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Ni H, Hou X, Tian S, Liu C, Zhang G, Peng Y, Chen L, Wang J, Chen Q, Xin D. Insights into the Early Steps of the Symbiotic Interaction between Soybean ( Glycine max) and Sinorhizobium fredii Symbiosis Using Transcriptome, Small RNA, and Degradome Sequencing. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:17084-17098. [PMID: 39013023 PMCID: PMC11299180 DOI: 10.1021/acs.jafc.4c02312] [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: 03/14/2024] [Revised: 06/26/2024] [Accepted: 06/27/2024] [Indexed: 07/18/2024]
Abstract
Symbiotic nitrogen fixation carried out by the soybean-rhizobia symbiosis increases soybean yield and reduces the amount of nitrogen fertilizer that has been applied. MicroRNAs (miRNAs) are crucial in plant growth and development, prompting an investigation into their role in the symbiotic interaction of soybean with partner rhizobia. Through integrated small RNA, transcriptome, and degradome sequencing analysis, 1215 known miRNAs, 314 of them conserved, and 187 novel miRNAs were identified, with 44 differentially expressed miRNAs in soybean roots inoculated with Sinorhizobium fredii HH103 and a ttsI mutant. The study unveiled that the known miRNA gma-MIR398a-p5 was downregulated in the presence of the ttsI mutation, while the target gene of gma-MIR398a-p5, Glyma.06G007500, associated with nitrogen metabolism, was upregulated. The results of this study offer insights for breeding high-efficiency nitrogen-fixing soybean varieties, enhancing crop yield and quality.
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Affiliation(s)
| | | | - Siyi Tian
- Key Laboratory of Soybean
Biology of the Chinese Ministry of Education, Key Laboratory of Soybean
Biology and Breeding, Genetics of Chinese Agriculture Ministry, College
of Agriculture, Northeast Agricultural University, Harbin 150036, China
| | - Chunyan Liu
- Key Laboratory of Soybean
Biology of the Chinese Ministry of Education, Key Laboratory of Soybean
Biology and Breeding, Genetics of Chinese Agriculture Ministry, College
of Agriculture, Northeast Agricultural University, Harbin 150036, China
| | - Guoqing Zhang
- Key Laboratory of Soybean
Biology of the Chinese Ministry of Education, Key Laboratory of Soybean
Biology and Breeding, Genetics of Chinese Agriculture Ministry, College
of Agriculture, Northeast Agricultural University, Harbin 150036, China
| | - Yang Peng
- Key Laboratory of Soybean
Biology of the Chinese Ministry of Education, Key Laboratory of Soybean
Biology and Breeding, Genetics of Chinese Agriculture Ministry, College
of Agriculture, Northeast Agricultural University, Harbin 150036, China
| | - Lin Chen
- Key Laboratory of Soybean
Biology of the Chinese Ministry of Education, Key Laboratory of Soybean
Biology and Breeding, Genetics of Chinese Agriculture Ministry, College
of Agriculture, Northeast Agricultural University, Harbin 150036, China
| | - Jinhui Wang
- Key Laboratory of Soybean
Biology of the Chinese Ministry of Education, Key Laboratory of Soybean
Biology and Breeding, Genetics of Chinese Agriculture Ministry, College
of Agriculture, Northeast Agricultural University, Harbin 150036, China
| | - Qingshan Chen
- Key Laboratory of Soybean
Biology of the Chinese Ministry of Education, Key Laboratory of Soybean
Biology and Breeding, Genetics of Chinese Agriculture Ministry, College
of Agriculture, Northeast Agricultural University, Harbin 150036, China
| | - Dawei Xin
- Key Laboratory of Soybean
Biology of the Chinese Ministry of Education, Key Laboratory of Soybean
Biology and Breeding, Genetics of Chinese Agriculture Ministry, College
of Agriculture, Northeast Agricultural University, Harbin 150036, China
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Jarecki W. Soybean Response to Seed Inoculation or Coating with Bradyrhizobium japonicum and Foliar Fertilization with Molybdenum. PLANTS (BASEL, SWITZERLAND) 2023; 12:2431. [PMID: 37446991 DOI: 10.3390/plants12132431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/12/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023]
Abstract
Soybean is one of the most important legumes in the world, and its advantages and disadvantages are well known. As a result of symbiosis with the bacterium Bradyrhizobium japonicum, soybean can assimilate nitrogen from the air and is therefore not fertilized with this element, or if it is, only at small doses. In soybean agriculture practice, an important treatment is the inoculation of seeds with symbiotic bacteria and optimal fertilization with selected nutrients. Therefore, a three-year (2019-2021) field experiment was carried out to investigate the effects of soybean in the field to a seed Rhizobium inoculation or coating and molybdenum foliar fertilization. There were no significant interactions between the tested treatments over the years. It was demonstrated that the best variant was seed inoculation before sowing in combination with foliar molybdenum application. As a result of this treatment, a significant increase in nodulation, soil plant analysis development (SPAD) index, leaf area index (LAI) and seed yield (by 0.61 t·ha-1) was obtained compared to the control. In addition, the content of total protein in the seeds increased, while the content of crude fat decreased, which significantly modified the yield of both components. Sowing coated seeds in the Fix Fertig technology was less effective compared to inoculation, but it was significantly better than that in the control. Coating seeds with B. japonicum, in combination with foliar fertilization with molybdenum, could be recommended for agricultural practice, which was confirmed by economic calculations. Future experiments will assess the soybean's response to seed inoculation or coating and fertilization with other micronutrients.
