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Integrated use of plant growth-promoting bacteria and nano-zinc foliar spray is a sustainable approach for wheat biofortification, yield, and zinc use efficiency

INTRODUCTION AND AIMS: The intensive cropping system and imbalance use of chemical fertilizers to pursue high grain production and feed the fast-growing global population has disturbed agricultural sustainability and nutritional security. Understanding micronutrient fertilizer management especially...

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Autores principales: Jalal, Arshad, Oliveira, Carlos Eduardo da Silva, Fernandes, Guilherme Carlos, da Silva, Edson Cabral, da Costa, Kaway Nunes, de Souza, Jeferson Silva, Leite, Gabriel da Silva, Biagini, Antonio Leonardo Campos, Galindo, Fernando Shintate, Teixeira Filho, Marcelo Carvalho Minhoto
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10200892/
https://www.ncbi.nlm.nih.gov/pubmed/37223804
http://dx.doi.org/10.3389/fpls.2023.1146808
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author Jalal, Arshad
Oliveira, Carlos Eduardo da Silva
Fernandes, Guilherme Carlos
da Silva, Edson Cabral
da Costa, Kaway Nunes
de Souza, Jeferson Silva
Leite, Gabriel da Silva
Biagini, Antonio Leonardo Campos
Galindo, Fernando Shintate
Teixeira Filho, Marcelo Carvalho Minhoto
author_facet Jalal, Arshad
Oliveira, Carlos Eduardo da Silva
Fernandes, Guilherme Carlos
da Silva, Edson Cabral
da Costa, Kaway Nunes
de Souza, Jeferson Silva
Leite, Gabriel da Silva
Biagini, Antonio Leonardo Campos
Galindo, Fernando Shintate
Teixeira Filho, Marcelo Carvalho Minhoto
author_sort Jalal, Arshad
collection PubMed
description INTRODUCTION AND AIMS: The intensive cropping system and imbalance use of chemical fertilizers to pursue high grain production and feed the fast-growing global population has disturbed agricultural sustainability and nutritional security. Understanding micronutrient fertilizer management especially zinc (Zn) through foliar application is a crucial agronomic approach that could improve agronomic biofortification of staple grain crops. The use of plant growth-promoting bacteria (PGPBs) is considered as one of the sustainable and safe strategies that could improve nutrient acquisition and uptake in edible tissues of wheat to combat Zn malnutrition and hidden hunger in humans. Therefore, the objective of this study was to evaluate the best-performing PGPB inoculants in combination with nano-Zn foliar application on the growth, grain yield, and concentration of Zn in shoots and grains, Zn use efficiencies, and estimated Zn intake under wheat cultivation in the tropical savannah of Brazil. METHODS: The treatments consisted of four PGPB inoculations (without inoculation, Azospirillum brasilense, Bacillus subtilis, and Pseudomonas fluorescens, applied by seeds) and five Zn doses (0, 0.75, 1.5, 3, and 6 kg ha(−1), applied from nano ZnO in two splits by leaf). RESULTS: Inoculation of B. subtilis and P. fluorescens in combination with 1.5 kg ha(−1) foliar nano-Zn fertilization increased the concentration of Zn, nitrogen, and phosphorus in the shoot and grain of wheat in the 2019 and 2020 cropping seasons. Shoot dry matter was increased by 5.3% and 5.4% with the inoculation of P. fluorescens, which was statistically not different from the treatments with inoculation of B. subtilis as compared to control. The grain yield of wheat was increased with increasing nano-Zn foliar application up to 5 kg Zn ha(−1) with the inoculation of A. brasilense in 2019, and foliar nano-Zn up to a dose of 1.5 kg ha(−1) along with the inoculation of P. fluorescens in the 2020 cropping season. The zinc partitioning index was increased with increasing nano Zn application up to 3 kg ha(−1) along with the inoculation of P. fluorescens. Zinc use efficiency and applied Zn recovery were improved at low doses of nano-Zn application in combination with the inoculation of A. brasilense, B. subtilis, and P. fluorescens, respectively, as compared to control. DISCUSSION: Therefore, inoculation with B. subtilis and P. fluorescens along with foliar nano-Zn application is considered a sustainable and environmentally safe strategy to increase nutrition, growth, productivity, and Zn biofortification of wheat in tropical savannah.
