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Gato IMB, Oliveira CEDS, Jalal A, Moreira VDA, Hashem AH, de Lima BH, Leite GDS, Al-Askar AA, Freitas LA, AbdElgawad H, Ferreira SVD, Santana LDJ, Bastos ADC, Galindo FS, Zoz T, Teixeira Filho MCM. Nitrogen uptake, grain yield, and oil concentration of dwarf castor beans under nitrogen rates and inoculation of rhizobacteria in grasses-legumes rotation. Front Microbiol 2024; 15:1451514. [PMID: 39252838 PMCID: PMC11381274 DOI: 10.3389/fmicb.2024.1451514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2024] [Accepted: 08/02/2024] [Indexed: 09/11/2024] Open
Abstract
Introduction Plant growth-promoting bacteria (PGPB) have been primarily studied for atmospheric nitrogen (N) fixation but they also have the capacity to improve nutrition and yield of crop plants. Methods Therefore, the objective of this research was to investigate the effects of inoculation with PGPB in association with different N rates on N uptake, grain yield, and oil concentration of dwarf castor beans in succession to legumes and grasses in Ilha Solteira, Brazil. The treatments consisted of N rates (0 to 180 kg ha-1 of N) and inoculation with three plant growth-promoting bacteria (Azospirillum brasiliense, Bacillus subtilis, and Pseudomonas fluorescens, applied by leaf) and a control with no-inoculation. Results The grain and oil yields of castor beans were increased by 20 and 40% at a rate of 103 kg ha-1 of N in succession to grasses as compared to without N application. In addition, the grain yield of castor bean after legumes was increased by 28, 64, and 40% with estimated rates of 97, 113, and 92 kg ha-1 of N in combination with inoculations of A. brasilense, B. subtilis, and P. fluorescens as compared to without N application, respectively. Shoot, grain, and total N uptake were improved with foliar inoculation of A. brasilense, B. subtilis, and P. fluorescens at the N rates of 45, 90, and 135 kg ha-1, respectively. Discussion and conclusions Topdressing of N at the rate of 103 kg ha-1 and foliar inoculation in succession to grasses and 180 kg ha-1 of N without the effect of foliar inoculation in succession to legumes are recommended for higher grain and oil yield of castor beans. Foliar inoculations with A. brasilense, B. subtilis, and P. fluorescens increased grain yield under reduced use of N fertilizer by 44, 37, and 49% in dwarf castor cultivation in succession to legumes, potentially contributing to sustainable agriculture.
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Affiliation(s)
- Isabela Martins Bueno Gato
- Department of Plant Protection, Rural Engineering and Soils, School of Engineering, São Paulo State University - UNESP-FEIS, Ilha Solteira, São Paulo, Brazil
| | - Carlos Eduardo da Silva Oliveira
- University Unit of Cassilândia, Department of Agronomy, State University of Mato Grosso do Sul-UEMS, Cassilândia, Mato Grosso do Sul, Brazil
| | - Arshad Jalal
- Department of Plant Protection, Rural Engineering and Soils, School of Engineering, São Paulo State University - UNESP-FEIS, Ilha Solteira, São Paulo, Brazil
| | - Vitória de Almeida Moreira
- Department of Plant Protection, Rural Engineering and Soils, School of Engineering, São Paulo State University - UNESP-FEIS, Ilha Solteira, São Paulo, Brazil
| | - Amr H Hashem
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
| | - Bruno Horschut de Lima
- Department of Plant Protection, Rural Engineering and Soils, School of Engineering, São Paulo State University - UNESP-FEIS, Ilha Solteira, São Paulo, Brazil
| | - Gabriel da Silva Leite
- Department of Plant Protection, Rural Engineering and Soils, School of Engineering, São Paulo State University - UNESP-FEIS, Ilha Solteira, São Paulo, Brazil
| | - Abdulaziz A Al-Askar
- Department of Botany and Microbiology, Faculty of Science, King Saud University, Riyadh, Saudi Arabia
| | - Leandro Alves Freitas
- Department of Plant Protection, Rural Engineering and Soils, School of Engineering, São Paulo State University - UNESP-FEIS, Ilha Solteira, São Paulo, Brazil
| | - Hamada AbdElgawad
- Integrated Molecular Plant Physiology Research, Department of Biology, University of Antwerp, Antwerp, Belgium
| | - Selton Vinicius Domingos Ferreira
- Department of Plant Protection, Rural Engineering and Soils, School of Engineering, São Paulo State University - UNESP-FEIS, Ilha Solteira, São Paulo, Brazil
| | - Leticia de Jesus Santana
- Department of Plant Protection, Rural Engineering and Soils, School of Engineering, São Paulo State University - UNESP-FEIS, Ilha Solteira, São Paulo, Brazil
| | - Andréa de Castro Bastos
- Department of Plant Protection, Rural Engineering and Soils, School of Engineering, São Paulo State University - UNESP-FEIS, Ilha Solteira, São Paulo, Brazil
| | - Fernando Shintate Galindo
- Department of Crop Production, College of Agricultural and Technology Sciences, São Paulo State University (UNESP), Dracena, São Paulo, Brazil
| | - Tiago Zoz
- University Unit of Mundo Novo, Department of Crop Science, State University of Mato Grosso do Sul-UEMS, Mundo Novo, Mato Grosso do Sul, Brazil
| | - Marcelo Carvalho Minhoto Teixeira Filho
- Department of Plant Protection, Rural Engineering and Soils, School of Engineering, São Paulo State University - UNESP-FEIS, Ilha Solteira, São Paulo, Brazil
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Jozay M, Zarei H, Khorasaninejad S, Miri T. Exploring the impact of plant growth-promoting bacteria in alleviating stress on Aptenia cordifolia subjected to irrigation with recycled water in multifunctional external green walls. BMC PLANT BIOLOGY 2024; 24:802. [PMID: 39179975 PMCID: PMC11344332 DOI: 10.1186/s12870-024-05511-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Accepted: 08/12/2024] [Indexed: 08/26/2024]
Abstract
BACKGROUND Rapid urbanization and population growth exert a substantial impact on the accessibility of drinking water resources, underscoring the imperative for wastewater treatment and the reuse of non-potable water in agriculture. In this context, green walls emerge as a potential solution to augment the purification of unconventional waters, simultaneously contributing to the aesthetic appeal and enjoyment of urban areas. This study aims to optimize water management in green walls by investigating the impact of bacterial strains on the biochemical properties and performance of the ornamental accumulator plant, Aptenia cordifolia, grown with various unconventional water sources. The experiments were designed as split plots based on a completely randomized block design with three replications. The main factor was recycled water with three levels (gray water, wastewater from the Kashfroud region of Mashhad, and urban water (control)). The sub-factor included different bacterial strains at four levels, composed of various bacteria combinations, (B1: Psedoumonas flucrecens + Azosporillum liposferum + Thiobacillus thioparus + Aztobactor chorococcum, B2: Paenibacillus polymyxa + Pseudomonas fildensis + Bacillus subtilis + Achromobacter xylosoxidans + Bacillus licheniform, B3: Pseudomonas putida + Acidithiobacillus ferrooxidans + Bacillus velezensis + Bacillus subtilis + Bacillus methylotrophicus + Mcrobacterium testaceum, and the control level without bacterial application (B0). RESULT The findings revealed significant differences at the 5% probability level across all morphophysiological traits, including plant height, the number and length of lateral branches, growth index, and plant coverage. Moreover, superior morphophysiological traits were observed in plants cultivated in substrates inoculated with wastewater irrigation. Substrates inoculated with bacteria exhibited the highest relative water content (RWC) and chlorophyll levels, coupled with the lowest relative saturation deficit (RSD), electrolyte leakage (EL), and carotenoid levels. Furthermore, plant growth-promoting bacteria (PGPB), from a biochemical perspective, were associated with increased carbohydrates, total protein, and anthocyanin. They also contributed to controlling oxidative stress caused by free radicals by enhancing the activity of antioxidant enzymes, such as guaiacol peroxidase (GPX), polyphenol oxidase (PPO), ascorbate peroxidase (APX), and peroxidase (POD), while reducing catalase enzyme (CAT) activity. This led to increased resistance to stress, as evidenced by a decrease in malondialdehyde and proline levels. The study concludes that the MIX B3, being both ecofriendly and economical, represents an effective strategy for mitigating the adverse effects of wastewater on plants. CONCLUSION This study showed that plant irrigation using wastewater increases the levels of proline, phenols and oxidative stress. However, the application of plant growth promoting bacteria (PGPB) reduced oxidative damage by increasing antioxidant activity and decreasing proline and phenol levels. These findings show the potential of bacterial treatments to improve plant growth and reduce adverse effects of recycled water irrigation.