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Affiliation(s)
- Wacław Jarecki
- Department of Crop Production, University of Rzeszów, Zelwerowicza 4 St., 35-601 Rzeszów, Poland
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3
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Liu S, Mi J, Song K, Qi H, Zhang L. Engineering synthetic microbial consortium for cadaverine biosynthesis from glycerol. Biotechnol Lett 2022; 44:1389-1400. [PMID: 36203106 DOI: 10.1007/s10529-022-03306-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 08/12/2022] [Accepted: 09/23/2022] [Indexed: 01/11/2023]
Abstract
OBJECTIVES 1,5-pentanediamine (cadaverine) is a C5 platform chemical, also an important raw material for bio-polyamide PA5X. With increasing concerns about the depletion of fossil resources and global environmental protection, cadaverine bio-production has attracted more attentions. RESULTS Here, a microbial consortium consisting of Corynebacterium glutamicum cgl-FDK and Escherichia coli BL-ABST-Spy was constructed to de novo synthesize cadaverine utilizing glycerol as the sole carbon resource. The glycerol utilization pathway was initially constructed in C. glutamicum cgl-FDK to produce lysine from glycerol. Then, the pyridoxal 5'-phosphate (PLP) biosynthesis pathway and SpyTag/SpyCatcher protein-ligation system for lysine decarboxylase (CadA) and cadaverine-lysine antiporter protein (CadB) were introduced into E. coli BL-ABST-Spy to synthesize cadaverine from lysine. Furthermore, the fermentation conditions of microbial consortium were optimized and the cadaverine production reached 9.3 g/L with glycerol as the sole carbon source. CONCLUSIONS This work provides a promising strategy for efficiently producing cadaverine from glycerol with an artificial microbial consortium.
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Affiliation(s)
- Simin Liu
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, No.135, Yaguan Road, Tianjin, 300072, People's Republic of China.,School of Chemical Engineering and Technology, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), Tianjin University, No.135, Yaguan Road, Tianjin, 300350, People's Republic of China
| | - Jiali Mi
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, No.135, Yaguan Road, Tianjin, 300072, People's Republic of China.,School of Chemical Engineering and Technology, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), Tianjin University, No.135, Yaguan Road, Tianjin, 300350, People's Republic of China
| | - Kejing Song
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Haishan Qi
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, No.135, Yaguan Road, Tianjin, 300072, People's Republic of China. .,School of Chemical Engineering and Technology, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), Tianjin University, No.135, Yaguan Road, Tianjin, 300350, People's Republic of China.
