Abstract
Abstract An experiment was conducted to analyze the differences in the nitrogenous compounds originating from symbiotic nitrogen fixation between soybean (Glycine max L. Merr.) cv. Peking inoculated with slow-growing Bradyrhizobium japonicum USDA110 (Hup+) and fast-growing Shinorhizobium fredii USDA193 (Hup−). The distribution of N in the nitrogenous compounds in the xylem sap showed that ureides accounted for 80, 78, and 85%, followed by asparagine for 4,3, 8.3, and 3.8%, and glutamine for 1.9, 3.5, and 1.3% of the total N in Peking (at the pod-setting stage) inoculated with USDA110 and USDA193, and Akisengoku (at the flowering stage) inoculated with A-1017, respectively. The distribution of asparagine and glutamine in the xylem sap of Peking inoculated with USDA193 was significantly higher than that of both cultivars inoculated with slow-growing rhizobia (p = 0.05) although the distribution of nitrogenous compounds other than amides did not show an appreciate difference among the three kinds of symbiosis. The results obtained in this experiment suggest that the main forms of transport of nitrogenous compounds in the xylem sap of soybean plants were ureides, regardless of the inoculated rhizobial species or genera, S. fredii and B. japonicum. Peking inoculated with fast-growing S. fredii USDA193 produced a relatively large amount of asparagine and glutamine compared to Peking inoculated with slow-growing B. japonicum USDA110.
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Claims 6
Claim · model-written summary
Ureides predominated in xylem sap nitrogen regardless of rhizobial species.
- Taxon
- soybean
Glycine maxe0 - Organ / stage
- xylem sape0
- Interactor
- S. frediie0symbiont
- Second interactor
- B. japonicum
Bradyrhizobium japonicume0symbiont - Outcome
- main forms of transport of nitrogenous compounds in the xylem sape0
- Qualifier
- regardless of the inoculated rhizobial species or generae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the main forms of transport of nitrogenous compounds in the xylem sap of soybean plants were ureides, regardless of the inoculated rhizobial species or genera, S. fredii and B. japonicum”
Claim · model-written summary
Ureides represented 80% of xylem sap N in Peking inoculated with USDA110.
- Taxon
- soybeanGlycine maxe2
- Material
- Pekinge1
- Organ / stage
- pod-setting stagee1
- Treatment
- inoculated with USDA110e1
- Interactor
- Bradyrhizobium japonicum USDA110Bradyrhizobium japonicume2symbiont
- Outcome
- ureidese0
- Value
- 80e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ureides accounted for 80, 78, and 85%”
e1“Peking (at the pod-setting stage) inoculated with USDA110 and USDA193, and Akisengoku (at the flowering stage) inoculated with A-1017, respectively”
e2“soybean (Glycine max L. Merr.) cv. Peking inoculated with slow-growing Bradyrhizobium japonicum USDA110”
Claim · model-written summary
Ureides represented 78% of xylem sap N in Peking inoculated with USDA193.
- Taxon
- soybeanGlycine maxe3
- Material
- Pekinge1
- Organ / stage
- pod-setting stagee1
- Treatment
- inoculated with USDA110 and USDA193e1
- Interactor
- Shinorhizobium fredii USDA193e2symbiont
- Outcome
- ureidese0
- Value
- 78e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ureides accounted for 80, 78, and 85%”
e1“Peking (at the pod-setting stage) inoculated with USDA110 and USDA193, and Akisengoku (at the flowering stage) inoculated with A-1017, respectively”
e2“fast-growing Shinorhizobium fredii USDA193”
e3“soybean (Glycine max L. Merr.)”
Claim · model-written summary
Ureides represented 85% of xylem sap N in Akisengoku inoculated with A-1017.
- Taxon
- soybeanGlycine maxe2
- Material
- Akisengokue1
- Organ / stage
- flowering stagee1
- Treatment
- inoculated with A-1017e1
- Interactor
- A-1017e1symbiont
- Outcome
- ureidese0
- Value
- 85%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ureides accounted for 80, 78, and 85%”
e1“Akisengoku (at the flowering stage) inoculated with A-1017”
e2“soybean (Glycine max L. Merr.)”
Claim · model-written summary
Asparagine was 4% of xylem sap N in Peking inoculated with USDA110.
- Taxon
- soybeanGlycine maxe2
- Material
- Pekinge1
- Treatment
- inoculated with USDA110e1
- Outcome
- asparaginee0
- Value
- 4,3e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“asparagine for 4,3, 8.3, and 3.8%”
e1“Peking (at the pod-setting stage) inoculated with USDA110 and USDA193”
e2“soybean (Glycine max L. Merr.)”
Claim · model-written summary
Asparagine and glutamine distributions were significantly higher with USDA193 than slow growing rhizobia.
- Taxon
- soybeanGlycine maxe1
- Material
- Pekinge0
- Treatment
- inoculated with USDA193e0
- Interactor
- USDA193e0symbiont
- Outcome
- distribution of asparagine and glutamine in the xylem sape0
- Direction
- highere0
- Comparator
- both cultivars inoculated with slow-growing rhizobiae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The distribution of asparagine and glutamine in the xylem sap of Peking inoculated with USDA193 was significantly higher than that of both cultivars inoculated with slow-growing rhizobia (p = 0.05)”
e1“soybean (Glycine max L. Merr.)”