Data/hora: 23/06/2024 17:26:48

Biblioteca(s): | Embrapa Milho e Sorgo.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 2
Data corrente: | 22/01/2022
Data da última atualização: | 24/01/2022
Autoria: | RIBEIRO, V. P.; GOMES, E. A.; SOUSA, S. M. de; LANA, U. G. de P.; COELHO, A. M.; MARRIEL, I. E.; OLIVEIRA-PAIVA, C. A.
Afiliação: | VITÓRIA PALHARES RIBEIRO, Universidade Federal de São João del-Rei; ELIANE APARECIDA GOMES, CNPMS; SYLVIA MORAIS DE SOUSA TINOCO, CNPMS; UBIRACI GOMES DE PAULA LANA, CNPMS; ANTONIO MARCOS COELHO, CNPMS; IVANILDO EVODIO MARRIEL, CNPMS; CHRISTIANE ABREU DE OLIVEIRA PAIVA, CNPMS.
Título: | Co-inoculation with tropical strains of Azospirillum and Bacillus is more efficient than single inoculation for improving plant growth and nutrient uptake in maize.
Ano de publicação: | 2022
Fonte/Imprenta: | Archives of Microbiology, v. 204, article 143, 2022.
DOI: | https://doi.org/10.1007/s00203-022-02759-3
Idioma: | Inglês
Conteúdo: | Usage of Bacillus and Azospirillum as new eco-friendly microbial consortium inoculants is a promising strategy to increase plant growth and crop yield by improving nutrient availability in agricultural sustainable systems. In this study, we designed a multispecies inoculum containing B. thuringiensis (strain B116), B. subtillis (strain B2084) and Azospirillum sp. (strains A1626 and A2142) to investigate their individual or co-inoculated ability to solubilize and mineralize phosphate, produce indole acetic acid (IAA) and their efect on maize growth promotion in hydroponics and in a non-sterile soil. All strains showed signifcant IAA production, P mineralization (sodium phytate) and Ca?P, Fe?P (tricalcium phosphate and iron phosphate, respectively) solubilization. In hydroponics, co-inoculation with A1626 x A2142, B2084 x A2142, B2084 x A1626 resulted in higher root total length, total surface area, and surface area of roots with diameter between 0 and 1 mm than other treatments with single inoculant, except B2084. In a greenhouse experiment, maize inoculated with the two Azospirillum strains exhibited enhanced shoot dry weight, shoot P and K content, root dry weight, root N and K content and acid and alkaline phosphatase activities than the other treatments. There was a signifcant correlation between soil P and P shoot, alkaline phosphatase and P shoot and between acid phosphatase and root dry weight. It may be concluded that coinoculations are most efective than single inoculants strains, mainly between two selected Azospirillum strains. Thus, they could have synergistic interactions during maize growth, and be useful in the formulation of new inoculants to improve the tropical cropping systems sustainability.
Palavras-Chave: | Combined microbial inoculants; Dual inoculation; PGPB; Plant growth-promoting bacteria.
Thesagro: | Bactéria; Inoculação; Inoculante; Milho; Zea Mays.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
Registro original: | Embrapa Milho e Sorgo (CNPMS)
Exemplares: | CNPMS - (29750-1) - UPC - AP - DD -  -  -  - DIS