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Asrat A, Sitotaw B, Dawoud TM, Nafidi HA, Bourhia M, Mekuriaw A, Wondmie GF. Effect of glyphosate on the growth and survival of rhizobia isolated from root nodules of grass pea (Lathyrus sativus L.). Sci Rep 2023; 13:21535. [PMID: 38057446 PMCID: PMC10700605 DOI: 10.1038/s41598-023-48424-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 11/27/2023] [Indexed: 12/08/2023] Open
Abstract
Grass pea (L. sativus L.) is a widely cultivated crop worldwide, forming a symbiotic relationship with nitrogen-fixing rhizobia. Glyphosate is commonly used by farmers for weed control during agricultural processes. However, the application of this chemical herbicide negatively impacts soil fertility by affecting the nitrogen-fixing rhizobia. This study aimed to assess the effects of glyphosate on rhizobia isolated from healthy and robust Grass pea plants. Specifically, Grass pea plants exhibiting vigorous growth and a healthy appearance were intentionally selected to isolate rhizobia from their root nodules. The isolated rhizobia were then characterized based on their morphological features, biochemical properties, and resistance to abiotic traits. Rhizobial isolates from grass peas exhibited Gram-negative, rod-shaped morphology, milky colony color, and variable colony sizes. Additionally, the majority displayed smooth colony surfaces on yeast extract mannitol agar medium. Based on morphological and biochemical characteristics, the isolates could be grouped under the genus Rhizobium. Optimum growth conditions for these isolates were observed at temperatures between 28 and 38 °C, pH levels ranging from 5 to 8, and salt (NaCl) concentrations of 0.5% and 1%. At a concentration of 20 mL L-1, glyphosate inhibited 5.52-47% of the Rhizobium population. The inhibition percentage increased to 17.1-53.38% at a concentration of 40 mL L-1. However, when exposed to a higher concentration (60 mL/L) of glyphosate, 87% of the isolates were inhibited. The number of colonies after glyphosate exposure was significantly dependent on concentration, and there were notable differences between treatments with varying glyphosate concentrations (p < 0.05). Glyphosate negatively impacted the survival of grass pea rhizobia, leading to a reduction in the Rhizobium population (CFU). However, the effect varied between Rhizobium isolated from grass pea root nodules.
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Affiliation(s)
- Atrsaw Asrat
- Department of Biology, College of Science, Bahir Dar University, P.O. Box 79, Bahir Dar, Ethiopia
| | - Baye Sitotaw
- Department of Biology, College of Science, Bahir Dar University, P.O. Box 79, Bahir Dar, Ethiopia
| | - Turki M Dawoud
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Saudi Arabia
| | - Hiba-Allah Nafidi
- Department of Food Science, Faculty of Agricultural and Food Science, Laval University, 2325, Quebec City, QC, H1V OA6, Canada
| | - Mohammed Bourhia
- Department of Chemistry and Biochemistry, Faculty of Medicine and Pharmacy, Ibn Zohr University, 70000, Laayoune, Morocco
| | - Animut Mekuriaw
- Department of Biology, College of Science, Bahir Dar University, P.O. Box 79, Bahir Dar, Ethiopia
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Vlaminck L, Vanden Berghen B, Vranken L, Goormachtig S. It takes three to tango: citizen, fundamental and applied science. Trends Plant Sci 2023; 28:491-494. [PMID: 36907695 DOI: 10.1016/j.tplants.2023.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 02/21/2023] [Accepted: 02/21/2023] [Indexed: 05/22/2023]
Abstract
Citizen science is an undervalued tool in a scientist's toolbox with the potential to go beyond primary data collection to strengthen fundamental and applied science. We call for the integration of these three disciplines to make agriculture sustainable and adaptive to climate change, with North-Western European soybean cultivation as showcase.
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Affiliation(s)
- Lena Vlaminck
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium; Center for Plant Systems Biology, VIB, 9052 Ghent, Belgium
| | - Birgit Vanden Berghen
- Division of Bio-economics, Department of Earth and Environmental Sciences, KU Leuven, 3000 Leuven, Belgium
| | - Liesbet Vranken
- Division of Bio-economics, Department of Earth and Environmental Sciences, KU Leuven, 3000 Leuven, Belgium
| | - Sofie Goormachtig
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium; Center for Plant Systems Biology, VIB, 9052 Ghent, Belgium.