| | - Lei Zhang
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, No.135, Yaguan Road, Tianjin, 300072, People's Republic of China.,School of Chemical Engineering and Technology, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), Tianjin University, No.135, Yaguan Road, Tianjin, 300350, People's Republic of China
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4
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Jabborova D, Kannepalli A, Davranov K, Narimanov A, Enakiev Y, Syed A, Elgorban AM, Bahkali AH, Wirth S, Sayyed RZ, Gafur A. Co-inoculation of rhizobacteria promotes growth, yield, and nutrient contents in soybean and improves soil enzymes and nutrients under drought conditions. Sci Rep 2021; 11:22081. [PMID: 34764331 PMCID: PMC8586231 DOI: 10.1038/s41598-021-01337-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 10/11/2021] [Indexed: 11/17/2022] Open
Abstract
Drought stress is the major abiotic factor limiting crop production. Co-inoculating crops with nitrogen fixing bacteria and plant growth-promoting rhizobacteria (PGPR) improves plant growth and increases drought tolerance in arid or semiarid areas. Soybean is a major source of high-quality protein and oil for humans. It is susceptible to drought stress conditions. The co-inoculation of drought-stressed soybean with nodulating rhizobia and root-colonizing, PGPR improves the root and the shoot growth, formation of nodules, and nitrogen fixation capacity in soybean. The present study was aimed to observe if the co-inoculation of soybean (Glycine max L. (Merr.) nodulating with Bradyrhizobium japonicum USDA110 and PGPR Pseudomonas putida NUU8 can enhance drought tolerance, nodulation, plant growth, and nutrient uptake under drought conditions. The results of the study showed that co-inoculation with B. japonicum USDA110 and P. putida NUU8 gave more benefits in nodulation and growth of soybean compared to plants inoculated with B. japonicum USDA110 alone and uninoculated control. Under drought conditions, co-inoculation of B. japonicum USDA 110 and P. putida NUU8 significantly enhanced the root length by 56%, shoot length by 33%, root dry weight by 47%, shoot dry weight by 48%, and nodule number 17% compared to the control under drought-stressed. Co-inoculation with B. japonicum, USDA 110 and P. putida NUU8 significantly enhanced plant and soil nutrients and soil enzymes compared to control under normal and drought stress conditions. The synergistic use of B. japonicum USDA110 and P. putida NUU8 improves plant growth and nodulation of soybean under drought stress conditions. The results suggested that these strains could be used to formulate a consortium of biofertilizers for sustainable production of soybean under drought-stressed field conditions.
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Affiliation(s)
- Dilfuza Jabborova
- Institute of Genetics and Plant Experimental Biology, Uzbekistan Academy of Sciences, Tashkent Region, 111208, Kibray, Uzbekistan.
- Division of Microbiology, ICAR-Indian Agricultural Research Institute, Pusa, New Delhi, 110012, India.
- Leibniz Centre for Agricultural Landscape Research (ZALF), 15374, Müncheberg, Germany.
| | - Annapurna Kannepalli
- Division of Microbiology, ICAR-Indian Agricultural Research Institute, Pusa, New Delhi, 110012, India
| | - Kakhramon Davranov
- Institute of Microbiology, Academy of Sciences of Uzbekistan, 100128, Tashkent, Uzbekistan
| | - Abdujalil Narimanov
- Institute of Genetics and Plant Experimental Biology, Uzbekistan Academy of Sciences, Tashkent Region, 111208, Kibray, Uzbekistan
| | - Yuriy Enakiev
- Agro-Technology and Plant Protection. 7, Nikola Pushkarov Institute of Soil Science, Shosse Bankya str., 1331, Sofia, Bulgaria
| | - Asad Syed
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Abdallah M Elgorban
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Ali H Bahkali
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Stephan Wirth
- Leibniz Centre for Agricultural Landscape Research (ZALF), 15374, Müncheberg, Germany
| | - R Z Sayyed
- Department of Microbiology, PSGVP Mandal's, Arts, Science & Commerce College, Shahada, Maharashtra, 425409, India.
| | - Abdul Gafur
- Sinarmas Forestry Corporate Research and Development, Perawang, 28772, Indonesia.
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Chiluwal A, Haramoto ER, Hildebrand D, Naeve S, Poffenbarger H, Purcell LC, Salmeron M. Late-Season Nitrogen Applications Increase Soybean Yield and Seed Protein Concentration. FRONTIERS IN PLANT SCIENCE 2021; 12:715940. [PMID: 34691097 PMCID: PMC8527004 DOI: 10.3389/fpls.2021.715940] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 08/25/2021] [Indexed: 06/13/2023]
Abstract
Low seed and meal protein concentration in modern high-yielding soybean [Glycine max L. (Merr.)] cultivars is a major concern but there is limited information on effective cultural practices to address this issue. In the objective of dealing with this problem, this study conducted field experiments in 2019 and 2020 to evaluate the response of seed and meal protein concentrations to the interactive effects of late-season inputs [control, a liquid Bradyrhizobium japonicum inoculation at R3, and 202 kg ha-1 nitrogen (N) fertilizer applied after R5], previous cover crop (fallow or cereal cover crop with residue removed), and short- and full-season maturity group cultivars at three U.S. locations (Fayetteville, Arkansas; Lexington, Kentucky; and St. Paul, Minnesota). The results showed that cover crops had a negative effect on yield in two out of six site-years and decreased seed protein concentration by 8.2 mg g-1 on average in Minnesota. Inoculant applications at R3 did not affect seed protein concentration or yield. The applications of N fertilizer after R5 increased seed protein concentration by 6 to 15 mg g-1, and increased yield in Arkansas by 13% and in Minnesota by 11% relative to the unfertilized control. This study showed that late-season N applications can be an effective cultural practice to increase soybean meal protein concentration in modern high-yielding cultivars above the minimum threshold required by the industry. New research is necessary to investigate sustainable management practices that increase N availability to soybeans late in the season.
