Harnessing ecosystem services from biological nitrogen fixation

Maseko, S.T.; Maredi, Mpelang P.; Mathews, C.; Dakora, Felix D.

doi:10.1016/b978-0-12-816436-5.00004-4

Cited by 5 publications

(4 citation statements)

References 117 publications

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“…Previous studies revealed that up to 90% of the seed nitrogen (N) content may be derived from N 2 fixation (Mastrodomenico and Purcell 2012). In agricultural environments, approximately 80% of the biologically fixed N is the result of symbiotic N fixation Maseko et al 2020). In addition to influencing soybean quality, soybeanrhizobium interactions are crucial for the sustainable intensification of global farming systems (Liu et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Mapping quantitative trait loci related to nodule number in soybean (Glycine max (L.) Merr.) in response to the Sinorhizobium (Ensifer) fredii HH103 NopT type III effector

Liu

Sun

Chen

et al. 2021

Journal of Plant Interactions

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Type III effectors play a vital role in the establishment of symbiosis. In this study, positive and negative effects of NopT on nodulation were detected in 30 soybean germplasms. The quantitative trait loci (QTL) related to nodule number were identified and their responses to NopT in recombinant inbred lines and chromosome segment substitution lines were evaluated. Ten QTL were identified on chromosomes 02, 05, 06, 10, and 13. One overlapping region on chromosome 02 was responsive to the wild-type rhizobium and the NopT mutant. The expression patterns of the genes in this overlapping region were determined and single nucleotide polymorphisms and haplotypes were analyzed to identify the candidate genes. Four candidate genes were identified as significantly responsive to NopT. Glyma.02G135100 and Glyma.02G100800 expression levels were directly affected by NopT. These results form the basis of future efforts to identify the plant host genes affected by type III effectors.

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Section: Introductionmentioning

confidence: 99%

Mapping quantitative trait loci related to nodule number in soybean (Glycine max (L.) Merr.) in response to the Sinorhizobium (Ensifer) fredii HH103 NopT type III effector

Liu

Sun

Chen

et al. 2021

Journal of Plant Interactions

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“…In symbiosis with rhizobia, legumes can fix atmospheric nitrogen (N) and contribute to meeting N needs in agriculture. Nitrogen fixation plays an important role in increasing crop Nuse efficiency and reducing N losses to the environment (Maseko et al 2020). Biological fixation of atmospheric N 2 by legumes refers to its conversion by N 2 -fixing bacteria called diazotrophs into plant-available ammonia (NH 3 ) using nitrogenase enzymes (Unkovich et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Assessment of Nitrogen Fixation by Mungbean Genotypes in Different Soil Textures Using 15N Natural Abundance Method

Diatta

Thomason

Abaye

et al. 2020

J Soil Sci Plant Nutr

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Ensuring food and nutritional security in light of high climate variability and a rapidly growing population remains a challenge. Mungbean (Vigna radiata (L.) Wilczek) is a short duration, drought-tolerant, and ureide-exporting legume crop capable of symbiotic atmospheric nitrogen fixation. Estimates of biological N 2 fixation by mungbean in different soil textures have not been extensively studied. We conducted this study to evaluate plant growth and N 2 fixation of five mungbean genotypes (Berken, 8735, IC 8972-1, STB#122, 223) inoculated with Bradyrhizobium spp. and grown on loamy sand and silt loam soils under glasshouse conditions. Mungbean dry matter yield, δ 15 N values, shoot content, amounts of N-fixed, and soil N uptake were all higher on the silt loam soil compared to the loamy sand soil, demonstrating the effects of soil properties on plant growth and N 2 fixation potential. Among genotypes, IC 8972-1 produced the highest biomass (7.85 g plant −1), shoot N content (200 mg plant −1), and soil N uptake (155 mg plant −1) than other genotypes. The significant interaction between soil texture and genotypes for root dry matter and %Ndfa indicates the major role of legume root-nodule bacteria in symbiotic N 2 fixation. This study demonstrated that N 2 fixation in mungbean is affected by both genotypes and soil properties, illustrating the need to consider soil properties in order to maximize N contribution from mungbean to agricultural production systems.

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“…Many free-living diazotrophs have also been found to exhibit functions other than N 2 fixation which may include (a) plant growth promotion, (b) mobilization of minerals and nutrient acquisition, (c) stress tolerance, (d) defense against pathogens, and (e) bioremediation. Such effects unrelated to BNF have previously been extensively reported ( Kennedy et al, 2004 , Barea et al, 2005 , Doty, 2011 , Gaiero et al, 2013 , Mendes et al, 2013 , Maseko et al, 2020 ) and will not be considered further here.…”

Section: Nitrogen-fixing Organismsmentioning

confidence: 92%

“…In situations where legumes are grown either as short-term cover crops or for the purpose of providing sources of green and brown manure production, all fixed N in the organic matter will be returned so there will be a direct contribution to SON ( Clement et al, 1998 ; Li et al, 2015 ; Maseko et al, 2020 ; Zalak and Parthsing, 2021 ). For example, Ladha et al (2000) examined the long-term effects of N fertilizer from different sources ( Azolla and S. rostrata grown in situ, or urea) on N balances, soil N pools and grain yields in a 14-yr double-crop rice rotation.…”

Section: Estimates Of Bnfmentioning

confidence: 99%

Biological nitrogen fixation and prospects for ecological intensification in cereal-based cropping systems

Ladha

Peoples

Reddy

et al. 2022

Field Crops Research

108

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Harnessing ecosystem services from biological nitrogen fixation

Cited by 5 publications

References 117 publications

Mapping quantitative trait loci related to nodule number in soybean (Glycine max (L.) Merr.) in response to the Sinorhizobium (Ensifer) fredii HH103 NopT type III effector

Mapping quantitative trait loci related to nodule number in soybean (Glycine max (L.) Merr.) in response to the Sinorhizobium (Ensifer) fredii HH103 NopT type III effector

Assessment of Nitrogen Fixation by Mungbean Genotypes in Different Soil Textures Using 15N Natural Abundance Method

Biological nitrogen fixation and prospects for ecological intensification in cereal-based cropping systems

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