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Mortuza MF, Djedidi S, Ito T, Agake SI, Sekimoto H, Yokoyama T, Okazaki S, Ohkama-Ohtsu N. Genetic and Physiological Characterization of Soybean-Nodule-Derived Isolates from Bangladeshi Soils Revealed Diverse Array of Bacteria with Potential Bradyrhizobia for Biofertilizers. Microorganisms 2022; 10:2282. [PMID: 36422352 PMCID: PMC9698105 DOI: 10.3390/microorganisms10112282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/05/2022] [Accepted: 11/15/2022] [Indexed: 12/13/2023] Open
Abstract
Genetic and physiological characterization of bacteria derived from nodules of leguminous plants in the exploration of biofertilizer is of paramount importance from agricultural and environmental perspectives. Phylogenetic analysis of the 16S rRNA gene of 84 isolates derived from Bangladeshi soils revealed an unpredictably diverse array of nodule-forming and endosymbiotic bacteria-mostly belonging to the genus Bradyrhizobium. A sequence analysis of the symbiotic genes (nifH and nodD1) revealed similarities with the 16S rRNA gene tree, with few discrepancies. A phylogenetic analysis of the partial rrn operon (16S-ITS-23S) and multi-locus sequence analysis of atpD, glnII, and gyrB identified that the Bradyrhizobium isolates belonged to Bradyrhizobium diazoefficiens, Bradyrhizobium elkanii, Bradyrhizobium liaoningense and Bradyrhizobium yuanmingense species. In the pot experiment, several isolates showed better activity than B. diazoefficiens USDA110, and the Bho-P2-B2-S1-51 isolate of B. liaoningense showed significantly higher acetylene reduction activity in both Glycine max cv. Enrei and Binasoybean-3 varieties and biomass production increased by 9% in the Binasoybean-3 variety. Tha-P2-B1-S1-68 isolate of B. diazoefficiens significantly enhanced shoot length and induced 10% biomass production in Binasoybean-3. These isolates grew at 1-4% NaCl concentration and pH 4.5-10 and survived at 45 °C, making the isolates potential candidates for eco-friendly soybean biofertilizers in salty and tropical regions.
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Affiliation(s)
- Md Firoz Mortuza
- United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology (TUAT), Saiwai-cho 3-5-8, Fuchu-shi, Tokyo 183-8509, Japan
- Institute of Food and Radiation Biology, Atomic Energy Research Establishment, Bangladesh Atomic Energy Commission, Ganakbari, Savar, Dhaka 1207, Bangladesh
| | - Salem Djedidi
- Faculty of Agriculture, Tokyo University of Agriculture and Technology (TUAT), Saiwai-cho 3-5-8, Fuchu-shi, Tokyo 183-8509, Japan
| | - Takehiro Ito
- United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology (TUAT), Saiwai-cho 3-5-8, Fuchu-shi, Tokyo 183-8509, Japan
| | - Shin-ichiro Agake
- Institute of Global Innovation Research, Tokyo University of Agriculture and Technology (TUAT), Harumi-cho 3-8-1, Fuchu-shi, Tokyo 183-8509, Japan
| | - Hitoshi Sekimoto
- Faculty of Agriculture, Utsunomiya University, Utsunomiya-shi, Tochigi 321-8505, Japan
| | - Tadashi Yokoyama
- Institute of Agriculture, Tokyo University of Agriculture and Technology (TUAT), Saiwai-cho 3-5-8, Fuchu-shi, Tokyo 183-8509, Japan
- Faculty of Food and Agricultural Sciences, Fukushima University, Kanayagawa 1, Fukushima-shi, Fukushima 960-1248, Japan
| | - Shin Okazaki
- Institute of Agriculture, Tokyo University of Agriculture and Technology (TUAT), Saiwai-cho 3-5-8, Fuchu-shi, Tokyo 183-8509, Japan
| | - Naoko Ohkama-Ohtsu
- Institute of Global Innovation Research, Tokyo University of Agriculture and Technology (TUAT), Harumi-cho 3-8-1, Fuchu-shi, Tokyo 183-8509, Japan
- Institute of Agriculture, Tokyo University of Agriculture and Technology (TUAT), Saiwai-cho 3-5-8, Fuchu-shi, Tokyo 183-8509, Japan
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Van Dingenen J, Garcia Mendez S, Beirinckx S, Vlaminck L, De Keyser A, Stuer N, Verschaete S, Clarysse A, Pannecoucque J, Rombauts S, Roldan-Ruiz I, Willems A, Goormachtig S. Flemish soils contain rhizobia partners for Northwestern Europe-adapted soybean cultivars. Environ Microbiol 2022; 24:3334-3354. [PMID: 35212122 DOI: 10.1111/1462-2920.15941] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 02/09/2022] [Accepted: 02/12/2022] [Indexed: 11/28/2022]
Abstract
In Europe, soybean (Glycine max) used for food and feed has to be imported, causing negative socioeconomic and environmental impacts. To increase the local production, breeding generated varieties that grow in colder climates, but the yield using the commercial inoculants is not satisfactory in Belgium because of variable nodulation efficiencies. To look for indigenous nodulating strains possibly adapted to the local environment, we initiated a nodulation trap by growing early-maturing cultivars under natural and greenhouse conditions in 107 garden soils in Flanders. Nodules occurred in 18 and 21 soils in the garden and greenhouse experiments respectively. By combining 16S rRNA PCR on single isolates with HiSeq 16S metabarcoding on nodules, we found a large bacterial richness and diversity from different soils. Furthermore, using Oxford Nanopore Technologies sequencing of DNA from one nodule, we retrieved the entire genome of a Bradyrhizobium species, not previously isolated, but profusely present in that nodule. These data highlight the need of combining diverse identification techniques to capture the true nodule rhizobial community. Eight selected rhizobial isolates were subdivided by whole-genome analysis in three genera containing six genetically distinct species that, except for two, aligned with known type strains and were all able to nodulate soybean in the laboratory.
