| Texto completo | |
| Autor(es): |
Brondi, Mariana G.
;
Florencio, Camila
;
Vasconcellos, Vanessa M.
;
Ribeiro, Caue
;
Farinas, Cristiane S.
Número total de Autores: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | ACS AGRICULTURAL SCIENCE & TECHNOLOGY; v. 5, n. 6, p. 11-pg., 2025-04-30. |
| Resumo | |
Microbial inoculants offer a promising solution for reducing the environmental impact of agrochemicals while enhancing crop productivity within a bioeconomy framework. However, extending the shelf life and enhancing the stability of these beneficial microorganisms are crucial for making these biological solutions viable alternatives to chemical fertilizers and pesticides. In this study, we developed biobased encapsulation matrices using cellulose nanocrystals (CNC) and a composite of CNC and carboxymethyl cellulose (CNC:CMC) to encapsulate spores of the biocontrol fungus Trichoderma harzianum. Our findings revealed that encapsulation significantly increased the microorganism shelf life. After 1 year, approximately 108 CFU/mL of the initial 109 CFU/mL encapsulated spores remained viable, while nearly all free spores were no longer viable. Encapsulation also improved the microorganism resistance to stressful conditions, such as heat, UV radiation, and chemical fungicide exposure. Specifically, the CNC and CNC:CMC matrices maintained up to 4.7 x 108 CFU/mL after fungicide exposure. Furthermore, encapsulation preserved the antagonistic activity of T. harzianum against the phytopathogen Fusarium solani for up to 1 year. These results demonstrate the potential of cellulose-based matrices for developing microbial inoculant formulations that support the shift toward more sustainable agricultural practices. (AU) | |
| Processo FAPESP: | 19/05159-4 - Desenvolvimento de um bioagente encapsulado com polímeros produzidos a partir de bagaço de cana-de-açúcar para aplicação na agricultura |
| Beneficiário: | Camila Florencio Pereira Lopes |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 16/10636-8 - Da fábrica celular à biorrefinaria integrada Biodiesel-Bioetanol: uma abordagem sistêmica aplicada a problemas complexos em micro e macroescalas |
| Beneficiário: | Roberto de Campos Giordano |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa BIOEN - Temático |
| Processo FAPESP: | 24/09631-8 - Bioinsumos multifuncionais a base de microrganismos e aminoácidos com propriedades de nutrição e bioestimulação de plantas para aplicação na agricultura |
| Beneficiário: | Cristiane Sanchez Farinas |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |