1
|
Oliveira JC, Sales JF, Rubio-Neto A, Silva CF, Soares MA, Silva FG. Biological control in the germination of seeds from two species native of the Cerrado region. BRAZ J BIOL 2020; 81:105-113. [PMID: 32159616 DOI: 10.1590/1519-6984.222279] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 09/20/2019] [Indexed: 11/22/2022] Open
Abstract
Microorganisms have been efficiently used for the biological control of phytopathogens through the production of antimicrobial substances. However, the objectives of this work were: to study the germination of Butia purpurascens Glassman and Butia archeri Glassman seeds in different substrates, to select and identify the endophytic and rhizospheric bacterial isolates of B. purpurascens and B. archeri, and to perform antibiosis tests based on the isolated microorganisms of these tree species. No difference was found between the cultivation substrates for the percentages of germination, hard seeds, and fungal contamination in the B. purpurascens seeds. The Bacillus subtilis isolated showed the best capacity for suppressing the growth of the two deteriorative fungi tested in B. purpurascens seeds. No difference was found for inhibition of the growth of Aspergillus niger fungus (deteriorative fungus of B. archeri seeds) between the microorganisms with Bacillus sp. and Brevibacillus brevis compared to the control. In the microbiolization of B. purpurascens and B. archeri seeds performed with microbiological solutions produced from the endophytic and rhizospheric strains of Bacillus sp., no differences were observed in the percentages of germination and contamination by fungi. For B. archeri seeds, there was contamination by fungi and bacteria after one day of cultivation, primarily in the regions with lesions caused by the extraction and scarification process.
Collapse
Affiliation(s)
- J C Oliveira
- Laboratório de Sementes, Instituto Federal Goiano - IF Goiano, Campus Rio Verde, Av. Sul Goiana, Km 01, Zona Rural, CEP 75900-000, Rio Verde, GO, Brasil
| | - J F Sales
- Laboratório de Sementes, Instituto Federal Goiano - IF Goiano, Campus Rio Verde, Av. Sul Goiana, Km 01, Zona Rural, CEP 75900-000, Rio Verde, GO, Brasil
| | - A Rubio-Neto
- Laboratório de Cultura de Tecidos Vegetal, Instituto Federal Goiano - IF Goiano, Campus Rio Verde, Av. Sul Goiana, Km 01, Zona Rural, CEP 75900-000, Rio Verde, GO, Brasil
| | - C F Silva
- Laboratório de Microbiologia Agrícola, Instituto Federal Goiano - IF Goiano, Campus Rio Verde, Av. Sul Goiana, Km 01, Zona Rural, CEP 75900-000, Rio Verde, GO, Brasil
| | - M A Soares
- Instituto de Biociências, Universidade Federal de Mato Grosso - UFMT, Av. Fernando Corrêa da Costa, 2367, Boa Esperança, CEP 78060-900, Cuiabá, MT, Brasil
| | - F G Silva
- Laboratório de Cultura de Tecidos Vegetal, Instituto Federal Goiano - IF Goiano, Campus Rio Verde, Av. Sul Goiana, Km 01, Zona Rural, CEP 75900-000, Rio Verde, GO, Brasil
| |
Collapse
|