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Affiliation(s)
- Judith Van Dingenen
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, 9052, Belgium
- Center for Plant Systems Biology, VIB, Ghent, 9052, Belgium
| | - Sonia Garcia Mendez
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, 9052, Belgium
- Center for Plant Systems Biology, VIB, Ghent, 9052, Belgium
- Department of Biochemistry and Microbiology, Faculty of Sciences, Ghent University, Ghent, 9000, Belgium
| | - Stien Beirinckx
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, 9052, Belgium
- Center for Plant Systems Biology, VIB, Ghent, 9052, Belgium
| | - Lena Vlaminck
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, 9052, Belgium
- Center for Plant Systems Biology, VIB, Ghent, 9052, Belgium
| | - Annick De Keyser
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, 9052, Belgium
- Center for Plant Systems Biology, VIB, Ghent, 9052, Belgium
| | - Naomi Stuer
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, 9052, Belgium
- Center for Plant Systems Biology, VIB, Ghent, 9052, Belgium
| | - Severine Verschaete
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, 9052, Belgium
- Center for Plant Systems Biology, VIB, Ghent, 9052, Belgium
| | - Alexander Clarysse
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, 9052, Belgium
- Center for Plant Systems Biology, VIB, Ghent, 9052, Belgium
| | - Joke Pannecoucque
- Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Plant Sciences Unit, Merelbeke, 9820, Belgium
| | - Stephane Rombauts
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, 9052, Belgium
- Center for Plant Systems Biology, VIB, Ghent, 9052, Belgium
| | - Isabel Roldan-Ruiz
- Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Plant Sciences Unit, Merelbeke, 9820, Belgium
| | - Anne Willems
- Department of Biochemistry and Microbiology, Faculty of Sciences, Ghent University, Ghent, 9000, Belgium
| | - Sofie Goormachtig
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, 9052, Belgium
- Center for Plant Systems Biology, VIB, Ghent, 9052, Belgium
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Miljaković D, Marinković J, Tamindžić G, Đorđević V, Tintor B, Milošević D, Ignjatov M, Nikolić Z. Bio-Priming of Soybean with Bradyrhizobium japonicum and Bacillus megaterium: Strategy to Improve Seed Germination and the Initial Seedling Growth. Plants (Basel) 2022; 11:1927. [PMID: 35893631 PMCID: PMC9332681 DOI: 10.3390/plants11151927] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 07/14/2022] [Accepted: 07/15/2022] [Indexed: 06/15/2023]
Abstract
Bio-priming is a new technique of seed treatment that improves seed germination, vigor, crop growth and yield. The objective of this study was to evaluate the effectiveness of Bradyrhizobium japonicum (commercial strains) and Bacillus megaterium (newly isolated strains) as a single inoculant and co-inoculant during seed bio-priming to improve seed germination and initial seedling growth of two soybean cultivars. The treated seeds were subjected to germination test (GT), cold test (CT) and accelerated aging test (AAT). B. megaterium significantly improved all parameters in GT and CT; final germination, shoot length, root length, root dry weight, and seedling vigor index in AAT, as compared to control. In addition, co-inoculation significantly increased all parameters except shoot dry weight in GT; all parameters in CT; germination energy, shoot length, root length, and seedling vigor index in AAT, in comparison to the control. Moreover, Br. japonicum significantly improved the germination energy, shoot length, shoot dry weight, root dry weight, and seedling vigor index in GT; all parameters in CT; shoot length, root length, and seedling vigor index in AAT, compared with non-primed seeds. Thus, B. megaterium strains could be used in soybean bio-priming as a potential single inoculant and co-inoculant, following proper field evaluation.
