| Autor: |
Jaqueline Raquel, de Almeida, Maria Letícia, Bonatelli, Bruna Durante, Batista, Natalia Sousa, Teixeira-Silva, Mateus, Mondin, Rafaela Cristina, Dos Santos, José Maurício Simões, Bento, Carolina Alessandra, de Almeida Hayashibara, João Lúcio, Azevedo, Maria Carolina, Quecine |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Environmental microbiology reportsReferences. 13(6) |
| ISSN: |
1758-2229 |
| Popis: |
The beneficial features of Bacillus thuringiensis (Bt) are not limited to its role as an insecticide; it is also able to promote plant growth interacting with plants and other plant growth-promoting rhizobacterium (PGPR). The PGPR Bt strain RZ2MS9 is a multi-trait maize growth promoter. We obtained a stable mutant of RZ2MS9 labelled with green fluorescent protein (RZ2MS9-GFP). We demonstrated that the Bt RZ2MS9-GFP successfully colonizes maize's roots and leaves endophytically. We evaluated whether RZ2MS9 has an additive effect on plant growth promotion when co-inoculated with Azospirillum brasilense Ab-V5. The two strains combined enhanced maize's roots and shoots dry weight around 50% and 80%, respectively, when compared to the non-inoculated control. However, non-differences were observed comparing RZ2MS9 alone and when co-inoculated with Ab-V5, In addition, we used co-inoculation experiments in glass chambers to analyse the plant's volatile organic compounds (VOCs) production during the maize-RZ2MS9 and maize-RZ2MS9-Ab-V5 interaction. We found that the single and co-inoculation altered maize's VOCs emission profile, with an increase in the production of indoles in the co-inoculation. Collectively, these results increase our knowledge about the interaction between the Bt and maize, and provide a new possibility of combined application with the commercial inoculant A. brasilense Ab-V5. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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