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http://hdl.handle.net/1843/59330| Tipo: | Artigo de Periódico |
| Título: | Synthesis and phytotoxic profile of a new tetraoxane designed from a commercial auxin |
| Autor(es): | Isabel V. Antolínez Luiz Cláudio de Almeida Barbosa Célia Maltha Gustavo Pereira Antônio Silva |
| Resumo: | Modern agriculture relies on the massive use of agrochemicals, including herbicides. Despite their effectiveness, a continuous use of herbicides sharing the same target has resulted in the selection of weed biotypes resistant to such chemicals. To cope with this problem, the development of new herbicides is an urgent requirement. In this work we applied the Active compound Derivatization Method (ADM) strategy to develop a new tetraoxane (5), derived from the synthetic auxin 2-(naphtalen-1-yl)acetic acid (NAA). Greenhouse bioassays showed that 5 caused chlorosis, necrosis and leaf epinasty in Cucumis sativa. Furthermore, this compound, at the concentration of 1.25 x 10-5 mol L-1, inhibited the growth of important weeds such as Bidens pilosa, Iponomea acuminate, Solanum americanum and Althernantera ficoidea. For some weeds, the compound effect was higher or comparable to those caused by commercial glyphosate and imazethapyr. In addition, degradation studies revealed that 5 is transformed into NAA. The results also showed that 5 could act as photosynthesis inhibitor and as an auxin herbicide. In summary, we have discovered a new compound that may be a useful lead for the development of a commercial herbicide. |
| Assunto: | Herbicidas Peróxidos |
| Idioma: | eng |
| País: | Brasil |
| Editor: | Universidade Federal de Minas Gerais |
| Sigla da Instituição: | UFMG |
| Departamento: | ICX - DEPARTAMENTO DE QUÍMICA |
| Tipo de Acesso: | Acesso Aberto |
| Identificador DOI: | https://doi.org/10.21577/0100-4042.20170549 |
| URI: | http://hdl.handle.net/1843/59330 |
| Data do documento: | 2020 |
| metadata.dc.url.externa: | https://www.scielo.br/j/qn/a/t6YsGpc78HSvSXM58bR664L/ |
| metadata.dc.relation.ispartof: | Química Nova |
| Aparece nas coleções: | Artigo de Periódico |
Arquivos associados a este item:
| Arquivo | Descrição | Tamanho | Formato | |
|---|---|---|---|---|
| SYNTHESIS AND PHYTOTOXIC PROFILE OF A NEW TETRAOXANE DESIGNED FROM A COMMERCIAL AUXIN.pdf | 2.81 MB | Adobe PDF | Visualizar/Abrir |
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