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Affiliation(s)
- Dragana Miljaković
- Department of Microbiological Preparations, Institute of Field and Vegetable Crops, 21000 Novi Sad, Serbia; (J.M.); (B.T.)
| | - Jelena Marinković
- Department of Microbiological Preparations, Institute of Field and Vegetable Crops, 21000 Novi Sad, Serbia; (J.M.); (B.T.)
| | - Gordana Tamindžić
- Laboratory for Seed Testing, Institute of Field and Vegetable Crops, 21000 Novi Sad, Serbia; (G.T.); (D.M.); (Z.N.)
| | - Vuk Đorđević
- Department of Legumes, Institute of Field and Vegetable Crops, 21000 Novi Sad, Serbia;
| | - Branislava Tintor
- Department of Microbiological Preparations, Institute of Field and Vegetable Crops, 21000 Novi Sad, Serbia; (J.M.); (B.T.)
| | - Dragana Milošević
- Laboratory for Seed Testing, Institute of Field and Vegetable Crops, 21000 Novi Sad, Serbia; (G.T.); (D.M.); (Z.N.)
| | - Maja Ignjatov
- Department of Vegetable and Alternative Crops, Institute of Field and Vegetable Crops, 21000 Novi Sad, Serbia;
| | - Zorica Nikolić
- Laboratory for Seed Testing, Institute of Field and Vegetable Crops, 21000 Novi Sad, Serbia; (G.T.); (D.M.); (Z.N.)
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Wekesa C, Jalloh AA, Muoma JO, Korir H, Omenge KM, Maingi JM, Furch ACU, Oelmüller R. Distribution, Characterization and the Commercialization of Elite Rhizobia Strains in Africa. Int J Mol Sci 2022; 23:ijms23126599. [PMID: 35743041 PMCID: PMC9223902 DOI: 10.3390/ijms23126599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/07/2022] [Accepted: 06/09/2022] [Indexed: 02/04/2023] Open
Abstract
Grain legumes play a significant role in smallholder farming systems in Africa because of their contribution to nutrition and income security and their role in fixing nitrogen. Biological Nitrogen Fixation (BNF) serves a critical role in improving soil fertility for legumes. Although much research has been conducted on rhizobia in nitrogen fixation and their contribution to soil fertility, much less is known about the distribution and diversity of the bacteria strains in different areas of the world and which of the strains achieve optimal benefits for the host plants under specific soil and environmental conditions. This paper reviews the distribution, characterization, and commercialization of elite rhizobia strains in Africa.
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Affiliation(s)
- Clabe Wekesa
- Matthias Schleiden Institute of Genetics, Bioinformatics and Molecular Botany and Plant Physiology, Friedrich-Schiller-University Jena, Dornburger Str. 159, 07743 Jena, Germany; (C.W.); (K.M.O.); (A.C.U.F.)
| | - Abdul A. Jalloh
- International Centre of Insect Physiology and Ecology, P.O. Box 30772, Nairobi 00100, Kenya;
| | - John O. Muoma
- Department of Biological Sciences, Masinde Muliro University of Science and Technology, P.O. Box 190, Kakamega 50100, Kenya;
| | - Hezekiah Korir
- Crops, Horticulture and Soils Department, Egerton University, P.O. Box 536, Egerton 20115, Kenya;
| | - Keziah M. Omenge
- Matthias Schleiden Institute of Genetics, Bioinformatics and Molecular Botany and Plant Physiology, Friedrich-Schiller-University Jena, Dornburger Str. 159, 07743 Jena, Germany; (C.W.); (K.M.O.); (A.C.U.F.)
| | - John M. Maingi
- Department of Biochemistry, Microbiology and Biotechnology, Kenyatta University, P.O. Box 43844, Nairobi 00100, Kenya;
| | - Alexandra C. U. Furch
- Matthias Schleiden Institute of Genetics, Bioinformatics and Molecular Botany and Plant Physiology, Friedrich-Schiller-University Jena, Dornburger Str. 159, 07743 Jena, Germany; (C.W.); (K.M.O.); (A.C.U.F.)
| | - Ralf Oelmüller
- Matthias Schleiden Institute of Genetics, Bioinformatics and Molecular Botany and Plant Physiology, Friedrich-Schiller-University Jena, Dornburger Str. 159, 07743 Jena, Germany; (C.W.); (K.M.O.); (A.C.U.F.)