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spelling pubmed-102008922023-05-23 Integrated use of plant growth-promoting bacteria and nano-zinc foliar spray is a sustainable approach for wheat biofortification, yield, and zinc use efficiency Jalal, Arshad Oliveira, Carlos Eduardo da Silva Fernandes, Guilherme Carlos da Silva, Edson Cabral da Costa, Kaway Nunes de Souza, Jeferson Silva Leite, Gabriel da Silva Biagini, Antonio Leonardo Campos Galindo, Fernando Shintate Teixeira Filho, Marcelo Carvalho Minhoto Front Plant Sci Plant Science INTRODUCTION AND AIMS: The intensive cropping system and imbalance use of chemical fertilizers to pursue high grain production and feed the fast-growing global population has disturbed agricultural sustainability and nutritional security. Understanding micronutrient fertilizer management especially zinc (Zn) through foliar application is a crucial agronomic approach that could improve agronomic biofortification of staple grain crops. The use of plant growth-promoting bacteria (PGPBs) is considered as one of the sustainable and safe strategies that could improve nutrient acquisition and uptake in edible tissues of wheat to combat Zn malnutrition and hidden hunger in humans. Therefore, the objective of this study was to evaluate the best-performing PGPB inoculants in combination with nano-Zn foliar application on the growth, grain yield, and concentration of Zn in shoots and grains, Zn use efficiencies, and estimated Zn intake under wheat cultivation in the tropical savannah of Brazil. METHODS: The treatments consisted of four PGPB inoculations (without inoculation, Azospirillum brasilense, Bacillus subtilis, and Pseudomonas fluorescens, applied by seeds) and five Zn doses (0, 0.75, 1.5, 3, and 6 kg ha(−1), applied from nano ZnO in two splits by leaf). RESULTS: Inoculation of B. subtilis and P. fluorescens in combination with 1.5 kg ha(−1) foliar nano-Zn fertilization increased the concentration of Zn, nitrogen, and phosphorus in the shoot and grain of wheat in the 2019 and 2020 cropping seasons. Shoot dry matter was increased by 5.3% and 5.4% with the inoculation of P. fluorescens, which was statistically not different from the treatments with inoculation of B. subtilis as compared to control. The grain yield of wheat was increased with increasing nano-Zn foliar application up to 5 kg Zn ha(−1) with the inoculation of A. brasilense in 2019, and foliar nano-Zn up to a dose of 1.5 kg ha(−1) along with the inoculation of P. fluorescens in the 2020 cropping season. The zinc partitioning index was increased with increasing nano Zn application up to 3 kg ha(−1) along with the inoculation of P. fluorescens. Zinc use efficiency and applied Zn recovery were improved at low doses of nano-Zn application in combination with the inoculation of A. brasilense, B. subtilis, and P. fluorescens, respectively, as compared to control. DISCUSSION: Therefore, inoculation with B. subtilis and P. fluorescens along with foliar nano-Zn application is considered a sustainable and environmentally safe strategy to increase nutrition, growth, productivity, and Zn biofortification of wheat in tropical savannah. Frontiers Media S.A. 2023-05-08 /pmc/articles/PMC10200892/ /pubmed/37223804 http://dx.doi.org/10.3389/fpls.2023.1146808 Text en Copyright © 2023 Jalal, Oliveira, Fernandes, da Silva, da Costa, de Souza, Leite, Biagini, Galindo and Teixeira Filho https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Jalal, Arshad
Oliveira, Carlos Eduardo da Silva
Fernandes, Guilherme Carlos
da Silva, Edson Cabral
da Costa, Kaway Nunes
de Souza, Jeferson Silva
Leite, Gabriel da Silva
Biagini, Antonio Leonardo Campos
Galindo, Fernando Shintate
Teixeira Filho, Marcelo Carvalho Minhoto
Integrated use of plant growth-promoting bacteria and nano-zinc foliar spray is a sustainable approach for wheat biofortification, yield, and zinc use efficiency
title Integrated use of plant growth-promoting bacteria and nano-zinc foliar spray is a sustainable approach for wheat biofortification, yield, and zinc use efficiency
title_full Integrated use of plant growth-promoting bacteria and nano-zinc foliar spray is a sustainable approach for wheat biofortification, yield, and zinc use efficiency
title_fullStr Integrated use of plant growth-promoting bacteria and nano-zinc foliar spray is a sustainable approach for wheat biofortification, yield, and zinc use efficiency
title_full_unstemmed Integrated use of plant growth-promoting bacteria and nano-zinc foliar spray is a sustainable approach for wheat biofortification, yield, and zinc use efficiency
title_short Integrated use of plant growth-promoting bacteria and nano-zinc foliar spray is a sustainable approach for wheat biofortification, yield, and zinc use efficiency
title_sort integrated use of plant growth-promoting bacteria and nano-zinc foliar spray is a sustainable approach for wheat biofortification, yield, and zinc use efficiency
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10200892/
https://www.ncbi.nlm.nih.gov/pubmed/37223804
http://dx.doi.org/10.3389/fpls.2023.1146808
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