Nanozinc and plant growth-promoting bacteria improve biochemical and metabolic attributes of maize in tropical Cerrado
IntroductionPlant 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...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-01-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2022.1046642/full |
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| author | Arshad Jalal Carlos Eduardo da Silva Oliveira Andréa de Castro Bastos Guilherme Carlos Fernandes Bruno Horschut de Lima Enes Furlani Junior Pedro Henrique Gomes de Carvalho Fernando Shintate Galindo Isabela Martins Bueno Gato Marcelo Carvalho Minhoto Teixeira Filho |
| author_facet | Arshad Jalal Carlos Eduardo da Silva Oliveira Andréa de Castro Bastos Guilherme Carlos Fernandes Bruno Horschut de Lima Enes Furlani Junior Pedro Henrique Gomes de Carvalho Fernando Shintate Galindo Isabela Martins Bueno Gato Marcelo Carvalho Minhoto Teixeira Filho |
| author_sort | Arshad Jalal |
| collection | DOAJ |
| description | IntroductionPlant 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.MethodsIn 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). ResultsInoculation 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.DiscussionTherefore, 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. |
| first_indexed | 2024-04-10T23:29:30Z |
| format | Article |
| id | doaj.art-132d6a0f68f741c290ca5debd0c4d351 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-04-10T23:29:30Z |
| publishDate | 2023-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-132d6a0f68f741c290ca5debd0c4d3512023-01-12T07:02:46ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2023-01-011310.3389/fpls.2022.10466421046642Nanozinc and plant growth-promoting bacteria improve biochemical and metabolic attributes of maize in tropical CerradoArshad Jalal0Carlos Eduardo da Silva Oliveira1Andréa de Castro Bastos2Guilherme Carlos Fernandes3Bruno Horschut de Lima4Enes Furlani Junior5Pedro Henrique Gomes de Carvalho6Fernando Shintate Galindo7Isabela Martins Bueno Gato8Marcelo Carvalho Minhoto Teixeira Filho9Department of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira, BrazilDepartment of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira, BrazilDepartment of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira, BrazilDepartment of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira, BrazilDepartment of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira, BrazilDepartment of Plant Science, Food Technology and Socio-Economics, São Paulo State University (UNESP), Ilha Solteira, BrazilDepartment of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira, BrazilCenter for Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Piracicaba, BrazilDepartment of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira, BrazilDepartment of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira, BrazilIntroductionPlant 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.MethodsIn 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). ResultsInoculation 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.DiscussionTherefore, 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.https://www.frontiersin.org/articles/10.3389/fpls.2022.1046642/fullPGPB (plant growth-promoting bacteria)photosynthesisplant growthnutrient uptakestorage proteinsamino acids |
| spellingShingle | Arshad Jalal Carlos Eduardo da Silva Oliveira Andréa de Castro Bastos Guilherme Carlos Fernandes Bruno Horschut de Lima Enes Furlani Junior Pedro Henrique Gomes de Carvalho Fernando Shintate Galindo Isabela Martins Bueno Gato Marcelo Carvalho Minhoto Teixeira Filho Nanozinc and plant growth-promoting bacteria improve biochemical and metabolic attributes of maize in tropical Cerrado Frontiers in Plant Science PGPB (plant growth-promoting bacteria) photosynthesis plant growth nutrient uptake storage proteins amino acids |
| title | Nanozinc and plant growth-promoting bacteria improve biochemical and metabolic attributes of maize in tropical Cerrado |
| title_full | Nanozinc and plant growth-promoting bacteria improve biochemical and metabolic attributes of maize in tropical Cerrado |
| title_fullStr | Nanozinc and plant growth-promoting bacteria improve biochemical and metabolic attributes of maize in tropical Cerrado |
| title_full_unstemmed | Nanozinc and plant growth-promoting bacteria improve biochemical and metabolic attributes of maize in tropical Cerrado |
| title_short | Nanozinc and plant growth-promoting bacteria improve biochemical and metabolic attributes of maize in tropical Cerrado |
| title_sort | nanozinc and plant growth promoting bacteria improve biochemical and metabolic attributes of maize in tropical cerrado |
| topic | PGPB (plant growth-promoting bacteria) photosynthesis plant growth nutrient uptake storage proteins amino acids |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2022.1046642/full |
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