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Affiliation(s)
- Mansoure Jozay
- Horticultural Sciences Department, Faculty of Plant Production, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Hossein Zarei
- Horticultural Sciences Department, Faculty of Plant Production, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.
| | - Sarah Khorasaninejad
- Horticultural Sciences Department, Faculty of Plant Production, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Taghi Miri
- School of Chemical Engineering, University of Birmingham, Birmingham, UK.
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Fanai A, Bohia B, Lalremruati F, Lalhriatpuii N, Lalrokimi, Lalmuanpuii R, Singh PK, Zothanpuia. Plant growth promoting bacteria (PGPB)-induced plant adaptations to stresses: an updated review. PeerJ 2024; 12:e17882. [PMID: 39184384 PMCID: PMC11344539 DOI: 10.7717/peerj.17882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Accepted: 07/17/2024] [Indexed: 08/27/2024] Open
Abstract
Plants and bacteria are co-evolving and interact with one another in a continuous process. This interaction enables the plant to assimilate the nutrients and acquire protection with the help of beneficial bacteria known as plant growth-promoting bacteria (PGPB). These beneficial bacteria naturally produce bioactive compounds that can assist plants' stress tolerance. Moreover, they employ various direct and indirect processes to induce plant growth and protect plants against pathogens. The direct mechanisms involve phytohormone production, phosphate solubilization, zinc solubilization, potassium solubilization, ammonia production, and nitrogen fixation while, the production of siderophores, lytic enzymes, hydrogen cyanide, and antibiotics are included under indirect mechanisms. This property can be exploited to prepare bioformulants for biofertilizers, biopesticides, and biofungicides, which are convenient alternatives for chemical-based products to achieve sustainable agricultural practices. However, the application and importance of PGPB in sustainable agriculture are still debatable despite its immense diversity and plant growth-supporting activities. Moreover, the performance of PGPB varies greatly and is dictated by the environmental factors affecting plant growth and development. This review emphasizes the role of PGPB in plant growth-promoting activities (stress tolerance, production of bioactive compounds and phytohormones) and summarises new formulations and opportunities.
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Affiliation(s)
- Awmpuizeli Fanai
- Department of Biotechnology, Mizoram University, Aizawl, Mizoram, India
| | | | | | - Nancy Lalhriatpuii
- Department of Biotechnology/Life Sciences, Pachhunga University College, Aizawl, Mizoram, India
| | - Lalrokimi
- Department of Biotechnology, Mizoram University, Aizawl, Mizoram, India
| | | | - Prashant Kumar Singh
- Department of Biotechnology/Life Sciences, Pachhunga University College, Aizawl, Mizoram, India
| | - Zothanpuia
- Department of Biotechnology/Life Sciences, Pachhunga University College, Aizawl, Mizoram, India
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Thiengo CC, Galindo FS, Bernardes JVS, da Rocha LO, da Silva CD, Burak DL, Lavres J. Nitrogen fertilization regulates crosstalk between marandu palisadegrass and Herbaspirillum seropedicae: An investigation based on 15N isotopic analysis and root morphology. ENVIRONMENTAL RESEARCH 2024; 249:118345. [PMID: 38331147 DOI: 10.1016/j.envres.2024.118345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 01/16/2024] [Accepted: 01/27/2024] [Indexed: 02/10/2024]
Abstract
Strategies seeking to increase the use efficiency of nitrogen (N) fertilizers and that benefit plant growth through multiple mechanisms can reduce production costs and contribute to more sustainable agriculture free of polluting residues. Under controlled conditions, we investigated the compatibility between foliar inoculation with an endophytic diazotrophic bacterium (Herbaspirillum seropedicae HRC54) at control and low, medium and high N fertilization levels (0, 25, 50 and 100 mg of N kg-1 as urea, respectively) in Marandu palisadegrass. Common procedures in our research field (biometric and nutritional assessments) were combined with isotopic techniques (natural abundance - δ15N‰ and 15N isotope dilution) and root scanning to determine the contribution of fixed N and recovery of N fertilizer by the grass. Overall, the combined use of 15N isotopic techniques revealed that inoculation not only improved the recovery of applied N-urea from the soil but also provided fixed nitrogen to Marandu palisade grass, resulting in an increase in the total accumulated N. When inoculated plants grew at control and low levels of N, a positive cascade effect encompassing root growth stimulation (nodes of smaller diameter roots), better soil and fertilizer resource exploitation and increased forage production was observed. In contrast, increasing N reduced the contributions of N fixed by H. seropedicae from 21.5% at the control level to 8.6% at the high N level. Given the minimal to no observed growth promotion, this condition was deemed inhibitory to the positive effects of H. seropedicae. We discuss how to make better use of H. seropedicae inoculation in Marandu palisadegrass, albeit on a small scale, thus contributing to a more rational and efficient use of N fertilizers. Finally, we pose questions for future investigations based on 15N isotopic techniques under field conditions, which have great applicability potential.