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Affiliation(s)
- Anuj Chiluwal
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY, United States
| | - Erin R. Haramoto
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY, United States
| | - David Hildebrand
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY, United States
| | - Seth Naeve
- Department of Agronomy and Plant Genetics, University of Minnesota, Saint Paul, MN, United States
| | - Hanna Poffenbarger
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY, United States
| | - Larry C. Purcell
- Department of Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, AR, United States
| | - Montserrat Salmeron
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY, United States
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Cezar RM, Vezzani FM, Kaschuk G, Balsanelli E, de Souza EM, Vargas LK, Molin R. Crop rotation reduces the frequency of anaerobic soil bacteria in Red Latosol of Brazil. Braz J Microbiol 2021; 52:2169-2177. [PMID: 34319574 DOI: 10.1007/s42770-021-00578-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 07/11/2021] [Indexed: 10/20/2022] Open
Abstract
Crop diversity affects the processes of soil physical structuring and most likely provokes changes in the frequencies of soil microbial communities. The study was conducted for soil prokaryotic diversity sequencing 16S rDNA genes from a 25-year no-tillage experiment comprised of two crop systems: crop succession (Triticum aestivum-Glycine max) and rotation (Vicia sativa-Zea mays-Avena sativa-Glycine max-Triticum aestivum-Glycine max). The hypothesis was that a crop system with higher crop diversification (rotation) would affect the frequencies of prokaryotic taxa against a less diverse crop system (succession) altering the major soil functions guided by bacterial diversity. Soils in both crop systems were dominated by Proteobacteria (31%), Acidobacteria (23%), Actinobacteria (10%), and Gemmatimonadetes (7.2%), among other common copiotrophic soil bacteria. Crop systems did not affect the richness and diversity indexes of soil bacteria and soil archaea. However, the crop rotation system reduced only the frequencies of anaerobic metabolism bacteria Chloroacidobacteria, Holophagae, Spirochaetes, Euryarchaeota, and Crenarchaeota. It can be concluded that crop succession, a system that is poorer in root diversity over time, may have conditioned the soil to lower oxygen diffusion and built up ecological niches that suitable for anaerobic bacteria tolerating lower levels of oxygen. On the other hand, it appeared that crop rotation has restructured the soil over the years while enabling copiotrophic aerobic bacteria to dominate the soil ecosystem. The changes prompted by crop succession have implications for efficient soil organic matter decomposition, reduced greenhouse gas emissions, higher root activity, and overall soil productivity, which compromise to agriculture sustainability.
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Affiliation(s)
- Raul Matias Cezar
- Post-Graduate in Soil Science, Federal University of Paraná, Rua Dos Funcionários, 1540, Curitiba, PR, CEP 80035-050, Brazil
| | - Fabiane Machado Vezzani
- Post-Graduate in Soil Science, Federal University of Paraná, Rua Dos Funcionários, 1540, Curitiba, PR, CEP 80035-050, Brazil
| | - Glaciela Kaschuk
- Post-Graduate in Soil Science, Federal University of Paraná, Rua Dos Funcionários, 1540, Curitiba, PR, CEP 80035-050, Brazil.