- Correspondence: ; Tel.: +49-3641949232
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Nakei MD, Venkataramana PB, Ndakidemi PA. Soybean-Nodulating Rhizobia: Ecology, Characterization, Diversity, and Growth Promoting Functions. Front Sustain Food Syst 2022. [DOI: 10.3389/fsufs.2022.824444] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
The worldwide increase in population continues to threaten the sustainability of agricultural systems since agricultural output must be optimized to meet the global rise in food demand. Sub-Saharan Africa (SSA) is among the regions with a fast-growing population but decreasing crop productivity. Pests and diseases, as well as inadequate nitrogen (N) levels in soils, are some of the biggest restrictions to agricultural production in SSA. N is one of the most important plant-limiting elements in agricultural soils, and its deficit is usually remedied by using nitrogenous fertilizers. However, indiscriminate use of these artificial N fertilizers has been linked to environmental pollution calling for alternative N fertilization mechanisms. Soybean (Glycine max) is one of the most important legumes in the world. Several species of rhizobia from the four genera, Bardyrhizobium, Rhizobium, Mesorhizobium, and Ensifer (formerly Sinorhizobium), are observed to effectively fix N with soybean as well as perform various plant-growth promoting (PGP) functions. The efficiency of the symbiosis differs with the type of rhizobia species, soybean cultivar, and biotic factors. Therefore, a complete understanding of the ecology of indigenous soybean-nodulating rhizobia concerning their genetic diversity and the environmental factors associated with their localization and dominance in the soil is important. This review aimed to understand the potential of indigenous soybean-nodulating rhizobia through a synthesis of the literature regarding their characterization using different approaches, genetic diversity, symbiotic effectiveness, as well as their functions in biological N fixation (BNF) and biocontrol of soybean soil-borne pathogens.
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Omari RA, Yuan K, Anh KT, Reckling M, Halwani M, Egamberdieva D, Ohkama-Ohtsu N, Bellingrath-Kimura SD. Enhanced Soybean Productivity by Inoculation With Indigenous Bradyrhizobium Strains in Agroecological Conditions of Northeast Germany. Front Plant Sci 2022; 12:707080. [PMID: 35095938 PMCID: PMC8790476 DOI: 10.3389/fpls.2021.707080] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 12/16/2021] [Indexed: 05/30/2023]
Abstract
Commercial inoculants are often used to inoculate field-grown soybean in Europe. However, nodulation efficiencies in these areas are often low. To enhance biological nitrogen (N) fixation and increase domestic legume production, indigenous strains that are adapted to local conditions could be used to develop more effective inoculants. The objective of this study was to assess the ability of locally isolated Bradyrhizobium strains to enhance soybean productivity in different growing conditions of Northeast Germany. Three indigenous Bradyrhizobium isolates (GMF14, GMM36, and GEM96) were tested in combination with different soybean cultivars of different maturity groups and quality characteristics in one field trial and two greenhouse studies. The results showed a highly significant strain × cultivar interactions on nodulation response. Independent of the Bradyrhizobium strain, inoculated plants in the greenhouse showed higher nodulation, which corresponded with an increased N uptake than that in field conditions. There were significantly higher nodule numbers and nodule dry weights following GMF14 and GMM36 inoculation in well-watered soil, but only minor differences under drought conditions. Inoculation of the soybean cultivar Merlin with the strain GEM96 enhanced nodulation but did not correspond to an increased grain yield under field conditions. USDA110 was consistent in improving the grain yield of soybean cultivars Sultana and Siroca. On the other hand, GMM36 inoculation to Sultana and GEM96 inoculation to Siroca resulted in similar yields. Our results demonstrate that inoculation of locally adapted soybean cultivars with the indigenous isolates improves nodulation and yield attributes. Thus, to attain optimal symbiotic performance, the strains need to be matched with specific cultivars.
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Affiliation(s)
- Richard Ansong Omari
- Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg, Germany
- Faculty of Life Sciences, Humboldt-University of Berlin, Berlin, Germany
| | - Kun Yuan
- Institute of Global Innovation Research (GIR), Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Khoa Trinh Anh
- Institute of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Moritz Reckling
- Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg, Germany
| | - Mosab Halwani
- Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg, Germany
| | - Dilfuza Egamberdieva
- Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg, Germany
- Faculty of Biology, National University of Uzbekistan, Tashkent, Uzbekistan
| | - Naoko Ohkama-Ohtsu
- Institute of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Sonoko D. Bellingrath-Kimura
- Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg, Germany
- Faculty of Life Sciences, Humboldt-University of Berlin, Berlin, Germany
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9
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Benitez-Alfonso Y. George Washington Carver: A plant scientist's perspective. Curr Biol 2022; 32:R9-R13. [PMID: 35016001 DOI: 10.1016/j.cub.2021.11.058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Yoselin Benitez-Alfonso discusses the work and influence of African American agricultural scientist and inventor George Washington Carver, whose under-recognised studies of crop rotation and soil depletion greatly improved the lives of farmers, and whose teachings continue to inspire and remain relevant today.