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Affiliation(s)
- Cassio Carlette Thiengo
- Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba, 13418-900, Brazil.
| | - Fernando Shintate Galindo
- Faculty of Agricultural and Technological Sciences, São Paulo State University, Dracena, 17900-000, Brazil.
| | | | - Leticia Oliveira da Rocha
- Nucleus for the Development of Biological Inputs for Agriculture, North Fluminense State University Darcy Ribeiro, Campos dos Goytacazes, 28013-602, Brazil.
| | - Carlos Diego da Silva
- Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba, 13418-900, Brazil.
| | - Diego Lang Burak
- Center for Agricultural Sciences and Engineering, Federal University of Espírito Santo, Alegre, 29500-000, Brazil.
| | - José Lavres
- Center for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, 13416-000, Brazil.
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Aguado-Santacruz GA, Arreola-Tostado JM, Aguirre-Mancilla C, García-Moya E. Use of systemic biofertilizers in sugarcane results in highly reproducible increments in yield and quality of harvests. Heliyon 2024; 10:e28750. [PMID: 38596061 PMCID: PMC11002039 DOI: 10.1016/j.heliyon.2024.e28750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 02/28/2024] [Accepted: 03/24/2024] [Indexed: 04/11/2024] Open
Abstract
The utilization of a novel (systemic) biofertilizer containing Pseudomonas fluorescens, Azospirillum brasilense, and Bacillus subtilis and possessing the technology to facilitate the entry of bacteria through the stomata, was evaluated at three localities in Mexico (Potrero Nuevo, Veracruz; Ameca, Jalisco; and Champotón, Campeche) in two sugarcane varieties (NCO-310 and Mex 57-473) at different time scales. Inoculation of the systemic biofertilizer was imposed over the local agricultural management of the sugarcane; chemical fertilization of the experimental parcels at Potrero Nuevo was done using 70-20-20 and 120-80-80 at Ameca and Champotón. Three doses of the biofertilizer per hectare were applied during the annual productive cycle of sugarcane at each site; one year at Potrero Nuevo and Champotón; and six years at Ameca. The annual sugarcane yield was evaluated at each site. Additionally, sugar quality (°Brix or sucrose content) was evaluated at the three localities, while different variables of stalk performance were also measured at Ameca and Champotón. Our data provide evidence that this systemic biofertilizer consistently and reliably increased the sugarcane yield at all localities during the time of evaluation, ranging from 73.7 tons ha-1 at Potrero Nuevo (2.5 times increase; P < 0.05) and 77.7 tons ha-1 at Ameca (1.9 times increase; P < 0.05) to 23.8 tons ha-1 at Champotón (1.4 times increase; P < 0.05). This increase in sugarcane biomass was related to increased tillering rather than increased stalk height or diameter. This novel biological product improved the sugarcane quality in terms of °Brix (P < 0.05, 2.6° difference) and sucrose content (P < 0.5, 0.7% difference).
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Affiliation(s)
- Gerardo Armando Aguado-Santacruz
- BIOqualitum. Oriente 7 # 158, Ciudad Industrial, Celaya, Guanajuato, 38010, Mexico
- Campo Experimental Bajío, Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias. Km 6.5 Carretera Celaya-San Miguel de Allende, Celaya, Guanajuato, 38110, Mexico
| | | | - César Aguirre-Mancilla
- Tecnológico Nacional de México / IT de Roque. Km 8 Carretera Celaya - Juventino Rosas, C.P. 38110, Celaya, Guanajuato, Mexico
| | - Edmundo García-Moya
- Colegio de Postgraduados, Postgrado en Botánica, Montecillo, Texcoco, Estado de México, Mexico
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Pang F, Li Q, Solanki MK, Wang Z, Xing YX, Dong DF. Soil phosphorus transformation and plant uptake driven by phosphate-solubilizing microorganisms. Front Microbiol 2024; 15:1383813. [PMID: 38601943 PMCID: PMC11005474 DOI: 10.3389/fmicb.2024.1383813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 03/14/2024] [Indexed: 04/12/2024] Open
Abstract
Phosphorus (P) is an important nutrient for plants, and a lack of available P greatly limits plant growth and development. Phosphate-solubilizing microorganisms (PSMs) significantly enhance the ability of plants to absorb and utilize P, which is important for improving plant nutrient turnover and yield. This article summarizes and analyzes how PSMs promote the absorption and utilization of P nutrients by plants from four perspectives: the types and functions of PSMs, phosphate-solubilizing mechanisms, main functional genes, and the impact of complex inoculation of PSMs on plant P acquisition. This article reviews the physiological and molecular mechanisms of phosphorus solubilization and growth promotion by PSMs, with a focus on analyzing the impact of PSMs on soil microbial communities and its interaction with root exudates. In order to better understand the ability of PSMs and their role in soil P transformation and to provide prospects for research on PSMs promoting plant P absorption. PSMs mainly activate insoluble P through the secretion of organic acids, phosphatase production, and mycorrhizal symbiosis, mycorrhizal symbiosis indirectly activates P via carbon exchange. PSMs can secrete organic acids and produce phosphatase, which plays a crucial role in soil P cycling, and related genes are involved in regulating the P-solubilization ability. This article reviews the mechanisms by which microorganisms promote plant uptake of soil P, which is of great significance for a deeper understanding of PSM-mediated soil P cycling, plant P uptake and utilization, and for improving the efficiency of P utilization in agriculture.
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Affiliation(s)
- Fei Pang
- College of Agriculture, Guangxi University, Nanning, China
| | - Qing Li
- College of Agriculture, Guangxi University, Nanning, China
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, Smart Agricultural College, Yulin Normal University, Yulin, China
| | - Manoj Kumar Solanki
- Department of Life Sciences and Biological Sciences, IES University, Bhopal, India
| | - Zhen Wang
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, Smart Agricultural College, Yulin Normal University, Yulin, China
| | - Yong-Xiu Xing
- College of Agriculture, Guangxi University, Nanning, China
| | - Deng-Feng Dong
- College of Agriculture, Guangxi University, Nanning, China
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Yousef AF, Ali AM, Azab MA, Lamlom SF, Al-Sayed HM. Improved plant yield of potato through exogenously applied potassium fertilizer sources and biofertilizer. AMB Express 2023; 13:124. [PMID: 37938361 PMCID: PMC10632356 DOI: 10.1186/s13568-023-01627-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 10/06/2023] [Indexed: 11/09/2023] Open
Abstract
Excessive usage of chemical fertilizers has detrimental effects on the environment and the safety of food. Conversely, utilizing organic fertilizers such as sage offers several advantages, including cost-effectiveness, soil enhancement, and promotion of root development. A two-year field experiment was conducted to investigate the impact of different potassium fertilizer sources and biofertilizers (specifically Bacillus cereus (MBc)) on potato plants. The experiment employed a split-plot design with three replicates, where the main plot factor was MBc (with and without), and the subplot factor was the sources of potassium fertilizer (control without K fertilizer, 100% Feldspar (FD), 100% Filter cake (FC), 75% FD + 25% FC, 25% FD + 75% FC, and 50% FD + 50% FC). The purpose was to examine the growth response of potato plants to these treatments. The results indicated that all treatments increased plant height, stem count, and tuber dry matter compared to the control. Furthermore, all treatments exhibited a higher uptake of macronutrients (N, P, and K) compared to the control. Notably, the plants treated with 100FC combined with MBc showed a significant 104.74% increase in total tuber weight compared to the control treatment. Additionally, the addition of 100FC with MBc significantly enhanced the availability of N, P, and K by 73.13%, 110.33%, and 51.88% respectively, compared to the control treatment. Apart from the biofertilizers, the individual application of FC and its combination with FD also demonstrated positive effects on soil fertility, potato growth, and yield.
