Data/hora: 05/06/2024 02:22:19

Biblioteca(s): | Embrapa Meio Ambiente.
Data corrente: | 04/01/2023
Data da última atualização: | 14/07/2023
Autoria: | NUNES, P. S. de O.; MEDEIROS, F. H. V.; OLIVEIRA, T. S. de; ZAGO, J. R. de A.; BETTIOL, W.
Afiliação: | PETERSON SYLVIO DE OLIVEIRA NUNES, UNIVERSIDADE FEDERAL DE LAVRAS; FLÁVIO HENRIQUE VASCONCELOS DE MEDEIROS, UNIVERSIDADE FEDERAL DE LAVRAS; TIAGO SEBASTIÃO DE OLIVEIRA, CHR-HANSEN INDÚSTRIA E COMÉRCIO; JAQUELINE R DE ALMEIDA ZAGO, CHR-HANSEN INDÚSTRIA E COMÉRCIO; WAGNER BETTIOL, CNPMA.
Título: | Bacillus subtilis and Bacillus licheniformis promote tomato growth.
Ano de publicação: | 2022
Fonte/Imprenta: | Brazilian Journal of Microbiology, v. 54, n. 1, p. 397-406, 2022.
ISSN: | 1678-4405
DOI: | https://doi.org/10.1007/s42770-022-00874-3
Idioma: | Inglês
Conteúdo: | Abstract: Bacillus spp. are widely marketed and used in agricultural systems as antagonists to various phytopathogens, but it can also benefit the plant as plant growth promoters. Therefore, the longer presence of the bacterium in the rhizosphere would result in a prolonged growth-promoting benefit, but little is yet known about its persistence in the rhizosphere after seed coating. The objectives of this study were to evaluate the tomato growth promotion mediated by Bacillus licheniformis FMCH001 and Bacillus subtilis FMCH002 and the survival rate of these bacteria both in shoots and in the rhizosphere. The Bacillus strains used throughout this study were obtained from Quartzo® produced by Chr. Hansen. The application of a mixture of B. subtilis and B. licheniformis (Quartzo®) at concentrations 1 × 108, 1 × 109, and 1 × 1010 CFU mL-1, as well as the application of B. subtilis and B. licheniformis individually at concentration 1 × 108 CFU mL-1, increased fresh and dry masses of shoot and root system, volume of root system, and length of roots of tomato plants when compared to control. Both Bacillus strains produced IAA after 48 h of in vitro. Bacillus colonies obtained from plant sap were morphologically similar to colonies of B. subtilis and B. licheniformis strains and were detected in inoculated on plants and not detected in control ones. A similar pattern was obtained through DNA-based detection (qPCR). Therefore, B. subtilis and B. licheniformis were able to produce auxin, promote tomato growth, and colonize and persist in the rhizosphere.
Thesagro: | Bacilo; Estimulante de Crescimento Vegetal; Tomate.
Thesaurus Nal: | Bacillus licheniformis; Bacillus subtilis; Growth promotion; Growth regulators; Tomatoes.
Categoria do assunto: | H Saúde e Patologia
Registro original: | Embrapa Meio Ambiente (CNPMA)
Exemplares: | CNPMA - (17319-1) - UPC - AP - DD -  -  -  - DIS