| | - Eduardo Balsanelli
- Department of Biochemistry, Federal University of Paraná, Rua Francisco H. Dos Santos S/N, Curitiba, PR, CEP 81531-990, Brazil
| | - Emanuel Maltempi de Souza
- Department of Biochemistry, Federal University of Paraná, Rua Francisco H. Dos Santos S/N, Curitiba, PR, CEP 81531-990, Brazil
| | - Luciano Kayser Vargas
- Department of Agricultural Diagnosis and Research, Secretary of Agriculture and Livestock of the State of Rio Grande Do Sul, Rua Gonçalves Dias, 570, Porto Alegre, RS, CEP 90130-060, Brazil
| | - Rudimar Molin
- ABC Foundation, Rod. PR 151 km 288, Caixa-postal: 1003, Castro, PR, CEP 84165-700, Brazil
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de Borja Reis AF, Moro Rosso L, Purcell LC, Naeve S, Casteel SN, Kovács P, Archontoulis S, Davidson D, Ciampitti IA. Environmental Factors Associated With Nitrogen Fixation Prediction in Soybean. FRONTIERS IN PLANT SCIENCE 2021; 12:675410. [PMID: 34211487 PMCID: PMC8239404 DOI: 10.3389/fpls.2021.675410] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 05/06/2021] [Indexed: 05/10/2023]
Abstract
Biological nitrogen (N)-fixation is the most important source of N for soybean [Glycine max (L.) Merr.], with considerable implications for sustainable intensification. Therefore, this study aimed to investigate the relevance of environmental factors driving N-fixation and to develop predictive models defining the role of N-fixation for improved productivity and increased seed protein concentration. Using the elastic net regularization of multiple linear regression, we analyzed 40 environmental factors related to weather, soil, and crop management. We selected the most important factors associated with the relative abundance of ureides (RAU) as an indicator of the fraction of N derived from N-fixation. The most relevant RAU predictors were N fertilization, atmospheric vapor pressure deficit (VPD) and precipitation during early reproductive growth (R1-R4 stages), sowing date, drought stress during seed filling (R5-R6), soil cation exchange capacity (CEC), and soil sulfate concentration before sowing. Soybean N-fixation ranged from 60 to 98% across locations and years (n = 95). The predictive model for RAU showed relative mean square error (RRMSE) of 4.5% and an R2 value of 0.69, estimated via cross-validation. In addition, we built similar predictive models of yield and seed protein to assess the association of RAU and these plant traits. The variable RAU was selected as a covariable for the models predicting yield and seed protein, but with a small magnitude relative to the sowing date for yield or soil sulfate for protein. The early-reproductive period VPD affected all independent variables, namely RAU, yield, and seed protein. The elastic net algorithm successfully depicted some otherwise challenging empirical relationships to assess with bivariate associations in observational data. This approach provides inference about environmental variables while predicting N-fixation. The outcomes of this study will provide a foundation for improving the understanding of N-fixation within the context of sustainable intensification of soybean production.
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Affiliation(s)
- André Froes de Borja Reis
- Department of Agronomy, Kansas State University, Manhattan, KS, United States
- *Correspondence: André Froes de Borja Reis, ; Ignacio A. Ciampitti,
| | - Luiz Moro Rosso
- Department of Agronomy, Kansas State University, Manhattan, KS, United States
| | - Larry C. Purcell
- Department of Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, AR, United States
| | - Seth Naeve
- Department of Agronomy and Plant Genetics, University of Minnesota, Saint Paul, MN, United States
| | - Shaun N. Casteel
- Department of Agronomy, Purdue University, West Lafayette, IN, United States
| | - Péter Kovács
- Department of Agronomy, Horticulture, and Plant Science, South Dakota State University, Brookings, SD, United States
| | | | - Dan Davidson
- Davidson Agronomics and Consulting, Omaha, NE, United States
| | - Ignacio A. Ciampitti
- Department of Agronomy, Kansas State University, Manhattan, KS, United States
- *Correspondence: André Froes de Borja Reis, ; Ignacio A. Ciampitti,
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Ciampitti IA, de Borja Reis AF, Córdova SC, Castellano MJ, Archontoulis SV, Correndo AA, Antunes De Almeida LF, Moro Rosso LH. Revisiting Biological Nitrogen Fixation Dynamics in Soybeans. FRONTIERS IN PLANT SCIENCE 2021; 12:727021. [PMID: 34691106 PMCID: PMC8529188 DOI: 10.3389/fpls.2021.727021] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 08/24/2021] [Indexed: 05/06/2023]
Abstract
Biological nitrogen (N) fixation is the most relevant process in soybeans (Glycine max L.) to satisfy plant N demand and sustain seed protein formation. Past studies describing N fixation for field-grown soybeans mainly focused on a single point time measurement (mainly toward the end of the season) and on the partial N budget (fixed-N minus seed N removal), overlooking the seasonal pattern of this process. Therefore, this study synthesized field datasets involving multiple temporal measurements during the crop growing season to characterize N fixation dynamics using both fixed-N (kg ha-1) and N derived from the atmosphere [Ndfa (%)] to define: (i) time to the maximum rate of N fixation (β2), (ii) time to the maximum Ndfa (α2), and (iii) the cumulative fixed-N. The main outcomes of this study are that (1) the maximum rate of N fixation was around the beginning of pod formation (R3 stage), (2) time to the maximum Ndfa (%) was after full pod formation (R4), and (3) cumulative fixation was positively associated with the seasonal vapor-pressure deficit (VPD) and growth cycle length but negatively associated with soil clay content, and (4) time to the maximum N fixation rate (β2) was positively impacted by season length and negatively impacted by high temperatures during vegetative growth (but positively for VPD, during the same period). Overall, variation in the timing of the maximum rate of N fixation occurred within a much narrower range of growth stages (R3) than the timing of the maximum Ndfa (%), which varied broadly from flowering (R1) to seed filing (R5-R6) depending on the evaluated studies. From a phenotyping standpoint, N fixation determinations after the R4 growth stage would most likely permit capturing both maximum fixed-N rate and maximum Ndfa (%). Further investigations that more closely screen the interplay between N fixation with soil-plant-environment factors should be pursued.
