Nanozinc and plant growth-promoting bacteria improve biochemical and metabolic attributes of maize in tropical Cerrado

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.creatorJalal, Arshad-
Autor(es): dc.creatorOliveira, Carlos Eduardo da Silva-
Autor(es): dc.creatorBastos, Andréa de Castro-
Autor(es): dc.creatorFernandes, Guilherme Carlos-
Autor(es): dc.creatorde Lima, Bruno Horschut-
Autor(es): dc.creatorFurlani Junior, Enes-
Autor(es): dc.creatorde Carvalho, Pedro Henrique Gomes-
Autor(es): dc.creatorGalindo, Fernando Shintate-
Autor(es): dc.creatorGato, Isabela Martins Bueno-
Autor(es): dc.creatorTeixeira Filho, Marcelo Carvalho Minhoto-
Data de aceite: dc.date.accessioned2025-08-21T21:13:42Z-
Data de disponibilização: dc.date.available2025-08-21T21:13:42Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-01-11-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3389/fpls.2022.1046642-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/249589-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/249589-
Descrição: dc.descriptionIntroduction: Plant growth-promoting bacteria (PGPBs) could be developed as a sustainable strategy to promote plant growth and yield to feed the ever-growing global population with nutritious food. Foliar application of nano-zinc oxide (ZnO) is an environmentally safe strategy that alleviates zinc (Zn) malnutrition by improving biochemical attributes and storage proteins of grain. Methods: In this context, the current study aimed to investigate the combined effect of seed inoculation with PGPBs and foliar nano-ZnO application on the growth, biochemical attributes, nutrient metabolism, and yield of maize in the tropical savannah of Brazil. The treatments consisted of four PGPB inoculations [i.e., without inoculation, Azospirillum brasilense (A. brasilense), Bacillus subtilis (B. subtilis), Pseudomonas fluorescens (P. fluorescens), which was applied on the seeds] and two doses of Zn (i.e., 0 and 3 kg ha−1, applied from nano-ZnO in two splits on the leaf). Results: Inoculation of B. subtilis with foliar ZnO application increased shoot dry matter (7.3 and 9.8%) and grain yield (17.1 and 16.7%) in 2019-20 and 2020-2021 crop seasons respectively. Inoculation with A. brasilense increased 100-grains weight by 9.5% in both crop seasons. Shoot Zn accumulation was improved by 30 and 51% with inoculation of P. fluorescens in 2019-20 and 2020-2021 crop seasons. Whereas grain Zn accumulation was improved by 49 and 50.7% with inoculation of B. subtilis and P. fluorescens respectively. In addition, biochemical attributes (chlorophyll a, b and total, carotenoids, total soluble sugar and amino acids) were improved with inoculation of B. subtilis along with foliar nano ZnO application as compared to other treatments. Co-application of P. fluorescens with foliar ZnO improved concentration of grains albumin (20 and 13%) and globulin (39 and 30%). Also, co-application of B. subtilis and foliar ZnO improved concentration of grains glutelin (8.8 and 8.7%) and prolamin (15 and 21%) in first and second seasons. Discussion: Therefore, inoculation of B. subtilis and P. fluorescens with foliar nano-ZnO application is considered a sustainable and environmentally safe strategy for improving the biochemical, metabolic, nutritional, and productivity attributes of maize in tropical Savannah regions.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionDepartment of Plant Protection Rural Engineering and Soils (DEFERS) São Paulo State University (UNESP)-
Descrição: dc.descriptionDepartment of Plant Science Food Technology and Socio-Economics São Paulo State University (UNESP)-
Descrição: dc.descriptionCenter for Nuclear Energy in Agriculture (CENA) University of São Paulo (USP)-
Descrição: dc.descriptionDepartment of Plant Protection Rural Engineering and Soils (DEFERS) São Paulo State University (UNESP)-
Descrição: dc.descriptionDepartment of Plant Science Food Technology and Socio-Economics São Paulo State University (UNESP)-
Descrição: dc.descriptionCNPq: 166331/2018-0-
Descrição: dc.descriptionCNPq: 311308/2020-1-
Idioma: dc.languageen-
Relação: dc.relationFrontiers in Plant Science-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectamino acids-
Palavras-chave: dc.subjectgrain yield-
Palavras-chave: dc.subjectnutrient uptake-
Palavras-chave: dc.subjectPGPB (plant growth-promoting bacteria)-
Palavras-chave: dc.subjectphotosynthesis-
Palavras-chave: dc.subjectplant growth-
Palavras-chave: dc.subjectstorage proteins-
Palavras-chave: dc.subjectzinc fertilization-
Título: dc.titleNanozinc and plant growth-promoting bacteria improve biochemical and metabolic attributes of maize in tropical Cerrado-
Tipo de arquivo: dc.typelivro digital-
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