológicas , Caldas Novas, GO - Brasil
  • Ailton José Crispim-Filho Universidade Federal de Goiás, Programa de Pós-Graduação em Genética e Melhoramento de Plantas, Goiâna, GO - Brasil
  • Vanessa Ribeirode Souza Santos Universidade Federal do Tocantins, Programa de Pós-Graduação em Ciências Ambientais, Palmas, TO - Brasil
  • Alan Carlos Costa Instituto Federal Goiano, Programa de Pós-Graduação em Ciências Agrárias-Agronomia, Rio Verde, GO - Brasil
  • Kellen Lagares Ferreira Silva Universidade Federal do Tocantins, Programa de Pós-Graduação em Ciências Ambientais, Palmas, TO - Brasil

Keywords:

Herbicide, Phytotoxicity, Cerrado

Abstract

The expansion of agribusiness in Brazil is partly due to the expansion of arable areas in the Cerrado biome, which, consequently, leads to an increase in the use of herbicides, including glyphosate. Therefore, the objective of this study was to evaluate the physiological and morphoanatomic responses of Bowdichia virgilioides Kunth. (Fabaceae), when exposed to the herbicide glyphosate, under controlled greenhouse conditions. In addition, the study proposed to identify possible response patterns of the studied species and provide subsidies for the study of the species in areas affected by the drift of the herbicide. The experimental design was in randomized blocks, with seven doses of the herbicide: 25, 50, 100, 200, 400, 800, and 1200 g i.a ha-1 besides the control (0), with four repetitions each. Gas exchange, chlorophyll a fluorescence emission, chloroplast pigment content, membrane permeability, and visual and anatomical features were analyzed. The results showed that glyphosate is phytotoxic to B. virgilioides because, even at low doses, this herbicide was able to affect all parameters analyzed. There was also confirmation of the presence of phenolic compounds, mainly in the palisade parenchyma. The metabolic alterations presented demonstrated the sensitivity of B. virgilioides to glyphosate. Thus, the observed responses can serve as a tool for diagnosing the effects of glyphosate exposure on this species, present in native areas affected by the drift of this herbicide. Its indiscriminate use poses a risk to Cerrado biodiversity.

Keywords: Herbicide; Phytotoxicity; Cerrado

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Published

2021-08-23

How to Cite

de Oliveira, A. P. A., Crispim-Filho , A. J., Santos, V. R. S., Costa , A. C., & Silva, K. L. F. (2021). PHYSIOLOGICAL AND MORPHOANATOMIC RESPONSES OF Bowdichia virgilioides KUNTH. (FABACEAE) TO GLYPHOSATE. Revista Árvore, 45(1), https://doi.org/10.1590/1806–908820210000028. Retrieved from https://revistaarvore.ufv.br/rarv/article/view/244408

Issue

Revista Árvore, Viçosa-MG, v.45, 2021

Section

Nature Conservation

License

All authors agreed to submit the work to Revista Árvore and granted the exclusive license to publish the article. The authors affirm that it is an original work and has not been previously published elsewhere. The scientific content and opinions expressed in the article are the sole responsibility of the authors and reflect their opinions, not necessarily representing the opinions of the editorial board of Revista Árvore or of the Society of Forest Investigations (SIF).