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Bhuiyan MSH, Malek MA, Emon RM, Khatun MK, Khandaker MM, Alam MA. Increased yield performance of mutation induced Soybean genotypes at varied agro-ecological conditions. BRAZ J BIOL 2022; 84:e255235. [PMID: 35019108 DOI: 10.1590/1519-6984.255235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 09/27/2021] [Indexed: 12/17/2023] Open
Abstract
In soybean breeding program, continuous selection pressure on traits response to yield created a genetic bottleneck for improvements of soybean through hybridization breeding technique. Therefore an initiative was taken to developed high yielding soybean variety applying mutation breeding techniques at Plant Breeding Division, Bangladesh Institute of Nuclear Agriculture (BINA), Bangladesh. Locally available popular cultivar BARI Soybean-5 was used as a parent material and subjected to five different doses of Gamma ray using Co60. In respect to seed yield and yield attributing characters, twelve true breed mutants were selected from M4 generation. High values of heritability and genetic advance with high genotypic coefficient of variance (GCV) for plant height, branch number and pod number were considered as favorable attributes for soybean improvement that ensure expected yield. The mutant SBM-18 obtained from 250Gy provided stable yield performance at diversified environments. It provided maximum seed yield of 3056 kg ha-1 with highest number of pods plant-1 (56). The National Seed Board of Bangladesh (NSB) eventually approved SBM-18 and registered it as a new soybean variety named 'Binasoybean-5' for large-scale planting because of its superior stability in various agro-ecological zones and consistent yield performance.
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Affiliation(s)
- M S H Bhuiyan
- Bangladesh Institute of Nuclear Agriculture, Plant Breeding Division, Mymensingh, Bangladesh
| | - M A Malek
- Bangladesh Institute of Nuclear Agriculture, Plant Breeding Division, Mymensingh, Bangladesh
| | - R M Emon
- Bangladesh Institute of Nuclear Agriculture, Plant Breeding Division, Mymensingh, Bangladesh
| | - M K Khatun
- Bangladesh Institute of Nuclear Agriculture, Plant Breeding Division, Mymensingh, Bangladesh
| | - Mohammad Moneruzzaman Khandaker
- Universiti Sultan Zainal Abidin, School of Agriculture Science and Biotechnology, Faculty of Bioresources and Food Industry, Besut Campus, Besut, Terengganu, Malaysia
| | - Md Amirul Alam
- Universiti Malaysia Sabah, Horticulture and Landscaping Program, Faculty of Sustainable Agriculture, Sandakan Campus, Sandakan, Sabah, Malaysia
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Arashida H, Odake H, Sugawara M, Noda R, Kakizaki K, Ohkubo S, Mitsui H, Sato S, Minamisawa K. Evolution of rhizobial symbiosis islands through insertion sequence-mediated deletion and duplication. ISME J 2022; 16:112-121. [PMID: 34272493 PMCID: PMC8692435 DOI: 10.1038/s41396-021-01035-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 05/27/2021] [Accepted: 06/03/2021] [Indexed: 11/08/2022]
Abstract
Symbiosis between organisms influences their evolution via adaptive changes in genome architectures. Immunity of soybean carrying the Rj2 allele is triggered by NopP (type III secretion system [T3SS]-dependent effector), encoded by symbiosis island A (SymA) in B. diazoefficiens USDA122. This immunity was overcome by many mutants with large SymA deletions that encompassed T3SS (rhc) and N2 fixation (nif) genes and were bounded by insertion sequence (IS) copies in direct orientation, indicating homologous recombination between ISs. Similar deletion events were observed in B. diazoefficiens USDA110 and B. japonicum J5. When we cultured a USDA122 strain with a marker gene sacB inserted into the rhc gene cluster, most sucrose-resistant mutants had deletions in nif/rhc gene clusters, similar to the mutants above. Some deletion mutants were unique to the sacB system and showed lower competitive nodulation capability, indicating that IS-mediated deletions occurred during free-living growth and the host plants selected the mutants. Among 63 natural bradyrhizobial isolates, 2 possessed long duplications (261-357 kb) harboring nif/rhc gene clusters between IS copies in direct orientation via homologous recombination. Therefore, the structures of symbiosis islands are in a state of flux via IS-mediated duplications and deletions during rhizobial saprophytic growth, and host plants select mutualistic variants from the resultant pools of rhizobial populations. Our results demonstrate that homologous recombination between direct IS copies provides a natural mechanism generating deletions and duplications on symbiosis islands.