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Affiliation(s)
- Ahmed Fathy Yousef
- Department of Horticulture, College of Agriculture, University of Al-Azhar (branch Assiut), Assiut, 71524, Egypt.
| | - Ahmed Mahmoud Ali
- Department of Soils and Water Sciences, Faculty of Agriculture, Al-Azhar University (Assiut Branch), Assiut, 71524, Egypt
| | - Mohamed AbdAllah Azab
- Horticulture Department, Faculty of Agriculture (Assiut branch), Vegetable Sciences, Al-Azhar University, Assiut, 71524, Egypt
| | - Sobhi F Lamlom
- Plant Production Department, Faculty of Agriculture Saba Basha, Alexandria University, Alexandria, 21531, Egypt
| | - Hassan Mohamed Al-Sayed
- Department of Soils and Water Sciences, Faculty of Agriculture, Al-Azhar University (Assiut Branch), Assiut, 71524, Egypt
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Fernandes GC, Rosa PAL, Jalal A, Oliveira CEDS, Galindo FS, Viana RDS, De Carvalho PHG, Silva ECD, Nogueira TAR, Al-Askar AA, Hashem AH, AbdElgawad H, Teixeira Filho MCM. Technological Quality of Sugarcane Inoculated with Plant-Growth-Promoting Bacteria and Residual Effect of Phosphorus Rates. PLANTS (BASEL, SWITZERLAND) 2023; 12:2699. [PMID: 37514313 PMCID: PMC10385306 DOI: 10.3390/plants12142699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/11/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023]
Abstract
Phosphate fertilization in highly weathered soils has been a major challenge for sugarcane production. The objective of this work was to evaluate the foliar levels of phosphorus (P) and nitrogen (N) and the technological quality and productivity of second ratoon cane as a function of inoculation with plant-growth-promoting bacteria (PGPBs) together with the residual effect of phosphate fertilization. The experiment was carried out at the research and extension farm of Ilha Solteira, state of São Paulo, Brazil. The experiment was designed in a randomized block with three replications in a 5 × 8 factorial scheme. The treatments consisted of five residual doses of phosphorus (0, 45, 90, 135 and 180 kg ha-1 of P2O5, 46% P) applied at planting from the source of triple superphosphate and eight inoculations from three species of PGPB (Azospirillum brasilense, Bacillus subtilis and Pseudomonas fluorescens), applied in single or co-inoculation at the base of stems of sugarcane variety RB92579. Inoculation with PGPBs influenced leaf N concentration, while inoculations with Pseudomonas fluorescens and combinations of bacteria together with the highest doses exerted a positive effect on leaf P concentration. Co-inoculation with A. brasilense + Pseudomonas fluorescens associated with a residual dose of 135 kg ha-1 of P2O5 increased stem productivity by 42%. Thus, it was concluded that inoculations with Pseudomonas fluorescens and their combinations are beneficial for the sugarcane crop, reducing phosphate fertilization and increasing productivity.
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Affiliation(s)
- Guilherme Carlos Fernandes
- Department of Plant Health, College of Engineering, São Paulo State University (UNESP), Rural Engineering and Soils, Ilha Solteira 15385-000, SP, Brazil
| | - Poliana Aparecida Leonel Rosa
- Department of Plant Health, College of Engineering, São Paulo State University (UNESP), Rural Engineering and Soils, Ilha Solteira 15385-000, SP, Brazil
| | - Arshad Jalal
- Department of Plant Health, College of Engineering, São Paulo State University (UNESP), Rural Engineering and Soils, Ilha Solteira 15385-000, SP, Brazil
| | - Carlos Eduardo da Silva Oliveira
- Department of Plant Health, College of Engineering, São Paulo State University (UNESP), Rural Engineering and Soils, Ilha Solteira 15385-000, SP, Brazil
| | - Fernando Shintate Galindo
- Department of Plant Production, Faculty of Agricultural and Technological Sciences, São Paulo State University (UNESP), Dracena 17900-000, SP, Brazil
| | - Ronaldo da Silva Viana
- Department of Plant Production, Faculty of Agricultural and Technological Sciences, São Paulo State University (UNESP), Dracena 17900-000, SP, Brazil
| | - Pedro Henrique Gomes De Carvalho
- Department of Plant Health, College of Engineering, São Paulo State University (UNESP), Rural Engineering and Soils, Ilha Solteira 15385-000, SP, Brazil
| | - Edson Cabral da Silva
- Department of Plant Health, College of Engineering, São Paulo State University (UNESP), Rural Engineering and Soils, Ilha Solteira 15385-000, SP, Brazil
| | - Thiago Assis Rodrigues Nogueira
- Department of Plant Health, College of Engineering, São Paulo State University (UNESP), Rural Engineering and Soils, Ilha Solteira 15385-000, SP, Brazil
- Department of Agricultural Sciences, School of Agricultural and Veterinarian Sciences, São Paulo State University (UNESP), Via do Prof Access Paulo Donato Castellane, s/n, Jabotcabal 14884-900, SP, Brazil
| | - Abdulaziz A Al-Askar
- Department of Botany and Microbiology, Faculty of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Amr H Hashem
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Cairo 11884, Egypt
| | - Hamada AbdElgawad
- Integrated Molecular Plant Physiology Research, Department of Biology, University of Antwerp, 2020 Antwerp, Belgium
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Jalal A, Oliveira CEDS, Fernandes GC, da Silva EC, da Costa KN, de Souza JS, Leite GDS, Biagini ALC, Galindo FS, Teixeira Filho MCM. Integrated use of plant growth-promoting bacteria and nano-zinc foliar spray is a sustainable approach for wheat biofortification, yield, and zinc use efficiency. FRONTIERS IN PLANT SCIENCE 2023; 14:1146808. [PMID: 37223804 PMCID: PMC10200892 DOI: 10.3389/fpls.2023.1146808] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 04/19/2023] [Indexed: 05/25/2023]
Abstract
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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Affiliation(s)
- Arshad Jalal
- Department of Rural Engineering, Plant Health and Soils, São Paulo State University (UNESP), Ilha Solteira, Brazil
