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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1111/nph.19203
|2 doi
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|a pubmed24n1225.xml
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|a (NLM)37649265
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Holland, Bethany L
|e verfasserin
|4 aut
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| 245 |
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|a A genome-scale metabolic reconstruction of soybean and Bradyrhizobium diazoefficiens reveals the cost-benefit of nitrogen fixation
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 22.09.2023
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|a Date Revised 13.12.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2023 The Authors New Phytologist © 2023 New Phytologist Foundation.
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|a Nitrogen-fixing symbioses allow legumes to thrive in nitrogen-poor soils at the cost of diverting some photoassimilate to their microsymbionts. Effort is being made to bioengineer nitrogen fixation into nonleguminous crops. This requires a quantitative understanding of its energetic costs and the links between metabolic variations and symbiotic efficiency. A whole-plant metabolic model for soybean (Glycine max) with its associated microsymbiont Bradyrhizobium diazoefficiens was developed and applied to predict the cost-benefit of nitrogen fixation with varying soil nitrogen availability. The model predicted a nitrogen-fixation cost of c. 4.13 g C g-1 N, which when implemented into a crop scale model, translated to a grain yield reduction of 27% compared with a non-nodulating plant receiving its nitrogen from the soil. Considering the lower nitrogen content of cereals, the yield cost to a hypothetical N-fixing cereal is predicted to be less than half that of soybean. Soybean growth was predicted to be c. 5% greater when the nodule nitrogen export products were amides versus ureides. This is the first metabolic reconstruction in a tropical crop species that simulates the entire plant and nodule metabolism. Going forward, this model will serve as a tool to investigate carbon use efficiency and key mechanisms within N-fixing symbiosis in a tropical species forming determinate nodules
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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| 650 |
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|a carbon costs
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| 650 |
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|a mathematical model
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| 650 |
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|a nitrogen fixation
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| 650 |
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4 |
|a nitrogen metabolism
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| 650 |
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|a root nodule
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| 650 |
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4 |
|a soybean
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| 650 |
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|a Nitrogen
|2 NLM
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| 650 |
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|a N762921K75
|2 NLM
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| 650 |
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|a Soil
|2 NLM
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| 700 |
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|a Matthews, Megan L
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bota, Pedro
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sweetlove, Lee J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Long, Stephen P
|e verfasserin
|4 aut
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| 700 |
1 |
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|a diCenzo, George C
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 240(2023), 2 vom: 15. Okt., Seite 744-756
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:240
|g year:2023
|g number:2
|g day:15
|g month:10
|g pages:744-756
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|u http://dx.doi.org/10.1111/nph.19203
|3 Volltext
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|d 240
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|e 2
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|h 744-756
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