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Affiliation(s)
- Haruka Arashida
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-Ku, Sendai, 980-8577, Japan
| | - Haruka Odake
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-Ku, Sendai, 980-8577, Japan
| | - Masayuki Sugawara
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-Ku, Sendai, 980-8577, Japan
| | - Ryota Noda
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-Ku, Sendai, 980-8577, Japan
| | - Kaori Kakizaki
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-Ku, Sendai, 980-8577, Japan
| | - Satoshi Ohkubo
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-Ku, Sendai, 980-8577, Japan
| | - Hisayuki Mitsui
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-Ku, Sendai, 980-8577, Japan
| | - Shusei Sato
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-Ku, Sendai, 980-8577, Japan
| | - Kiwamu Minamisawa
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-Ku, Sendai, 980-8577, Japan.
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Goyal RK, Mattoo AK, Schmidt MA. Rhizobial-Host Interactions and Symbiotic Nitrogen Fixation in Legume Crops Toward Agriculture Sustainability. Front Microbiol 2021; 12:669404. [PMID: 34177848 PMCID: PMC8226219 DOI: 10.3389/fmicb.2021.669404] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 04/29/2021] [Indexed: 11/13/2022] Open
Abstract
Symbiotic nitrogen fixation (SNF) process makes legume crops self-sufficient in nitrogen (N) in sharp contrast to cereal crops that require an external input by N-fertilizers. Since the latter process in cereal crops results in a huge quantity of greenhouse gas emission, the legume production systems are considered efficient and important for sustainable agriculture and climate preservation. Despite benefits of SNF, and the fact that chemical N-fertilizers cause N-pollution of the ecosystems, the focus on improving SNF efficiency in legumes did not become a breeder’s priority. The size and stability of heritable effects under different environment conditions weigh significantly on any trait useful in breeding strategies. Here we review the challenges and progress made toward decoding the heritable components of SNF, which is considerably more complex than other crop allelic traits since the process involves genetic elements of both the host and the symbiotic rhizobial species. SNF-efficient rhizobial species designed based on the genetics of the host and its symbiotic partner face the test of a unique microbiome for its success and productivity. The progress made thus far in commercial legume crops with relevance to the dynamics of host–rhizobia interaction, environmental impact on rhizobial performance challenges, and what collectively determines the SNF efficiency under field conditions are also reviewed here.
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Affiliation(s)
- Ravinder K Goyal
- Agriculture and Agri-Food Canada, Lacombe Research and Development Centre, Lacombe, AB, Canada
| | - Autar K Mattoo
- Sustainable Agricultural Systems Laboratory, Agricultural Research Service, United States Department of Agriculture, Beltsville Agricultural Research Center, Beltsville, MD, United States
| | - Maria Augusta Schmidt
- Agriculture and Agri-Food Canada, Lacombe Research and Development Centre, Lacombe, AB, Canada
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Halwani M, Reckling M, Egamberdieva D, Omari RA, Bellingrath-Kimura SD, Bachinger J, Bloch R. Soybean Nodulation Response to Cropping Interval and Inoculation in European Cropping Systems. Front Plant Sci 2021; 12:638452. [PMID: 34149745 PMCID: PMC8211910 DOI: 10.3389/fpls.2021.638452] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Accepted: 05/06/2021] [Indexed: 05/31/2023]
Abstract
To support the adaption of soybean [Glycine max (L) Merrill] cultivation across Central Europe, the availability of compatible soybean nodulating Bradyrhizobia (SNB) is essential. Little is known about the symbiotic potential of indigenous SNB in Central Europe and the interaction with an SNB inoculum from commercial products. The objective of this study was to quantify the capacity of indigenous and inoculated SNB strains on the symbiotic performance of soybean in a pot experiment, using soils with and without soybean history. Under controlled conditions in a growth chamber, the study focused on two main factors: a soybean cropping interval (time since the last soybean cultivation; SCI) and inoculation with commercial Bradyrhizobia strains. Comparing the two types of soil, without soybean history and with 1-4 years SCI, we found out that plants grown in soil with soybean history and without inoculation had significantly more root nodules and higher nitrogen content in the plant tissue. These parameters, along with the leghemoglobin content, were found to be a variable among soils with 1-4 years SCI and did not show a trend over the years. Inoculation in soil without soybean history showed a significant increase in a nodulation rate, leghemoglobin content, and soybean tissue nitrogen concentration. The study found that response to inoculation varied significantly as per locations in soil with previous soybean cultivation history. An inoculated soybean grown on loamy sandy soils from the location Müncheberg had significantly more nodules as well as higher green tissue nitrogen concentration compared with non-inoculated plants. No significant improvement in a nodulation rate and tissue nitrogen concentration was observed for an inoculated soybean grown on loamy sandy soils from the location Fehrow. These results suggest that introduced SNB strains remained viable in the soil and were still symbiotically competent for up to 4 years after soybean cultivation. However, the symbiotic performance of the SNB remaining in the soils was not sufficient in all cases and makes inoculation with commercial products necessary. The SNB strains found in the soil of Central Europe could also be promising candidates for the development of inoculants and already represent a contribution to the successful cultivation of soybeans in Central Europe.