| | | | - Guilherme Carlos Fernandes
- Department of Rural Engineering, Plant Health and Soils, São Paulo State University (UNESP), Ilha Solteira, Brazil
| | - Edson Cabral da Silva
- Department of Rural Engineering, Plant Health and Soils, São Paulo State University (UNESP), Ilha Solteira, Brazil
| | - Kaway Nunes da Costa
- Department of Rural Engineering, Plant Health and Soils, São Paulo State University (UNESP), Ilha Solteira, Brazil
| | - Jeferson Silva de Souza
- Department of Rural Engineering, Plant Health and Soils, São Paulo State University (UNESP), Ilha Solteira, Brazil
| | - Gabriel da Silva Leite
- Department of Rural Engineering, Plant Health and Soils, São Paulo State University (UNESP), Ilha Solteira, Brazil
| | | | - Fernando Shintate Galindo
- Faculty of Agricultural Sciences and Technology, Department of Plant Production, São Paulo State University (UNESP), Dracena, Brazil
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Jalal A, Oliveira CEDS, Rosa PAL, Galindo FS, Teixeira Filho MCM. Beneficial Microorganisms Improve Agricultural Sustainability under Climatic Extremes. Life (Basel) 2023; 13:life13051102. [PMID: 37240747 DOI: 10.3390/life13051102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 04/08/2023] [Accepted: 04/24/2023] [Indexed: 05/28/2023] Open
Abstract
The challenging alterations in climate in the last decades have had direct and indirect influences on biotic and abiotic stresses that have led to devastating implications on agricultural crop production and food security. Extreme environmental conditions, such as abiotic stresses, offer great opportunities to study the influence of different microorganisms in plant development and agricultural productivity. The focus of this review is to highlight the mechanisms of plant growth-promoting microorganisms (especially bacteria and fungi) adapted to environmental induced stresses such as drought, salinity, heavy metals, flooding, extreme temperatures, and intense light. The present state of knowledge focuses on the potential, prospective, and biotechnological approaches of plant growth-promoting bacteria and fungi to improve plant nutrition, physio-biochemical attributes, and the fitness of plants under environmental stresses. The current review focuses on the importance of the microbial community in improving sustainable crop production under changing climatic scenarios.
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Affiliation(s)
- Arshad Jalal
- Department of Plant Health, Rural Engineering and Soils, Faculty of Engineering, São Paulo State University (UNESP), Av. Brasil 56-Centro, Ilha Solteira 15385-000, SP, Brazil
| | - Carlos Eduardo da Silva Oliveira
- Department of Plant Health, Rural Engineering and Soils, Faculty of Engineering, São Paulo State University (UNESP), Av. Brasil 56-Centro, Ilha Solteira 15385-000, SP, Brazil
| | - Poliana Aparecida Leonel Rosa
- Department of Plant Health, Rural Engineering and Soils, Faculty of Engineering, São Paulo State University (UNESP), Av. Brasil 56-Centro, Ilha Solteira 15385-000, SP, Brazil
| | - Fernando Shintate Galindo
- Faculty of Agricultural Sciences and Technology, São Paulo State University (UNESP), Campus of Dracena, Sao Paulo 17900-000, SP, Brazil
| | - Marcelo Carvalho Minhoto Teixeira Filho
- Department of Plant Health, Rural Engineering and Soils, Faculty of Engineering, São Paulo State University (UNESP), Av. Brasil 56-Centro, Ilha Solteira 15385-000, SP, Brazil
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Gaspareto RN, Jalal A, Ito WCN, Oliveira CEDS, Garcia CMDP, Boleta EHM, Rosa PAL, Galindo FS, Buzetti S, Ghaley BB, Filho MCMT. Inoculation with Plant Growth-Promoting Bacteria and Nitrogen Doses Improves Wheat Productivity and Nitrogen Use Efficiency. Microorganisms 2023; 11:microorganisms11041046. [PMID: 37110469 PMCID: PMC10142644 DOI: 10.3390/microorganisms11041046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/08/2023] [Accepted: 04/10/2023] [Indexed: 04/29/2023] Open
Abstract
Wheat is one of the staple foods of the global population due to its adaptability to a wide range of environments. Nitrogen is one of the crucial limiting factors in wheat production and is considered a challenge to food security. Therefore, sustainable agricultural technologies such as seed inoculation with plant growth-promoting bacteria (PGPBs) can be adopted to promote biological nitrogen fixation (BNF) for higher crop productivity. In this context, the objective of the current study was to evaluate the effects of nitrogen fertilization and seed inoculations with Azospirillum brasilense, Bacillus subtilis and A. brasilense + B. subtilis on agronomic and yield attributes, grain yield, grain N accumulation, N use efficiency and applied N recovery in Brazilian Cerrado, which consists of gramineous woody savanna. The experiment was carried out in two cropping seasons in Rhodic Haplustox soil under a no-tillage system. The experiment was designed in a randomized complete block in a 4 × 5 factorial scheme, with four replications. The treatments consisted of four seed inoculations (control-without inoculation, inoculation with A. brasilense, B. subtilis and A. brasilense + B. subtilis) under five N doses (0, 40, 80, 120 and 160 kg ha-1, applied from urea) at the wheat tillering stage. Seed co-inoculation with A. brasilense + B. subtilis increased grain N accumulation, number of spikes m-1, grains spike-1 and grain yield of wheat in an irrigated no-tillage system of tropical savannah, regardless of the applied N doses. Nitrogen fertilization at a dose of 80 kg ha-1 significantly increased grain N accumulation and number of grains spikes-1 and nitrogen use efficiency. Recovery of applied N was increased with inoculation of B. subtilis and co-inoculation of A. brasilense + B. subtilis at increasing N doses. Therefore, N fertilization can be reduced by the inclusion of co-inoculation with A. brasilense + B. subtilis in the cultivation of winter wheat under a no-tillage system of Brazilian Cerrado.