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Affiliation(s)
- Ignacio A. Ciampitti
- Department of Agronomy, Kansas State University, Manhattan, KS, United States
- *Correspondence: Ignacio A. Ciampitti
| | | | - S. Carolina Córdova
- Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, MI, United States
- W. K. Kellogg Biological Station, Michigan State University, Hickory Corners, MI, United States
- Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, MI, United States
| | | | | | - Adrian A. Correndo
- Department of Agronomy, Kansas State University, Manhattan, KS, United States
| | | | - Luiz H. Moro Rosso
- Department of Agronomy, Kansas State University, Manhattan, KS, United States
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9
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Cafaro La Menza N, Monzon JP, Lindquist JL, Arkebauer TJ, Knops JMH, Unkovich M, Specht JE, Grassini P. Insufficient nitrogen supply from symbiotic fixation reduces seasonal crop growth and nitrogen mobilization to seed in highly productive soybean crops. PLANT, CELL & ENVIRONMENT 2020; 43:1958-1972. [PMID: 32430922 PMCID: PMC7496333 DOI: 10.1111/pce.13804] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/13/2020] [Accepted: 05/13/2020] [Indexed: 05/27/2023]
Abstract
Nitrogen (N) supply can limit the yields of soybean [Glycine max (L.) Merr.] in highly productive environments. To explore the physiological mechanisms underlying this limitation, seasonal changes in N dynamics, aboveground dry matter (ADM) accumulation, leaf area index (LAI) and fraction of absorbed radiation (fAPAR) were compared in crops relying only on biological N2 fixation and available soil N (zero-N treatment) versus crops receiving N fertilizer (full-N treatment). Experiments were conducted in seven high-yield environments without water limitation, where crops received optimal management. In the zero-N treatment, biological N2 fixation was not sufficient to meet the N demand of the growing crop from early in the season up to beginning of seed filling. As a result, crop LAI, growth, N accumulation, radiation-use efficiency and fAPAR were consistently higher in the full-N than in the zero-N treatment, leading to improved seed set and yield. Similarly, plants in the full-N treatment had heavier seeds with higher N concentration because of greater N mobilization from vegetative organs to seeds. Future yield gains in high-yield soybean production systems will require an increase in biological N2 fixation, greater supply of N from soil or fertilizer, or alleviation of the trade-off between these two sources of N in order to meet the plant demand.
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Affiliation(s)
| | - Juan Pablo Monzon
- Department of Agronomy and HorticultureUniversity of Nebraska–LincolnLincolnNebraskaUSA
- National Scientific and Technical Research Council (CONICET)BalcarceArgentina
| | - John L. Lindquist
- Department of Agronomy and HorticultureUniversity of Nebraska–LincolnLincolnNebraskaUSA
| | - Timothy J. Arkebauer
- Department of Agronomy and HorticultureUniversity of Nebraska–LincolnLincolnNebraskaUSA
| | - Johannes M. H. Knops
- School of Biological ScienceUniversity of Nebraska–LincolnLincolnNebraskaUSA
- Department of Health and Environmental ScienceXi'an Jiaotong Liverpool UniversitySuzhouChina
| | - Murray Unkovich
- School of Agriculture, Food and WineThe University of AdelaideGlen OsmondSouth AustraliaAustralia
| | - James E. Specht
- Department of Agronomy and HorticultureUniversity of Nebraska–LincolnLincolnNebraskaUSA
| | - Patricio Grassini
- Department of Agronomy and HorticultureUniversity of Nebraska–LincolnLincolnNebraskaUSA
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