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Affiliation(s)
- Mosab Halwani
- Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg, Germany
| | - Moritz Reckling
- Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg, Germany
- Department of Crop Production Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Dilfuza Egamberdieva
- Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg, Germany
- Faculty of Biology, National University of Uzbekistan, Tashkent, Uzbekistan
| | - Richard Ansong Omari
- Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg, Germany
- Faculty of Life Sciences, Humboldt-University of Berlin, Berlin, Germany
| | - Sonoko D. Bellingrath-Kimura
- Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg, Germany
- Faculty of Life Sciences, Humboldt-University of Berlin, Berlin, Germany
| | - Johann Bachinger
- Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg, Germany
| | - Ralf Bloch
- Faculty of Landscape Management and Nature Conservation, Eberswalde University for Sustainable Development, Eberswalde, Germany
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Martins da Costa E, Almeida Ribeiro PR, Soares de Carvalho T, Pereira Vicentin R, Balsanelli E, Maltempi de Souza E, Lebbe L, Willems A, de Souza Moreira FM. Efficient Nitrogen-Fixing Bacteria Isolated from Soybean Nodules in the Semi-arid Region of Northeast Brazil are Classified as Bradyrhizobium brasilense (Symbiovar Sojae). Curr Microbiol 2020; 77:1746-1755. [PMID: 32322907 DOI: 10.1007/s00284-020-01993-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 04/10/2020] [Indexed: 10/24/2022]
Abstract
Soybean (Glycine max L.) is an important legume that greatly benefits from inoculation with nitrogen-fixing bacteria. In a previous study, five efficient nitrogen-fixing bacterial strains, isolated from nodules of soybean inoculated with soil from semi-arid region, Northeast Brazil, were identified as a new group within the genus Bradyrhizobium. The taxonomic status of these strains was evaluated in this study. The phylogenetic analysis of the 16S rRNA gene showed the high similarity of the five strains to Bradyrhizobium brasilense UFLA03-321T (100%), B. pachyrhizi PAC48T (100%), B. ripae WR4T (100%), B. elkanii USDA 76T (99.91%), and B. macuxiense BR 10303T (99.91%). However, multilocus sequence analysis of the housekeeping genes atpD, dnaK, gyrB, recA, and rpoB, average nucleotide identity, and digital DNA-DNA hybridization analyses supported the classification of the group as B. brasilense. Some phenotypic characteristics allowed differentiating the five strains and the type strain of B. brasilense from the two neighboring species (B. pachyrhizi PAC48T and B. elkanii USDA 76T). The nodC and nifH genes' analyses showed that these strains belong to symbiovar sojae, together with B. elkanii (USDA 76T) and B. ferriligni (CCBAU 51502T). The present results support the classification of these five strains as Bradyrhizobium brasilense (symbiovar sojae).
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Affiliation(s)
- Elaine Martins da Costa
- Departamento de Ciência Do Solo, Universidade Federal de Lavras, Lavras, MG, 37200-000, Brazil
- Universidade Federal Do Piauí, Campus Professora Cinobelina Elvas, Bom Jesus, Piauí, 64900-000, Brazil
| | - Paula R Almeida Ribeiro
- Departamento de Ciência Do Solo, Universidade Federal de Lavras, Lavras, MG, 37200-000, Brazil
| | | | - Rayssa Pereira Vicentin
- Departamento de Ciência Do Solo, Universidade Federal de Lavras, Lavras, MG, 37200-000, Brazil
| | - Eduardo Balsanelli
- Departamento de Bioquímica E Biologia Molecular, Universidade Federal Do Paraná, Curitiba, Paraná, 81531990, Brazil
| | - Emanuel Maltempi de Souza
- Departamento de Bioquímica E Biologia Molecular, Universidade Federal Do Paraná, Curitiba, Paraná, 81531990, Brazil
| | - Liesbeth Lebbe
- Laboratory of Microbiology, Faculty of Sciences, Ghent University, 9000, Ghent, Belgium
| | - Anne Willems
- Laboratory of Microbiology, Faculty of Sciences, Ghent University, 9000, Ghent, Belgium
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