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Affiliation(s)
- Rafaela Neris Gaspareto
- Department of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira 15385-000, SP, Brazil
| | - Arshad Jalal
- Department of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira 15385-000, SP, Brazil
| | - William Cesar Nishimoto Ito
- Department of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira 15385-000, SP, Brazil
| | - Carlos Eduardo da Silva Oliveira
- Department of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira 15385-000, SP, Brazil
| | - Cássia Maria de Paula Garcia
- Department of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira 15385-000, SP, Brazil
| | | | - Poliana Aparecida Leonel Rosa
- Department of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira 15385-000, SP, Brazil
| | - Fernando Shintate Galindo
- Department of Crop Production, College of Agricultural and Technology Sciences, São Paulo State University (UNESP), Dracena 17900-000, SP, Brazil
| | - Salatiér Buzetti
- Department of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira 15385-000, SP, Brazil
| | - Bhim Bahadur Ghaley
- Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, 2630 Taastrup, Denmark
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Pelloso MF, Vidigal Filho PS, Scapim CA, Tiene Ortiz AH, Numoto AY, Miranda Freitas IR. Agronomic performance and quality of baby corn in response to the inoculation of seeds with Azospirillum brasilense and nitrogen fertilization in the summer harvest. Heliyon 2023; 9:e14618. [PMID: 37035362 PMCID: PMC10073748 DOI: 10.1016/j.heliyon.2023.e14618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 03/10/2023] [Accepted: 03/13/2023] [Indexed: 03/19/2023] Open
Abstract
The association with Azospirillum brasilense promotes better growth and development in corn plants due to biological N fixation, the capacity to help in the synthesis of phytohormones and to improve the use of nutrients by crop plants. However, there aren't specific recommendations for the use of inoculation in baby corn crop. Thus, this study aimed to evaluate the effects of seed inoculation with A. brasilense, associated with nitrogen fertilization management, on the agronomic performance and chemical quality of baby corn grown in three summer growing seasons (2014/2015; 2015/2016 and 2016/2017). The evaluated treatments consisted of combination of five levels of seed inoculation (0.0, 50, 100, 150 and 200 mL 60,000 seeds-1) based on Azospirillum brasilense, two levels of nitrogen fertilization at sowing time (0.0 and 30.0 kg of N ha-1) and two levels of nitrogen in topdressing (0.0 and 110.0 kg of N ha-1), applied at the V4 stage of the popcorn hybrid IAC 125. The characteristics evaluated were: leaf area index (LAI), leaf nitrogen content (LNC), total husked spikelets yield (HSY) and commercial spikelets yield (CSY), and the chemical characteristics of the commercial spikelets: crude protein content (CPC), starch content (STC) and total sugar content (TSC). The inoculation, when combined with nitrogen fertilization, provided positive responses for LAI and provided an average increment of 6 kg ha-1 to CSY for every 10 mL 60,000 seeds-1 of inoculant added to the seeds. The LNC, CPC, STC and TSC weren't affected by seed inoculation. Nitrogen fertilization provided increments for all characteristics evaluated, except for TSC, which was negatively affected by nitrogen topdressing. The baby corn crop responded positively to seed inoculation with Azospirillum brasilense, combined with Nitrogen fertilization.
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Jalal A, Oliveira CEDS, Bastos ADC, Fernandes GC, de Lima BH, Furlani Junior E, de Carvalho PHG, Galindo FS, Gato IMB, Teixeira Filho MCM. Nanozinc and plant growth-promoting bacteria improve biochemical and metabolic attributes of maize in tropical Cerrado. FRONTIERS IN PLANT SCIENCE 2023; 13:1046642. [PMID: 36714773 PMCID: PMC9878843 DOI: 10.3389/fpls.2022.1046642] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 12/05/2022] [Indexed: 05/10/2023]
Abstract
Introduction 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.
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Affiliation(s)
- Arshad Jalal
- Department of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira, Brazil
| | | | - Andréa de Castro Bastos
- Department of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira, Brazil
| | - Guilherme Carlos Fernandes
- Department of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira, Brazil
| | - Bruno Horschut de Lima
- Department of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira, Brazil
| | - Enes Furlani Junior
- Department of Plant Science, Food Technology and Socio-Economics, São Paulo State University (UNESP), Ilha Solteira, Brazil
| | | | | | - Isabela Martins Bueno Gato
- Department of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira, Brazil
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Jalal A, da Silva Oliveira CE, Galindo FS, Rosa PAL, Gato IMB, de Lima BH, Teixeira Filho MCM. Regulatory Mechanisms of Plant Growth-Promoting Rhizobacteria and Plant Nutrition against Abiotic Stresses in Brassicaceae Family. Life (Basel) 2023; 13:211. [PMID: 36676160 PMCID: PMC9860783 DOI: 10.3390/life13010211] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 12/29/2022] [Accepted: 01/05/2023] [Indexed: 01/12/2023] Open
Abstract
Extreme environmental conditions, such as abiotic stresses (drought, salinity, heat, chilling and intense light), offer great opportunities to study how different microorganisms and plant nutrition can influence plant growth and development. The intervention of biological agents such as plant growth-promoting rhizobacteria (PGPRs) coupled with proper plant nutrition can improve the agricultural importance of different plant species. Brassicaceae (Cruciferae) belongs to the monophyletic taxon and consists of around 338 genera and 3709 species worldwide. Brassicaceae is composed of several important species of economical, ornamental and food crops (vegetables, cooking oils, forage, condiments and industrial species). Sustainable production of Brassicas plants has been compromised over the years due to several abiotic stresses and the unbalanced utilization of chemical fertilizers and uncertified chemicals that ultimately affect the environment and human health. This chapter summarized the influence of PGPRs and nutrient management in the Brassicaceae family against abiotic stresses. The use of PGPRs contributed to combating climate-induced change/abiotic factors such as drought, soil and water salinization and heavy metal contamination that limits the general performance of plants. Brassica is widely utilized as an oil and vegetable crop and is harshly affected by abiotic stresses. Therefore, the use of PGPRs along with proper mineral nutrients management is a possible strategy to cope with abiotic stresses by improving biochemical, physiological and growth attributes and the production of brassica in an eco-friendly environment.
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Affiliation(s)
- Arshad Jalal
- Department of Plant Health, Rural Engineering, and Soils, Campus of Ilha Solteira, São Paulo State University (UNESP), Av. Brasil, 56- Centro, Ilha Solteira 15385-000, SP, Brazil
| | - Carlos Eduardo da Silva Oliveira
- Department of Plant Health, Rural Engineering, and Soils, Campus of Ilha Solteira, São Paulo State University (UNESP), Av. Brasil, 56- Centro, Ilha Solteira 15385-000, SP, Brazil
| | - Fernando Shintate Galindo
- Faculty of Agricultural and Technological Sciences, Campus of Dracena, São Paulo State University (UNESP), Dracena 17900-000, SP, Brazil
| | - Poliana Aparecida Leonel Rosa
- Department of Plant Health, Rural Engineering, and Soils, Campus of Ilha Solteira, São Paulo State University (UNESP), Av. Brasil, 56- Centro, Ilha Solteira 15385-000, SP, Brazil
| | - Isabela Martins Bueno Gato
- Department of Plant Health, Rural Engineering, and Soils, Campus of Ilha Solteira, São Paulo State University (UNESP), Av. Brasil, 56- Centro, Ilha Solteira 15385-000, SP, Brazil
| | - Bruno Horschut de Lima
- Department of Plant Health, Rural Engineering, and Soils, Campus of Ilha Solteira, São Paulo State University (UNESP), Av. Brasil, 56- Centro, Ilha Solteira 15385-000, SP, Brazil
| | - Marcelo Carvalho Minhoto Teixeira Filho
- Department of Plant Health, Rural Engineering, and Soils, Campus of Ilha Solteira, São Paulo State University (UNESP), Av. Brasil, 56- Centro, Ilha Solteira 15385-000, SP, Brazil
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Guo DJ, Singh P, Yang B, Singh RK, Verma KK, Sharma A, Khan Q, Qin Y, Chen TS, Song XP, Zhang BQ, Li DP, Li YR. Complete genome analysis of sugarcane root associated endophytic diazotroph Pseudomonas aeruginosa DJ06 revealing versatile molecular mechanism involved in sugarcane development. Front Microbiol 2023; 14:1096754. [PMID: 37152763 PMCID: PMC10157262 DOI: 10.3389/fmicb.2023.1096754] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 03/27/2023] [Indexed: 05/09/2023] Open
Abstract
Sugarcane is an important sugar and bioenergy source and a significant component of the economy in various countries in arid and semiarid. It requires more synthetic fertilizers and fungicides during growth and development. However, the excess use of synthetic fertilizers and fungicides causes environmental pollution and affects cane quality and productivity. Plant growth-promoting bacteria (PGPB) indirectly or directly promote plant growth in various ways. In this study, 22 PGPB strains were isolated from the roots of the sugarcane variety GT42. After screening of plant growth-promoting (PGP) traits, it was found that the DJ06 strain had the most potent PGP activity, which was identified as Pseudomonas aeruginosa by 16S rRNA gene sequencing. Scanning electron microscopy (SEM) and green fluorescent protein (GFP) labeling technology confirmed that the DJ06 strain successfully colonized sugarcane tissues. The complete genome sequencing of the DJ06 strain was performed using Nanopore and Illumina sequencing platforms. The results showed that the DJ06 strain genome size was 64,90,034 bp with a G+C content of 66.34%, including 5,912 protein-coding genes (CDSs) and 12 rRNA genes. A series of genes related to plant growth promotion was observed, such as nitrogen fixation, ammonia assimilation, siderophore, 1-aminocyclopropane-1-carboxylic acid (ACC), deaminase, indole-3-acetic acid (IAA) production, auxin biosynthesis, phosphate metabolism, hydrolase, biocontrol, and tolerance to abiotic stresses. In addition, the effect of the DJ06 strain was also evaluated by inoculation in two sugarcane varieties GT11 and B8. The length of the plant was increased significantly by 32.43 and 12.66% and fresh weight by 89.87 and 135.71% in sugarcane GT11 and B8 at 60 days after inoculation. The photosynthetic leaf gas exchange also increased significantly compared with the control plants. The content of indole-3-acetic acid (IAA) was enhanced and gibberellins (GA) and abscisic acid (ABA) were reduced in response to inoculation of the DJ06 strain as compared with control in two sugarcane varieties. The enzymatic activities of oxidative, nitrogen metabolism, and hydrolases were also changed dramatically in both sugarcane varieties with inoculation of the DJ06 strain. These findings provide better insights into the interactive action mechanisms of the P. aeruginosa DJ06 strain and sugarcane plant development.
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Affiliation(s)
- Dao-Jun Guo
- College of Life Sciences and Engineering, Hexi University, Zhangye, Gansu, China
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Pratiksha Singh
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Bin Yang
- College of Life Sciences and Engineering, Hexi University, Zhangye, Gansu, China
| | - Rajesh Kumar Singh
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Krishan K. Verma
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Anjney Sharma
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Qaisar Khan
- College of Agriculture, Guangxi University, Nanning, Guangxi, China
| | - Ying Qin
- College of Agriculture, Guangxi University, Nanning, Guangxi, China
| | - Ting-Su Chen
- Microbiology Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Xiu-Peng Song
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Bao-Qing Zhang
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Dong-Ping Li
- Microbiology Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
- Dong-Ping Li
| | - Yang-Rui Li
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
- *Correspondence: Yang-Rui Li
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Sindhu SS, Sehrawat A, Glick BR. The involvement of organic acids in soil fertility, plant health and environment sustainability. Arch Microbiol 2022; 204:720. [DOI: 10.1007/s00203-022-03321-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 10/22/2022] [Accepted: 11/03/2022] [Indexed: 11/21/2022]
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Phour M, Sindhu SS. Mitigating abiotic stress: microbiome engineering for improving agricultural production and environmental sustainability. PLANTA 2022; 256:85. [PMID: 36125564 DOI: 10.1007/s00425-022-03997-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 09/11/2022] [Indexed: 06/15/2023]
Abstract
The responses of plants to different abiotic stresses and mechanisms involved in their mitigation are discussed. Production of osmoprotectants, antioxidants, enzymes and other metabolites by beneficial microorganisms and their bioengineering ameliorates environmental stresses to improve food production. Progressive intensification of global agriculture, injudicious use of agrochemicals and change in climate conditions have deteriorated soil health, diminished the microbial biodiversity and resulted in environment pollution along with increase in biotic and abiotic stresses. Extreme weather conditions and erratic rains have further imposed additional stress for the growth and development of plants. Dominant abiotic stresses comprise drought, temperature, increased salinity, acidity, metal toxicity and nutrient starvation in soil, which severely limit crop production. For promoting sustainable crop production in environmentally challenging environments, use of beneficial microbes has emerged as a safer and sustainable means for mitigation of abiotic stresses resulting in improved crop productivity. These stress-tolerant microorganisms play an effective role against abiotic stresses by enhancing the antioxidant potential, improving nutrient acquisition, regulating the production of plant hormones, ACC deaminase, siderophore and exopolysaccharides and accumulating osmoprotectants and, thus, stimulating plant biomass and crop yield. In addition, bioengineering of beneficial microorganisms provides an innovative approach to enhance stress tolerance in plants. The use of genetically engineered stress-tolerant microbes as inoculants of crop plants may facilitate their use for enhanced nutrient cycling along with amelioration of abiotic stresses to improve food production for the ever-increasing population. In this chapter, an overview is provided about the current understanding of plant-bacterial interactions that help in alleviating abiotic stress in different crop systems in the face of climate change. This review largely focuses on the importance and need of sustainable and environmentally friendly approaches using beneficial microbes for ameliorating the environmental stresses in our agricultural systems.
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Affiliation(s)
- Manisha Phour
- Department of Microbiology, CCS Haryana Agricultural University, Hisar, 125004, India
- University Institute of Biotechnology, Chandigarh University, Mohali, India
| | - Satyavir S Sindhu
- Department of Microbiology, CCS Haryana Agricultural University, Hisar, 125004, India.
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Koyro HW, Huchzermeyer B. From Soil Amendments to Controlling Autophagy: Supporting Plant Metabolism under Conditions of Water Shortage and Salinity. PLANTS 2022; 11:plants11131654. [PMID: 35807605 PMCID: PMC9269222 DOI: 10.3390/plants11131654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/03/2022] [Accepted: 06/16/2022] [Indexed: 11/30/2022]
Abstract
Crop resistance to environmental stress is a major issue. The globally increasing land degradation and desertification enhance the demand on management practices to balance both food and environmental objectives, including strategies that tighten nutrient cycles and maintain yields. Agriculture needs to provide, among other things, future additional ecosystem services, such as water quantity and quality, runoff control, soil fertility maintenance, carbon storage, climate regulation, and biodiversity. Numerous research projects have focused on the food–soil–climate nexus, and results were summarized in several reviews during the last decades. Based on this impressive piece of information, we have selected only a few aspects with the intention of studying plant–soil interactions and methods for optimization. In the short term, the use of soil amendments is currently attracting great interest to cover the current demand in agriculture. We will discuss the impact of biochar at water shortage, and plant growth promoting bacteria (PGPB) at improving nutrient supply to plants. In this review, our focus is on the interplay of both soil amendments on primary reactions of photosynthesis, plant growth conditions, and signaling during adaptation to environmental stress. Moreover, we aim at providing a general overview of how dehydration and salinity affect signaling in cells. With the use of the example of abscisic acid (ABA) and ethylene, we discuss the effects that can be observed when biochar and PGPB are used in the presence of stress. The stress response of plants is a multifactorial trait. Nevertheless, we will show that plants follow a general concept to adapt to unfavorable environmental conditions in the short and long term. However, plant species differ in the upper and lower regulatory limits of gene expression. Therefore, the presented data may help in the identification of traits for future breeding of stress-resistant crops. One target for breeding could be the removal and efficient recycling of damaged as well as needless compounds and structures. Furthermore, in this context, we will show that autophagy can be a useful goal of breeding measures, since the recycling of building blocks helps the cells to overcome a period of imbalanced substrate supply during stress adjustment.
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Affiliation(s)
- Hans-Werner Koyro
- Institute of Plantecology, Justus-Liebig-University, Heinrich-Buff-Ring 26, 35392 Giessen, Germany
- Correspondence:
| | - Bernhard Huchzermeyer
- Institute of Botany, Leibniz Universitaet Hannover, Herrenhaeuser Str. 2, 30416 Hannover, Germany; or
- AK Biotechnology, VDI-BV-Hannover, Hanomagstr. 12, 30449 Hannover, Germany
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Yahya M, Rasul M, Sarwar Y, Suleman M, Tariq M, Hussain SZ, Sajid ZI, Imran A, Amin I, Reitz T, Tarkka MT, Yasmin S. Designing Synergistic Biostimulants Formulation Containing Autochthonous Phosphate-Solubilizing Bacteria for Sustainable Wheat Production. Front Microbiol 2022; 13:889073. [PMID: 35592004 PMCID: PMC9111743 DOI: 10.3389/fmicb.2022.889073] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 04/04/2022] [Indexed: 11/13/2022] Open
Abstract
Applying phosphate-solubilizing bacteria (PSB) as biofertilizers has enormous potential for sustainable agriculture. Despite this, there is still a lack of information regarding the expression of key genes related to phosphate-solubilization (PS) and efficient formulation strategies. In this study, we investigated rock PS by Ochrobactrum sp. SSR (DSM 109610) by relating it to bacterial gene expression and searching for an efficient formulation. The quantitative PCR (qPCR) primers were designed for PS marker genes glucose dehydrogenase (gcd), pyrroloquinoline quinone biosynthesis protein C (pqqC), and phosphatase (pho). The SSR-inoculated soil supplemented with rock phosphate (RP) showed a 6-fold higher expression of pqqC and pho compared to inoculated soil without RP. Additionally, an increase in plant phosphorous (P) (2%), available soil P (4.7%), and alkaline phosphatase (6%) activity was observed in PSB-inoculated plants supplemented with RP. The root architecture improved by SSR, with higher root length, diameter, and volume. Ochrobactrum sp. SSR was further used to design bioformulations with two well-characterized PS, Enterobacter spp. DSM 109592 and DSM 109593, using the four organic amendments, biochar, compost, filter mud (FM), and humic acid. All four carrier materials maintained adequate survival and inoculum shelf life of the bacterium, as indicated by the field emission scanning electron microscopy analysis. The FM-based bioformulation was most efficacious and enhanced not only wheat grain yield (4-9%) but also seed P (9%). Moreover, FM-based bioformulation enhanced soil available P (8.5-11%) and phosphatase activity (4-5%). Positive correlations were observed between the PSB solubilization in the presence of different insoluble P sources, and soil available P, soil phosphatase activity, seed P content, and grain yield of the field grown inoculated wheat variety Faisalabad-2008, when di-ammonium phosphate fertilizer application was reduced by 20%. This study reports for the first time the marker gene expression of an inoculated PSB strain and provides a valuable groundwork to design field scale formulations that can maintain inoculum dynamics and increase its shelf life. This may constitute a step-change in the sustainable cultivation of wheat under the P-deficient soil conditions.
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Affiliation(s)
- Mahreen Yahya
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, Pakistan
| | - Maria Rasul
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, Pakistan
- Department of Environment and Energy, Sejong University, Seoul, South Korea
| | - Yasra Sarwar
- Health Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, Pakistan
| | - Muhammad Suleman
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, Pakistan
- School of Life Sciences, Institute of Microbiology, Lanzhou University, Lanzhou, China
| | - Mohsin Tariq
- Department of Bioinformatics and Biotechnology, Government College University Faisalabad (GCUF), Faisalabad, Pakistan
| | - Syed Zajif Hussain
- Department of Chemistry and Chemical Engineering, SBA School of Science and Engineering (SBA-SSE), Lahore University of Management Sciences (LUMS), Lahore, Pakistan
| | - Zahid Iqbal Sajid
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, Pakistan
| | - Asma Imran
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, Pakistan
| | - Imran Amin
- Agricultural Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, Pakistan
| | - Thomas Reitz
- Soil Ecology Department, UFZ-Helmholtz-Centre for Environmental Research, Halle, Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
| | - Mika Tapio Tarkka
- Soil Ecology Department, UFZ-Helmholtz-Centre for Environmental Research, Halle, Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
| | - Sumera Yasmin
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, Pakistan
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